研究者詳細 - 北川　浩之

論文 - 北川　浩之

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Dolphins from a prehistoric midden imply long-term philopatry of delphinids around Tokyo Bay 招待有り査読有り

Biological Journal of the Linnean Society 2023年11月

Delta initiation under low sediment discharge: Insights from Holocene incised valley fills north of Tokyo Bay, central Japan 招待有り査読有り国際共著

Susumu Tanabe, Wan Hong, Junghun Park, Hiroyuki Kitagawa

Marine Geology 463 巻 2023年9月

北海道オホーツク海沿岸のΔRの検討

小元久仁夫, 北川浩之, 平河内毅

季刊地理学 75 巻 ( 2 ) 頁： 78 - 85 2023年

記述言語：日本語出版者・発行元：東北地理学会

海洋生物化石の14C年代をより一層正確な暦年代に較正するためには，14C年代較正プログラムにΔR（試料採取地点の14C年代の補正値）を入力しなければならない。Omoto et al.（2010）が報告した北海道オホーツク海沿岸のΔR（－158 yr）は，太平洋沿岸や日本海沿岸のΔR（34 yr～345 yr）と乖離している。この結果を踏まえて北海道オホーツク海沿岸のΔRを新たに決定するため，斜里町のオシャマップ川遺跡とトーツル沼1遺跡から木炭と貝化石をペアとする合計4組の試料を収集してAMSによる14C年代測定を行い，Marine20にもとづきΔRを計算した。その結果，オシャマップ川遺跡III層のΔR（1σ）は－94±60 yrとなり，またトーツル沼1遺跡のPit 2から55±46 yrと135±45 yr（平均95±64 yr）のΔRが得られた。新たに決定されたΔRは，かつてトコロ貝塚の試料にもとづき決定された－158 yr（Marine20にもとづき計算すれば－323±42 yr）とは大きく異なる。

DOI： 10.5190/tga.75.2_78

CiNii Research

Cave occupations in Southeastern Arabia in the second millennium BCE: Excavation at Mugharat al-Kahf, North-Central Oman

Miki T., Kuronuma T., Kitagawa H., Kondo Y.

Arabian Archaeology and Epigraphy 33 巻 ( 1 ) 頁： 85 - 107 2022年11月

出版者・発行元：Arabian Archaeology and Epigraphy

This paper reports the results of excavation at Mugharat al-Kahf (WTN01) in Wādī Tanūf, North-central Oman. It also provides information on the nonmortuary and nonsedentary activities in central Oman during the Wādī Sūq period (2000–1600 BCE), as the subsistence and social arrangements of this period are the subject of much debate. Previous surveys had discovered a substantial amount of Wādī Sūq pottery at the site. This project took forward the excavation for further exploration. The excavation at Test Pit 1 identified Layers Ia and Ib, wherein pottery sherds, charred date stones and other samples for radiocarbon dating were discovered. These prove the cave's occupation during the early third millennium BCE, early second millennium BCE and the Islamic period. The analysis of artefacts and floral remains provided insights into the sojourn, storage and consumption of dates in the cave, and the mobile lifestyle in central Oman.

DOI： 10.1111/aae.12210

Scopus

Luminescence dating of Holocene sediment cores from a wave-dominated and mountainous river delta in central Vietnam

Qiaola S., Nguyen T.M.L., Ta T.K.O., Nguyen V.L., Gugliotta M., Saito Y., Kitagawa H., Nakashima R., Tamura T.

Quaternary Geochronology 70 巻 2022年5月

出版者・発行元：Quaternary Geochronology

Sediments of river deltas provide valuable records of past coastal environments. Optically-stimulated luminescence (OSL) dating has become an alternative to radiocarbon dating for constraining the sediment chronology in large deltas that allow for sufficient sunlight bleaching of sediments during the fluvial transport. However, its applicability to smaller deltas with mountainous riverine systems has not been confirmed yet. To check this, we examine multiple signals from two Holocene sediment cores in the wave-dominated Thu Bon River delta in central Vietnam. Two cores were collected, respectively, 3.9 km and 1.2 km inland from the present shoreline and both show a >-25-m thick succession of coarsening-upward mud to sand deposits. Coarse grains (180–250 μm in diameter) of quartz and K-feldspar, and fine grains (4–11 μm in diameter) of quartz and polymineral were extracted from the upper and lower parts of the cores for multi-grain measurements of quartz OSL, and of feldspar infrared-stimulated luminescence (IRSL) at 50 °C (IR50) and post-IR IRSL at 175 °C (pIRIR175) to determine burial ages. In addition, facies analysis and radiocarbon dating were conducted. The landward core consists of transgressive to early regressive estuarine and prodelta facies, which is overlain by a sandy beach-shoreface facies. The seaward core consists of a relatively simple shallowing-upward succession from muddy prodelta facies to sandy beach-shoreface facies. All luminescence ages except for pIRIR175 of fine grains are mostly consistent with the radiocarbon ages. Instead, pIRIR175 ages of fine grains are significantly overestimated with variable offsets. OSL and IR50 of fine grains provide reasonable age estimates, as these grains were likely well bleached during the transport even along a short and steep mountainous river. Consistent age estimates of all signals from sand indicate that sand was well-bleached in the beach and shoreface owing to the frequent sediment reworking by waves and currents. These results support the hypothesis that luminescence dating is applicable to Holocene wave-dominated deltas and reiterate that comparing different luminescence signals is an effective way to check reliability of the age estimates in environments where the sunlight bleaching is not ensured.

DOI： 10.1016/j.quageo.2022.101277

Scopus

コア堆積物の解析にもとづく菊川低地の形成過程

堀和明, 石井祐次, 田村亨, 佐藤善輝, 稲崎富士, 中西利典, 北川浩之, 廣内大助, 三笘加葉, 松多信尚

日本地理学会発表要旨集 2022s 巻 ( 0 ) 頁： 158 2022年

記述言語：日本語出版者・発行元：公益社団法人日本地理学会

はじめに　南海トラフで繰り返し生じてきた地震にともなう地殻変動や津波履歴の検討には，沿岸に分布する海成段丘や沖積低地といった地形やそれらを構成する堆積物が用いられてきた．これらの地形や堆積物の解析・分析を通して，地殻変動や津波に関する情報を抽出するためには，地形・地層の形成過程と氷河性海水準変動との関係を明らかにしておく必要がある．本発表では，遠州灘東部に位置する菊川低地の浜堤・砂丘上において採取したコア堆積物の解析・分析結果を報告するとともに，先行研究（鹿島ほか，1985；杉山ほか，1988）や既存資料（中部電力，2020）を踏まえた上で菊川低地の形成過程を論じる．調査対象地と方法　菊川は流域面積158 km2の小規模河川で，下流域において，東を牧之原台地，西を小笠山丘陵に限られる幅の狭い沖積低地を形成する．河口付近には最大標高20–30 mに達する海岸砂丘が分布する．　浜堤・砂丘上に位置する掛川市千浜でKICコア（現海岸線から2 km内陸，標高17.62 m，掘削長21 m），同市三俣でKIMコア（現海岸線から1.7 km内陸，標高7.87 m，掘削長23.3 m）を，機械ボーリングにより採取した．コア堆積物については，写真撮影，軟X線写真撮影，色調，かさ密度，砂泥比の測定をおこなった．また，DirectAMSおよび名古屋大にて放射性炭素年代測定を実施した．なお，KICコアについては，産総研で長石のOSL（IRSLおよびpost-IR IRSL）年代を測定した．結果と考察　KICコアは最下部約2 mにみられた泥層を除き，中粒砂を主体とする砂層で構成されていた．深度0–8 m付近の砂層は他の層準に比べて淘汰がよい傾向にあった．また，深度15.6–19 m付近の砂層には礫が含まれており，深度16.5 m付近では礫が35%程度を占めていた．最下部の泥層は貝殻片を含み，珪藻について概査をしたところ干潟に特徴的な種が多くみられた．　KIMコアは，深度0–7 mが砂層で構成され，その下位にある深度7–16 mは礫を含む砂層を主体とするが，深度7–8.4，9–9.3，10–10.6，15.6–16 mはおもに礫からなっていた．深度16–22 mは貝殻片や有機物を含む泥層からなっており，深度22 mで更新統と考えられる泥層に達した．　年代測定結果から，KICコアでは約6 ka頃に泥層を覆う砂層の堆積が始まったと考えられる．標高0 m付近のOSL年代値は放射性炭素年代値とも整合的であり，6–3.7 kaにかけて砂が平均7 m/kyrで堆積したことを示唆する．一方，KIMコアでは，7.9–7.6 ka頃に砂層の堆積が急激に生じたと推定される．両地点よりも陸側では，泥層中にK-Ahテフラが確認されており，その分布標高は−5–−7 mである（中部電力，2020）．　KIMやKICコア堆積物にみられた砂層とその下位の泥層の境界深度は，KIMのほうがKICに比べて深い．既存の地質断面図（鹿島ほか，1985；杉山ほか，1988）においてもこれらに対比される砂層と泥層の境界深度が陸側に向かって浅くなる特徴がみられる．完新世の海進時における海岸線の向きが現在とほぼ同じ（西北西―東南東）と仮定すると，バリアと考えられる砂礫堆が海水準上昇にともなって陸側に移動しながら下位の泥層を覆っていった可能性がある．また，この砂礫堆はKIC付近で陸側への移動を止め，より陸側には浅い水域が広がり，K-Ahを含む泥層が堆積していったと考えられる．　両コアには礫を含む砂層や礫層が確認されたが，礫を含む砂層の上限はKIMコアで標高約1.2 m，KICコアで標高約2.1 mであった．堆積物の特徴と海水準との関係を詳細に明らかにすることで，今後，地殻変動量を定量的に見積もることができるだろう．謝辞　放射性炭素年代測定の一部は，名古屋大学宇宙地球環境研究所でおこなわれた．本研究は科研費（課題番号：18H00765，18H01310）の助成を受けたものである．

DOI： 10.14866/ajg.2022s.0_158

CiNii Research

The spatio-temporal structure of the Lateglacial to early Holocene transition reconstructed from the pollen record of Lake Suigetsu and its precise correlation with other key global archives: Implications for palaeoclimatology and archaeology

Nakagawa T., Tarasov P., Staff R., Bronk Ramsey C., Marshall M., Schlolaut G., Bryant C., Brauer A., Lamb H., Haraguchi T., Gotanda K., Kitaba I., Kitagawa H., van der Plicht J., Yonenobu H., Omori T., Yokoyama Y., Tada R., Yasuda Y.

Global and Planetary Change 202 巻 2021年7月

出版者・発行元：Global and Planetary Change

Leads, lags, or synchronies in climatic events among different regions are key to understanding mechanisms of climate change, as they provide insights into the causal linkages among components of the climate system. The well-studied transition from the Lateglacial to early Holocene (ca. 16–10 ka) contains several abrupt climatic shifts, making this period ideal for assessing the spatio-temporal structure of climate change. However, comparisons of timings of past climatic events among regions often remain hypothetical because site-specific age scales are not necessarily synchronised to each other. Here we present new pollen data (n = 510) and mean annual temperature reconstruction from the annually laminated sediments of Lake Suigetsu, Japan. Suigetsu's 14C dataset is an integral component of the IntCal20 radiocarbon calibration model, in which the absolute age scale is established to the highest standard. Its exceptionally high-precision chronology, along with recent advances in cosmogenic isotope studies of ice cores, enables temporally coherent comparisons among Suigetsu, Greenland, and other key proxy records across regions. We show that the onsets of the Lateglacial cold reversal (equivalent to GS-1/Younger Dryas) and the Holocene were synchronous between East Asia and the North Atlantic, whereas the Lateglacial interstadial (equivalent to GI-1/Bølling-Allerød) started ca. two centuries earlier in East Asia than in the North Atlantic. Bimodal migration (or ‘jump’) of the westerly jet between north and south of the Tibetan plateau and Himalayas may have operated as a threshold system responsible for the abruptness of the change in East and South (and possibly also West) Asia. That threshold in Asia and another major threshold in the North Atlantic, associated with switching on/off of the Atlantic meridional overturning circulation (AMOC), were crossed at different times, producing a multi-centennial asynchrony of abrupt changes, as well as a disparity of climatic modes among regions during the transitional phases. Such disparity may have disturbed zonal circulation and generated unstable climate during transitions. The intervening periods with stable climate, on the other hand, coincided with the beginnings of sedentary life and agriculture, implying that these new lifestyles and technologies were not rational unless climate was stable and thus, to a certain extent, predictable.

DOI： 10.1016/j.gloplacha.2021.103493

Scopus

Breakthrough in purification of fossil pollen for dating of sediments by a new large-particle on-chip sorter

Kasai Y., Leipe C., Saito M., Kitagawa H., Lauterbach S., Brauer A., Tarasov P.E., Gosla T., Arai F., Sakuma S.

Science Advances 7 巻 ( 16 ) 2021年4月

記述言語：英語出版者・発行元：Science Advances

Particle sorting is a fundamental method in various fields of medical and biological research. However, existing sorting applications are not capable for high-Throughput sorting of large-size (100 micrometers) particles. Here, we present a novel on-chip sorting method using traveling vortices generated by on-demand microjet flows, which locally exceed laminar flow condition, allowing for high-Throughput sorting (5 kilohertz) with a record-wide sorting area of 520 micrometers. Using an activation system based on fluorescence detection, the method successfully sorted 160-micrometer microbeads and purified fossil pollen (maximum dimension around 170 micrometers) from lake sediments. Radiocarbon dates of sorting-derived fossil pollen concentrates proved accurate, demonstrating the method's ability to enhance building chronologies for paleoenvironmental records from sedimentary archives. The method is capable to cover urgent needs for high-Throughput large-particle sorting in genomics, metabolomics, and regenerative medicine and opens up new opportunities for the use of pollen and other microfossils in geochronology, paleoecology, and paleoclimatology.

DOI： 10.1126/sciadv.abe7327

Scopus

PubMed

アラビア半島におけるホモ・サピエンスの定着:オマーン内陸部ワディ・タヌーフ1号洞穴遺跡の土層堆積状況と年代について

近藤康久, 北川浩之

「パレオアジア文化史学」計画研究A03　2020年度研究成果報告書(PaleoAsia Project Series 31　) 31 巻頁： 1 - 4 2021年

ホモ・サピエンスの拡散モデルの構築に向けた過去25万年間の気候変動の再現

北川浩之

「パレオアジア文化史学」計画研究A03　2020年度研究成果報告書(PaleoAsia Project Series ) 34 巻頁： 13 - 17 2021年

Revised chronology of the ICDP Dead Sea deep drill core relates drier-wetter-drier climate cycles to insolation over the past 220 kyr

Goldstein S.L., Kiro Y., Torfstein A., Kitagawa H., Tierney J., Stein M.

Quaternary Science Reviews 244 巻 2020年9月

出版者・発行元：Quaternary Science Reviews

The Dead Sea Deep Drilling Project drilled 456 meters into the deepest floor of the Dead Sea and recovered a record of the past ∼220 kyr of the Levant hydroclimate history, that is, Marine Isotope Stages 1–7, including the last three interglacials and the last two glacials. We present an updated chronology of the core from DSDDP Hole 5017-1-A, from the Dead Sea's deepest basin, that refines our previous chronology (Torfstein et al. 2015) based on new information. The updated chronology uses the following approaches: (1) radiocarbon ages of Kitagawa et al. (2017); (2) correlation of specific layers in the core with U–Th-dated sediments on the Dead Sea margin, particularly during the interval of glacial Lake Lisan (MIS 2,3,4); (3) tuning of the δ18O data of DSDDP core aragonite to the U–Th dated oxygen isotopes of regional cave speleothems; and (4) tuning of the DSDDP aragonite δ18O data to summer insolation curves when the cave δ18O chronology is less clear. The updated chronology reveals a strong relationship between the sedimentary facies comprising the core and Northern Hemisphere summer insolation variations. It shows that sequences of sediments marking drier/wetter/drier climate conditions in the lake's watershed (e.g., salt/muds/salt, respectively) appear across the flank/peak/flank segments of several summer insolation peaks. In particular, the transition from drier to wetter sedimentary facies during mid-latitude insolation peaks coincides with the intervals of sapropel conditions in the Mediterranean, reflecting enhanced Nile flow due to intense African monsoonal conditions, and marking the impact of the tropical precession cycles on Eastern Mediterranean hydroclimate. This pattern was lost during MIS 2,3,4, when mostly sequences of primary aragonite are punctuated by gypsum precipitation during Heinrich events, marking the strong impact of the North Atlantic on the last glacial Levant hydroclimate.

DOI： 10.1016/j.quascirev.2020.106460

Scopus

A protocol for using attenuated total reflection Fourier-transform infrared spectroscopy for pre-screening ancient bone collagen prior to radiocarbon dating

Naito Y.I., Yamane M., Kitagawa H.

Rapid Communications in Mass Spectrometry 34 巻 ( 10 ) 頁： e8720 2020年5月

記述言語：英語出版者・発行元：Rapid Communications in Mass Spectrometry

Rationale: Pre-screening of bone collagen quality is important to reduce the cost for analyses such as radiocarbon (14C) dating with accelerator mass spectrometry in archaeological studies. We developed a pre-screening protocol based on attenuated total reflection (ATR) Fourier-transform infrared spectroscopy (FTIR) for assessing the chemical composition and mineralogy of ancient bone samples. Methods: ATR-FTIR measurements were performed on bulk bones of diverse origin and age before collagen extraction. The percentage nitrogen of bulk bones, as well as the weight percentage, and the percentage carbon and nitrogen of extracted organic matter were noted. Several machine learning algorithms were applied to the spectral data and compared for their efficacy in screening for well preserved collagen. Results: The results showed that (a) the first derivative of the spectral data was better suited to screening than the raw FTIR data, especially for a wider spectral range and (b) certain classification algorithms [e.g. gradient boosting machine (GBM)] were able to efficiently predict the degree of preservation in bone samples. Conclusions: This pre-screening protocol can serve as a fast, concise and inexpensive pre-screening tool for determining relative degrees of preservation before collagen extraction and subsequent 14C dating. The screening power based on the machine learning techniques can be further improved by accumulating the FTIR spectral data of bones.

DOI： 10.1002/rcm.8720

Web of Science

Scopus

PubMed

ホモ・サピエンスのアジアへの拡散モデルの構築（2）―気候・環境への適応国際共著

北川浩之

パレオアジア文化史学, 計画研究A03 令和元年度研究報告書 2019 巻頁： 33 - 36 2020年

パキスタンThar砂漠堆積物のOSL年代による石器年代の制約国際共著

田村亨, 北川浩之

パレオアジア文化史学, 計画研究A03 令和元年度研究報告書 2019 巻頁： 23 - 28 2020年

ホモ・サピエンスのアジアへの拡散モデルの構築（1）－気候の類似性

北川浩之

パレオアジア文化史学, 計画研究A03 平成30年度研究報告書 (PaleoAsia Project Serise) 20 巻頁： 39 - 44 2019年

Radiocarbon chronology of the dsddp core at the deepest floor of the dead sea

Kitagawa H., Stein M., Goldstein S.L., Nakamura T., Lazar B.

Radiocarbon 59 巻 ( 2 ) 頁： 383 - 394 2017年4月

出版者・発行元：Radiocarbon

This study establishes the chronological framework of the sedimentary sequence deposited Dead Sea, ICDP 5017-1, Radiocarbon chronology during the past 50 ka at the deepest part of the Dead Sea (the ICDP 5017-1 site), which was recovered by the Dead Sea Deep Drilling Project (DSDDP) under the auspices of the International Continental Scientific Drilling Program (ICDP). The age-depth model is constructed using 3814C dates of terrestrial plant remains in a composite 150-m-long profile, generated by anchoring 32 marker layers identified in five cores. The sedimentary records at the ICDP 5017-1 site fills gaps in those obtained from the exposed sections at the high margins of the lake, particularly in times of lake-level retreat, and allows for a high-resolution comparison between the lake’s margins and deepest floor.

DOI： 10.1017/RDC.2016.120

Scopus

Radiocarbon Chronology of the DSDDP Core at the Deepest Floor of the Dead Sea 査読有り

Kitagawa, H., M. Stein, S. L. Goldstein, T. Nakamura, B. Lozar

Radiocarbon 59 巻 ( 2 ) 頁： 383-394 2017年

Evidences for centennial dry periods at ~3300 and ~2800 cal. yr BP from microfacies analyses of the Dead Sea sediments

1. I. Neugebauer, A. Brauer, M. J. Schwab, P. Dulski, U. Frank, E. Hadzhiivanova, H. Kitagawa, T. Litt, V. Schiebel, N. Taha and N. D Waldmann, DSDDP Scientific Party

The Holocene 2015年

Quantitative analysis of intraspecific variations in the carbon and oxygen isotope compositions ofthe modern cool-temperate brachiopod Terebratulina

2. H. Takayanagi, R. Asami, T. Otake, O. Abe, T. Miyajima, H. Kitagawa, Y. Iryu

Geochimica et Cosmochimica Acta 2015年

Characteristics of 14C and 13C of carbonate aerosols in dust storm events in China 査読有り

( 164-165 ) 頁： 297-303 2015年

East Asian Monsoon controls on the inter-annual variability in precipitation isotope ratio in Japan 査読有り

N. Kurita, Y. Fujiyoshi, T. Nakayama, Y. Matsumi, H. Kitagawa

Clim. Past. 11 巻頁： 339-353 2015年

炭素14年代法による高精度年代決定と編年モデル構築招待有り

北川浩之

ぶんせき 2 巻頁： 52-57 2014年

Lithologies and depositional environments of the last two climatic cycles in the deep hypersaline Dead Sea: New observations from the ICDP Dead Sea Deep Drilling Project (DSDDP) 査読有り

I. Neugebauer, N. D Waldmann, M. J Schwab, A. Brauer, Y. Enzel, H. Kitagawa, U. Frank, P. Dulski, A. Agnon, D. Ariztegui, Z. Ben-Avraham, S. L. Goldstein, M. Stein

Quaternary Science Reviews ( 102 ) 頁： 149-165 2014年

Water pH and temperature in Lake Biwa from MBT0/CBT indices during the last 280000 years 査読有り

T. Ajioka, M. Yamamoto, K. Takemura, A. Hayashida, and H. Kitagawa

Clim. Past ( 10 ) 頁： 1843–1855 2014年

Integration of the old and new lake Suigetsu (Japan) terrestrial radiocarbon calibration data sets. 査読有り

R. A Staff, G. Schlolaut, C. Bronk Ramsey, F. Brock, C. L Bryant, H. Kitagawa, J. van der Plicht, M. H. Marshall, A. Brauer, H. F. Lamb, R. L Payne, P. Tarasov, T. Haraguchi, K. Gotanda, H. Yonenobu,Y. Yokoyama,T. Nakagawa, Suigetsu 2006 Project Members

55 巻 ( 2 ) 頁： 2049–2058 2013年8月

水月湖年縞堆積物の14C年代測定招待有り

北川浩之

Isotope News 4 巻頁： 15-19 2013年

放射性炭素年代測定―最近10年間の進展

北川浩之

月刊地球号外 35 巻 ( 9 ) 頁： 494-501 2013年

Determining the age of the Kawagodaira eruption in Japan by wiggle matching and estimation of regional age offset

Radiocarbon 55 巻 ( 2 ) 頁： 2049-2058 2013年

An approach toward automatic graphitization of CO2 samples for AMS 14C measurements 査読有り

S. Nagasawa, H. Kitagawa, T. Nakanishi, S. Tanabe, W. Hong

Nuclear Instruments and Methods in Physics Research B 294 巻頁： 266-269 2012年

CO2-laser decomposition method of carbonate for AMS 14C measurements 査読有り

H. Kitagawa

Nucl. Instr. and Meth. in Phys. Res. B 294 巻頁： 218-220 2012年

A complete terrestrial radiocarbon record for 11.2 to 52.8 kyr B.P. 査読有り

C. Bronk Ramsey, R. A. Staff, C. L. Bryant, F. Brock, H. Kitagawa, J. van der Plicht, G. Schlolaut, M. H. Marshall, A. Brauer, H. F. Lamb, R. L. Payne, P. E. Tarasov, T. Haraguchi, K. Gotanda, H. Yonenobu, Y. Yokoyama, R. Tada, T. Nakagawa

Science 338 巻頁： 370-374 2012年

Carbon- and oxygen-isotope compositions of a modern deep-water brachiopod Campagea japonica collected off Aguni-jima, Central Ryukyu Islands, southwestern Japan 査読有り

H. Takayanagi, R. Asami, O. Abe, H. Kitagawa, T. Miyajima and Y. Iryu

Geochemical Journal 46 巻 ( 2 ) 頁： 77-87 2012年

琵琶湖における過去5万年間の火山灰と堆積物査読有り

竹村恵二・岩部智紗・林田明・檀原　徹・北川浩之・原口強・佐藤智之・石川尚人

第四紀研究 49 巻 ( 3 ) 頁： 147-160 2010年

Radiocarbon content of lignin-enriched fraction in core sediment from Lake Biwa, central Japan 査読有り

H. Kitagawa, J. Lim, K. Takemura, A. Hayashida, T. Haraguchi

Nucl. Instr. and Meth. in Phys. Res. B 268 巻頁： 1077-1079 2010年

担当区分：筆頭著者記述言語：英語掲載種別：研究論文（学術雑誌）

The transport and deposition of terrestrially derived organic matter (TOM) into lake and ocean is a key
but poorly constrained aspect of the modern global carbon cycle. An attempt has been done for estimating
a transport time of TOM from the drainage basin of Lake Biwa, the largest lake in Japan. We have
determined the 14C contents of the lignin-enriched fraction of the core sediment from the central part
of Lake Biwa. The age of lignin-enriched fraction at the deposition time was estimated to be 7.5 103
years for the last glacial interval. Even in Lake Biwa with more than 100 rivers from the relatively small
drainage basin (3850 km2), TOM was transported at very long time (>103 years).

Element and mineral characterization of dust emission from the saline land at Songnen Plain, Northeastern China 査読有り

02. B. Chen B, H. Kitagawa, K. Hu, DM. Jie, JP Yang, JM. Li

Journal of Environmental Science-China 21 巻 ( 10 ) 頁： 1363-1370 2009年

A similar to 30,000-year record of environmental changes inferred from Lake Chen Co, Southern 査読有り

LP. Zhu, XL. Zhen XL, JB. Wang JB, HY. Lu HY, MP. Xie MP, H. Kitagawa, G. Possnert G.

Journal of Paleolimnology 42 巻 ( 3 ) 頁： 343-358 2009年

Coral Sr/Ca and Mg/Ca records in Con Dao Island off the Mekong Delta: Assessment of their potential for monitoring ENSO and East Asian monsoon 査読有り

T. Mitsuguchi, Dang, X. Phong, H. Kitagawa, M. Uchida and Y. Shibata

Global and Planetary Change 63 巻 ( 4 ) 頁： 341-352 2008年

Dust transport from the northeastern China inferred from carbon stable isotopes of atmospheric dust carbonate. Amospheric Environment 査読有り

B. Chen, H. Kitagawa, D. Jie, K. Hu, J. Lim

Amospheric Environment 42 巻頁： 4790-4796 2008年

Late-Holocene vegetation changes and human impact in the Changbai Mountains area, Northeast China. 査読有り

M. Makohonienko, H. Kitagawa, T. Fujiki, X. Liu, Y. Yasuda and H. Yin

Quaternary International 184 巻頁： 94-108 2008年

Transition of solar cycle length in association with the occurrence of grand solar minima indicated by radiocarbon content in tree-rings. 査読有り

3 巻 ( 3 ) 頁： 208-212 2008年

*Radiocarbon concentration of lake sediment cellulose from Lake Erhai in southwest China 査読有り

H. Kitagawa, S. M. Tareq, H. Matsuzaki, N. Inoue, E. Tanoue and Y. Yasuda

Nucl. Instr. and Meth. in Phys. Res. B 259 巻頁： 526–529 2007年

担当区分：筆頭著者記述言語：英語掲載種別：研究論文（学術雑誌）

To improve age models for lake sediment cores without suitable 14C dating materials such as terrestrial plant fossils, we investigated the radiocarbon dating of lake sediment cellulose. The cellulose fraction in the sediments was obtained by a sequential decomposition of other organic matter, and subsequently dated by AMS. In general, 14C ages of the lake sediment cellulose obtained from a 10-m sediment core from Lake Erhai on the Yunnan-Guizhou Plateau are in agreement with 14C dates from terrestrial plant fossils. For the early Holocene, however, differences of up to 1000 14C years are observed between lake sediment cellulose and terrestrial plant fossils. This disagreement is probably caused by the contribution of 14C-depleted cellulose synthesized by aquatic plants/algae in the lake. To obtain a precise

Magnesium isotope analysis of different chlorophyll forms in marine phytoplankton using multi-collector ICP-MS 査読有り

K. Ra and H. Kitagawa

J. Anal. At. Spectrom. 22 巻頁： 817-821 2007年

記述言語：英語掲載種別：研究論文（学術雑誌）

A new separation method of magnesium in the different chlorophyll forms, including chlorophyll a, b, c1 + c2 and c3, of phytoplankton, was developed for isotope measurements. Our method is based on a two-step separation using HPLC and a C18 column. The method made it possible to determine the magnesium isotopes (d25Mg and d26Mg) of the particular chlorophyll forms in marine living phytoplankton with a high precision using a multi-collector ICP-MS. The differences of d26Mg values among commercial chlorophylls (four types of chlorophyll a and two types of chlorophyll b) and the different chlorophyll forms of marine diatom-rich phytoplankton collected from the Northwest Pacific show variations of 1.5% and 0.65%, respectively. We found a slight enrichment in the heavier magnesium isotopes in chlorophylls relative to sea-water: 0.58%, 0.74%, 0.27% and 0.35% on d26Mg for chlorophyll a, b, c1 + c2 and c3, respectively. Our data suggest a mass dependent fractionation of magnesium isotopes among species of photosynthetic organisms and the chlorophyll forms. The magnesium isotope analysis by chlorophyll forms might not only give a new insight into the biosynthetic pathways associated with chlorophylls but also be a potential environmental indicator preserved in marine phytoplankton and other photosynthetic organisms.

Environmental Magnetic Record and Paleosecular Variation Data for the Last 40 Kyrs from Lake Biwa Sediments, Central Japan. 査読有り

A. Hayashida, M. Ali, Y. Kuniko, H. Kitagawa, M. Torii, K. Takemura

Earth, Planets and Space 59 巻頁： 807-814 2007年

Tropical South China Sea Surface 14C record in an annually-banded coral 査読有り

T. Mitsuguchi, Dang, X. Phong, H. Kitagawa, M. Yoneda and Y. Shibata

Radiocarbon 47 巻 ( 2 ) 2007年

Variation of solar cyclicity during the Spoerer Minimum 査読有り

H. Miyahara, K. Masuda, Y. Muraki, H. Kitagawa and T. Nakamura

J. of Geophysical Research (Space Physics) 111 巻 ( A3 ) 頁： A03103 2006年3月

Sr/Ca ratio of Porites coral from Con Dao Island, South of Vietnam 査読有り

Dang, X. Phong, T. Mitsuguchi, H. Kitagawa, T. Uchida and Y. Shibata

Proc. of 10th Int'l Coral Reef Symposium 頁： 567-571 2006年

Seasonally specific responses of the East Asian monsoon to deglacial climate changes 査読有り

T. Nakagawa, P. E. Tarasov, H. Kitagawa, Y. Yasuda and K. Gotanda

Geology 34 巻 ( 7 ) 頁： 521-524 2006年

記述言語：英語掲載種別：研究論文（学術雑誌）

The deglacial meltwater pulse in the North Atlantic that induced the Younger Dryas event also prompted climate cooling in East Asian monsoon regions such as Japan and coastal mid latitude China. However, very little is understood about the mechanism that can transmit changes in the North Atlantic to the Far East. Here we show that the shutdown of the North Atlantic thermohaline circulation brought about significantly lower temperatures and higher precipitation in the Japanese winter, whereas the change in the Japanese summer climate was considerably smaller. The cooling of the Siberian air mass seems to have caused an increased pressure gradient between Siberia and the West Pacific in winter, intensifying the winter monsoon. The Mongolian high pressure system and the westerly jet stream played an important role in the teleconnection. In contrast, the warming at the onset of the late glacial interstadial (GI-1; Bølling-Allerød) in the West Pacific did not have season-specific features, implying that the principal driving mechanism of this warming event may lie in a panhemispheric or global factor, such as insolation changes.

Seasonal changes of alkaline dust aerosol and its climatic influencing factors in western Songnen Plain, North-east China 査読有り

B. Chen, H, Ke, J. Dong-mei, H. Kitagawa and F. Li

Acta Scientiae Circumstantiae 26 巻 ( 3 ) 頁： 521-527 2006年

Pollen/event stratigraphy of the varved sediment of Lake Suigetsu, central Japan from 15,701 to 10,217 SG vyr BP (Suigetsu varve years before present): Description, interpretation, and correlation with other regions 査読有り

T. Nakagawa, H. Kitagawa, Y. Yasuda, P. E. Tarasov, K. Gotanda and Y. Sawai

Quaternary Science Reviews 24 巻頁： 1691–1701 2005年

Eolian quartz flux variations in Cheju Island, Korea, during the last 6500 yr and a possible Sun–monsoon linkage 査読有り

J. Lim, E. Matsumoto and H. Kitagawa

Quaternary Research 64 巻頁： 12–20 2005年

韓国南東部・蔚山断層の古地　震活動－慶州市葛谷里における第2次トレンチ調査－査読有り

木康弘・岡田篤正・竹村恵二・慶　在福・廣内大助・金　幸隆・伊藤　愛・大石　超・中村洋介・成瀬敏郎・北川浩之・渡辺満久

活断層研究 25 巻頁： 147-152 2005年

Late Quaternary faulting along the western margin of the Poronaysk Lowland in central Sakhalin, Russia 査読有り

H. Tsutsumi, Y. Suzuki, A. I. Kozhurin, M. I. Strel'tsov, T. Ueki, H. Goto, K. Okumura, R. F. Bulgakov and H. Kitagawa

Tectonophysics 407 巻頁： 257-268 2005年

The earliest record of major anthropogenic deforestation in the Ghab Valley, northwest Syria: a palynological study 査読有り

Y. Yasuda, H. Kitagawa and T. Nakagawa

Quaternary International 123/125 巻頁： 127-136 2004年

Radiocarbon contents in tree rings during the Sporer Minimum 査読有り

H. Miyahara, K. Masuda, Y. Muraki, T. Uemura, M. Kato, H. Toyoizumi, H. Furuzawa, T. Nakamura, H. Kitagawa and E. Matsumoto

Nucl. Instr. and Meth. in Phys. Res. B 233/224 巻頁： 655-659 2004年

High-resolution 14C analyses of annually-banded coral skeletons from Ishigaki Island, Japan: Implications for oceanography 査読有り

T. Mitsuguchi, H. Kitagawa, E. Matsumoto, Y. Shibata, M. Yoneda, T. Kobayashi, T. Uchida and N. Ahagon

Nucl. Instr. and Meth. in Phys. Res. B 223/224 巻頁： 455-459 2004年

Marin reservoir age in the south of Vietnam estimated from an annually-banded coral skeleton 査読有り

Dang X. Phong, T. Mitsuguchi, H. Kitagawa, Y. Shibata and T. Kobayashi

Radiocarbon 46 巻 ( 2 ) 頁： 657-660 2004年

Environmental archaeology at the Chengtoushan site, Hunan Province, China, and implications for environmental change and the rise and fall of the Yangtze River civilization 査読有り

Y. Yasuda, T. Fujiki, H. Nasu, M. Kato, Y. Morita, Y. Mori, M. Kanehara, S. Toyama, A. Yanoa, M. Okuno, H.

Quaternary International 123/125 巻頁： 149-158 2004年

Late-Holocene natural and anthropogenic vegetation changes in the Dongbei Pingyuan (Manchurian Plain), northeastern China 査読有り

M. Makohonienkoa, H. Kitagawa, T. Naruse, H. Nasu, A. Momohara, M. Okuno, T. Fujiki, X. Liug, Y. Yasuda and H. Ying

Quaternary International 123/125 巻頁： 71-88 2004年

Variation of the radiocarbon content of tree rings during the Spoerer Minimum 査読有り

H. Miyahara, K. Masuda, H. Furuzawa, Y. Muraki, T. Nakamura, H. Kitagawa and K. Arslanov:

Radiocarbon 46 巻 ( 2 ) 頁： 965-968 2004年

Late Holocene vegetation and environment at Cauduntou, west of Yangtze Delta, SW Jiangsu Province, East China 査読有り

M. Okuda, Y. Sato, L. H. Tang, M. Takahashi, S. Toyama, A. Yano, H. Kitagawa and Y. Yasuda

Quaternary International 123/125 巻頁： 39-47 2004年

Seasonal variations in settling fluxes of major components in the oligotrophic Shikoku Basin, the western North Pacific: coincidence of high biogenic flux with Asian dust supply in spring 査読有り

T. Li, T. Masuzawa and H. Kitagawa

Marine Chemistry 91 巻頁： 187-210 2004年

Flux and characteristics of the alkaline dusts in west Jilin province, China 査読有り

B. Chen, K, Hu, J. Dong-mei and H. Kitagawa

Ecology and Environment 13 巻 ( 2 ) 頁： 191-193 2004年

Holocene evolution, of the outer lake of Hwajinpo Lagoon on the eastern coast of Korea; environmental changes with Holocene sea-level fluctuation of the East Sea (Sea of Japan)

J. G. Yum, K. M. Yu, K. Takemura, T. Naruse, A. Kitamura, H. Kitagawa and J. C. Kim

Radiocarbon 46 巻 ( 2 ) 頁： 797-808 2004年

Seasonal and secular variations of atmospheric 14CO2 over the Western Pacific since 1994 査読有り

H. Kitagawa, H. Mukai, N. Nojiri, Y. Shibata, T. Kobayashi and T. Nojiri

Radiocarbon 46 巻 ( 2 ) 頁： 643-648 2004年

記述言語：英語掲載種別：研究論文（学術雑誌）

Air sample collections over the western Pacific have continued since 1992 as a part of Center for Global Environmental Research, National Institute for Environmental Studies (CGER-NIES) global environmental monitoring program. The air samples collected on the Japan-Australia transect made it possible to trace the seasonal and secular 14CO2 variations, as well as an increasing trend of greenhouse gases over the western Pacific. A subset of CO2 samples from latitudes of 10–15°N and 23–28°S were chosen for accelerator mass spectrometry (AMS) 14C analysis using a NIES-TERRA AMS with a 0.3–0.4% precision. These 14CO2 records in maritime air show seasonal variations superimposed on normal exponential decreasing trends with a time constant of about 16 yr. The Δ14C values in the Northern Hemisphere are lower those in the Southern Hemisphere by 3–4‰ during 1994–2002. The Northern Hemisphere record shows relatively high seasonality (2.3 ± 1.5‰) as compared with the Southern Hemisphere (1.3 ± 1.2‰). The maximum values of seasonal cycles appear in late autumn and early winter in the Northern and Southern Hemispheres, respectively. Oscillations of 1–10 yr over the western Pacific are found to correlate possibly with the El Niño/Southern Oscillation (ENSO) events.

*Asychronous climatic changes in the North Atlantic and Japan during the Last Termination 査読有り

T. Nakagawa, H. Kitagawa, Y. Yasuda, Pavel E. Tarasov, K. Nishida, K. Gotanda, Y. Sawai and Yangtze River Civilization Program Members

Science 299 巻頁： 688-691 2003年

加速器質量分析法査読有り

北川浩之

ケミカルエンジニャリング 48 巻 ( 10 ) 頁： 14-18 2003年

Monsoon changes and eolian dust deposition over the past 30,000 years in Cheju Island, Korea 査読有り

Y. Yatagi, K. Takemura, T. Naruse, H. Kitagawa, H. Fukusawa, M-H. Kim and Y. Yasuda

Transactions, Japanese Geomorphological Union 23 巻 ( 5 ) 頁： 821-831 2002年

Timing of sea-transgression during the past 2000 years in Akkeshi Low-land, Hokkaido, Northern Japan 査読有り

Y. Sawai and H. Kitagawa

Proc. 15th diatom Symposium 頁： 225-261 2002年

加速器質量分析法招待有り

北川浩之

ぶんせき ( 2003-3 ) 頁： 128-132 2002年

H. Hideshima, E. Matsumoto, O. Abe and H. Kitagawa 査読有り

Marine Reservoir correction of NW Pacific estimated from an annually banded coral of Ishigaki Island, southern Japan

Radiocarbon 43 巻 ( 2A ) 頁： 473-476 2001年

Coral reef evolution at the leeward side of Ishigaki Island, southwest Japan 査読有り

H. Yamano, O. Abe, H. Kitagawa, E. Niu and T. Nakamura

Radiocarbon 43 巻 ( 2B ) 頁： 899-908 2001年

The earliest record of major anthropogenic deforestation in the Ghab Valley, northwest Syria: a palynological study 査読有り

73/74 巻頁： 127-136 2000年

Vegetation and climate history since the last interglacial in Kurota Lowland, western Japan 査読有り

T. Takahara and H. Kitagawa

Palaeogeography, Palaeoclimatology and Paleoecology 115 巻頁： 123-134 2000年

Pollen–derived history of timber exploitation from the Roman period onwards in the Romanche valley, central French Alps 査読有り

T. Nakagawa, de Beaulieu and H. Kitagawa

Vegetation history and Archaeobotany 9 巻 ( 2 ) 頁： 85-89 2000年

Atmospheric radiocarbon calibration beyond 11,900 cal BP from Lake Suigetsu laminated sediments 査読有り

42 巻 ( 3 ) 頁： 369-380 2000年

Pre-bomb marine reservoir ages in the western Pacific: Preliminary results on Kyoto University collection 査読有り

M. Yoneda, H. Kitagawa, J. van der Plicht, M. Uchida, A. Tanaka, Y. Shibata, Morita, M. and T. Ohno

Nucl. Instr. and Meth. in Phys. Res. B 172 巻頁： 377-381 2000年

湖沼堆積物の宇宙線起源同位体分析による宇宙・太陽・地球環境変動の解読招待有り

北川浩之

月刊地球 22 巻 ( 3 ) 2000年

中国遼寧省新賓市北四平の泥炭層の花粉分析査読有り

尹懐寧・安田喜憲・北川浩之・北川淳子・藤木利之・山口健太郎

日本花粉学会誌 45 巻 ( 1 ) 頁： 71-77 1999年

宮本真二・安田喜憲・北川浩之・竹村恵二査読有り

福井県蛇ヶ上湿原における過去14000年間の環境変遷

日本花粉学会誌 45 巻 ( 1 ) 頁： 7-14 1999年

炭素14年代測定の現状と新展開招待有り

北川浩之

月刊地球 ( 26号外 ) 頁： 43-49 1999年

堆積物の年輪に注目した炭素14年代時計の補正招待有り

北川浩之

Isotope News 頁： 2-5 1998年9月

*Atmospheric radiocarbon calibration to 45,000 BP: late glacial fluctuations and cosmogenic isotope production 査読有り

H. Kitagawa and J. van der Plicht

Science 279 巻頁： 1187-1190 1998年

A 40,000-year varve chronology from Lake Suigetsu, Japan: extension of the radiocarbon calibration curve

H. Kitagawa and J. van der Plicht

Radiocarbon 40 巻 ( 1 ) 頁： 505-515 1998年

屋久杉年輪の炭素同位体比変動から推定される過去2000年間の気候変動招待有り

北川浩之・松本英二

気候研究ノート 191 巻頁： 1-13 1998年

地球環境解析のための宇宙からのトリガー招待有り

北川浩之

日本物理学会誌 53 巻頁： 6-12 1998年

Enrichment of sub-milligram size carbon samples 査読有り

H. Kitagawa and J. van der Plicht

Nucl. Instr. and Meth. in Phys. Res. B 123 巻頁： 218-220 1997年

Lake level changes and development of alluvial fans in Lake Tuz and the Konya basin during the last 24000 years on the Anatolian Plateau, Turkey

T. Naruse, H. Kitagawa and H. Matsubara

Japan Rev 8 巻頁： 173-192 1997年

Radiocarbon dating of plant remains and lipids in core sediments from Lake Kestel, Turkey. 査読有り

H. Kitagawa, Y. Yasuda, M. Nishimura and T. Nakamura

Japan Rev. 8 巻頁： 229-234 1997年

炭素14キャリブレーション年代域の拡大と湖沼堆積物招待有り

北川浩之

月刊地球 19 巻 ( 8 ) 頁： 487-490 1997年

マーカー・グレインを用いた絶対花粉分析法の検討査読有り

山口健太郎・安田喜憲・北川浩之・大野照文

日本花粉学会誌 43 巻頁： 223-234 1997年

Radiocarbon dating at the International Research Center for Japanese Studies 査読有り

9 巻頁： 223-234 1997年

Sedimentary facies of a 60.85 m core from Konya Basin, Turkey 査読有り

H. Kitagawa and Y. Yasuda

Japan Rev. 8 巻頁： 167-172 1997年

年縞堆積物から復元された三方湖とその周辺の最終氷期最寒冷期の古環境変動査読有り

福沢仁之・竹村恵二・林田明・北川浩之・安田喜憲

地形 17 巻頁： 323-341 1996年

Paleoenvironments in the last glacial maximum around the Naka-ikemi more, Fukui Prefecture, central Japan 査読有り

S. Miyamoto, Y. Yasuda and H. Kitagawa

Geographical reports of Tokyo Metropolitan University 31 巻頁： 131-147 1996年

福井県・敦賀市、中池見湿原堆積物の層相と年代査読有り

宮本真二・安田喜憲・北川浩之

地学雑誌 104 巻 ( 6 ) 頁： 865-873 1995年

14Cキャリブレーション年代域の拡大招待有り査読有り

北川浩之

第四紀研究 34 巻 ( 3 ) 頁： 185-190 1995年

*Climatic implications of d13C variations in a Japanese cedar (Cryptomeria Japonica) during the last two millennia 査読有り

H. Kitagawa and E. Matsumoto

Geophys. Res. Letters 22 巻 ( 6 ) 頁： 2215-2158 1995年

Carbon isotope variations within trunks of Japanese cedars from the Yakushima Island, southern Japan 査読有り

H. Kitagawa and E. Matsumoto

Geochemical J. 29 巻頁： 149-153 1995年

Carbon isotope variations within trunks of Japanese cedars from the Yakushima Island, southern Japan

H. Kitagawa and E. Matsumoto

Geochemical J. 29 巻頁： 149-153 1995年

AMS 14C dating of varved sediments from Lake Suigetsu, central Japan and atmospheric 14C change during the last Pleistocene 査読有り

H. Kitagawa, H. Fukusawa, T. Nakamura, M. Okamura, K. Takemura, A. Hayashida and Y. Yasuda

Radiocarbon 37 巻 ( 2 ) 頁： 371-378 1995年

AMS 14C measurements of dissolved inorganic carbon in pore water from a deep-sea “cold seep"giant claim community off Hatsushima Island, Sagami Bay, Japan 査読有り

T. Masuzawa, H. Kitagawa, T. Nakatsuka, N. Handa and T. Nakamura

Radiocarbon 37 巻 ( 2 ) 頁： 617-627 1995年

Seasonal variations in 14C concentrations of stratospheric CO2 measured with accelerator mass spectrometry 査読有り

T. Nakamura, T. Nakazawa, H. Handa, H. Kitagawa, T. Machida, A. Ikeda and E. Matsumoto

Nucl. Instr. and Meth. in Phys. Res. B 123 巻頁： 218-220 1994年

岩石磁気・古地磁気測定による水月湖の堆積環境変化の研究査読有り

糸田千鶴・兵頭政幸・林田明・北川浩之・安田喜憲

日本大学理学部自然科学研究所研究紀要 28 巻頁： 55-60 1994年

屋久杉に環境変動を探る招待有り

北川浩之

朝日百科「動物たちの地球」 ( 138 ) 頁： 14 1994年

C14年代が正確な年代に直結した招待有り

北川浩之

科学朝日 ( 1994年14月号 ) 頁： 33-34 1994年

竹村恵二・北川浩之・林田明・安田喜憲査読有り

三方湖・水月湖・黒田低地の堆積物の層相と年代－三方低地の最終間氷期以降の堆積環境－

地学雑誌 103 巻 ( 3 ) 頁： 233-242 1994年

d13C records of a Japanese cedar from Yakushima Island and past atmospheric CO2 査読有り

H. Kitagawa and E. Matsumoto

Geochemical. J. 27(6) 27 巻 ( 6 ) 頁： 391-396 1993年

三方湖表層堆積物中の花粉出現率の分布査読有り

中川毅・安田喜憲・北川浩之・田端英雄

日本花粉学会誌 39 巻 ( 1 ) 頁： 21-30 1993年

*A batch preparation method for graphite targets with low background for AMS 14C measurements 査読有り

H. Kitagawa, T. Masuzawa, T. Nakamura and E. Matsumoto

Radiocarbon 35 巻 ( 2 ) 頁： 295-300 1993年

Seaonal and secular d13C variations in annual growth rings of a Japanese cedar tree from Mt. Amagi, Izu Peninsula, central Japan 査読有り

H. Kitagawa and H. Wada

Geochemical J. 27 巻 ( 6 ) 頁： 391-396 1993年

Measurement of 14C concentrations of stratospheric CO2 by accelerator mass spectrometry 査読有り

T. Nakamura, T. Nakazawa, N. Nakai, H. Kitagawa, H. Handa, T. Itoh, T. Machida and E. Matsumoto

Radiocarbon 34 巻 ( 3 ) 頁： 745-752 1992年

炭素14年代法－少量試料の炭素14年代測定査読有り

北川浩之

国際日本文化研究センター紀要「日本研究」 6 巻頁： 103-113 1992年

Sulfate reduction using methane in sediments beneath a bathyal “cold seep" giant clam community off Hatsushima Island, Sagami Bay, Japan. 査読有り

T. Masuzawa, N. Handa, H. Kitagawa and M. Kusakabe

Earth and Plane. Science Letters 110 巻頁： 39-50 1992年

潜水調査用現場間隙水抽出装置による相模湾初島沖海底生物群集堆積物からの間隙水の採集：その2（「しんかい2000」第521潜行）

増澤敏行・北川浩之・半田暢彦

海洋技術センター試験研究報告JAMSTECTR DEEPSEA RESEARCH 頁： 7-15 1991年

Paleomagnetic dating of a core from Lake Suigetsu, Cental Japan 査読有り

Itota, C., Hyodo, M., Hayashida, A., Kitagawa, H. and Y. Yasuda

Rock magnetism and Paleogeophysics 18 巻頁： 31-35 1991年

潜水調査用現場間隙水抽出装置による相模湾初島沖海底生物群集堆積物からの間隙水の採集「しんかい2000」第449潜行）

増澤敏行・北川浩之・半田暢彦

海洋技術センター試験研究報告JAMSTECTR DEEPSEA RESEARCH 頁： 197-204 1990年

杉材セルロースの炭素同位体比－測定法及び杉材年輪１層内の変化

北川浩之

静岡大学地球科学報告 13 巻頁： 25-30 1987年

丹那断層面剥ぎ取り転写法

北川浩之・和田秀樹

静岡地学 ( 51 ) 頁： 1-4 1985年

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