Provenance analysis of psammitic gneisses in the Hida, Maizuru, Ryoke and Kurosegawa terranes, viewed from detrital heavy minerals
Provenance analysis of psammitic gneisses in the Hida, Maizuru, Ryoke and Kurosegawa terranes, viewed from detrital heavy minerals
批准号:
03452068
负责人:
ADACHI Mamoru
金额:
$4.42万
依托单位:
依托单位国家:
日本
项目类别:
Grant-in-Aid for General Scientific Research (B)
财政年份:
1991
资助国家:
日本
项目状态:
已结题
起止时间:
1991 至 1992
中文摘要
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英文摘要
(1) Precise electron microprobe analysis of monazite and zircon grains has been successful to develop a new dating method: CHIME (Chemical Th-U-total Pb Isochron Method).(2) CHIME ages of detrital monazite grains in Jurassic sandstones of the Mino and Hida terranes concentrate around 1750-1400 Ma, with minor concentrations around 1250, 850 and 250 Ma.(3) CHIME ages of detrital monazites from the Upper Triassic Nabae Group in the Maizuru terrane range largely from ca. 400 to 500 Ma, being much younger than those from the Mino and Hida terranes.(4) Monazite and zircon grains from the Gray Granite, intruding the Hida gneiss in central Japan, yield CHIME ages of ca. 250 Ma; this age is much different from the previously-reported Precambrian Rb-Sr whole-rock age for the Gray Granite.(5) The Tsubonosawa paragneiss included in the Hikami Granite in the South Kitakami terrane yield CHIME zircon ages of 350-2000Ma; rarely some well-rounded zircon grains show an Archean age as old as 3000Ma.This is the first record of Archean detrital zircons from the Japanese Islands.
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Kumon, F., Kiminami, K., Adachi, M., Bessho, T., Kawabata, K., Kusunoki, T., Nishimura, T., Okada, H., Okami, K., Suzuki, S. and Teraoka, Y.: "Modal compositions of representative sandstones from the Japanese Islands and their tectonic implications." Mem.
Kumon, F.、Kiminami, K.、Adachi, M.、Bessho, T.、Kawabata, K.、Kusunoki, T.、Nishimura, T.、Okada, H.、Okami, K.、Suzuki, S. 和
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通讯作者:
Adachi, M., Kojima, S., Wakita, K., Suzuki, K. and Tanaka, T.: "Transect of central Japan: from Hida to Shimanto." In: Adachi,M. and Suzuki,K.(Eds.) 29th IGC Field Trip Guide Book. Vol.1. 143-178 (1992)
Adachi, M.、Kojima, S.、Wakita, K.、Suzuki, K. 和 Tanaka, T.:“日本中部横断面:从飞騨到四万十”。
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Suzuki, K. and Adachi, M.: "The chemical Th-U-total Pb isochron ages of zircon and monazite from the Gray Granite of the Hida terrane, Japan." Jour.Earth Sci., Nagoya Univ.38. 11-37 (1991)
Suzuki, K. 和 Adachi, M.:“日本飞弹地体灰色花岗岩中锆石和独居石的化学 Th-U-总 Pb 等时线年龄。”
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Adachi, M. and Shibata, K.: "A 254-Ma-old metagabbro intruding the Arakigawa Formation from the circum-Hida terrane, central Japan." Jour.Earth Sci., Nagoya Univ.38. 39-48 (1991)
Adachi, M. 和 Shibata, K.:“一种距今 254 Ma 的变辉长岩,从日本中部飞騨地体周围侵入荒木川组。”
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Suzuki,K.and Adachi,M.and Tanaka,T.: "Middle Precambrian provenance of Jurassic sandstone in the Mino terrane,central Japan:ThーUーtotal Pb evidence from an electron microprobe monazite study" Sediment.Geol.75. 141-147 (1991)
Suzuki, K.、Adachi, M. 和 Tanaka, T.:“日本中部美浓地体侏罗纪砂岩的中前寒武纪物源:来自电子微探针独居石研究的 Th-U-总铅证据”Sediment.Geol.75。 141-147(1991)
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共 23 条
Search for hidden fracture zones from dense gravity survey and remote sensing
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批准号:14208044
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项目类别:Grant-in-Aid for Scientific Research (A)
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资助金额:$15.97万
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财政年份:2002
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负责人:ADACHI Mamoru
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依托单位:
Origin and depositional environment of Archean particle-bearing sandstones in the Japanese Islands
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批准号:09304048
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项目类别:Grant-in-Aid for Scientific Research (A)
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资助金额:$18.94万
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财政年份:1997
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负责人:ADACHI Mamoru
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依托单位:
Stratigraphic correlation of Cretaceous non-marine sedimentary basins of Southeast Korea and Southwest Japan
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批准号:06044254
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项目类别:Grant-in-Aid for Overseas Scientific Survey.
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资助金额:$0.0万
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财政年份:1994
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负责人:ADACHI Mamoru
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依托单位:
Sedimentary petrological comparison of Jurassic clastic rocks between the Mino terrane and the Chichibu terrane
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批准号:60480025
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项目类别:Grant-in-Aid for General Scientific Research (B)
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资助金额:$3.9万
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财政年份:1985
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负责人:ADACHI Mamoru
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依托单位:
海外基金