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- Qun YANG
- Nanjing Institute of Geology and Palaeontology, Academia Sinica
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- Atsushi MATSUOKA
- Department of Geology, Faculty of Science, Niigata University
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- Yu-jing WANG
- Nanjing Institute of Geology and Palaeontology, Academia Sinica
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A radiolarian assemblage was extracted from a siliceous mudstone sample of Triassic shallow marine sequences exposed south of Quxia in the Zhongbei area, Lhaze County, southern Tibet. The radiolarian assemblage discovered in this study is characterized by having abundant spumellarians and few nassellarians. It includes Cryptostephanidium cornigeum Dumitrica, Hindeosphaera spinulosa (Nakaseko and Nishimura), Muelleritortis cochleata (Nakaseko and Nishimura), Pseudostylosphaera goestlingensis (Kozur and Mostler), Pseudostylosphaera hellenica (De Wever), Pseudostylosphaera japonica (Nakaseko and Nishimura), Pseudostylosphaera nazarovi (Kozur and Mostler), Triassocampe sp. cf. T. deweveri (Nakaseko and Nishimura) and Tritortis (?) sp. The faunal association is comparable to that of the TR 4A zone in the Mino Terrane, central Japan, proposed by Sugiyama (1997). The age of the assemblage is assignable to Ladinian (Middle Triassic). Comparison with radiolarian biostratigraphic works in other areas is also concordant with this age assignment.
収録刊行物
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- 新潟大学理学部研究報告. E類, (地質学鉱物学)
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新潟大学理学部研究報告. E類, (地質学鉱物学) (15), 59-65, 2000-03
新潟大学理学部
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詳細情報 詳細情報について
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- CRID
- 1573668926769706624
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- NII論文ID
- 110004461999
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- NII書誌ID
- AA11436808
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- ISSN
- 13491237
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- 本文言語コード
- en
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- データソース種別
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- CiNii Articles