Environmental change and process of mass extinction of Paleozoic oranisms in Yangtze Block during Late Paleozoic to Early Mesozoic time

扬子地块晚古生代至早中生代环境变化与古生代生物大灭绝过程

基本信息

  • 批准号:
    03041069
  • 负责人:
  • 金额:
    $ 1.92万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for international Scientific Research
  • 财政年份:
    1991
  • 资助国家:
    日本
  • 起止时间:
    1991 至 无数据
  • 项目状态:
    已结题

项目摘要

Environmental change and process of mass extinction of Paleozoic organisms in Yangtze Block during Late Paleozoec to Early Mesozoec timeThe main purpose of this project was to study the environmental changes and the processes of mass extinction of Paleozoic or, anisms at the end Permian. Emphasis was placed to clarify the vertical distributions of such mega- and microfossils as corals, radiolarians, conodonts and fusulinids through continuous straligraphc successions of the Permian to Triassic in the Yangize Block. In addition, we aimed to reconstruct the sedimentary environments across the Permian-Triassic boundary.The studied areas were west Guizhou and central to west Guangxi both on the Yangize Block. Following twelve sections (1-7 in Guizhou and 8-12 in Guangxi) were studied.1. Chouzushan (17km north of Anshun), G-H-I, 20m ; 2. Maoshachin (34km south of Ziyun), D-G-I, 400m ; 3. Saiwa (18km south of Ziyun), P3, 1100m ; 4. Taizucho (Guiyang), E-G-H-I, 240m ; 5. Duraying (Guiyang), C … More -E-G-I-J, 40m+ ; 6. Dwansha (85km south of Guiyang), D-G-I-K, 220m ; 7. Nashui (40km southwest of Luodian), D3-T1 ; 8. Tungtienyien (20km south of Liuzhou), A-B, 40m+ ; 9. Niumuping (10km northeast of Liuzhou), F-H, 200m+ ; 10. Linalang (20km east-northeast of Pingguo), D3-T1, 450m+ ; 11. Tsiping (20km northwest of Pingguo), A-C-F-K, 70m+ ; 12. Guofualungchiu (20km west of Pingguo), P-T1, 50m+(A) Chibsia Formation [P21] ; (B) Kufebg Fm. : (C) Maokou Fm. [P2, 2] ; (D) Wujiaping Fm. : (E) Lungtan Fm. : (F) Hoshan Fm. [P31] ; (G) Changxing Fm. : (H) Talung Fm. [P32] ; (I) Tayeh Fm. : (J) Yehlang Fm. : (K) Luolou Fm. [T11]In each section, litho- and biostratigraphic studies and systematic sampling of fossils and sedimentary rocks were carried out.1. LithofaciesThe Upper Permian is divided into three lithofacies ; carbonate, clastic and reworked-carbonate, and clastic and siliceous facies, which are equivalent to platform, slope and basin sediments, respectively. The uppermost Permian is conformably overlain by the Lower Triassic clastic rocks.2. Sedimentary faciesThe Lungtan Formation reveals coarsening-upward sequences of a deltaic origin as well as occasional occurrences of tidal flat deposits. The calcareous turbidite facies locally shows cyclic sedimentation demonstrated stacked thinning-upward sequences. Clastic facies of the Lower Triassic is interpreted as the shallow marine deposits as revealed by common presence of hummocky cross-stratification.3. BiofaciesRugose corals are common in the Middle Permian, but are sparse in the Upper Permian (Wujiaping and Changxin, Formations). Corals are facies-dependent and are variable in taxonomic composition from area to area. The uppermost Permian limestones occasionally contain abundant sponges and show bird's-eye structure. Radiolarians are abundant, especially in the Talung Formation of siliceous rocks. Less
在古生代晚期到早期的中元到早期的阳性块中古生代生物的质量扩展的环境变化和过程是该项目的主要目的是研究环境变化和古生代或质量在二叠纪的质量扩展的过程。重点是通过二叠纪的连续散曲率替代珊瑚,radialian骨,牙形特和熔融剂等珊瑚,radialian,肌肌肌动物和熔融剂等这种巨型化石和微化石的垂直分布的重点。此外,我们旨在重建跨二叠纪三叠纪边界上的沉积环境。研究二的地区是西吉州(Guizhou)和西广西(West Guangxi)的中心。在十二个部分(吉村为1-7,在广西地区为8-12)进行了研究。1。 Chouzushan(Anshun以北17公里),G-H-I,20m; 2。Maoshachin(Ziyun以南34公里),D-G-I,400m; 3。Saiwa(Ziyun以南18公里),P3,1100m; 4。Taizucho(Guiyang),E-G-H-I,240m; 5。 6。Dwansha(Guiyang以南85公里),D-G-I-K,220m; 7。Nashui(Luodian西南40公里),D3-T1; 8。Tungtienyien(Liuzhou以南20公里),A-B,40m+; 9。 10。Linalang(pingguo东北20公里),D3-T1,450m+; 11。 12。Guofalungchiu(pingguo以西20公里),P-T1,50m+(a)Chibsia组[P21]; (b)Kufebg FM。 :(c)Maokou FM。 [P2,2]; (d)Wujiaping Fm。 :(e)Lungtan FM。 :(f)Hoshan FM。 [p31]; (g)Changxing FM。 :(H)Talung FM。 [p32]; (i)Tayeh FM。 :(J)Yehlang FM。 :(k)Luolou FM。 [T11]在每个部分中,进行了岩性和生物术研究以及化石和沉积岩的系统采样。1。岩性上二叠纪被分为三个岩相;碳酸盐,经典和经典的碳酸盐以及经典和硅质的设施,分别等同于平台,坡度和盆地沉积物。最高的二叠纪被下层三叠纪经典岩石所覆盖。2。沉积物面部的隆坦形成揭示了三角洲起源和偶尔出现潮汐扁平沉积物的较粗糙的序列。钙质浊度面部局部显示循环沉积物表现出堆叠的稀疏序列。下三叠纪的碎屑设施被解释为浅层杂交跨分层的浅层海洋沉积物3。生物相质珊瑚在中二叠纪中很常见,但在上二叠纪(Wujiaping and changxin,地层)中稀疏。珊瑚是依赖相的相,并且在区域到区域的分类学组成中都是可变的。最高的二叠纪石灰岩偶尔包含丰富的海绵,并显示鸟类的眼睛结构。放射性人数丰富,尤其是在硅石岩石的形成中。较少的

项目成果

期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)

暂无数据

数据更新时间:2024-06-01

YAO Akira的其他基金

Comparison of the Panthalassa and the Paleo-Tethys based on radiolarian analysis
基于放射虫分析的Panthalassa和古特提斯洋的比较
  • 批准号:
    11640466
    11640466
  • 财政年份:
    1999
  • 资助金额:
    $ 1.92万
    $ 1.92万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
    Grant-in-Aid for Scientific Research (C)
Oceanic change of Northwest Paleo-Pacific during Jurassic based on radiolarian research
基于放射虫研究的西北古太平洋侏罗纪海洋变化
  • 批准号:
    09640559
    09640559
  • 财政年份:
    1997
  • 资助金额:
    $ 1.92万
    $ 1.92万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
    Grant-in-Aid for Scientific Research (C)
Change of marine environment based on analysis of Early-middle Triassic radiolarians
基于早中三叠世放射虫分析的海洋环境变化
  • 批准号:
    07640625
    07640625
  • 财政年份:
    1995
  • 资助金额:
    $ 1.92万
    $ 1.92万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
    Grant-in-Aid for Scientific Research (C)
Research on geohistorical changes of Phanerozoic oceanic environments by means of radiolarians
利用放射虫研究显生宙海洋环境的地史变化
  • 批准号:
    04304009
    04304009
  • 财政年份:
    1992
  • 资助金额:
    $ 1.92万
    $ 1.92万
  • 项目类别:
    Grant-in-Aid for Co-operative Research (A)
    Grant-in-Aid for Co-operative Research (A)
Faunal analysis of Early to Middle Jurassic radiolarians
早侏罗世至中侏罗世放射虫的区系分析
  • 批准号:
    02454029
    02454029
  • 财政年份:
    1990
  • 资助金额:
    $ 1.92万
    $ 1.92万
  • 项目类别:
    Grant-in-Aid for General Scientific Research (B)
    Grant-in-Aid for General Scientific Research (B)

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A Non-amniote Perspective on the Recovery from the End-Permian Extinction at High Latitudes: Paleobiology of Early Triassic Temnospondyls from Antarctica
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  • 批准号:
    1947094
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  • 财政年份:
    2020
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Nutrient Cycles during the Permian-Triassic transition (NUC)
二叠纪-三叠纪过渡期间的养分循环(NUC)
  • 批准号:
    424859130
    424859130
  • 财政年份:
    2019
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Patterns in post-extinction recovery in the aftermath of the Permian-Triassic biotic crisis
二叠纪-三叠纪生物危机后的灭绝后恢复模式
  • 批准号:
    RGPIN-2015-05635
    RGPIN-2015-05635
  • 财政年份:
    2019
  • 资助金额:
    $ 1.92万
    $ 1.92万
  • 项目类别:
    Discovery Grants Program - Individual
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Patterns in post-extinction recovery in the aftermath of the Permian-Triassic biotic crisis
二叠纪-三叠纪生物危机后的灭绝后恢复模式
  • 批准号:
    RGPIN-2015-05635
    RGPIN-2015-05635
  • 财政年份:
    2018
  • 资助金额:
    $ 1.92万
    $ 1.92万
  • 项目类别:
    Discovery Grants Program - Individual
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Collaborative Research: Terrestrial Late Permian to Early Triassic Earth Systems in NE Pangea: Insights into the Tempo, Effects, and Causes of the End-Permian Mass Extinction
合作研究:盘古大陆东北部的陆地晚二叠世至早三叠世地球系统:深入了解二叠纪末大规模灭绝的节奏、影响和原因
  • 批准号:
    1714749
    1714749
  • 财政年份:
    2017
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  • 项目类别:
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