EARLY_CAMBRIAN

作品数：104被引量：363H指数：12
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相关作者：徐兆良欧强张立军凌洪飞更多>>
相关机构：中国科学院植物研究所中国地质大学（北京）河南理工大学南京大学更多>>
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Organic Matter Occurrence and Its Effects on Pore Structure and Methane Adsorption Capacity:A Case Study of the Niutitang Black Shale in Guizhou,China
《Journal of Earth Science》2025年第2期597-610,共14页Peng Xia Fang Hao Jinqiang Tian Yong Fu Yuliang Mou Chuan Guo Zhen Yang Ke Wang 
financially supported by the National Natural Science Fund of China(Nos.42002166,41690134,42162016);the Guizhou Provincial Fund Project(Nos.[2020]1Y161,ZK[2021]199,ZK[2022]106)。
The black shale samples from the Niutitang Formation in the Yangtze Block were sequentially treated using organic solvent extraction and wet chemical oxidation.The organic matter(OM)in the shales includes physically m...
关键词：organic matter pore structure black shales shale gas Early Cambrian petroleum geology 
Late Neoproterozoic to early Cambrian high-grade metamorphism from Mikir Hills(Assam-Meghalaya gneissic Complex,northeast India):Implications for eastern Gondwana assembly
《Geoscience Frontiers》2024年第5期256-282,共27页Rahul Nag H.Hrushikesh Nathan Cogné N.Prabhakar 
supported by the Prime Minister’s Research Fellows(PMRF)scheme from the Ministry of Education,New Delhi,Government of India(PMRF ID:1300753);Fieldwork and laboratory studies were financially supported by the Science and Engineering Research Board(SERB,Govt.of India)core research grant(CRG/2019/000812)to N.Prabhakar;Mineral and monazite analyses were performed using the SERB-funded EPMA National Facility at the Department of Earth Sciences,IIT Bombay(IRPHA grant no.IR/S4/ESF-16/2009);Prabhakar acknowledges the core research grant(file no.CRG/2019/000812)for the financial support given for laboratory analysis。
Mikir Hills region,which represents the eastern segment of the Assam-Meghalaya Gneissic Complex(AMGC)in northeast India,constitutes part of the Eastern Gondwana.The Mikir Hills preserves multiple metamorphic and magma...
关键词：GONDWANA Assam-Meghalaya Gneissic Complex Migmatisation NEOPROTEROZOIC Geochronology P-T-t history 
Thermal History of Cambrian Burgess Shale-Type Deposits:New Insights from the Early Cambrian Chengjiang and Qingjiang Fossils of South China
《Journal of Earth Science》2024年第4期1215-1223,共9页Yuheng Qiao Linhao Cui Guangyuan Xing Dongjing Fu Chao Chang Robert Gaines Xingliang Zhang 
supported by the Natural Science Foundation of China(Nos.41930319,41621003,and EAR-1554897);the 111 Project(No.D17013);the Natural Science Basic Research Plan of Shaanxi Province(No.2022JC-DW5-01).
Burgess Shale-type deposits provide a wealth of information on the early evolution of animals.Questions that are central to understanding the exceptional preservation of these biotas and the paleoenvironments they inh...
关键词：the Chengjiang Biota the Qingjiang Biota burial history Raman geothermometer thermal history Burgess Shale-type Lagerstätte 
Seawater barium and sulfide removal improved marine habitability for the Cambrian Explosion of early animals被引量：2
《National Science Review》2024年第8期130-139,共10页Wei Wei Lin-Hui Dong Shuhai Xiao Yi-Bo Lin Lingang Xu Guang-Yi Wei Wenzhong Wang Lan-Lan Tian Hai-Zhen Wei Fang Huang 
supported by the National Key Research and Development Program of China(2021YFA0718200);the Strategic Priority Research Program(B)of the Chinese Academy of Sciences(XDB41000000);the National Natural Science Foundation of China(41972072 and 42373056);S.X.is supported by the US National Science Foundation(EAR-2021207).
An increase in atmospheric pO_(2) has been proposed as a trigger for the Cambrian Explosion at∼539–514 Ma but the mechanistic linkage remains unclear.To gain insights into marine habitability for the Cambrian Explos...
关键词：early Cambrian animals radiation sulfate availability barite precipitation toxic material removal 
Nitrogen isotope stratigraphy of the Early Cambrian successions in the Tarim Basin:Spatial variability of nitrogen cycling and its implication for paleo-oceanic redox conditions
《Acta Geochimica》2024年第4期785-801,共17页Bi Zhu Xuefeng Li Lu Ge Yongquan Chen 
supported by the Fundamental Research Funds for the Central Universities(No.B200202009).
The Early Cambrian represents a critical time period characterized by extraordinary biological innovations and dynamic redox conditions in seawaters.Nitrogen isotopic signatures of ancient sediments have the potential...
关键词：Nitrogen isotopes Early Cambrian TARIM Black rock series 
Sedimentary Environment and Mineralization of the Black Shale Polymetallic Layer in the Early Cambrian,SW China:Constraints from in situ LA-ICP-MS Analysis of Pyrite
《Acta Geologica Sinica(English Edition)》2024年第2期416-429,共14页YANG Zhen FU Yong LI Chao CAI Xi GUO Chuan 
supported by the National Natural Science Foundation of China(Grant Nos.42272103,92062221,42063009,U1812402);the Guizhou Provincial Science and Technology Projects(Grant No.Qiankehejichu–ZK[2022]common 213);the Higher Education Scientific Research Projects of the Education Department of Guizhou Province(Grant No.Qianjiaoji[2022]157).
A polymetallic layer is usually developed at the bottom of the early Cambrian black shale in Guizhou Province.The mineral that makes up the polymetallic layer is related to the sedimentary facies.To analyze the differ...
关键词：sedimentary environment black shale polymetallic layer PYRITE early Cambrian 
Mottled dolomite in the lower Cambrian Longwangmiao formation in the Northern Sichuan Basin,South China
《Petroleum》2024年第1期19-29,共11页Xuefei Yang Hao Tang Junyi Zhang Yao Du Ruifeng Tang Shuang Pan Xiang Zhou Yan Xu 
supported by the PetroChina Innovation Foundation (No.2018D-5007-0105);National Natural Science Foundation of China (42102193);Open Experiment Funding of Southwest Petroleum University (2021KSZ02008 and 2021KSP02031).
At the end of Early Cambrian time,the Sichuan basin(South China)was located in a wide carbonate platform,with hundreds of meters of carbonate deposited.The Longwangmiao Formation carbonate in Sichuan basin is partiall...
关键词：Mottled dolomite DOLOMITIZATION Longwangmiao Formation Early Cambrian Northern Sichuan basin 
Geochemical Characterization of Organic Rich Black Rocks of the Niutitang Formation to Reconstruct the Paleoenvironmental Settings during Early Cambrian Period from Xiangxi Area,Western Hunan,China
《Journal of Earth Science》2023年第6期1827-1850,共24页Rizwan Sarwar Awan Chenglin Liu Ashar Khan Khawaja Hasnain Iltaf Qibiao Zang Yuping Wu Sajjad Ali Muhammad Amar Gul 
supported by the National Natural Science Foundation of China(Nos.41572099 and 41872127).
The Niutitang Formation in the South China Block might be a source of hydrocarbon as it contains an enormous quantity of organic matter.Black rock of the Early Cambrian Niutitang Formation is widely distributed in the...
关键词：anomaly paleo-ocean PALEOENVIRONMENT chemical index ALTERATION WEATHERING meta-somatism sediments 
Early Cambrian high pressure/low temperature metamorphism in the southeastern Tarim craton in response to circum-Gondwana cold subduction被引量：1
《Geoscience Frontiers》2023年第4期72-88,共17页Qian Liu Toshiaki Tsunogae Guochun Zhao Sam Uthup Kazuki Takahashi Jinlong Yao Yu Wu Yigui Han Kei Ikehata 
This work was financially supported by a National Natural Science Foundation of China Projects(41730213);a Grant-inAid for Scientific Research from Japan Society for the Promotion of Science(JSPS)to Prof.Toshiaki Tsunogae(18H01300)。
The circum-Gondwana subduction initiated by the early Cambrian has been suggested to reflect the establishment of the modern plate tectonics.The metamorphic rocks with low thermobaric(T/P)ratios indicative of cold sub...
关键词：Early Paleozoic High-pressure low temperature METAMORPHISM Cold subduction Tarim craton GONDWANA 
Salinity variation and hydrographic dynamics in the early Cambrian Nanhua Basin(South China)
《Science China Earth Sciences》2023年第6期1268-1278,共11页Meng CHENG Zihu ZHANG Chengsheng JIN Wei WEI Haiyang WANG Thomas J.ALGEO Chao LI 
supported by the Key R&D Project of Ministry of Science and Technology(Grant No.2022YFF0800100);the National Natural Science Foundation of China(Grant Nos.42072335,42002027,41825019,41821001,42130208);the Strategic Priority Research Program of Chinese Academy of Sciences(Grant No.XDB26000000).
Despite intensive study of the early Cambrian Nanhua Basin(ECNB)in South China,its degree of connectedness to the open ocean remains uncertain,impeding analysis of contemporaneous oceanic redox evolution and its role ...
关键词：B/Ga Boron GALLIUM Watermass restriction Cambrian Explosion CO-EVOLUTION 
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