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Origin of Phosphate-bearing Carbonate Concretions in the Upper Triassic Lacustrine Black Shales of the Southern Ordos Basin,China
Authors:ZHANG Long  LIU Chiyang  ZHANG Dongdong  QU Shaodong  MA Huanhuan  JIANG Chong  LEI Kaiyu
Affiliation:Shaanxi Key Laboratory of Petroleum Accumulation Geology,Xi'an Shiyou University,Xi'an 710065,China;Shandong Key Laboratory of Depositional Mineralization & Sedimentary Mineral,Shandong University of Science and Technology,Qingdao 266590,China;School of Earth Sciences and Engineering,Xi'an Shiyou University,Xi'an 710065,China;State Key Laboratory of Continental Dynamics,Northwest University,Xi'an 710069,China;Shaanxi Provincial Land Engineering Construction Group,Xi'an 710075,China;School of Earth Sciences and Engineering,Xi'an Shiyou University,Xi'an 710065,China;Oil and Gas Exploration Company of Shaanxi Yanchang Petroleum (Group) Co.LTD,Yan'an,Shaanxi 716000,China
Abstract:Carbonate concretions are conspicuous in organic-rich shales and are generally related to decomposition of organic matter. The black shales from the Chang 7 Mem...
Keywords:carbonate concretion   phosphate mineral   upwelling   paleoenvironment   lacustrine source rock   Ordos Basin
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