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The Mesozoic-Cenozoic tectonic settings, paleogeography and evaporitic sedimentation of Tethyan blocks within China: Implications for potash formation
Liu, CL (Liu, Chenglin)1,2,4; Wang, LC (Wang, Licheng)1,2; Yan, MD (Yan, Maodu)3; Zhao, YJ (Zhao, Yanjun)1,2; Cao, YT (Cao, Yangtong)1,2; Fang, XM (Fang, Xiaomin)3; Shen, LJ (Shen, Lijian)1,2; Wu, CH (Wu, Chihua)1,2; Lv, FL (Lv, Fenglin)1,2,4; Ding, T (Ding, Ting)4
Source PublicationORE GEOLOGY REVIEWS
2018-11-01
Volume102Issue:0Pages:406-425
DOI10.1016/j.oregeorev.2018.09.002
Abstract

Potash deposits are common in the Mesozoic-Cenozoic Tethyan domain, which features the giant potash deposits in the Late Jurassic Central Asian Basin and the Late Cretaceous Khorat Basin of Thailand-Laos. Widespread evaporitic sequences from these intervals have been found in some marine and transitional basins within the Chinese continental blocks, such as the Yangtze, Simao and Tarim blocks, in which, only one small-scale potash deposit had been found in the Late Cretaceous Simao Basin. These evaporites are commonly characterized by depositional cycles that are more frequent than those of other potash basins around the world. It remains debated whether large or giant potash deposits could be formed in Chinese blocks of Tethyan domain, and if so, what mechanism was responsible for the potash formation. To address these issues, we comprehensively review the Meso-Cenozoic drift history and collision dynamics of these Chinese blocks and summarize the formation mechanism, depositional characteristics, and paleoclimate of the evaporite basins in these blocks. These blocks drifted from the Southern Hemisphere and collided and welded together in the beginning of the late Permian in the Northern Hemisphere. The collisions often commenced in the east and gradually spread to the west of these blocks, resulting in: (1) westward seawater retreat; (2) differential topographic uplift with high topography in the east and low topography in the west and (3) increasingly closed depositional environments in these basins. In addition, these collisions often exerted nearly N-S-oriented principal compressive stress, which resulted in nearly E-W-oriented extension. These forces induced a series of faulted-bounded subsidence belts with N-S-striking extensional sub-basins arranged in an E-W-oriented chain in these blocks. In this chain-like sub-basins system, as sea level rose and seawater flowed from west to east, the western sub-basins proximal to the open sea would have precipitated calcium carbonates and calcium sulfates, resulting in a high degree of concentration by the time the brines reached the distal end, i.e. eastern sub-basins. Ultimately, potash minerals were commonly deposited in the easternmost sub-basins. Based on the above model of potash formation, we predict that potash deposits may be formed in certain sub-basins in the eastern part of these basins in Chinese Tethyan blocks, which maybe lay a theoretical foundation for China's future exploration of potash deposits.

Subject Area地质学
WOS IDWOS:000453493100020
Language英语
Indexed BySCIE
KeywordSea-surface Temperatures Arc/back-arc Assemblages North Qilian Mountains Lanping-simao Basin South China Sichuan Basin Nw China Paleomagnetic Constraints Isotopic Characteristics Mengyejing Formation
WOS Research AreaGeology ; Mineralogy ; Mining & Mineral Processing
WOS SubjectGeology ; Mineralogy ; Mining & Mineral Processing
Cooperation Status国内
ISSN0169-1368
Department大陆碰撞与高原隆升重点实验室
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itpcas.ac.cn/handle/131C11/8507
Collection图书馆
Corresponding AuthorLiu, CL (Liu, Chenglin)
Affiliation1.Chinese Acad Geol Sci, MNR Key Lab Metallogeny & Mineral Assessment, Inst Mineral Resources, Beijing 100037, Peoples R China;
2.Chinese Acad Sci, Inst Tibetan Plateau Res, CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China;
3.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Continental Collis & Plateau Uplift, Beijing 100101, Peoples R China;
4.China Univ Geosci, Sch Earth Sci & Resources, Beijing 100083, Peoples R China.
Recommended Citation
GB/T 7714
Liu, CL ,Wang, LC ,Yan, MD ,et al. The Mesozoic-Cenozoic tectonic settings, paleogeography and evaporitic sedimentation of Tethyan blocks within China: Implications for potash formation[J]. ORE GEOLOGY REVIEWS,2018,102(0):406-425.
APA Liu, CL .,Wang, LC .,Yan, MD .,Zhao, YJ .,Cao, YT .,...&Ding, T .(2018).The Mesozoic-Cenozoic tectonic settings, paleogeography and evaporitic sedimentation of Tethyan blocks within China: Implications for potash formation.ORE GEOLOGY REVIEWS,102(0),406-425.
MLA Liu, CL ,et al."The Mesozoic-Cenozoic tectonic settings, paleogeography and evaporitic sedimentation of Tethyan blocks within China: Implications for potash formation".ORE GEOLOGY REVIEWS 102.0(2018):406-425.
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