Geothermal constraints on Emeishan mantle plume magmatism: paleotemperature reconstruction of the Sichuan Basin, SW China

doi:10.1007/s00531-016-1404-2

	Geothermal constraints on Emeishan mantle plume magmatism: paleotemperature reconstruction of the Sichuan Basin, SW China
	Zhu, Chuanqing 1,2; Hu, Shengbiao 3; Qiu, Nansheng 1,2; Jiang, Qiang 2; Rao, Song 4; Liu, Shuai 2
刊名	INTERNATIONAL JOURNAL OF EARTH SCIENCES
	2018
卷号	107 期号:1 页码:71-88
关键词	Vitrinite Reflectance Apatite Fission Track Paleotemperature Gradient Doming And Erosion Emeishan Mantle Plume Sichuan Basin
ISSN号	1437-3254
DOI	10.1007/s00531-016-1404-2
文献子类	Article
英文摘要	The Middle-Late Permian Emeishan Large Igneous Province (ELIP) in southwestern China represents a classic example of a mantle plume origin. To constrain the thermal regime of the ELIP and contemporaneous magmatic activity in the northeastern Sichuan Basin, maximum paleotemperature profiles of deep boreholes were reconstructed using vitrinite reflectance (Ro) and apatite fission track data. Two heating patterns were identified: (1) heating of the overlying lithosphere by magma storage regions and/or magmatic activity related to the mantle plume, which resulted in a relatively strong geothermal field and (2) direct heating of country rock by stock or basalt. Borehole Ro data and reconstructed maximum paleotemperature profiles near the ELIP exhibit abrupt tectonothermal unconformities between the Middle and Late Permian. The profiles in the lower subsections (i.e., pre-Middle Permian) exhibited significantly higher gradients than those in the upper subsections. Distal to the basalt province, high paleo-geotemperatures (hereafter, paleotemperatures) were inferred, despite deformation of the paleogeothermal curve due to deep faults and igneous rocks within the boreholes. In contrast, Ro profiles from boreholes without igneous rocks (i.e., Late Permian) contained no break at the unconformity. Paleotemperature gradients of the upper and the lower subsections and erosion at the Middle/Late Permian unconformity revealed variations in the thermal regime. The inferred spatial distribution of the paleothermal regime and the erosion magnitudes record the magmatic and tectonic-thermal response to the Emeishan mantle plume.
WOS关键词	LARGE IGNEOUS PROVINCE ; PERMIAN-TRIASSIC BOUNDARY ; ZIRCON U-PB ; FLOOD BASALTS ; THERMAL HISTORY ; VITRINITE REFLECTANCE ; SOUTHWESTERN CHINA ; SEDIMENTARY BASINS ; FORELAND BASIN ; CRUSTAL GROWTH
WOS研究方向	Geology
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000419460800006
资助机构	National Key Basic Research Development Plan of China ("973" Projects)(2012CB214703) ; National Key Basic Research Development Plan of China ("973" Projects)(2012CB214703) ; National Science Foundation of China(41102152) ; National Science Foundation of China(41102152) ; Science Foundation of China University of Petroleum, Beijing(YJRC2013-002) ; Science Foundation of China University of Petroleum, Beijing(YJRC2013-002) ; National Key Basic Research Development Plan of China ("973" Projects)(2012CB214703) ; National Key Basic Research Development Plan of China ("973" Projects)(2012CB214703) ; National Science Foundation of China(41102152) ; National Science Foundation of China(41102152) ; Science Foundation of China University of Petroleum, Beijing(YJRC2013-002) ; Science Foundation of China University of Petroleum, Beijing(YJRC2013-002) ; National Key Basic Research Development Plan of China ("973" Projects)(2012CB214703) ; National Key Basic Research Development Plan of China ("973" Projects)(2012CB214703) ; National Science Foundation of China(41102152) ; National Science Foundation of China(41102152) ; Science Foundation of China University of Petroleum, Beijing(YJRC2013-002) ; Science Foundation of China University of Petroleum, Beijing(YJRC2013-002) ; National Key Basic Research Development Plan of China ("973" Projects)(2012CB214703) ; National Key Basic Research Development Plan of China ("973" Projects)(2012CB214703) ; National Science Foundation of China(41102152) ; National Science Foundation of China(41102152) ; Science Foundation of China University of Petroleum, Beijing(YJRC2013-002) ; Science Foundation of China University of Petroleum, Beijing(YJRC2013-002)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/82456]
专题	中国科学院地质与地球物理研究所
通讯作者	Zhu, Chuanqing
作者单位	1.China Univ Petr, State Key Lab Petr Resources & Prospecting, Beijing 102249, Peoples R China 2.China Univ Petr, Coll Geosci, Beijing 102249, Peoples R China 3.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 4.Yangtze Univ, Coll Geosci, Jingzhou 434023, Peoples R China
推荐引用方式 GB/T 7714	Zhu, Chuanqing,Hu, Shengbiao,Qiu, Nansheng,et al. Geothermal constraints on Emeishan mantle plume magmatism: paleotemperature reconstruction of the Sichuan Basin, SW China[J]. INTERNATIONAL JOURNAL OF EARTH SCIENCES,2018,107(1):71-88.
APA	Zhu, Chuanqing,Hu, Shengbiao,Qiu, Nansheng,Jiang, Qiang,Rao, Song,&Liu, Shuai.(2018).Geothermal constraints on Emeishan mantle plume magmatism: paleotemperature reconstruction of the Sichuan Basin, SW China.INTERNATIONAL JOURNAL OF EARTH SCIENCES,107(1),71-88.
MLA	Zhu, Chuanqing,et al."Geothermal constraints on Emeishan mantle plume magmatism: paleotemperature reconstruction of the Sichuan Basin, SW China".INTERNATIONAL JOURNAL OF EARTH SCIENCES 107.1(2018):71-88.