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  4. 岩石圈演化国家重点实验室
Architecture and P-T-deformation-time evolution of the Chinese SW-Tianshan HP/UHP complex: Implications for subduction dynamics

文献类型：期刊论文

作者Tan, Zhou2,3; Agard, Philippe3,5; Monie, Patrick6; Gao, Jun1,4; John, Timm7; Bayet, Lea7; Jiang, Tuo8; Wang, Xin-Shui1; Hong, Tao1; Wan, Bo2,4
刊名EARTH-SCIENCE REVIEWS
出版日期2019-10-01
卷号197页码:38
关键词UHP/HP metamorphism P-T-deformation-time histories Ar-40-Ar-39 in situ laser ablation analyse Juxtaposition Cold subduction regime Subduction dynamics Chinese SW-Tianshan
ISSN号0012-8252
DOI10.1016/j.earscirev.2019.102894
英文摘要We present the first comprehensive P-T-deformation-time and kinematic constraints for HP/UHP eclogite, blueschist and greenschist-facies metavolcano-sedimentary rocks cropping out in the Chinese SW-Tianshan metamorphic complex (within the similar to 30 km wide N-S Akeyazi-Kebuerte area). We reappraise this HP/UHP "melange", which should be divided into three main tectonic units, from north to south, according to their discrepant lithologies and P-T-time-deformation histories. These three units crop out in a tectonic window beneath greenschist-facies metavolcanics. P-T estimates point to 1) UHP-LT conditions around 2.6-2.9 GPa at similar to 520 degrees C for the metavolcano-sedimentary rocks of the northern HP/UHP unit, 2) HP-LT conditions of 1.8-2.1 GPa and similar to 500 degrees C for the central blueschist horizon and 3) lower-blueschist facies conditions of 1.0-1.5 GPa at similar to 485 degrees C for the southern ultramafic-mafic unit. In situ laser probe Ar-Ar age constraints (with textural control) on recrystallized phengites from the HP/UHP unit cluster within 315 to 325 Ma. Phengite ages from the central blueschist horizon are 10-15 Ma older, at similar to 325-345 Ma. Laser-ICP-MS U-Pb dating on zircon from the south ultramafic-mafic unit yield ages around similar to 360 Ma for metamorphic overgrowths. In contrast, step-heating Ar-Ar phengite age constraints for the greenschist-facies metavolcano-sediments fall within 280-300 Ma. These new field and P-T-time data disclose an episodic exhumation of three main tectonic slices, respectively from similar to 85 km, similar to 65 km and similar to 45 km depths, and a progressive change of metamorphic gradients from similar to 12 to similar to 6-7 degrees C/km, which could reflect a cooling of the subduction system with time. Final juxtaposition at 20 km was probably achieved around 300 Ma, prior to collision.
WOS关键词TRACE-ELEMENT MOBILIZATION ; PRESSURE METAMORPHIC ROCKS ; ASIAN OROGENIC BELT ; WESTERN TIANSHAN ; SOUTHWESTERN TIANSHAN ; SOUTH TIANSHAN ; NW-CHINA ; TECTONIC IMPLICATIONS ; PHASE-EQUILIBRIA ; AR-40/AR-39 AGES
资助项目National Key R&D Program of China[2018YFC0606004] ; China Geological Survey[DD20190370] ; National Natural Science Foundation of China[41390445] ; National Natural Science Foundation of China[41025008] ; National Natural Science Foundation of China[41802093] ; International Training Network ZIP (Marie Curie Actions, Zooming In-between Plates, REA grant )[604713] ; Chinese Academy of Sciences of China[GJHZ1776] ; Chinese Academy of Sciences of China[2013047]
WOS研究方向Geology
语种英语
WOS记录号WOS:000497253500003
出版者ELSEVIER
资助机构National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; China Geological Survey ; China Geological Survey ; China Geological Survey ; China Geological Survey ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; International Training Network ZIP (Marie Curie Actions, Zooming In-between Plates, REA grant ) ; International Training Network ZIP (Marie Curie Actions, Zooming In-between Plates, REA grant ) ; International Training Network ZIP (Marie Curie Actions, Zooming In-between Plates, REA grant ) ; International Training Network ZIP (Marie Curie Actions, Zooming In-between Plates, REA grant ) ; Chinese Academy of Sciences of China ; Chinese Academy of Sciences of China ; Chinese Academy of Sciences of China ; Chinese Academy of Sciences of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; China Geological Survey ; China Geological Survey ; China Geological Survey ; China Geological Survey ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; International Training Network ZIP (Marie Curie Actions, Zooming In-between Plates, REA grant ) ; International Training Network ZIP (Marie Curie Actions, Zooming In-between Plates, REA grant ) ; International Training Network ZIP (Marie Curie Actions, Zooming In-between Plates, REA grant ) ; International Training Network ZIP (Marie Curie Actions, Zooming In-between Plates, REA grant ) ; Chinese Academy of Sciences of China ; Chinese Academy of Sciences of China ; Chinese Academy of Sciences of China ; Chinese Academy of Sciences of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; China Geological Survey ; China Geological Survey ; China Geological Survey ; China Geological Survey ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; International Training Network ZIP (Marie Curie Actions, Zooming In-between Plates, REA grant ) ; International Training Network ZIP (Marie Curie Actions, Zooming In-between Plates, REA grant ) ; International Training Network ZIP (Marie Curie Actions, Zooming In-between Plates, REA grant ) ; International Training Network ZIP (Marie Curie Actions, Zooming In-between Plates, REA grant ) ; Chinese Academy of Sciences of China ; Chinese Academy of Sciences of China ; Chinese Academy of Sciences of China ; Chinese Academy of Sciences of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; China Geological Survey ; China Geological Survey ; China Geological Survey ; China Geological Survey ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; International Training Network ZIP (Marie Curie Actions, Zooming In-between Plates, REA grant ) ; International Training Network ZIP (Marie Curie Actions, Zooming In-between Plates, REA grant ) ; International Training Network ZIP (Marie Curie Actions, Zooming In-between Plates, REA grant ) ; International Training Network ZIP (Marie Curie Actions, Zooming In-between Plates, REA grant ) ; Chinese Academy of Sciences of China ; Chinese Academy of Sciences of China ; Chinese Academy of Sciences of China ; Chinese Academy of Sciences of China
源URL[http://ir.iggcas.ac.cn/handle/132A11/95799]  
专题地质与地球物理研究所_岩石圈演化国家重点实验室
地质与地球物理研究所_中国科学院矿产资源研究重点实验室
通讯作者Tan, Zhou; Agard, Philippe
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
3.Sorbonne Univ, CNRS, UMR 7193, Inst Sci Terre Paris,ISTeP,INSU, F-75005 Paris, France
4.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
5.Inst Univ France, F-75005 Paris, France
6.Univ Montpellier 2, Geoscinces Montpellier, CNRS, UMR5243, Pl E Bataillon, F-34095 Montpellier 05, France
7.Free Univ Berlin, Inst Geol Wissensch, Malteserstr 74-100, D-12449 Berlin, Germany
8.China Geol Survey, Wuhan Ctr, Lab Isotope Geochem, Wuhan 430205, Hubei, Peoples R China
推荐引用方式
GB/T 7714		 Tan, Zhou,Agard, Philippe,Monie, Patrick,et al. Architecture and P-T-deformation-time evolution of the Chinese SW-Tianshan HP/UHP complex: Implications for subduction dynamics[J]. EARTH-SCIENCE REVIEWS,2019,197:38.
APA Tan, Zhou.,Agard, Philippe.,Monie, Patrick.,Gao, Jun.,John, Timm.,...&Caron, Benoit.(2019).Architecture and P-T-deformation-time evolution of the Chinese SW-Tianshan HP/UHP complex: Implications for subduction dynamics.EARTH-SCIENCE REVIEWS,197,38.
MLA Tan, Zhou,et al."Architecture and P-T-deformation-time evolution of the Chinese SW-Tianshan HP/UHP complex: Implications for subduction dynamics".EARTH-SCIENCE REVIEWS 197(2019):38.

入库方式： OAI收割

来源：地质与地球物理研究所

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