Newly-discovered ultra-high temperature granulites from the East Hebei terrane,North China Craton  

华北克拉通冀东地体超高温麻粒岩的新发现

作　　者：Ting Liu Chunjing Wei Tim E.Johnson Elena Sizova 刘婷;魏春景;Tim E.Johnson;Elena Sizova(College of Earth Sciences,Chengdu University of Technology,Chengdu 610059,China;School of Earth and Space Sciences,Peking University,Beijing 100871,China;School of Earth and Planetary Sciences,the Institute for Geoscience Research,Curtin University,Perth,WA 6845,Australia;Institute of Earth Sciences,University of Graz,Graz 8010,Austria)

机构地区：[1]College of Earth Sciences,Chengdu University of Technology,Chengdu 610059,China [2]School of Earth and Space Sciences,Peking University,Beijing 100871,China [3]School of Earth and Planetary Sciences,the Institute for Geoscience Research,Curtin University,Perth,WA 6845,Australia [4]Institute of Earth Sciences,University of Graz,Graz 8010,Austria

出　　处：《Science Bulletin》2022年第7期670-673,共4页科学通报（英文版）

基　　金：supported by the National Natural Science Foundation of China (42102062, 42030304, and 41890834);funding from the State Key Laboratory for Geological Processes and Mineral Resources, China University of Geosciences, Wuhan (Open Fund GPMR201903);from the Australian Government through an Australian Research Council Discovery Project (DP200101104)

摘　　要：Archean crustal terranes are commonly featured with the dome–and–keel structures,in which supracrustal rocks occur as belts(greenstones)between,and rafts within,dome-like bodies of tonalite–trondhjemite–granodiorite(TTG).Supracrustal rafts within TTG gneisses generally record metamorphic grades ranging from amphibolite-to ultra-high temperature(UHT)granulitefacies of low-to moderate-pressure conditions[1].Notably,granulite-facies rafts commonly show counterclockwise P±T paths involving a significant increase in pressure at high temperatures[2,3].However,the tectonothermal drivers behind such metamorphism are still debated.

关 键 词：CRUSTAL 超高温麻粒岩 FACIES 

分 类 号：P588.3[天文地球—岩石学]