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Layered ultramafic complexes of the Barberton Greenstone Belt - age constraints and tectonic implications

文献类型：期刊论文

作者Hofmann, A.3; Anhaeusser, C. R.2; Li, X-H1
刊名SOUTH AFRICAN JOURNAL OF GEOLOGY
出版日期2021-03-01
卷号124期号:1页码:7-16
ISSN号1012-0750
DOI10.25131/sajg.124.0002
英文摘要Layered ultramafic-matic complexes are a common component of the stratigraphically uppermost part of the Onverwacht Group of the Barberton Greenstone Belt. Associated with the Mendon Formation in the south and the Weltevreden Formation in the north, they represent an assemblage of thick differentiated flows and shallow synvolcanic intrusions ranging in composition from dunite to gabbro. U-Pb zircon dating of gabbro from the Sawmill and the Mundt's Concession ultramafic complexes from the northern part of the Barberton Greenstone Belt yielded ages of 3 258 +/- 8 Ma and 3 244 +/- 11 Ma, respectively. The ultramafic complexes are thus regarded to have been emplaced during a magmatic flare-up in the final stage of Weltevreden Formation volcanism, post-dating ultramafic magmatism in the southern part of the belt by several millions of years and thus suggesting diachronous evolution of the Onverwacht Group in the Barberton Greenstone Belt.
WOS关键词SOUTHERN WEST GREENLAND ; WELTEVREDEN FORMATION ; ISOTOPIC COMPOSITIONS ; TRACE-ELEMENT ; EARLY EARTH ; AFRICA ; KOMATIITES ; ROCKS ; PB ; ZIRCON
资助项目National Research Foundation of South Africa ; DST-NRF Centre of Excellence for Integrated Mineral and Energy Resource Analysis (CIMERA)
WOS研究方向Geology
语种英语
WOS记录号WOS:000641433400003
出版者GEOLOGICAL SOC SOUTH AFRICA
资助机构National Research Foundation of South Africa ; National Research Foundation of South Africa ; DST-NRF Centre of Excellence for Integrated Mineral and Energy Resource Analysis (CIMERA) ; DST-NRF Centre of Excellence for Integrated Mineral and Energy Resource Analysis (CIMERA) ; National Research Foundation of South Africa ; National Research Foundation of South Africa ; DST-NRF Centre of Excellence for Integrated Mineral and Energy Resource Analysis (CIMERA) ; DST-NRF Centre of Excellence for Integrated Mineral and Energy Resource Analysis (CIMERA) ; National Research Foundation of South Africa ; National Research Foundation of South Africa ; DST-NRF Centre of Excellence for Integrated Mineral and Energy Resource Analysis (CIMERA) ; DST-NRF Centre of Excellence for Integrated Mineral and Energy Resource Analysis (CIMERA) ; National Research Foundation of South Africa ; National Research Foundation of South Africa ; DST-NRF Centre of Excellence for Integrated Mineral and Energy Resource Analysis (CIMERA) ; DST-NRF Centre of Excellence for Integrated Mineral and Energy Resource Analysis (CIMERA)
源URL[http://ir.iggcas.ac.cn/handle/132A11/101180]  
专题地质与地球物理研究所_岩石圈演化国家重点实验室
通讯作者Hofmann, A.
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
2.Univ Witwatersrand, Sch Geosci, ZA-2050 Johannesburg, South Africa
3.Univ Johannesburg, Dept Geol, POB 524, ZA-2006 Johannesburg, South Africa
推荐引用方式
GB/T 7714		 Hofmann, A.,Anhaeusser, C. R.,Li, X-H. Layered ultramafic complexes of the Barberton Greenstone Belt - age constraints and tectonic implications[J]. SOUTH AFRICAN JOURNAL OF GEOLOGY,2021,124(1):7-16.
APA Hofmann, A.,Anhaeusser, C. R.,&Li, X-H.(2021).Layered ultramafic complexes of the Barberton Greenstone Belt - age constraints and tectonic implications.SOUTH AFRICAN JOURNAL OF GEOLOGY,124(1),7-16.
MLA Hofmann, A.,et al."Layered ultramafic complexes of the Barberton Greenstone Belt - age constraints and tectonic implications".SOUTH AFRICAN JOURNAL OF GEOLOGY 124.1(2021):7-16.

入库方式： OAI收割

来源：地质与地球物理研究所

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