Comparisons of the Paleo-Mesoproterozoic large igneous provinces and black shales in the North China and North Australian cratons
作者机构：Institute of GeomechanicsChinese Academy of Geological SciencesMNR Key Laboratory of Paleomagnetism and Tectonic ReconstructionBeijing 100081China Department of Earth SciencesCarleton UniversityOttawaOntario K1S 5B6Canada Faculty of Geology and GeographyTomsk State UniversityTomsk 634050Russia Northern Territory Geological SurveyNorthern Territory Department of IndustryTourism and TradeDarwinNT 0800Australia
出 版 物：《Fundamental Research》 (自然科学基础研究（英文版）)
年 卷 期：2022年第2卷第1期
页 面：84-100页
学科分类：0709[理学-地质学] 070901[理学-矿物学、岩石学、矿床学] 07[理学]
基 金：the National Natural Science Foundation of China(Grants No.41725011,41920104004) the National Key Research and Development Project of China(Grant No.2020YFA0714803) REE was partially supported by Russian Mega-Grant(Grant No.14.Y26.31.0012) We are grateful to Darryl Stacey and Shannon Walsh(both NTGS)for help during drill core sample collecting in Darwin,Australia.The manuscript has benefited from thoughtful and constructive reviews by two anonymous reviewers,which significantly improved the quality of our paper.Tim Munson publishes with the permission of the Executive Director,Northern Territory Geological Survey
主 题：Large igneous province(LIP) Mafic magmatism Black shale Paleogeographic reconstruction Nuna(Columbia)supercontinent North Australian Craton(NAC) North China Craton(NCC)
摘 要：Comparisons of large igneous provinces(UPs)and black shales from different cratons can provide important constraints on Precambrian paleogeographic reconstructions and a better understanding of the environmental effects of large-scale volcanic events.A comparison of intraplate mafic events mostly interpreted as LIPs or portions of LIPs(LIP fragments/remnants due to continental breakup or erosion)from the North China Craton(NCC)and North Australian Craton(NAC)shows good correlation in the age range from 1800 Ma to 1300 Ma,and four robust age matches at ca.1790-1770 Ma,ca.1730 Ma,ca.1680-1670 Ma and ca.1320 Ma have been *** notably,the coeval ca.1320 Ma Yanliao LIP in the eastern-northern NCC and the Derim Derim-Galiwinku LIP in the NAC are also characterized by similar field occurences and dominantly subalkaline tholeiitic basalts and intraplate geochemical compositions,and are interpreted as portions of the same LIP,separated by continental *** to 1300 Ma,the NCC and NAC exhibit very different magmatic histories,indicating that separation of these two cratons occurred,likely subsequent to the ca.1320 Ma LIP event.A comparison of Paleo-Mesoproterozoic black shales from the NCC and NAC provides further evidence for close connections between these regions during this *** shales of the Chuanlianggou Formation in the northern NCC and the Cuizhuang Formation in the southern NCC were deposited in the age range ca.1650-1635 Ma and can be correlated with ca.1640-1635 Ma black shales in the Barney Creek Formation of the *** of black shales within the Xiamaling Formation in the NCC and the Velkerri and Kyalla formations of the McArthur Basin in the NAC occurred synchronously at ca.1380-1360 *** results from matching of LIP ages and black shales combined with paleomagnetic data show that the northern-northeastern margin of the NCC was connected to the northern margin of the NAC from ca.1800 Ma to 1300 *** long-lived late Pal
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