摘要
<正>It has been proposed by Zhang et al.[1]that the northern part of the North China Craton(NCC)was connected to the north-western part of the North Australian Craton(NAC)in the Proterozoic,mainly based on the radial geometry of correlative~1.32 Ga dyke swarms in the two cratons(Fig.1a).While the hypothetical connection between the NCC and the NAC was thought to be paleomagnetically permissible at~1.80-1.78 Ga but with a slightly different configuration[2],the exact duration of either configuration is uncertain(e.g.t[2,3]).Here we present a comparison of
引文
[1]Zhang SH,Zhao Y,Li XH,et al.The 1.33-1.30 Ga Yanliao large igneous province in the North China Craton:implications for reconstruction of the Nuna(Columbia)supercontinent,and specifically with the North Australian Craton.Earth Planet Sci Lett 2017;465:112-25.
[2]Zhang S,Li ZX,Evans DAD,et al.Pre-rodinia supercontinent Nuna shaping up:a global synthesis with new paleomagnetic results from North China.Earth Planet Sci Lett 2012;353-354:145-55.
[3]Pisarevsky SA,Elming S?,Pesonen LJ,et al.Mesoproterozoic paleogeography:supercontinent and beyond.Precambrian Res 2014;244:207-25.
[4]Kirscher U,Mitchell R,Liu Y,et al.Long lived supercontinent Nuna-updated paleomagnetic constraints from Australia.In:Proceedings of the AGU Fall Meeting Abstracts;2018.
[5]Su W,Li H,Huff W,et al.SHRIMP U-Pb dating for a K-bentonite bed in the Tieling Formation,North China.Chin Sci Bull 2010;55:3312-23.
[6]Ahmad M,Dunster JN,Munson TJ,Chapter 15:McArthur Basin.In:Ahmad M,Munson TJ,(eds.),Geology and mineral resources of the Northern Territory Northern Territory Geological Survey,Special Publication;2013;5:1-72.
[7]Javaux EJ,Lepot K.The paleoproterozoic fossil record:implications for the evolution of the biosphere during earth’s middle-age.Earth Sci Rev2018;176:68-86.
[8]Rawlings D,Page R.Geology,geochronology and emplacement structures associated with the Jimbu microgranite,McArthur basin,Northern Territory.Precambrian Res 1999;94:225-50.
[9]Peng P.Precambrian mafic dyke swarms in the North China Craton and their geological implications.Sci China Earth Sci 2015;58:649-75.
[10]Whelan JA,Beyer EE,Donnellan N,et al.1.4 billion years of Northern Territory geology:insights from collaborative U-Pb zircon and baddeleyite dating.In:Proceedings of the Annual Geoscience Exploration Seminar(AGES)Proceedings,Alice Springs,Northern Territory 2016.
[11]Zhang SH,Liu SW,Zhao Y,et al.The 1.75-1.68 Ga anorthosite-mangerite-alkali granitoid-rapakivi granite suite from the northern North China Craton:magmatism related to a Paleoproterozoic orogen.Precambrian Res2007;155:287-312.
[12]Li H,Su W,Zhou H,et al.The first precise age constraints on the Jixian system of the Meso-to Neoproterozoic standard section of China:SHRIMP zircon U-Pb dating of bentonites from the Wumishan and Tieling formations in the Jixian section,North China Craton.Acta Petrol Sin 2014;30:2999-3012.
[13]Fan D,Yang P,Wang R.Characteristics and origin of the middle Proterozoic Dongshuichang chambersite deposit,Jixian,Tianjin,China.Ore Geol Rev1999;15:15-29.
[14]Tang D,Shi X,Jiang G,et al.Stratiform siderites from the Mesoproterozoic Xiamaling Formation in North China:genesis and environmental implications.Gondwana Res 2018;58:1-15.
[15]Zhao W,Hu S,Wang Z,et al.Petroleum geological conditions and exploration importance of Proterozoic to Cambrian in China.Petrol Explor Dev2018;45:1-14.