Detrital zircon U-Pb age perspective on the sediment provenance and its geological significance of sandstones in the Lamandau region, SW Borneo, Indonesia

IOCAS-IR

	Detrital zircon U-Pb age perspective on the sediment provenance and its geological significance of sandstones in the Lamandau region, SW Borneo, Indonesia
	Shuang LI; Saijun SUN ; Xiaoyong YANG ; Weidong SUN; Zhaojian WU
发表期刊	Journal of Oceanology and Limnology
ISSN	2096-5508
	2022-03-15
出版年	2022
卷号	v.40 期号:02 页码:112-130
文献类型	CNKI期刊论文
摘要	The Southwest Borneo(SW Borneo) block belongs to Sundaland and is the oldest continental fragment of Borneo that is believed to derive from the Gondwana land. The U-Pb isotopic dating ages of 113 detrital zircons from sandstones of the Ketapang Complex in SW Borneo range from 3 298 Ma to 78 Ma, and show six major age populations: 2 476–2 344 Ma, 2 016–1 831 Ma, 1 296–759 Ma, 455–406 Ma, 262–210 Ma, and 187–78 Ma. The youngest age of these detrital zircons is 78 Ma, indicating that the maximum depositional age of the sandstones is Campanian. Permian-Late Cretaceous detrital zircons are interpreted as having been derived from the nearby Schwaner Mountains and the Permian-Triassic tin belt granitoids in Southeast Asia(SE Asia). Archean-Carboniferous detrital zircons have a continental Gondwana provenance, with their age spectra similar to those of northwestern Australia, indicating that these zircons could be derived from the orogenic belts and cratons in northwestern and central Australia. The provenance of these detrital zircons in this study indicates the SW Borneo block was located on the northwestern margin of Australia during the Paleozoic, in the region of the Banda Embayment. SW Borneo rifted from Australia and moved northward in the Early Jurassic, and this block was added to Sundaland in the Early Cretaceous. The Luconia-Dangerous Grounds continental fragment derived from East Asia collided with SW Borneo after subduction in the Cretaceous, which induced the widespread magmatism in the Schwaner Mountains in SW Borneo.
关键词	detrital zircon U-Pb dating provenance Southwest Borneo(SW Borneo) Sundaland
CNKI专辑号	A;
CNKI专辑名称	基础科学;
CNKI专题号	A011;
CNKI专题名称	地质学;
分类号	P597.3;P548
收录类别	中科院核心 ; 中科院扩展
语种	英文;
资助项目(基金）	Supported by the National Natural Science Foundation of China (Nos. 41803038, 41903005) ; the Guangxi Natural Science Foundation (No. 2018GXNSFAA138193) ; the China Postdoctoral Science Foundation (No. 2019M662458)
文献类型	CNKI期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/187474
专题	中国科学院海洋研究所
作者单位	1.GuangxiKeyLaboratoryofHiddenMetallicOreDepositsExploration,CollegeofEarthSciences,GuilinUniversityofTechnology 2.CenterofDeepSeaResearch,InstituteofOceanology,CenterforOceanMega-Science,ChineseAcademyofSciences 3.LaboratoryforMarineGeology,PilotNationalLaboratoryforMarineScienceandTechnology(Qingdao) 4.CASKeyLaboratoryofCrust-MantleMaterialsandEnvironments,SchoolofEarthandSpaceSciences,UniversityofScienceandTechnologyofChina 5.ChinaCoalGeologyGroupLimited
推荐引用方式 GB/T 7714	Shuang LI,Saijun SUN,Xiaoyong YANG,et al. Detrital zircon U-Pb age perspective on the sediment provenance and its geological significance of sandstones in the Lamandau region, SW Borneo, Indonesia. 2022.