Detrital zircon U-Pb age perspective on the sediment provenance and its geological significance of sandstones in the Lamandau region, SW Borneo, Indonesia
Detrital zircon U-Pb age perspective on the sediment provenance and its geological significance of sandstones in the Lamandau region, SW Borneo, Indonesia
复制标题
印度尼西亚婆罗洲西南部拉曼道地区砂岩沉积物来源的碎屑锆石 U-Pb 年龄透视及其地质意义
DOI：
10.1007/s00343-021-0405-6
复制
发表时间：
2021-12
影响因子：
1.6
通讯作者：
Zhaojian Wu
中科院分区：
文献类型：
--
作者：
Shuang Li;Saijun Sun;Xiaoyong Yang;Weidong Sun;Zhaojian Wu
西南婆罗洲（SW婆罗洲）块属于巽他大陆，是婆罗洲最古老的大陆片段，被认为是来自冈瓦纳大陆。Ketapang杂岩砂岩中113个碎屑锆石的U-Pb同位素年龄为3298 ~ 78 Ma，具有6个主要年龄群：2476 ~ 2344 Ma、2016 ~ 1831 Ma、1296 ~ 759 Ma、455-406 Ma、262-210 Ma和187-78 Ma。这些碎屑锆石的最小年龄为78 Ma，表明砂岩的最大沉积时代为Campanian期。二叠纪-晚白垩世碎屑锆石被解释为来自附近的施瓦纳山脉和二叠纪-三叠纪锡带花岗岩类在东南亚（东南亚）。太古宙-石炭纪碎屑锆石具有大陆冈瓦纳源区，其年龄谱与澳大利亚西北部相似，表明这些锆石可能来自澳大利亚西北部和中部的造山带和俯冲带。这些碎屑锆石的物源表明，在古生代，西南婆罗洲地块位于澳大利亚西北边缘的班达湾地区。早侏罗世，婆罗洲西南部从澳大利亚断裂并向北移动，早白垩世，该地块被添加到孙达兰。白垩纪时，东亚陆块俯冲后与西南婆罗洲碰撞，导致西南婆罗洲施万纳山脉发生大范围的岩浆活动。
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.
登录
查看更多内容
影响因子：
1.8
作者：
C. Xiong;Hongde Chen;Y. Niu;A. Chen;Chenggong Zhang;Feng Li;Shenglin Xu;Shuai Yang
通讯作者：
C. Xiong;Hongde Chen;Y. Niu;A. Chen;Chenggong Zhang;Feng Li;Shenglin Xu;Shuai Yang
DOI：
--
发表时间：
2006
期刊：
--
影响因子：
--
作者：
L. Bagas;D. Huston;J.A.C. Anderson;T. Mernagh
通讯作者：
L. Bagas;D. Huston;J.A.C. Anderson;T. Mernagh
影响因子：
5.8
作者：
A. Draut;P. Clift
通讯作者：
A. Draut;P. Clift
影响因子：
6.1
作者：
J. Hennig;H. Breitfeld;R. Hall;A. M. S. Nugraha
通讯作者：
J. Hennig;H. Breitfeld;R. Hall;A. M. S. Nugraha
影响因子：
3.5
作者：
Belousova, EA;Griffin, WL;Fisher, NI
通讯作者：
Fisher, NI