U-Pb geochronology and Hf-isotopes on detrital zircons of Lower Paleozoic strata from Hainan Island: New clues for the early crustal evolution of southeastern South China
U-Pb geochronology and Hf-isotopes on detrital zircons of Lower Paleozoic strata from Hainan Island: New clues for the early crustal evolution of southeastern South China
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海南岛下古生界地层碎屑锆石U-Pb年代学和Hf同位素：华南东南部早期地壳演化的新线索
DOI：
10.1016/j.gr.2014.01.015
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发表时间：
2015-06
影响因子：
6.1
通讯作者：
Shao T B
中科院分区：
文献类型：
--
作者：
Zhou Y;Liang X Q;Liang X R;Jiang Y;Wang C;Fu J G;Shao T B
对采自海南岛的6个砂岩样品进行了原位U-Pb测年和Hf同位素分析，研究了碎屑岩的物源、区域岩浆活动和地壳演化过程。其中4个样品（2011 XL-1、2011 JB-1、09 HN 54和2011 GB-1）来自已填图的志留系地层，另外2个样品（2011 TD-1和09 HN 39）分别属于奥陶系和寒武系地层。六个样品的463个一致的U-Pb锆石分析确定了五个主要的年龄群体：2598-2320 Ma（峰值为2480 Ma），1944-1606 Ma（峰值-1750 Ma），1600-1406 Ma（峰值-1502Ma）、1288-902 Ma（峰值-957Ma）、470-427 Ma（峰值-442Ma）和898-710 Ma（峰值-730Ma）、618-513 Ma（峰值-578Ma）两个次级群体。样品中年龄峰值的组合提供了源区岩浆活动的记录：2480 Ma的峰值与新太古代全球大陆增长的年龄一致; 1944-1606 Ma的人口与努纳超大陆的组装时间相关（哥伦比亚）; 1502 Ma的海南岛岩浆活动高峰; 1288-902 Ma和898-710 Ma的全球构造活动与Rodinia的组装和裂解有关。我们的数据还揭示了一个618-513 Ma的人口可能与冈瓦纳的组装。在442马的独特的年龄峰值表明输入从广西造山带的影响。综合年龄和Hf同位素数据表明，各族群的幼年地壳形成时间分别为1900-1400 Ma、940-740 Ma和470-430 Ma。大多数其他年龄的人口，显示负εHf（t）值表明改造旧地壳。
Integrated in situ U–Pb dating and Hf-isotope analysis on detrital zircons from six sandstone samples from Hainan Island have been used to identify clastic sedimentary provenances, regional magmatic activity and crustal evolution processes. Four samples (2011XL-1, 2011JB-1, 09HN54 and 2011GB-1) are from previous mapped Silurian strata and the other two samples (2011TD-1 and 09HN39) belong to Ordovician and Cambrian strata, respectively. A total of 463 concordant U–Pb zircon analyses of the six samples define five major age populations: 2598–2320 Ma (a peak of 2480 Ma), 1944–1606 Ma (peak-1750 Ma), 1600–1406 Ma (peak-1502 Ma), 1288–902 Ma (peak-957 Ma), 470–427 Ma (peak-442 Ma) and two subordinate populations at 898–710 Ma (peak-730 Ma) and 618–513 Ma (peak-578 Ma). The combination of age peaks within the samples provide a record of igneous activity in the source region: the 2480 Ma peak is consistent with those ages reported for Neoarchean global continental growth; the 1944–1606 Ma population correlates with the time of assembly of the supercontinent Nuna (Columbia); the 1502 Ma peak with documented magmatic activity on Hainan Island; and the 1288–902 Ma and 898–710 Ma populations with global tectonothermal activity associated with assembly and breakup of Rodinia. Our data also reveal a 618–513 Ma population that may relate with the assembly of Gondwana. The distinctive age peak at 442 Ma indicates input from a region affected by the Kwangsian orogeny. The combined ages and Hf-isotope data for each population suggest that generation of juvenile crust occurred at 1900–1400 Ma, 940–740 Ma and 470–430 Ma. Most of the other age populations that display negative εHf(t) values suggest reworking of older crust.
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影响因子：
3.3
作者：
Deru Xu;Zhilin Wang;Jianxin Cai;Chuanjun Wu;N. Bakun-czubarow;Li Wang;Huayong Chen;M. Baker
通讯作者：
Deru Xu;Zhilin Wang;Jianxin Cai;Chuanjun Wu;N. Bakun-czubarow;Li Wang;Huayong Chen;M. Baker
华南武夷山西侧流纹岩的时代及构造环境
DOI：
10.1007/s11430-008-0078-4
发表时间：
2008-07
期刊：
Science in China Series D-Earth Sciences
影响因子：
--
作者：
Wang YanBin;Shu LiangShu;Deng Ping;Yu JinHai;Jiang ShaoYong
通讯作者：
Jiang ShaoYong
影响因子：
2
作者：
P. Myrow;K. Snell;N. Hughes;T. Paulsen;N. Heim;S. K. Parcha
通讯作者：
P. Myrow;K. Snell;N. Hughes;T. Paulsen;N. Heim;S. K. Parcha
影响因子：
--
作者：
Xian‐Hua Li;Hanwen Zhou;Shijiang Ding;Chi-yu Lee;Renjie Zhang;Yeming Zhang;W. Ge
通讯作者：
Xian‐Hua Li;Hanwen Zhou;Shijiang Ding;Chi-yu Lee;Renjie Zhang;Yeming Zhang;W. Ge
影响因子：
5.8
作者：
R. Larson
通讯作者：
R. Larson