当前位置: X-MOL 学术Gondwana Res. › 论文详情
Evolution of the Indochina block from its formation to amalgamation with Asia: Constraints from protoliths in the Kontum Massif, Vietnam
Gondwana Research ( IF 6.174 ) Pub Date : 2020-11-11 , DOI: 10.1016/j.gr.2020.11.002
Nobuhiko Nakano; Yasuhito Osanai; Masaaki Owada; Pham Binh; Tomokazu Hokada; Hiroshi Kaiden; Vuong T.S. Bui

This study reported the U-Pb ages and Hf isotopes of the zircons of Triassic and Silurian metamorphic rocks in the Kontum Massif, central Vietnam to understand the origin and evolution of the Indochina Block. The detrital zircon signature of the Triassic metasedimentary rocks corresponds to the Neoproterozoic sequence in the Indochina Block and that of the Silurian rocks corresponds to the Paleo- to Mesoproterozoic sequence in the southwestern margin of the Yangtze Block. From Triassic metaigneous rocks, we obtained three meaningful inherited ages; ~1450 Ma, 500 Ma, and 450 Ma. The Triassic metasedimentary rocks occur in close association with the Triassic felsic gneiss and mafic granulite (former eclogite) with magmatic inherited zircon ~1450 Ma and intermediate gneiss with ~500 Ma protolith age. The Hf isotopes suggest the ~1450 Ma age as the earlier or primary stage of the formation of the Indochina Block and the ~500 Ma age as the timing of its reworking, before the block subducted beneath the South China Block to form Triassic eclogite relicts. The Ordovician magmatic ages (~450 Ma) from metaigneous rocks in the Kontum Massif, combined with their volcanic arc whole-rock chemistry, Ordovician–Silurian low-pressure/high-temperature isobaric heating metamorphism, and the detrital zircon signature strongly suggest an Ordovician–Silurian continental arc in the present southwestern margin of the South China Block prior to the Triassic continental collision.

更新日期:2020-11-21
全部期刊列表>>
施普林格,自然编辑
ERIS期刊投稿
欢迎阅读创刊号
自然职场,为您触达千万科研人才
spring&清华大学出版社
城市可持续发展前沿研究专辑
Springer 纳米技术权威期刊征稿
全球视野覆盖
施普林格·自然新
chemistry
物理学研究前沿热点精选期刊推荐
自然职位线上招聘会
欢迎报名注册2020量子在线大会
化学领域亟待解决的问题
材料学研究精选新
GIANT
ACS ES&T Engineering
ACS ES&T Water
屿渡论文,编辑服务
ACS Publications填问卷
阿拉丁试剂right
苏州大学
林亮
南方科技大学
朱守非
胡少伟
有机所林亮
隐藏1h前已浏览文章
课题组网站
新版X-MOL期刊搜索和高级搜索功能介绍
ACS材料视界
上海纽约大学
浙江大学
廖矿标
天合科研
x-mol收录
试剂库存
down
wechat
bug