Late Cambrian (∼490 Ma) Arc Volcanic Rocks of the North Tianshan of Kyrgyzstan: Age Constraints from U-Pb Zircon Dating

被引：0

作者：

Alexeiev, D. V. ^{[1
]}

Rojas-Agramonte, Y. ^{[2
]}

Tretyakov, A. A. ^{[1
]}

Gerdes, A. ^{[3
,4
]}

机构：

[1] Russian Acad Sci, Geol Inst, Moscow 119017, Russia

[2] Christian Albrechts Univ Kiel, Kiel, Germany

[3] Goethe Univ Frankfurt Main, Frankfurt, Germany

[4] Frankfurt Isotope & Element Res Ctr FIERCE, Frankfurt, Germany

来源：

DOKLADY EARTH SCIENCES | 2023年 / 513卷 / 01期

关键词：

U-Pb dating; zircons; arc volcanic rocks; Cambrian; North Tianshan;

D O I：

10.1134/S1028334X2360189X

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

In the present contribution, we aim to better constrain the age of the oldest arc-related volcanic units in the North Tianshan of Kyrgyzstan (NTS) in order to improve our understanding of the early evolution of subduction systems in the western part of the Central Asian Orogenic Belt. We conducted zircon U-Pb dating (LA-ICP-MS) on andesitic tuffs from the Sultansary and Tashtambektor formations, which were previously believed to be of early Cambrian and middle Cambrian to early Ordovician age, respectively. The results reveal ages of 491 +/- 3 and 487 +/- 3 Ma for these formations, indicating that both units are of Late Cambrian age. We conclude that these volcanic rocks belong to a major magmatic arc that evolved on a heterogeneous basement in the NTS during the Late Cambrian and Early Ordovician.

引用

下载

页码：1115 / 1120

页数：6

共 50 条

[1] Late Cambrian (~490 Ma) Arc Volcanic Rocks of the North Tianshan of Kyrgyzstan: Age Constraints from U–Pb Zircon Dating
D. V. Alexeiev
Y. Rojas-Agramonte
A. A. Tretyakov
A. Gerdes
Doklady Earth Sciences, 2023, 513 (1) : 1115 - 1120
[2] Zircon U-Pb Ages and Tectonic Implications of Late Paleozoic Volcanic Rocks in the Western Tianshan,North Xinjiang,China
Zaili Tao
Jiyuan Yin
Wen Chen
Yuelong Chen
Jingbo Sun
Zhihua Xu
Journal of Earth Science, 2022, (03) : 736 - 752
[3] Zircon U-Pb Ages and Tectonic Implications of Late Paleozoic Volcanic Rocks in the Western Tianshan,North Xinjiang,China
Zaili Tao
Jiyuan Yin
Wen Chen
Yuelong Chen
Jingbo Sun
Zhihua Xu
Journal of Earth Science, 2022, 33 (03) : 736 - 752
[4] Zircon U-Pb Ages and Tectonic Implications of Late Paleozoic Volcanic Rocks in the Western Tianshan, North Xinjiang, China
Tao, Zaili
Yin, Jiyuan
Chen, Wen
Chen, Yuelong
Sun, Jingbo
Xu, Zhihua
JOURNAL OF EARTH SCIENCE, 2022, 33 (03) : 736 - 752
[5] Zircon U-Pb SHRIMP dating for the volcanic rocks of the Xiong’er Group: Constraints on the initial formation age of the cover of the North China Craton
ZHAO Taiping1
2. Institute of Geology and Geophysics
3. Tianjin Institute of Geology and Resource
4. Geological Survey of Henan Province
5. Institute of Geology
Science Bulletin, 2004, (23) : 2495 - 2502
[6] Zircon U-Pb SHRIMP dating for the volcanic rocks of the Xiong'er Group: Constraints on the initial formation age of the cover of the North China Craton
Zhao, TP
Zhai, MG
Xia, B
Li, HM
Zhang, YX
Wan, YS
CHINESE SCIENCE BULLETIN, 2004, 49 (23): : 2495 - 2502
[7] Zircon U-Pb age constraints for a Cambrian age for metasedimentary rocks at O'Brien Peak, Antarctica
Paulsen, T.
Encarnacion, J.
Grunow, A.
Pecha, M.
NEW ZEALAND JOURNAL OF GEOLOGY AND GEOPHYSICS, 2016, 59 (04) : 592 - 597
[8] Zircon U-Pb dating of cretaceous adakitic volcanic rocks in the eastern part of North Dabie Mountains
Xue, Huaimin
Dong, Shuwen
Liu, Xiaochun
Chinese Journal of Geochemistry, 2003, 22 (03): : 222 - 230
[9] Zircon U-Pb age for Kesang Rondong volcanic rocks, Southwest Tianshan Mts., Tekes, Xinjiang
Zhu YongFeng
An Fang
Xue YunXing
Chen Bo
Zhang Lifei
ACTA PETROLOGICA SINICA, 2010, 26 (08) : 2255 - 2263
[10] Zircon U-Pb age and geochemical characteristics of the late mesozoic volcanic rocks in Chifeng area
Hao B.
Song J.
Li C.
Yang X.
Geotectonica et Metallogenia, 2016, 40 (06) : 1261 - 1274

← 1 2 3 4 5 →