Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6440642 | Lithos | 2015 | 14 Pages |
Abstract
A compilation of U-Pb and Hf-isotope data of detrital zircons from the whole Altai-Mongolian terrane shows that the source area (i.e., the western Mongolia) underwent two most extensive magmatic activities at ca. 1.02-0.67 Ga and 0.67-0.43 Ga. These zircons possess both positive and negative εHf(t) values, suggesting significant crustal growth and reworking during the magmatic activities. Our study underlines a crucial role of Precambrian micro-continents (e.g., the Tuva-Mongolian terrane) and island arcs surrounding them in the formation of the Central Asian Orogenic Belt.
Keywords
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Geochemistry and Petrology
Authors
Ming Chen, Min Sun, Keda Cai, Mikhail M. Buslov, Guochun Zhao, Elena S. Rubanova, Elena E. Voytishek,