کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1881758 1533444 2009 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Fission track dating of mesozoic sandstones and its tectonic significance in the Eastern Sichuan Basin, China
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم تشعشع
پیش نمایش صفحه اول مقاله
Fission track dating of mesozoic sandstones and its tectonic significance in the Eastern Sichuan Basin, China
چکیده انگلیسی

To establish the tectonic evolution of the eastern Sichuan basin, apatite fission track dating and time-temperature thermal history modeling were carried to analyze on 11 samples collected from Jurassic sandstones. The results indicate that the cooling and exhumation process of the eastern Sichuan basin can be divided into three stages since Cretaceous, (1) a rapid cooling phase between ∼100 and ∼70 Ma, (2) following by a period of relative thermal stability phase between ∼70 and ∼15 Ma, (3) and then a new rapid cooling stage after ∼15 Ma. Two rapid cooling events imply that the eastern Sichuan basin once underwent two tectonic movements since Cretaceous. The first rapid cooling is associated with Mesozoic tectonic reactivation beginning at 100 Ma, which result in folds and faults of the eastern Sichuan basin. The second tectonic movement occurred at 15 Ma, which is related to denudation by compression resulting from the eastward growth of Tibetan plateau uplift.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Radiation Measurements - Volume 44, Issues 9–10, October–November 2009, Pages 945–949
نویسندگان
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