Characteristics of Igneous Rocks of Upper Sinian Profile in Xiaoerbulake of Akesu, Xinjiang

Xinjiang Petroleum Geology ›› 2009, Vol. 30 ›› Issue (1): 47-48.

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Characteristics of Igneous Rocks of Upper Sinian Profile in Xiaoerbulake of Akesu, Xinjiang

REN Kang-xu, ZHENG Yan, XIA Zhi-gang, YANG Hong-fei, HUANG Jin-hua, TIAN Xue-wen

Research Institute of Exploration and Development, Tarim Oilfield Company, PetroChina, Korla, Xinjiang 841000, China

Received:2008-05-05 Revised:2008-07-16 Online:2009-02-01 Published:2020-08-21

Abstract

Abstract: A suit of basic igneous rocks with accumulating thickness over 100 m developed in the Upper Sinian profile in Xiaoerbulake of Akesu, northwestern margin of Tarim basin. Nowadays, the lithofacies and forming age of them are still controversial. Based on field investigation, identification under microscope and K-Ar isotopic dating, it is confirmed they are a suit of diabases intruded along the bedding and have a K-Ar age of 452.56×10 ⁶ a±17.53×10 ⁶ a. The emplacement age corresponds to the Middle-Late Ordovician.

Key words: Akesu, igneous rock, Xiaoerbulake profile, K-Ar age dating

CLC Number:

REN Kang-xu, ZHENG Yan, XIA Zhi-gang, YANG Hong-fei, HUANG Jin-hua, TIAN Xue-wen. Characteristics of Igneous Rocks of Upper Sinian Profile in Xiaoerbulake of Akesu, Xinjiang[J]. Xinjiang Petroleum Geology, 2009, 30(1): 47-48.

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Characteristics of Igneous Rocks of Upper Sinian Profile in Xiaoerbulake of Akesu, Xinjiang

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