贾星亮,成俊峰,谭广辉,马冬晨,武涛

• 1:中国石油化工股份有限公司西北油田分公司勘探开发研究院

摘要(Abstract)：

在塔河油田S112-1井中奥陶世—晚奥陶世已建立的牙形石生物地层框架内,对该井的124件碳酸盐岩岩芯样品进行了碳同位素分析研究。发现本次所获得碳同位素值全部在正值区域,δ13 C最大值为+2.7‰,最小值为+0.2‰,平均值为+1.071‰。从一间房组至恰尔巴克组碳同位素表现出缓慢上升。在良里塔格组发现可进行全球对比的GICE正漂移事件,此发现丰富了塔里木盆地覆盖区的中奥陶世—晚奥陶世的碳同位素证据,进一步验证了GICE事件的全球性。在GICE正漂移事件之后,碳同位素值经过短暂的波动,稳定表现在+1‰附近振荡。该时期的碳同位素值的变化趋势与中晚奥陶世海平面变化具有相关性。

关键词(KeyWords)： 化学地层;碳同位素;GICE事件;中奥陶世—晚奥陶世;塔河油田;塔里木盆地;新疆

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 贾星亮,成俊峰,谭广辉,马冬晨,武涛

DOI: 10.19839/j.cnki.dcxzz.2016.04.005

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