摘要
岩相古地理研究和编图是一项重要的基础地质工作。这里首次对四川盆地嘉陵江组九个储层段进行了岩相古地理的恢复,其中重要的含盐亚段在纵向上分布于T1j42、T1j44、T1j15、T1j25等层位,在区域上膏、盐盆主要分布于川中至川东北的局部地区。利用单井卤水层水化学分析数据以及重要的含盐亚段岩相古地理的研究结果,对四川盆地嘉陵江组卤水分布特征进行分析,并根据富钾卤水的相关工业开采指标预测圈定了富卤中心和聚钾中心,为四川盆地下三叠统嘉陵江组富钾卤水的勘探指明方向。
Lithofacies-paleogeographic research and woven figure is an important basic geological work.This article renews the lithofacies-paleogeographic in nine reservoir section of Jialingjiang formation in Sichuan basin for the first time,The key salty sub horizons distribute in T1j42、T1j44、T1j51、T1j52 formations in vertical.In the areas,the plaster,salinastone basin mainly distributed in midland to northeast of the Sichuan basin.Using single well brine formation water chemical analysis data and the research results of the important salty sub horizons' lithofacies-paleogeographic,the Jialingjiang group brine's distribution was analyzed.According to the standard of rich potassium brine industrial production index,we predict and delineate the rich halogen center and aggregate potash center,which indicate the direction of exploring rich potassium brine in the lower Triassic,Jialingjiang group of sichuan basin.
出处
《物探化探计算技术》
CAS
CSCD
2012年第1期62-72,2,共11页
Computing Techniques For Geophysical and Geochemical Exploration
基金
国家地质调查项目(1212010011803)
关键词
四川盆地
嘉陵江组
岩相古地理
聚钾中心
Sichuan basin
Jialingjiang formation
lithofacies palaeogeography
aggregate-potash center
