摘要
针对山东西部二叠纪奎山组厚层砂岩沉积环境尚存争议这一问题,该文通过在单县地区钻孔系统采样、磨片与室内电子探针测试微量元素等手段,对奎山组砂岩进行成因机制探讨。研究发现,奎山组砂岩其形成环境较复杂,不能简单用某个环境解释,其沉积时受到频繁的海侵海退影响,综合分析其应形成于滨海近岸带和三角洲环境。在此基础上,结合实验及沉积学等方法,分析了海水对奎山组砂岩影响变化,将奎山组砂岩划分出4个沉积旋回,建立了成因模式。
In view of the dispute about the sedimentary environment of thick layer sandstones in Kuishan formation of the Permian in western Shandong province,by means of sampling,grinding and indoor electron probe microelements in single county area,genetic mechanism of Kuishan sandstone has been studied.It is found that the environment of Kuishan sandstone is complex,which can not be explained by using a certain environment simply.Its sedimentary affected by frequent transgressive regressive.After comprehensive analysis,it is regarded that the environment should be formed in the coastal inshore belt and delta.On this basis,combining with experiments and sedimentology,the influence of seawater to Kuishan sandstone has been analyzed.Kuishan sandstone has been divided into four sedimentary cycles,and the genesis model has been established.
作者
梁吉坡
LIANG Jipo(Shandong Geological Sciences Institute,Shandong Key Laboratory of Geological Processes and Resource Utilization in Metallic Minerals,Key Laboratory of Gold Mineralization Processes and Resources Utilization Subordinated to the Ministry of Land and Resources,Shandong Jinan 250013,China)
出处
《山东国土资源》
2018年第8期13-18,共6页
Shandong Land and Resources
基金
2011年度山东省地质勘查项目
鲁勘字(2011)53号
2016年度山东省地质勘查成果
鲁国土资字﹝2016﹞74号
关键词
二叠纪
奎山组砂岩
电子探针
沉积旋回
成因模式
单县地区
山东西部
Permian
Kuishan sandstone
electron probe
sedimentary cycle
genetic model
Shanxian area
Shandong province
