| 河南省华北地台区成盐条件及找盐远景 |
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| 引用本文： | 温同想,徐松绿.河南省华北地台区成盐条件及找盐远景[J].河南国土资源,1997(4). |
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| 作者姓名： | 温同想 徐松绿 |
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| 作者单位： | 河南省地矿厅地调二队 |
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| 摘 要： | 河南省华北地台区寒武系下统自下而上划分为辛集组含磷陆源碎屑岩，朱砂洞组蒸发岩—镁质碳酸盐岩和馒头组含陆源碎屑碳酸盐岩夹不稳定蒸发岩。早寒武世古地理环境为华北陆表海，划分为三个相区七个亚相区；有朱砂洞早期和馒头早中期两个成盐亚期，均属海相化学岩型硫酸盐岩和镁质碳酸盐岩互层的剖面结构类型；有潮上膏盐湖和潮上盐滩两种成盐环境，浅盆浅水和潮上萨勃哈两种成盐模式。经过对成盐地质条件和控矿因素综合分析，石膏成矿远景较大，石盐有局部富集成矿的可能性，钾盐有成矿的某些基本地质前提。
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| 关 键 词： | 华北地台，早寒武世，岩相古地理，含盐岩系，成盐期，膏盐湖，潮上萨勃哈 |
SALT FORMING CONDITIONS AND SALT EXPLORING PROSPECTS IN NORTH CHINA PLATFORM REGION OF HENAN PROVINCE |
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| Abstract: | The Lower Cambrian in North China platform region of Henan province in ascending order is divided into phosphorus bearing terrigenous fragmental rock of the Xinji Formation, evaporite magnesian carbonate rock of the Zhushadong Formation and terrigenous fragment bearing carbonate rock and unstable evaporite intercalation of the Mantou Formation. The paleogeography and paleoenvironment of the Lower Cambrian can be belonged to the epicontinental sea of North China It can be divided into three facies provinces and seven subfacies provinces. It includes two salt forming substages of the early Zhushadong Formation and early-middle Mantou Formation. Its sectional textural type is made from the interbeds of sulfate rock(marine chemical rock type)and magnesian carbonate rock. It has two sorts of salt forming environment:supralittoral gypsic saline lake and supralittoral salt flat. And it has two salt forming patterns:shallow basin and shallow water, supratidal sabakha. Through the medium of multidisciplinary analysis of the salt forming geological conditions and the ore control factors,the authors consider the prospect of the gypsum mineralization to be good, it is possible to enrich and form locally the rock salt deposits, and to have some basic geologic features to form potash salt deposits. |
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| Keywords: | North China platform the Early Cambrian lithofacies and paleogeography salt bearing rock series salt forming epoch gypsic saline lake supratidal sabakha |
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