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chuan bei hong ceng chu shui jie gou shui xing yu fu
Pages: 29-32
Year: Issue:  4
Journal: Hydrogeology and Engineering Geology

Keyword:  红层区储水地下水形成川北砂岩结构类型泥岩盆地富水岩层倾角;
Abstract: <正> 川北红层系指北纬310°20′以北的中、上侏罗系及白垩系的一套紫红色陆相砂、泥岩互层。因成岩后未遭强烈的构造变动,地层多较平缓,倾角多小于30度,受愈往盆地中心,倾角愈小,甚至近于水平。岩相变化也是由盆地边缘到中心,砂岩颗粒由粗变细,泥质增加,由薄层渐变为厚层。本区西部为北东至北北东向
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