山东临朐新生代玄武岩盆地地质—水文地质条件的初步分析及资源开发建议

PRELIMINARY STUDY AND ANALYSIS OF THE GEOLOGICHYDROGEOLOGIC CONDITIONS OF THE CENOZOIC BASALT BASIN IN LINJU, SHANDONG

摘要:

本文对临朐新生代玄武岩盆地的地层、构造、玄武岩的基本特征进行了论述。把玄武岩的产状划分为层状和火山岩颈两类。火山岩颈的柱状节理具有向下撒开的特点,因耐剥蚀抗风化而形成了“孤岛状山”的地貌外形。还详细介绍了玄武岩的构造、化学成分、矿物成分、微量元素和测年资料。在水文地质方面介绍了孔洞裂隙含水层新的地下水类型,对水质、水量及地下水的运动规律进行了初步探讨,同时建议对玄武岩盆地中的建材、硅藻土、蓝宝石、矿泉水,旅游地质等资源进行勘察和开发利用。

Abstract:

This paper dicusses the basic characteristics of the stratigraphy, geologic structures and basalts occurring in Linju County, Shandong. The basalts there can be classified into volcanic plug facies and layered facies according to their occurrence. The columnar joints of the volcanic plugs commonly are characterised by downward scattering, while the vents have the geomorphologic form of "isolated hills" because they are more resistant to denudation and weathering than the country rocks. In the paper, the aut...