浙江省庆元破火山地球物理地球化学特征及地质意义

GEOPHYSICAL AND GEOCHEMICAL CHARACTERISTICS OF THE QING YUAN CALDERA IN ZHEJIANG PROVINCE AND THEIR GEOLOGICAL SIGNIFICANCE

庆元破火山以中心式仙桃山岩体为中心,高、中、低温成矿元素异常依次由内向外分布。它们各自拥有不同的空间展布,矿物组成,结构构造,围岩蚀变和伴生元素特征。通过地球物理与地球化学有机结合,深入探讨破火山的空间分布特征,可以开拓寻找不同类型的矿产资源及矿产资源远景评价的思路。

The caldera in Qingyuan County has the Xiantaoshan volcanic body as its center, and the anomalies of high, middle and low-temperature ore-forming elements are distributed in succession from the interior part outwards. These anomalies are different from each other in such aspects as spatial distribution, mineral composition, structure and texture, wall rock alteration and associated minerals. A detailed discussion on spatial distribution characteristics of the ealdera by combining geophysics and geochemistry can help us broaden the train of thought in search for different mineral resources and appraisal of prospective mineral resources.