澜沧老厂矿床线-环结构模式拟建及成矿预测
王瑞雪, 高建国, 杨世瑜
昆明理工大学国土资源工程学院,昆明650093
A LINEAR-RING STRUCTURE MODEL FOR ORE DEPOSIT
LOCATION IN THE LAOCHANG SILVER-LEAD ORE ZONE AND
ITS APPLICATION TO THE PROGNOSIS OF CONCEALED DEPOSITS
WANG Rui-xue, GAO Jian-guo, YANG Shi-yu
Faculty of Land Resource Engineering, Kunming University of Science and Technology, Kunming 650093, China
摘要 根据矿床遥感地质理论,解译分析老厂矿床线、环构造及蚀变信息,并结合地质、物化探信息,拟建老厂矿床线-环结构模
式。在区域性北西向线性构造带遥感地质背景下,南北轴向南老环和东西轴向透镜体系列叠加形成老厂环-环横叠式结构,二者分
别反映华力西期火山洼地和燕山-喜山期隐伏中酸性岩体,其叠加地段是有利成矿部位。影像上受北北西向线性构造控制的色调异
常斑块显示了近矿围岩蚀变的范围,并据此模式进行成矿预测。
关键词 :
水稻 ,
冠层反射 ,
光谱特性 ,
动态变化
Abstract :Based on an interpretation of linear and ring structures and the extraction of alteration information
from TM imagines, in combination with ore deposit geology and geochemical data, the authors formulated a linear-
ring structure model for ore deposit location in the Laochang ore zone according to the theory of remote sensing
deposit geology. Under the background of the regional NNW-trending tectonic belt, the cross overlapping ringed
structure is formed by the superimposition of the NS-trending axial Nanlao ring reflecting the Hercynian volcanic
depression and a series of EW-trending axial lenticular structures reflecting the Yanshanian-Himalayan concealed
intermediate-acid rock bodies. The anomalous hue zones controlled by NNW-striking lines show the alteration
information. The overlapping segments are places favorable for mineralization.
Key words :
Rice reflective characteristics
Dynamic changes
收稿日期: 2006-11-07
出版日期: 2009-07-21
基金资助: 云南省省院省校合作项目“云南澜沧老厂银铅锌多金属矿床立体定位预测与增储研究(2003ADBEA34A025)”。
通讯作者:
王瑞雪(1973-),女,博士研究生,助理研究员,主要研究方向为国土资源遥感技术应用。
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