Gejiu tin-copper polymetallic ore deposit located in Yunnan Province is one of the largest tin ore districts in the world, comprising of Malage, Songshujiao, Gaosong, Laochang, and Kafang ore fields. There are two kinds of ore-bodies in Kafang copper deposit. One is stratiform-like ore-body, and the other is contact skarn ore-body. This deposit has been known as the Yanshanian granite-related deposit for long time, however recently some researches argue that it is a syngenetic deposit formed by marine exhalation or it is a basalt-related. The Kafang and Laochang basalt type copper deposit is selected as the main study object. In order to reveal the ore-hosting structural development patterns and its geological implication, the measurement and statistical analysis on the ore-hosting or ore-controlling structures developed in granite, basalt, and marble are studied. It shows that the basalt type copper deposit mainly controlled by the N-S direction, E-W direction, and NE trending structures, and especially the NW trending structures should be given more attention than ever before. The ore-hosting structural space is also controlled by these structures. The results will provide an important evidence for the genetic type establishment of Kafang and Laochang basalt copper deposit, and give a guide to the next exploration of ore resources.
LI Baolong;WANG Dandan;ZHU Dequan;YU Xiaoge;FAN Haibin
. Ore-hosting Structures of Kafang Basalt Type Copper Deposit, Gejiu District of Tin Polymetallic Ore and Its Geological Implication[J]. Science & Technology Review, 2013
, 31(7)
: 61
-70
.
DOI: 10.3981/j.issn.1000-7857.2013.07.010