| 张忠义,龙灵利,杨国龙,贺昕宇,王宏伟.卡拉塔格矿集区早古生代火山活动旋回及其成矿类型研究[J].矿产勘查,2022,13(12):1769-1774 |
| 卡拉塔格矿集区早古生代火山活动旋回及其成矿类型研究 |
| Early Paleozoic volcanic cycle and the related mineralization type in the Kalatage ore concentration area,eastern Tianshan |
| 投稿时间：2022-10-25 |
| DOI：10.20008/j.kckc.202212004 |
| 中文关键词: 火山旋回 成矿类型 早古生代 卡拉塔格 矿集区 |
| 英文关键词: volcanic cycle mineralization type early Paleozoic Kanggurtag ore concentration area |
| 基金项目:本文受中国地质调查局项目(DD20160011；DD20190011)及新疆维吾尔自治区地勘基金项目(T14-1-LQ12)联合资助。 |
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| 中文摘要: |
| 为了给找矿勘探开发提供基础地质依据和支撑,本文在最新的1∶5万面上资料基础上,对卡拉塔格矿集区早古生代火山活动旋回及其成矿类型开展研究。依据早古生代火山岩石组合及火山时空活动特征分为4个亚旋回。第一亚旋回为一套裂隙式喷发为主的玄武质—安山玄武质岩石组合,主要发育于南部,产有红海VMS型铜锌矿床；第二亚旋回以中心式喷发为主的安山质—英安质岩石组合,中部活动最强烈,产有红石热液石英脉状铜矿床；第三亚旋回为裂隙式火山喷发为主的玄武质—安山玄武质夹安山质—英安质岩石组合,主要发育于北部,产有红石北VMS型铜金矿床；第四亚旋回为高位侵出或中心式喷发产出的流纹质岩石组合,产有红山浅成低温铜金矿床。 |
| 英文摘要: |
| Based on the latest data derived from the 1∶50000 geological mapping, early Paleozoic volcanic cycle and the related mineralization type have been carried out to help to remain the geological underpinnings of exploration programs in the Kalatage ore concentration area. In light of the rock association and time-space distribution, the volcanic activities can be classified into four sub cycles. The first sub cycle is a set of basaltic-andesitic basalt rock association dominated by fissure eruption. It is associated with Honghai VMS-type Cu-Zn deposit and mainly developed in the south. The second sub cycle is represented mainly by andesitic dacite rock association due to intensive center eruption in the central area and Hongshi hydrothermal vein type copper deposit occurs during this period.In the third sub cycle, volcanism migrated toward north area, dominated by the fissure eruption and developed basaltic-andesitic basaltic intercalated with andesitic-dacitic rock association. In this stage, Hongshibei VMS type Cu-Au deposit were formed. The volcanic rocks of the fourth sub cycle consist of the rhyolitic rock association dominated by the explosion and extrusion, and has the genetic relationship with Hongshan epithermal Cu-Au deposit. |
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