| 王向兰,胥迎红.内蒙古太仆寺旗破火山演化过程及其成矿规律[J].矿产勘查,2012,3(5):589-595 |
| 内蒙古太仆寺旗破火山演化过程及其成矿规律 |
| Tectonic evolution and mineralized characteristics of Taipusi caldera, Inner Mongolia |
| 投稿时间：2011-10-27 |
| DOI： |
| 中文关键词: 太仆寺旗 破火山演化 成矿规律 内蒙古 |
| 英文关键词: Taipusi the evolution of caldera mineralized characteristic Inner Mongolia |
| 基金项目: |
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| 摘要点击次数: 2021 |
| 全文下载次数: 1238 |
| 中文摘要: |
| 太仆寺旗破火山外环为相对低缓的山体,由溢流相和侵出相熔岩构成,内环为高山,由爆发相浮岩流堆积物构成,中心主要由侵入相花岗斑岩体占据。火山喷发经历了强烈喷发—破火山塌陷—破火山口形成—侧火山活动和破火山口复活等不同活动方式的演化过程,不同阶段火山活动方式和岩浆成分均有较大差异。破火山矿化主要发生在花岗斑岩与侵出相泡沫熔岩接触带并有火山期后断裂叠加的部位,受东西向基底断裂、破火山口构造、破火山中心斑岩体和火山期后断裂等多重因素控制。 |
| 英文摘要: |
| The outer ring of the caldera at Taipusi is low and gentle mountains which are comprised of lava from overflows and extrusive facies; the inside ring is aerial moutains which are comprise of pumice flow deposits from explosive facies. The center is taken up by the granite porphyry body from intrusion facies. The evolution of the caldera has gone through the evolutionary process in various ways including a sudden intense burst-the sinking of caldera-the formation of crate-the activity of the parasitic volcano-the resurgence of the caldera,etal. The model of action and the composition of magma have a great difference in the different stages. The mineralization locates in the contact zone of granite-porphyry of intrusive facies and froth of extrusice facies that superposed by the volcanic faults in the center of caldera. There are multiple factors of ore-controlling, such as east-west basement faults, caldera tectonics, porphyries body in the center, faults formed after the eruption,etal. |
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