| 安徽大别山腹地中生代火山岩的发现及其地质意义 |
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| 引用本文： | 钱存超,贾十军. 安徽大别山腹地中生代火山岩的发现及其地质意义[J]. 安徽地质, 1998, 0(1) |
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| 作者姓名： | 钱存超 贾十军 |
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| 作者单位： | 安徽地质调查所 |
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| 摘 要： | 近期作者等在大别山腹地开展１∶５万区调过程时，于中深变质岩中发现一套中生代火山岩系；主要岩石类型为石英安山质晶屑凝灰熔岩、火山角砾岩及凝灰岩。通过详细观察、追索，其中查明火山岩系的空间分布及其与围岩的接触关系。对认识大别山的构造演化及热隆—顶蚀作用、超高压变质带的形成、折返机制等提供新的依据。
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| 关 键 词： | 火山岩 中生代 大别山腹地 |
THE DISCOVERRY AND ITS GEOLOGIC IMPLICATIONS OF MESOZOIC VOLCANICS IN THE HINTERLAND OF RHE DABIE Mt.S,ANHUI |
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| Qian Cunchao Jia Shijun. THE DISCOVERRY AND ITS GEOLOGIC IMPLICATIONS OF MESOZOIC VOLCANICS IN THE HINTERLAND OF RHE DABIE Mt.S,ANHUI[J]. Geology of Anhui, 1998, 0(1) |
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| Authors: | Qian Cunchao Jia Shijun |
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| Abstract: | A suite of Mesozoic volcanics have been discovered in medium-deep metamorphic rocks. When the arthors carried out a 1:50000 scale regional surrvey in the hinterland of the Dabie Mt.s.The primary rock types consist of quartz andesitic crystal tufflava, volcanic and their contact relationship with wall rock have alse been made clear through careful investigation and tracing and served as a basis for recognition of strutural evolution and thermal rising-stoping, the formation of ultra-high pressure metamorphic belt (UHPMB) and exhumational mechanism in the Dabie Mt.s. |
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| Keywords: | volcanics mesozoic hinterland of Dabie Mt.s. |
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