| 若尔盖嫩哇火山岩地质特征 |
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| 引用本文： | 郑先纬,杨学俊,唐中相,白宪洲,熊昌利,黄柏鑫.若尔盖嫩哇火山岩地质特征[J].四川地质学报,2010,30(3):265-270. |
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| 作者姓名： | 郑先纬 杨学俊 唐中相 白宪洲 熊昌利 黄柏鑫 |
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| 作者单位： | 1. 四川省地质调查院,成都,610081
2. 四川省矿产资源储量评审中心,成都,610081 |
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| 摘 要： | 通过对若尔盖嫩哇火山岩产出层位、岩石学特征、地球化学特征及火山活动构造环境、火山岩形成年代的讨论,认为嫩哇火山岩受玛曲-然安大断裂之次级断层控制,属于造山带末期滞后的火山喷发构造环境,喷发时代属于早侏罗世,并厘定为下侏罗统郎木寺组。
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| 关 键 词： | 火山岩 造山带 郎木寺组 若尔盖嫩哇 |
Geological Features of Volcanic Rock in Nenwa, Roigê, Sichuan |
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| ZHENG Xianwei,YANG Xuejun,TANG Zhongxiang,BAI Xianzhou,XIONG Changli,HUANG Baixin.Geological Features of Volcanic Rock in Nenwa, Roigê, Sichuan[J].Acta Geologica Sichuan,2010,30(3):265-270. |
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| Authors: | ZHENG Xianwei YANG Xuejun TANG Zhongxiang BAI Xianzhou XIONG Changli HUANG Baixin |
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| Institution: | 1-Sichuan Institute of Geological Survey,Chengdu 610081;2-Sichuan Center of Reserve Checking and Approving of Mineral Resources,Chengdu 610081) |
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| Abstract: | This paper deals with horizon,petrographical and geochemical characteristics,tectonic setting and geochronology of volcanic rock in Nenwa,Roigê,Sichuan.The study indicates that the volcanic rock was Early Jurassic in age and controlled by secondary faults of the Maqu-Ran’an major fault.The volcanic rock is named after the Lower Jurassic Langmusi Formation. |
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| Keywords: | volcanic rock orogenic zone Langmusi Formation Nenwa Roigê |
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