| 摘要: |
| 以1:25万邦多区幅、措麦区幅火山岩区野外地质调查为基础,运用岩石地层-火山岩相-火山构造法一体化研究思路,吸收20世纪90年代以来国内外对火山学研究的新成果,并借鉴1:5万区域地质调查中大比例火山地质图编制的经验,从单个火山机构调查扩展到火山机构组合研究,从而填制出火山构造面貌清楚的古火山地质图,全面地反映了不同时期(旋回)火山作用特点、演化规律及火山岩相的分布特征,合理地建立起火山地层层序。 |
| 关键词: 火山构造组合 填图方法 措麦 邦多 西藏 |
| DOI： |
| 附件 |
| 投稿时间：2004-04-12 |
| 基金项目:1∶25万《邦多区幅》、《措麦区幅》区域地质调查(20001300009161)。 |
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| The research and mapping of volcanic associations: An example from the volcanic rocks in the Comai-Boindoi zone,Xizang |
| LIU Qing-hong, LIAO Si-ping, HUANG Chuan-guan |
| (Jiangxi Institute of Geological Survey, Nanchang 330201, Jiangxi, China) |
| Abstract: |
| The present paper is base on the field geological investigation of the volcanic rocks within the extent of the 1:250 000 Boindoi and Comai Sheets in Xizang according to the combination of lithostratigraphy-volcanic facies -volcanic structures,referenced to the new results from volcanology at home and abroad since 1990's of last century,and the recent experience from the large-scale geological mapping during the 1:50 000 regional geological survey. The study begins from a single volcano to volcanic associations. The resultant palaeovolcanic geological maps are well-defined in volcanic structures,and may reflect the features of volcanic activities during various stages (cycles) and evolution and distribution of volcanic facies,and reasonably reconstruct the volcanic stratigraphic sequences. |
| Key words: volcanic-structural association mapping Comai Boindoi Xizang |
