|本期目录/Table of Contents|

[1]司国辉,苏会平,李玮娜,等.新疆巴音沟蛇绿混杂岩带中不同类型火山岩地球化学特征及构造环境[J].地球科学与环境学报,2015,37(03):34-41.
　SI Guo-hui,SU Hui-ping,LI Wei-na,et al.Tectonic Setting and Geochemical Characteristics of Different Kinds of Volcanic Rocks from Bayingou Ophiolitic Melange Belt, Xinjiang[J].Journal of Earth Sciences and Environment,2015,37(03):34-41.
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新疆巴音沟蛇绿混杂岩带中不同类型火山岩地球化学特征及构造环境(PDF)
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《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

卷:
第37卷
期数:
2015年第03期
页码:
34-41
栏目:
基础地质与矿产地质
出版日期:
2015-05-15

文章信息/Info

Title:
Tectonic Setting and Geochemical Characteristics of Different Kinds of Volcanic Rocks from Bayingou Ophiolitic Melange Belt, Xinjiang
文章编号:
1672-6561(2015)03-0034-08
作者:
司国辉; 苏会平; 李玮娜; 李得成; 张超
西安地质矿产勘查开发院，陕西 西安 710100
Author(s):
SI Guo-hui;  SU Hui-ping;  LI Wei-na;  LI De-cheng;  ZHANG Chao
Xi’an Institute of Geological and Mineral Exploration, Xi’an 710100, Shaanxi, China
关键词:
地球化学; 蛇绿岩; 玄武岩; 晚古生代; 构造环境; 北天山; 新疆
Keywords:
geochemistry;  ophiolitic melange;  basalt;  Late Paleozoic;  tectonic setting;  North Tianshan;  Xinjiang
分类号:
P588.1
DOI:
-
文献标志码:
A
摘要:
中天山北缘断裂带北侧的北天山晚古生代蛇绿混杂岩带呈NWW—SEE向展布，新疆巴音沟蛇绿混杂岩是该带的重要组成部分和典型代表。在前人研究基础上，对巴音沟蛇绿混杂岩带的物质组成进行详细的野外地质填图和剖面测制，发现至少存在3种玄武质岩石：与变质橄榄岩及辉长岩等伴生的玄武质岩石、与火山碎屑岩及酸性火山岩伴生的玄武质岩石及分布于蛇绿混杂岩边部的玄武质岩石。地球化学特征显示它们分别对应MORB型、OIB型和CRB型等3种不同性质的玄武岩，表明巴音沟蛇绿混杂岩带物质组成、形成演化的复杂性。通过对巴音沟蛇绿混杂岩带两侧地质体的对比研究，认为巴音沟洋关闭于早石炭世末。
Abstract:
Late Paleozoic ophiolitic melange belt in North Tianshan, which locates in the north rim fault zone of Middle Tianshan, spreads in NWW-SEE direction. Bayingou ophiolitic melange is an important part and the typical representative of the belt. Based on the previous researches, the material composition of Bayingou ophiolitic melange belt was analyzed by the field geological mapping and section measuring. The results show that there are at least three kinds of basaltic rocks, including basaltic rock associated with metaperidotite and gabbro, basaltic rock associated with pyroclastic and acidic volcanic rocks, and basaltic rock in the margin of ophiolitic melange; the basaltic rocks correspond to MORB, OIB and CRB types of basalts, reflecting the complexity of formation and evolution of Bayingou ophiolitic melange belt. The comparison of geological bodies in the both sides of Bayingou ophiolitic melange belt shows that Bayingou ocean closes at the end of Early Carboniferous.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2014-09-24
基金项目:国家自然科学基金项目(41273033,41303027);中国地质调查局地质大调查项目(1212011120467)
作者简介:司国辉(1980-),男,山西石楼人,工程师,E-mail:398720068@qq.com。
更新日期/Last Update: 2015-05-27