[1]宋旭波.酒西盆地始新世火燒溝組砂巖碎屑組分特征及其地質意義[J].華東地質,2017,38(02):99-107.[doi:10.16788/j.hddz.32-1865/P.2017.02.003]
 SONG Xu-bo.Characteristics of sandstone detrital components of the Eocene Huoshaogou Formation in the Jiuxi basin and its geological implications[J].East China Geology,2017,38(02):99-107.[doi:10.16788/j.hddz.32-1865/P.2017.02.003]
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酒西盆地始新世火燒溝組砂巖碎屑組分特征及其地質意義()
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《華東地質》[ISSN:2096-1871/CN:32-1865/P]

卷:
38
期數:
2017年02期
頁碼:
99-107
欄目:
基礎地質
出版日期:
2017-06-15

文章信息/Info

Title:
Characteristics of sandstone detrital components of the Eocene Huoshaogou Formation in the Jiuxi basin and its geological implications
文章編號:
2096-1871(2017)02-099-09
作者:
宋旭波
(成都理工大學地球科學學院,成都 610059)
Author(s):
SONG Xu-bo
(College of Earth Science, Chengdu University of Technology, Chengdu 610059, China)
關鍵詞:
巖屑 石英 長石 砂巖碎屑 火燒溝組 酒西盆地
Keywords:
rock fragments quartz feldspar sandstone fragments Huoshaogou Formation Jiuxi basin
分類號:
P588.21
DOI:
10.16788/j.hddz.32-1865/P.2017.02.003
文獻標志碼:
A
摘要:
酒西盆地位于阿爾金左旋走滑斷裂和北祁連斷裂相交的三角地區,對研究青藏高原北緣新生代早期構造—沉積演化具有重要意義。通過研究酒西盆地紅柳峽剖面和火燒溝剖面始新統火燒溝組砂巖碎屑組分類型、形態及石英陰極發光特征,發現大量巖屑、長石和石英顆粒具有明顯的變質巖來源特征,認為火燒溝組物源為變質巖。結合酒西盆地地質構造背景及盆地NW向古水流特征,通過系統分析該盆地周緣可提供物源的高點(阿爾金山、祁連山)區域巖性特征,認為酒西盆地火燒溝組物源來自阿爾金山,推測阿爾金左旋走滑斷裂的斷距應>450 km。
Abstract:
The Jiuxi basin is located within the triangle area which is surrounded by the North Qilian fault to southwest and Altyn Tagh fault to northwest, and is of an important significance in understanding the Cenozoic tectonic-sedimentary evolution of the northern Tibetan Plateau. In this paper, we carried out a detailed study of sandstones of the Eocene Huoshaogou Formation in the Hongliuxia and Huoshaogou sections, using detrital components, morphology and cathodoluminescence of quartzs. The results show that the rock fragments, quartze detritals and feldspar detritals of the sandstone from the Huoshaogou Formation are typical characteristics of the metamorphic rocks origin. In combination with the geological, structural background and palewater features of the Jiuxi basin, this study systematically analyzed the regional rock features of Altyn and Qilian mountains, which provided the materials for studying the Huoshaogou Formation in the Jiuxi basin. It can be concluded that the provenance of the Huoshaogou Formation in the Jiuxi basin might derive from the Altun Mountains, and the offset of the Altyn left-lateral strike-slip fault should be more than 450 km.

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備注/Memo

備注/Memo:
*收稿日期:2016-07-12 修訂日期:2016-09-29 責任編輯:譚桂麗
第一作者簡介:宋旭波,1992年生,男,碩士研究生,主要從事礦物學、巖石學和礦床學研究。
更新日期/Last Update: 2017-06-16
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