干旱区生态环境知识资源中心(Arid): 准噶尔盆地克拉玛依油田三叠系克下组洪积砾岩特征及洪积扇演化

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	准噶尔盆地克拉玛依油田三叠系克下组洪积砾岩特征及洪积扇演化
其他题名	Conglomerate characteristics and alluvial fan evolution of the Triassic Lower Karamay Formation in Karamay Oilfield,Junggar Basin
	余宽宏 1; 金振奎 2; 李桂仔 2; 何苗 2; 郭秀娟 2; 杨婷 2
来源期刊	古地理学报
ISSN	1671-1505
出版年	2015
卷号	17 期号:2 页码:143-159
中文摘要	通过岩心观察,将克拉玛依油田三叠系克下组砾岩分为杂基支撑角砾岩(砾石成分同基岩)、弱胶结砾岩(严格意义上未胶结成岩)、泥质杂基支撑砾岩、砂砾质支撑砾岩和分选极好的细砾岩几种类型。通过岩心岩石特征与现代洪积扇沉积物特征对比,确定了每一类砾岩的形成环境。克下组沉积早期,气候干旱,洪积扇为干旱型,可与现代扎伊尔山山麓洪积扇(堆)沉积物特征相类比。克下组沉积后期气候变得潮湿,洪积扇类型逐渐转变为以河流作用为主,可与阜康市白杨河洪积扇沉积物特征相类比。克下组洪积扇在垂向上为向扎伊尔山后退的沉积序列。
英文摘要	Based on core observation,five types of conglomerates are divided in the Triassic Lower Karamay Formation,Karamay Oilfield,i.e., the matrix-supported breccias,weak-cemented conglomerates(strictly speaking,this type is still uncemented),mud-supported conglomerates,sand-supported conglomerates and well sorted granule-conglomerates. Compared to the sediments of modern alluvial fans,the depositional environment of each conglomerate in the Lower Karamay Formation can be determined as following:in the early stage,due to all arid climate,the conglomerates have similar characteristics to that of modern arid alluvial fans in Zaier Mountain area. However,in the late stage a humid climate prevailed, and the fluvial process become dominant, with the deposited conglomerates showing similar characteristics to that of Baiyanghe alluvial fans in Fukang. So,vertically,the alluvial fans showed a retrogradational sequence towards the ancient Zaier Mountain.
中文关键词	克拉玛依油田 ; 三叠系 ; 克下组 ; 洪积扇 ; 砾岩
英文关键词	Karamay Oilfield Triassic Lower Karamay Formation alluvial fans conglomerates
语种	中文
国家	中国
收录类别	CSCD
WOS类目	GEOLOGY
WOS研究方向	Geology
CSCD记录号	CSCD:5390132
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/232840
作者单位	1.中国石油大学(华东)地球科学与技术学院, 青岛, 山东 266580, 中国; 2.中国石油大学(北京)地球科学学院, 北京 102249, 中国
推荐引用方式 GB/T 7714	余宽宏,金振奎,李桂仔,等. 准噶尔盆地克拉玛依油田三叠系克下组洪积砾岩特征及洪积扇演化[J],2015,17(2):143-159.
APA	余宽宏,金振奎,李桂仔,何苗,郭秀娟,&杨婷.(2015).准噶尔盆地克拉玛依油田三叠系克下组洪积砾岩特征及洪积扇演化.古地理学报,17(2),143-159.
MLA	余宽宏,et al."准噶尔盆地克拉玛依油田三叠系克下组洪积砾岩特征及洪积扇演化".古地理学报 17.2(2015):143-159.