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引用本文:雷卞军1 唐 楷2 邓 超2 蔡正旗1 王身建3 赵永刚1. 四川广安市响水飞仙关组剖面特征及地质意义[J]. 中国地质, 2007, 34(1): 66-72.
LEI Bian-jun1, TANG Kai2, DENG Chao2, CAI Zheng-qi1, WANG Shen-jian3, ZHAO Yong-gang1. Characteristics of the section of the Feixianguan Formation at Xiangshui Village, Guang'an, Sichuan, and its geological significance[J]. Geology in China, 2007, 34(1): 66-72(in Chinese with English abstract).
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四川广安市响水飞仙关组剖面特征及地质意义
雷卞军1 唐 楷2 邓 超2 蔡正旗1 王身建3 赵永刚11,2,3
1. 西南石油大学, 四川 成都 610500;2.中国石油西南油气田分公司重庆气矿,重庆 400021;3.四川石油管理局地球物理勘探公司, 四川 成都 610213
摘要:
提要:四川省广安市桂兴镇响水村下三叠统飞仙关组地质剖面,位于华蓥山背斜的西翼,其古地理位置位于早三叠世川东碳酸盐台地西侧。对该剖面的详细研究,有利于恢复飞仙关期川东碳酸盐台地西侧的沉积演化过程。响水剖面飞仙关组一段属于半局限浅海陆棚和开阔台地含泥灰岩沉积。飞仙关组二段下部为碳酸盐台地西缘斜坡相及开阔台地相;其上部为较稳定的开阔台地沉积。飞仙关组三段是碳酸盐台缘鲕滩和开阔台地沉积。飞仙关组四段属于典型的混积台地潮坪沉积。川东碳酸盐台地西侧飞仙关组由两个向上变浅的沉积旋回组成,第2个沉积旋回是碳酸盐台地向西增生和鲕滩发育的主要时期。
关键词:  飞仙关组  野外剖面  碳酸盐台地  鲕滩
DOI:
分类号:
基金项目:四川省重点学科建设项目(SZD0414)资助。
Characteristics of the section of the Feixianguan Formation at Xiangshui Village, Guang'an, Sichuan, and its geological significance
LEI Bian-jun1, TANG Kai2, DENG Chao2, CAI Zheng-qi1, WANG Shen-jian3, ZHAO Yong-gang11,2,3
1. Southwest Petroleum University, Chengdu 610500, Sichuan, China;2. Chongqing Gas Field, Southwest Oil and Gas Field Branch, Sinopec, Chongqing 300021, China;3. Geophysical Exploration Company, Sichuan Petroleum Administration, Sinopec, Chengdu 610213, Sichuan, China
Abstract:
Abstract:The geological section of the Lower Triassic Feixianguan Formation at Xiangshui Village, Guang'an City, Sichuan Province, is tectonically located in the western limb of the Huaying Mountain anticline and was paleogeographically located on the western side of the Early Triassic eastern Sichuan carbonate platform. Studying this section in detail is favorable to the reconstruction of the sedimentary history of the western side of the carbonate platform. The First Member of the Feixianguan Formation consists of semi-restricted neritic shelf facies and open platform facies deposits with marlstone. The lower part of the Second Member of the Feixianguan Formation is slope facies on the western margin of carbonate platform facies and open platform facies, while its upper part is relatively stable open platform deposits. The Third Member of the Feixianguan Formation consists of oolitic bank and open platform deposits, and the Fourth Member of the Feixianguan Formation belongs to diamictic tidal flat deposits. The Feixianguan Formation on the western side of the eastern Sichuan carbonate platform comprises two upward-shallowing depositional cycles. The second depositional cycle was the main period of westward accretion of the carbonate platform and development of oolitic banks.
Key words:  Feixianguan Formation  field section  carbonate platform  oolitic bank