甘肃省文县观音坝古地震事件的研究
|
摘要
通过野外调查在甘肃陇南的文县阳山金矿东北磨坝—观音坝一带首次发现一大套震碎砾岩,这套砾岩由于覆盖在白垩纪红色砾岩之下,故而一直把其当作白垩纪砾岩处理。通过作者参加该项目的研究后认为,是一套震碎角砾岩,这种震碎角砾岩,在国内外尚未见公开报道。它是地质历史上一次浅源强烈地震的岩石记录,反映了该地区一次重要的地震构造运动,同时本文对该地区的震积岩进行了沉积序列及岩石类型划分,这种观点对促进陕甘川地震历史的认知有重要的补充作用。
It is first time to discover a set of shatter conglomerate during the field investigation in Wenxian County of Gansu Province.The survey results support this shatter conglomerate is the rock record reflecting the strong earthquake of shallow source in this area,and overthrow the conclusion which this conglomerate was Cre-taceous conglomerate because this conglomerate underlain Cretaceous red conglomerate.
It is first time to discover a set of shatter conglomerate during the field investigation in Wenxian County of Gansu Province.The survey results support this shatter conglomerate is the rock record reflecting the strong earthquake of shallow source in this area,and overthrow the conclusion which this conglomerate was Cre-taceous conglomerate because this conglomerate underlain Cretaceous red conglomerate.
引文
[1]杜远生,韩欣.论震积作用和震积岩[J].地球科学进展,2000,(4):389-394
[2]乔秀夫,宋天锐,高林志,等.碳酸盐岩振动液化地震序列[J].地质学报,1994,68(1):16-32.
[3]贾松,彭军,等.国内震积岩研究现状[J].地质灾害与环境保,2006,3.
[4]梁定益,聂泽同,宋志敏,等.正在萌芽段的震积地层学[J].高校地质学报,1997,3(4):458-461.
[5]程建生,周会武.等.甘肃文县上震旦统重力流沉积及其构造古地理意义[J].甘肃地质学报,1993(1).
[2]乔秀夫,宋天锐,高林志,等.碳酸盐岩振动液化地震序列[J].地质学报,1994,68(1):16-32.
[3]贾松,彭军,等.国内震积岩研究现状[J].地质灾害与环境保,2006,3.
[4]梁定益,聂泽同,宋志敏,等.正在萌芽段的震积地层学[J].高校地质学报,1997,3(4):458-461.
[5]程建生,周会武.等.甘肃文县上震旦统重力流沉积及其构造古地理意义[J].甘肃地质学报,1993(1).
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心