摘要
秦岭刘岭群为一套碎屑岩、泥质岩夹碳酸盐岩沉积。陕西山阳地区的刘岭群包括中泥盆统牛耳川组、池沟组和青石垭组,上泥盆统下东沟组和桐峪寺组。其中青石垭组发育一套风暴岩,主要形成于浅海陆棚地区。桐峪寺组发育颗粒流沉积和浊流沉积,具有海底扇沉积的特征。冬种迹象表明,刘岭群应属扬子板块北部的稳定大陆边缘沉积。
The Liuling Group in the Qinling is a suit of fine-clastic rocks, pclites interbedded with carbonates sediments. The Liuling Group of Shanyang region in Shaanxi Province includes middle Devonian Niuerchuan Formation, Chigou Formation and Qingshiyya Formation. Among them, the Qingshiya Formation developed a suit of tempestites which were deposited mainly on the shallow sea sheif area. The Tongyusi Formation which possessed the features of submarine fans deposits developed grain flows and turbidite current deposition.There are various indications that the Liuling Group belongs to the stable continental margin deposits of the north of the Yangtse plate.
出处
《西北大学学报（自然科学版）》
CAS
CSCD
1991年第1期95-99,共5页
Journal of Northwest University（Natural Science Edition）
基金
国家科学基金
关键词
风暴沉积
海底扇沉积
颗粒流
浊流
The Qinling orogenic belt
Storm-deposits
Grain flows
Turbidite current
Submarine fans
