论文部分内容阅读
一、分布及与上下岩层的接触关系南沱组冰碛岩在黄陵背斜地区分布广泛,于震旦纪地层出露地区多可见及,但其发育不甚稳定。以其沉积发育状况大致可以背斜西翼的黄家河至背斜东翼的牛坪的北西方向连线划分为二区:北线以南地区冰碛岩的沉积厚度稳定于60—110米间;以北地区突减到10米以下,以至尖灭。冰碛岩发育最厚的地方是在庙河一带,厚达110米。向东至秋千坪厚69.4米,到莲沱厚67.3米。向北,背斜西翼的黄家河一带厚度变化急剧,由60米减到3米。再北至两河口厚1—8米,水月寺厚0—1.3米,到北端的白果园厚0—3.4米,殷家坪附近消失不见。
First, distribution and contact with the upper and lower strata The moraine rocks of the Nantuo Formation are widely distributed in the Huangling anticline and are more visible in the exposed areas of the Sinian strata. However, their development is not stable. Its sedimentary development can be roughly divided into two zones by connecting the Huangjiahe anticline west wing to the northwest direction of the Niuping east wing of the anticline: the sedimentary thickness of the moraine rocks in the area to the south of the northern line is stable at between 60 and 110 meters; The area north to 10 meters below the sudden drop, as well as extinction. Moraine rock is the thickest place in the Miaohe area, up to 110 meters thick. To the east of the swing is 69.4 meters thick, to the thick Lotus 67.3 meters. To the north, the thickness of the Huangjiahe area in the west wing of the anticline has rapidly changed from 60 meters to 3 meters. Then north to two estuaries thick 1-8 meters, Shuiyue Temple thick 0-1.3 meters, to the north end of the white orchard 0-3.4 meters thick, disappeared near Yinjiaping.