西藏康玉地区拉贡塘组的重力流沉积

GRAVITY FLOW DEPOSITS IN THE LAGONGTANG FORMATION OF THE KANGYU REGION,XIZANG

Regional Geological Survey Party, Sichuan Bureau of Geology and Mineral Resources

摘要: 康玉地区中、晚侏罗世发育一套非同寻常的重力流沉积(拉贡塘组),主要有颗粒流、泥石流及浊流沉积三种类型。属次深海一深海(斜坡—盆底)环境,由断裂活动引起的岩崩、滑塌、块体流、浊流等的沉积产物。
- 拉贡塘组 /
- 重力流沉积 /
- 滑塌岩块
Abstract: A complex suite of gravity flow deposits in the Lagongtang Formation is well devel-oped in the Middle and Late Jurassic strata in the Kangyu region,Xizang.These gravity flow deposits consist of the grain flow,debris flow and turbidity current deposits,and may be interpreted as the products of rockfall,slumping mass flow and turbidity currents trig-gered by faulting in the bathyal-abyssal (slope-basin floor) environments.
- Lagongtang Formation /
- gravity flow deposits /
- olistolith