西南石油大学学报(自然科学版) ›› 1988, Vol. 10 ›› Issue (1): 85-96.DOI: 10.3863/j.issn.1000-2634.1988.01.009

• 论文 • 上一篇    下一篇

廊固凹陷固安-旧州地区沙三-42下段重力流沉积特征

钟大康   

  1. 石油勘探系
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:1988-02-20 发布日期:1988-02-20

FEATURES OF GRAVITY FLOW SEDIMENTS OF LOWER S34-2 SECTION IN GUAN-JIUZHOU REGION, LONGFANG-GUAN DEPRESSION

Zhong Dakang   

  • Received:1900-01-01 Revised:1900-01-01 Online:1988-02-20 Published:1988-02-20

摘要: 本文根据沉积物的主要支撑机制在廊固凹陷固安——旧州地区识别出了泥石流、碎屑流、颗粒流和浊流四种重力流沉积物类型,并对各种类型的沉积物特征、纵横向演化规律以及砂体的空间展布作了进一步的探讨,结合区域地质背景建立了本区重力流沉积模式。

关键词: 泥石流, 碎屑岩, 颗粒岩, 浊流, 演化, 沉积模式

Abstract: Longfang-Guan depression is located in the north part of Jizhong Graben where the North China oil-field lies. It is a monofault and dustpan- shaped basin formed during the end of Mesozoic.In the steep side of the basin(i.e.Guan--Jiuzhou region),a trench face gravity flow deposition with the feature of a fan shape arises.From the observation of the core and mainsupport mechanism of sediments,gravity flows in this area can be classified into debris flow, grain flow and turbidity current.