JOURNAL OF PALAEOGEOGRAPHY ›› 2013, Vol. 15 ›› Issue (1): 69-76. doi: 10.7605/gdlxb.2013.01.007

• LITHOFACIES PALAEOGEOGRAPHY AND SEDIMENTOLOGY • Previous Articles     Next Articles

Feature of gravity flow deposit of the Zhuhai and Zhujiang Formations of Cenozoic in Huizhou area，Pearl River Mouth Basin

Qiao Bo1 Zhang Changmin1 Li Shaohua1 Du Jiayuan2 Zhu Rui1   

  1. 1 Key Laboratory of Oil and Gas Resources and Exploration of the Ministry of Education, Yangtze University, Jingzhou 434023, Hubei; 2 Shenzhen Branch, CNOOC, Guangzhou 510240, Guangdong
  • Received:2011-12-12 Revised:2012-11-14 Online:2013-02-01 Published:2013-02-01
  • About author:Qiao Bo，born in 1987，is a doctoral candidate in Yangtze University.Now he is mainly engaged in the researches of sedimentology and sequence stratigraphy.E-mail:qb123124@126.com. Tel:++86-0-13508612421. About the corresponding author Zhang Changmin，born in 1963，graduated from Research Institute of Petroleum Exploration & Development with a Ph.D.degree in 1983.Now he is a professor and doctoral advisor in Yangtze University，and is engaged in sedimentology，reservoir geology and development geology.E-mail: zcm@yangtzeu.edu.cn.

珠江口盆地惠州地区新生界珠海组和珠江组重力流沉积特征*

乔 博1 张昌民1 李少华1 杜家元2 朱 锐1   

  1. 1 长江大学油气资源与勘探技术教育部重点实验室，湖北荆州 434023; 2 中国海洋石油总公司深圳分公司，广东广州 510240
  • 作者简介:乔博，男，1987年生，长江大学博士研究生，研究方向为沉积学与层序地层学。通讯地址：湖北荆州长江大学东校区904信箱；邮政编码：434023。E-mail:qb123124@126.com。电话：13508612421。 通讯作者简介 张昌民，男，1963年生，教授，博士生导师。主要从事沉积学、储集层地质、开发地质的教学和科研。E-mail:zcm@yangtzeu.edu.cn。
  • 基金资助:
    国家“十二五”重大专项（编号：2011ZX05023-002-007）资助

RichHTML

PDF

Abstract: Gravity flow deposits were identified from the cores of Zhuhai and Zhujiang Formations of Cenozoic in Huizhou area, Pearl River Mouth Basin.Three types of the gravity flow deposits are classified in the study area，including slump deposits，liquefaction deposits and turbidity flow.Slump deposit is the most important one；water-escape structures are abundant in liquefaction deposits；turbidity flow deposit is characterized by incomplete Bouma sequences.The gravity flow deposits in Huizhou area are formed by slumping，transporting and depositing of the sandbody in delta front.Meanwhile，tidal influenced sediments are also presented in the gravity flow deposits.Tidal deposits are associated with gravity flow sediments.It is realized that there are some misunderstanding about gravity flow，such as equal the gravity flow to the turbidity flow simply，limit gravity flow in deep water area，abuse the Bouma sequence，and so on.So a new understanding about gravity flow is needed.

Key words: Pearl River Mouth Basin, Huizhou area, Zhuhai Formation, Zhujiang Formation, gravity flow, tidal

摘要： 通过2口井的岩心观察，在珠江口盆地惠州地区新生界珠海组和珠江组，发现有重力流沉积。该地区重力流沉积的主要特征是：滑塌构造发育广泛，是本区最主要的重力流沉积；液化沉积中泄水构造发育；浊流沉积中鲍马序列不完整。惠州地区的重力流沉积是三角洲前缘砂体垮塌再搬运沉积而形成的。在重力流沉积中还发现有潮汐作用的存在，潮汐作用和重力流沉积伴生。通过对惠州地区重力流沉积特征的研究，认为不能简单地将重力流沉积等同于浊流沉积；重力流沉积不仅局限在深水地区，在相对浅水地区也会发育。建议正确理解鲍马序列并予以合理使用。

关键词: 珠江口盆地, 惠州地区, 珠海组, 珠江组, 重力流, 潮汐

CLC Number: