南海西部深水区中新世断控台缘生物礁生长演化

黄鸿光; 杜学斌; 陆永潮; 陈平

doi:10.11781/sysydz201501035

南海西部深水区中新世断控台缘生物礁生长演化

doi: 10.11781/sysydz201501035

1.
中国地质大学资源学院, 武汉 430074
2. 中海石油有限公司湛江分公司, 广东湛江 524057

基金项目: 国家自然科学基金青年科学基金项目(41202086)资助.

详细信息

作者简介:
黄鸿光(1969-),男,高级经济师,从事地震沉积学研究.E-mail: huanghg3@cnooc.com.cn.

中图分类号: TE122.2⁺4
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- 被引次数: 0
出版历程
- 收稿日期: 2014-04-25
- 修回日期: 2014-12-12
- 刊出日期: 2015-01-28

Reef evolution on a fault-controlled Miocene platform margin, western deep water area of South China Sea

1.
Resource Faculty, China University of Geosciences, Wuhan, Hubei 430074, China
2. CNOOC Zhanjiang Branch, Zhanjiang, Guangdong 524057, China

摘要

摘要: 南海具有优良的成礁条件,但受限于资料品质,礁体结构刻画并不精细.借助新获取的高品质3D地震数据,利用地质—地球物理精细刻画技术,对南海西部深水区南部隆起断控台缘型生物礁进行了精细解剖.研究认为,礁体多具独立生长的丘状或透镜状外形,其内部礁脊和礁沟清晰可辨,垂向结构上以加积型和进积型为主.空间上,依据礁体的生长过程可归结为追补型、并进型和快步型3种类型,追补型生物礁生长速率较慢,且向陆退积生长,并进型和快步型生物礁生长速率较快,以垂直加积生长为主.礁体的空间展布形态与生长速度受海平面升降、可容纳空间变化和古地貌形态联合控制.
- 生物礁 /
- 深水区 /
- 台缘 /
- 礁体结构 /
- 生长演化 /
- 中新统 /
- 南海西部
Abstract: In the South China Sea, there were favorable conditions for reef development. However, the reef structure was not precisely described due to the lack of high-quality seismic data. Geologic and geophysical analyses were used to study the reefs in the fault-controlled margin of the southern uplift of the western deep-water area in the South China Sea. The reefs showed hummocky or lenticular shape, and the internal reef crest and reef ditch were observed clearly. Vertically, the reef structure displayed aggradational and progradational characteristics. There were three types of reef identified according to their growth speed, including slow-growth, constant-growth and fast-growth ones. For the first type, reefs grew slowly and retrograded to continents. For the other two types, reefs grew fast and aggraded vertically. The spatial distribution and growth speed of reefs were controlled by sea level changes, space changes and ancient morphology.
- reef /
- deep-water area /
- platform margin /
- reef structure /
- generation and evolution /
- Miocene /
- west of South China Sea

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参考文献(18)

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