白云凹陷水道几何形态研究

doi:10.11885/j.issn.1674-5086.2013.06.18.01

摘要/Abstract

摘要：

以珠江口盆地白云凹陷中的水道为例，对水道的几何形态展开研究，通过均方根振幅属性图确定水道的整体
形态，截取若干横截面刻画水道的内部结构，并测量水道的深度和宽度，计算宽深比。研究发现，在该地区发育有两种
几何形态的水道，21.0∼18.5 Ma 时期水道变宽变浅和10.5∼8.5 Ma 时期水道变窄变深。水道的形态首先受到古地貌的
控制，21.0∼18.5 Ma 时期和10.5∼8.5 Ma 时期不同的地貌环境对两个时期水道的发育有重要的影响。此外，沉积流体
的侵蚀能力也影响了水道的形态。在21.0 Ma 时海平面上升，并且远离沉积物源会导致水道中的沉积物供给降低，流
体侵蚀能力较小，故水道变宽变浅。在10.5 Ma 时由于东沙隆起抬升的影响，并靠近物源使得水道中沉积物更多地以
重力流形式向下搬运沉积，侵蚀能力较强，故水道变窄变深。水道几何形态研究对研究水道的整体演化过程有重要意
义，也有助于了解该地区的沉积条件。

关键词: 白云凹陷, 水道, 几何形态, 古地貌, 海平面变化

Abstract:

Taking the submarine channels in the Baiyun Sag as examples，we carried out the study of the geometry of the
submarine channels. We defined the shape of the submarine channels through RMS attribution map，described the internal
structure，measured the depth and width of the channels and calculated the width/depth ratio. Through these studies，we found
there are two types of submarine channels in the Baiyun Sag，Pearl River Mouth Basin. One type is wider and shallower in
21.0∼18.5 Ma，the other type narrower and deeper in 10.5∼8.5 Ma. The geometry of submarine channels are largely controlled
by the topography；different topographies in these two phases play an important role in the submarine channel development.
Besides，the erosion of the flow in the channels could influence the geometry of submarine channels. In 21.0 Ma，the sea-level
rises and the sediment supply decreases as the channel is far from the paleo-Pearl River Delta，so that the channel becomes
wider and shallower. In 10.5 Ma，as the Dongsha Uplift rose and the channel is close to the paleo-Pearl River Delta，so that the
sediment is transported in the form of the gravity flow，which leads to high erosion ability. Ultimately the submarine channel
becomes narrower and deeper. The research of the geometry of submarine channels is important in understanding the evolution
of the channels and helpful to explore the sedimentary condition of this area.

Key words: Baiyun Sag, submarine channel, geometry, topography, sea-level change

乔博1 *，张昌民1，李少华1，杜家元2，李向阳1，3. 白云凹陷水道几何形态研究[J]. 西南石油大学学报(自然科学版), DOI: 10.11885/j.issn.1674-5086.2013.06.18.01.

Qiao Bo1*, Zhang Changmin1, Li Shaohua1, Du Jiayuan2, Li Xiangyang1，3. Study of the Configuration of Two Types of Submarine Channels
in the Baiyun Sag，Pearl River Mouth Basin[J]. 西南石油大学学报(自然科学版), DOI: 10.11885/j.issn.1674-5086.2013.06.18.01.

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参考文献

[1] Kolla V，Posamentier H W，Wood L J. Deep-water

and fluvial sinuous channels—Characteristics，similarities

and dissimilarities，and modes of formation[J]. Marine

and Petroleum Geology，2007，24：388 – 405.

[2] Wynn R B，Cronin B T，Peakall J. Sinuous deep-water

channels：Genesis，geometry and architecture[J]. Marine

and Petroleum Geology，2007，24：341 – 387.

[3] 林畅松，刘景彦，蔡世祥，等. 莺—琼盆地大型下切谷

和海底重力流体系的沉积构成和发育背景[J]. 科学通

报，2001，46（1）：69 – 72.

Lin Changsong，Liu Jingyan，Cai Shixiang，et al. Deposition

composition and development background of

the incised-valley and seafloor gravity flow system in

Ying – Qiong Basin[J]. Chinese Science Bulletin，2001，

46（1）：69 – 72.

[4] 付彦辉. 琼东南盆地南部深水水道沉积体系及其油气

意义[D]. 北京：中国石油大学，2009：37 – 47.

[5] 苏明，李俊良，姜涛，等. 琼东南盆地中央峡谷的形

态及成因[J]. 海洋地质与第四纪地质，2009，29（4）：

85 – 93.

Su Ming，Li Junliang，Jiang Tao，et al. Morphological

features and formation mechanism of central canyon in

the Qiongdongnan Basin，northern south China Sea[J].

Marine Geology and Quaternary Geology，2009，29（4）：

85 – 93.

[6] 袁圣强. 南海北部陆坡区深水水道沉积体系研究[D].

北京：中国科学院海洋研究所，2009：9 – 27.

[7] 吕彩丽，吴时国，袁圣强. 深水水道沉积体系及地震识

别特征研究[J]. 海洋科学集刊，2010，50：40 – 49.

Lü Caili，Wu Shiguo，Yuan Shengqiang. Deepwater channel

complex sedimentary system and its seismic reflection

in Qiongdongnan Basin[J]. Studia Marine Sinica，2010，

50：40 – 49.

[8] 袁圣强，吴时国，姚根顺. 琼东南陆坡深水水道主控

因素及勘探应用[J]. 海洋地质与第四纪地质，2010，

30（2）：61 – 66.

Yuan Shengqiang，Wu Shiguo，Yao Genshun. The controlling

factors analysis of Qiongdongnan slope deepwater

channels and its significance to the hydrocarbon exploration[

J]. Marine Geology and Quaternary Geology，

2010，30（2）：61 – 66.

[9] 刘军，庞雄，颜承志，等. 南海北部陆坡白云深水区

浅层深水水道沉积[J]. 石油实验地质，2011，33（3）：

255 – 259.

Liu Jun，Pang Xiong，Yan Chengzhi，et al. Shallow deepwater

channels in Baiyun deepwater region of northern

continental slope，South China Sea[J]. Petroleum Geology

and Experiment，2011，33（3）：255 – 259.

[10] Martin J，Cantelli A，Paola C，et al. Quantitative modeling

of the evolution and geometry of incised valleys[J].

Journal of Sedimentary Research，2011，81：64 – 79.

[11] 王春修. 珠江口盆地海相中新统层序地层分析及其意

义[J]. 中国海上油气（地质），1996，10（5）：279 – 288.

Wang Chunxiu. Sequence stratigraphic analysis of marine

Miocene Formations in the Pearl River Mouth

Basin and its significance[J]. China Offshore Oil and

Gas（Geology），1996，10（5）：279 – 288.

[12] 施和生，李文湘，邹晓萍，等. 层序地层学在珠江口盆

地（东部）油田开发中的应用[J]. 中国海上油气（地质），

2000，14（1）：16 – 20.

Shi Hesheng，Li Wenxiang，Zou Xiaoping，et al. The application

of sequence stratigraphic in developing sandstone

oilfields in Eastern Pearl River Mouth Basin[J]. China

Offshore Oil and Gas（Geology），2000，14（1）：16 – 20.

[13] 祝彦贺. 珠江口盆地早中新世陆架–陆坡沉积系统构

成及储集体分布[J]. 西安石油大学学报：自然科学版，

2011，26（6）：1 – 8.

Zhu Yanhe. Composition and reservoir body distribution

of continental shelf – continental slope sedimentary system

in early Eocene in Pearl River Mouth Basin[J]. Journal of

Xi′an Shiyou University：Natural Science Edition，2011，

26（6）：1 – 8.

[14] 张忠涛，秦成岗，高鹏，等. 珠江口盆地白云凹陷北坡

陆架坡折带地质特征及其油气勘探潜力[J]. 天然气工

业，2011，31（5）：39 – 44.

Zhang Zhongtao，Qin Chenggang，Gao Peng，et al. Geological

characteristics and exploration potentials of the

shelf break zone on the north slope of the Baiyun Depression，

Pearl River Mouth Basin[J]. Natural Gas Industry，

2011，31（5）：39 – 44.

[15] 能源，吴景富，漆家福，等. 琼东南—珠江口盆地深

水区构造样式及其分布特征[J]. 天然气工业，2011，

31（8）：32 – 37.

Neng Yuan，Wu Jingfu，Qi Jiafu，et al. Structural styles

and distribution features in the deep water of the Pearl

River Mouth and Qiongdongnan Basins[J]. Natural Gas

Industry，2011，31（8）：32 – 37.

[16] Straub K M，Mohrig D C，Buttles J，et al. Interactions

between turbidity currents and topography in aggrading

sinuous submarine channels：A laboratory study[J]. Geological

Society of America Bulletin，2008，120（3/4）：

368 – 385.

[17] Twichell D C，Cross V A，Hanson A D，et al. Seismic

architecture and lithofacies of turbidites in Lake Mead

（Arizona and Nevada，USA），an analogue for topographically

complex basins[J]. Journal of Sedimentary Research，

2005，75（1）：134 – 148.

[18] Kane I A，Mccaffrey W D，Peakall J. Controls on sinuosity

evolution within submarine channels[J]. Geology，

2008，36（4）：287 – 290.

[19] Nordfjord S，Goff J A，Austin J A，et al. Seismic facies

of incised-valley fills，new jersey continental shelf：Implications

for erosion and preservation processes acting during

latest pleistocene-holocene transgression[J]. Journal of

Sedimentary Research，2006，76：1284 – 1303.

[20] Robert W，Wellner Louis R，Bartek. The effect of sea level，

climate，and shelf physiography on the development

of incised-valley complexes：A modern example from the

east china sea[J]. Journal of Sedimentary Research，2003，

73（6）：926 – 940.