菲律宾海深水环境下浅地层沉积特征分析

方中华; 李攀峰; 杨源; 杨慧良; 陆凯; 杨佳佳; 单瑞

doi:10.12284/hyxb2022017

菲律宾海深水环境下浅地层沉积特征分析

doi: 10.12284/hyxb2022017

方中华^{1, 3,},
李攀峰^{1, 3},
杨源^{1, 3, ,},
杨慧良²,
陆凯^{1, 3},
杨佳佳^{1, 3},
单瑞^{1, 3}

1.
中国地质调查局青岛海洋地质研究所，山东青岛 266071
2.
中国地质调查局烟台海岸带地质调查中心，山东烟台 264003
3.
青岛海洋科学与技术试点国家实验室海洋矿产资源评价与探测技术功能实验室，山东青岛266237

基金项目: 中国地质调查局项目（DD20191003）

详细信息

作者简介:
方中华（1982－），男，高级工程师，主要从事海洋地质地球物理调查与研究工作。E-mail：fzhouc@sina.com

通讯作者:
杨源（1979－），男，高级工程师，主要从事海洋地质地球物理调查与研究工作。E-mail：qimg829@126.com

中图分类号: P736.21
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- 被引次数: 0
出版历程
- 收稿日期: 2021-03-01
- 修回日期: 2021-09-29
- 刊出日期: 2022-03-18

Analysis on sedimentary characteristics of shallow strata in deep water environment of Philippine Sea

Fang Zhonghua^{1, 3
,},
Li Panfeng^{1, 3},
Yang Yuan^{1, 3
, ,},
Yang Huiliang²,
Lu Kai^{1, 3},
Yang Jiajia^{1, 3},
Shan Rui^{1, 3}

1.
Qingdao Institute of Marine Geology, China Geological Survey, Qingdao 266071, China
2.
Yantai Center of Coastal Zone Geological Survey, China Geological Survey, Yantai 264003, China
3.
Laboratory for Marine Mineral Resources, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, China

摘要

摘要: 本文依托菲律宾海浅地层剖面资料，结合前人已发表的该区域样品资料和钻孔资料，对九州−帕劳海脊以及与海脊相邻的西菲律宾海盆和帕里西维拉海盆浅层沉积物特征进行了初步研究。研究认为海底以下浅层沉积物一般存在3个波阻抗界面，根据其反射特征划分为4个基本类型，并对剖面特征的成因进行了初步探讨，认为在沉积物的沉积过程中，沉积物供给、构造活动、地形以及水动力条件等都对深水沉积起到了重要的作用。本文通过对菲律宾海浅地层沉积特征和控制因素的分析，可为进一步开展菲律宾海深水浅层沉积物研究提供参考。
- 菲律宾海 /
- 浅地层 /
- 沉积特征 /
- 深水沉积 /
- 沉积机理
Abstract: Based on the data of Philippine shallow strata profile, combined with the sample data and borehole data in this area, this paper has a preliminary understanding of the shallow sediment characteristics of Kyushu-Palau Ridge and the West Philippine Basin and Parisi Vera Basin adjacent to the ridge. There are generally three wave impedance interfaces below the seabed, and the reflection characteristics of the shallow stratum profile are divided into four basic types. The causes of the profile characteristics are preliminarily discussed. It is believed that the sediment supply, tectonic activities, topography and hydrodynamic conditions play an important role in the deep-water sedimentation during the sedimentation process. Besides being influenced by the main control factors, most of them are also superimposed with the transformation effects of various factors in the later period. In this paper, the sedimentary characteristics and controlling factors of shallow strata in Philippine Sea are analyzed, which can provide useful reference for further study of deep shallow sediments in Philippine Sea.
- Philippine Sea /
- shallow strata /
- sedimentary characteristics /
- deep water deposition /
- sedimentation mechanism

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图 1 研究区域位置（a）及剖面位置（b）示意图

Fig. 1 Location of study area (a) and profile position (b)

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图 2 调查区划分的SU1～SU3声学地层单元及界面

Fig. 2 SU1−SU3 acoustic stratigraphic unit and interface divided by survey area

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图 3 类型I典型剖面

Fig. 3 Typical section of type I

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图 4 类型II典型剖面

Fig. 4 Typical section of type II

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图 5 类型III典型剖面

Fig. 5 Typical section of type III

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图 6 类型IV典型剖面

Fig. 6 Typical section of type IV

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图 7 火山脊相间盆地沉积典型剖面

Fig. 7 Typical sedimentary section of volcanic ridge interphase basin

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图 8 低洼区域典型剖面

Fig. 8 Typical section of low-lying area

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图 9 海山区域典型剖面

Fig. 9 Typical section of seamount region

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图 10 典型剖面的断层显示

Fig. 10 Fault display of a typical section

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图 11 小坡度典型剖面

Fig. 11 Typical section with small slope

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图 12 中坡度典型剖面

Fig. 12 Typical section with medium slope

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图 13 大坡度典型剖面

Fig. 13 Typical section with large slope

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图 14 沉积物波和环槽典型剖面

Fig. 14 Typical section of sediment wave and ring groove

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表 1 调查区浅地层剖面地层单元划分

Tab. 1 Stratigraphic unit division of shallow formation section in the survey area

地层层序				地震相特征		层速度/(m·s⁻¹)
底界面	单元	顶	底	内部反射特征	地震相外形特征	层速度/(m·s⁻¹)
T1	SU1	平行/削截	平行	平行反射，低频，强震幅，内部部分空白反射	席状	1 520
T2	SU2	平行	平行	平行反射，低频，强震幅，内部多期沉积	席状	1 560
T3	SU3	平行	平行	平行反射，局部杂乱反射	席状	1 600

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