莺歌海盆地新近纪以来古构造地貌恢复

肖坤泽; 童亨茂; 杨东辉; 李绪生; 范彩伟; 张宏祥; 黄磊

doi:10.11781/sysydz202002215

莺歌海盆地新近纪以来古构造地貌恢复

doi: 10.11781/sysydz202002215

肖坤泽^{1, 2,},
童亨茂^{1, 2, ,},
杨东辉^{1, 2, 3},
李绪生⁴,
范彩伟⁴,
张宏祥^{1, 2},
黄磊^{1, 2}

1.
中国石油大学(北京) 油气资源与探测国家重点实验室, 北京 102249
2.
中国石油大学(北京) 地球科学学院, 北京 102249
3.
河北省地震局承德中心台, 河北承德 067000
4.
中海石油(中国)有限公司湛江分公司, 广东湛江 524057

基金项目:

国家油气重大专项 2016ZX05024-005-004

国家自然科学基金项目 41272160

详细信息

作者简介:
肖坤泽(1995-), 男, 硕士研究生, 从事构造地质学研究。E-mail: x_kunze@163.com

通讯作者:
童亨茂(1967-), 男, 教授, 从事盆地构造分析研究和教学工作。E-mail: tonghm@cup.edu.cn

中图分类号: TE121.2
计量
- 文章访问数: 737
- HTML全文浏览量: 122
- PDF下载量: 160
- 被引次数: 0
出版历程
- 收稿日期: 2019-10-24
- 修回日期: 2020-01-22
- 刊出日期: 2020-03-28

Restoration of Neogene paleo-geomorphology of Yinggehai Basin

XIAO Kunze^{1, 2
,},
TONG Hengmao^{1, 2
, ,},
YANG Donghui^{1, 2, 3},
LI Xusheng⁴,
FAN Caiwei⁴,
ZHANG Hongxiang^{1, 2},
HUANG Lei^{1, 2}

1.
State Key Laboratory of Petroleum Resource and Prospecting, China University of Petroleum(Beijing), Beijing 102249, China
2.
College of Geosciences, China University of Petroleum(Beijing), Beijing 102249, China
3.
Chengde Central Seismic Station, Hebei Earthquake Agency, Chengde, Hebei 067000, China
4.
Zhanjiang Branch, CNOOC, Zhanjiang, Guangdong 524057, China

摘要

摘要: 新近系三亚组和梅山组是莺歌海盆地烃源岩发育的重要层系，研究其古构造地貌是预测烃源岩分布和油气资源潜力的基础。应用“构造应力体制保持不变的情况下，盆地内古构造地貌继承性发育”的思想，在确定莺歌海盆地新近纪构造变形应力体制及其演化的基础上，应用“将今论古”和“比例补偿”的思想和方法，分别以盆地现今地貌特征和地层厚度分布为基础资料，并以单井资料确定局部古海水深度作为约束条件，恢复莺歌海盆地新近纪的古构造地貌（古海水深度）。指出莺歌海盆地在三亚组和梅山组沉积时期是半封闭的局限海湾环境，有利于烃源岩的发育；提出古构造地貌研究的新方法——比例补偿法，可应用于其他盆地古构造地貌的恢复。
- 应力体制 /
- 古构造地貌 /
- 古海水深度 /
- 比例补偿 /
- 莺歌海盆地
Abstract: The Neogene Sanya and Meishan formations are important sequences of source rocks in the Yinggehai Basin. Understanding the paleo-tectonic geomorphology is an important basis for predicting the distribution of source rocks and the potential of oil and gas resources. Based on the rule that "the paleo-tectonic environment develops in the inherited way when tectonic stress system remains unchanged", we applied the idea and method of "the present is the key to the past" and "proportional compensation" to interpret the Neogene tectonic deformation system and its evolution in the Yinggehai Basin. The current geomorphological features and stratigraphic thickness distribution were used with the paleo-sea depth determined from single well data as a constraint to restore the Neogene paleo-geomorphology of the Yinggehai Basin. The Yinggehai Basin was a semi-enclosed confined bay during the deposition of the Sanya and Meishan formations, which was conducive to the development of source rocks. The "proportional compensation" method, which is a new way for paleo-geomorphology restoration, can be applied in other basins.
- stress system /
- paleo-tectonic geomorphology /
- paleo-sea depth /
- proportional compensation /
- Yinggehai Basin

HTML全文

图 1 莺歌海盆地区域构造纲要

据参考文献[23]修改。

Figure 1. Tectonic units of the Yinggehai Basin

下载: 全尺寸图片幻灯片

图 2 莺歌海盆地构造演化阶段划分

剖面位置见图 1AA’。

Figure 2. Tectonic evolution stages of Yinggehai Basin

下载: 全尺寸图片幻灯片

图 3 莺歌海盆地T27界面之上陆架—陆坡坡折带特征

剖面位置见图 1的BB’，据文献[23]修改。

Figure 3. Continental shelf-slope break belt above T27 seismic reflecting interface in Yinggehai Basin

下载: 全尺寸图片幻灯片

图 4 莺歌海盆地现今(a)和上新世时期(b)海水深度

Figure 4. Seawater depth of present day (a) and during Pliocene (b) in Yinggehai Basin

下载: 全尺寸图片幻灯片

图 5 莺歌海盆地莺歌海组地层厚度

Figure 5. Stratigraphic thickness of Yinggehai Formation in Yinggehai Basin

下载: 全尺寸图片幻灯片

Figure 6. Relationship between paleo-seawater depth and sedimentary thickness in Yinggehai Basin

下载: 全尺寸图片幻灯片

图 7 莺歌海盆地晚中新世(黄流组)(a)、中中新世(梅山组)(b)和早中新世(三亚组)(c)古海水深度

Figure 7. Paleo-seawater depth in Yinggehai Basin during late Miocene (Huangliu period) (a), middle Miocene (Meishan period) (b) and early Miocene (Sanya period) (c)

下载: 全尺寸图片幻灯片

表 1 莺歌海盆地构造演化阶段

Table 1. Tectonic evolution of the Yinggehai Basin

表 2 莺歌海盆地中新世时期古海水深度与地层厚度的关系

Table 2. Relationship between paleo-seawater depth and stratigraphic thickness in Yinggehai Basin during Miocene

地层	水深范围/m	水深平均值/m	地层厚度/m	比例补偿系数
黄流组	25~148	78	600	15/17
梅山组	25~154	51	900	18/19
三亚组	25~50	32	200	10/11

下载: 导出CSV

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