scholarly journals The interactions of volcanism and clastic sedimentation in rift basins: insights from the Palaeogene‐Neogene Shaleitian uplift and surrounding sub‐basins, Bohai Bay Basin, China

2021 ◽  
Author(s):  
Hehe Chen ◽  
Xiaomin Zhu ◽  
Robert L. Gawthorpe ◽  
Lesli J. Wood ◽  
Qianghu Liu ◽  
...  
Keyword(s):  
Bohai Bay ◽  
Rift Basins ◽  
Bohai Bay Basin

scholarly journals Evaluation methodology of lithologic exploration areas in rift basins: A case from the Bohai Bay Basin

2011 ◽  
Vol 38 (1) ◽  
pp. 122-128 ◽  
Author(s):  
Wang Yuman ◽  
Huang Xu'nan ◽  
Cheng Kunfang ◽  
Huang Jinliang
Keyword(s):  
Evaluation Methodology ◽  
Bohai Bay ◽  
Rift Basins ◽  
Bohai Bay Basin

Seismic-based sediment provenance analysis in continental lacustrine rift basins: An example from the Bohai Bay Basin, China

AAPG Bulletin ◽  
2014 ◽  
Vol 98 (10) ◽  
pp. 1995-2018 ◽  
Author(s):  
Hongtao Zhu ◽  
Xianghua Yang ◽  
Keyu Liu ◽  
Xinhuai Zhou
Keyword(s):  
Sediment Provenance ◽  
Bohai Bay ◽  
Provenance Analysis ◽  
Rift Basins ◽  
Bohai Bay Basin

Underpressure characteristics and origins in the deep strata of rift basins: A case study of the Huimin Depression, Bohai Bay Basin, China

2019 ◽  
Vol 55 (6) ◽  
pp. 4079-4096
Author(s):  
Qiaochu Wang ◽  
Dongxia Chen ◽  
Fuwei Wang ◽  
Jinheng Li ◽  
Wenhao Liao ◽  
...  
Keyword(s):  
Bohai Bay ◽  
Rift Basins ◽  
Bohai Bay Basin ◽  
Deep Strata ◽  
Huimin Depression

scholarly journals Material Exchange and Migration between Pore Fluids and Sandstones during Diagenetic Processes in Rift Basins: A Case Study Based on Analysis of Diagenetic Products in Dongying Sag, Bohai Bay Basin, East China

Geofluids ◽  
2018 ◽  
Vol 2018 ◽  
pp. 1-20
Author(s):  
W. Meng ◽  
J. H. Zeng ◽  
Z. Cao ◽  
G. Q. Song ◽  
Y. S. Wang ◽  
...  
Keyword(s):  
East China ◽  
Bohai Bay ◽  
Pore Fluids ◽  
Rift Basins ◽  
Bohai Bay Basin ◽  
Thin Sections ◽  
Dongying Sag ◽  
Clastic Rocks ◽  
And Migration ◽  
Material Exchange

The exchange and migration of basin materials that are carried by pore fluids are the essence of diagenesis, which can alter physical properties of clastic rocks as well as control formation and distribution of favorable reservoirs of petroliferous basins. Diagenetic products and pore fluids, resulting from migration and exchange of basin materials, can be used to deduce those processes. In this study, 300 core samples from 46 wells were collected for preparation of casting thin sections, SEM, BSE, EDS, inclusion analysis, and isotope analysis in Dongying Sag, Bohai Bay Basin, East China. Combined with geochemical characteristics of pore fluids and geological background of the study area, the source and exchange mechanisms of materials in the pore fluids of rift basins were discussed. It was revealed that the material exchange of pore fluids could be divided into five stages. The first stage was the evaporation concentration stage during which mainly Ca2+, Mg2+, and CO32- precipitated as high-Mg calcites. Then came the shale compaction stage, when mainly Ca2+ and CO32- from shale compaction water precipitated as calcites. The third stage was the carboxylic acid dissolution stage featured by predominant dissolution of plagioclases, during which Ca2+ and Na+ entered pore fluids, and Si and Al also entered pore fluids and then migrated as clathrates, ultimately precipitating as kaolinites. The fourth stage was the organic CO2 stage, mainly characterized by the kaolinization of K-feldspar as well as dissolution of metamorphic lithic fragments and carbon cements. During this stage, K+, Fe2+, Mg2+, Ca2+, HCO3-, and CO32- entered pore fluids. The fifth stage was the alkaline fluid stage, during which the cementation of ferro-carbonates and ankerites as well as illitization or chloritization of kaolinites prevailed, leading to the precipitation of K+, Fe2+, Mg2+, Ca2+, and CO32- from pore fluids.

Sign in / Sign up

Export Citation Format

Share Document