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Calcite-cemented concretions in non-marine sandstones: An integrated study of outcrop sedimentology, petrography and clumped isotopes

文献类型：期刊论文

作者Cao, Binfeng4,5; Luo, Xiaorong4; Wang, Xu1; Zhang, Liqiang3; Shi, Hui2
刊名SEDIMENTOLOGY
出版日期2023-01-23
页码36
ISSN号0037-0746
关键词Calcite concretions clumped isotopes non-marine sandstones outcrop sedimentology
DOI10.1111/sed.13071
英文摘要Calcite-cemented concretions can reduce reservoir quality and form important low-permeability baffles for fluid flow in sandstone hydrocarbon carrier beds/reservoirs. Understanding the origin and distribution patterns of concretions has important implications for characterizing reservoir heterogeneity and developing fields. The origin of calcite concretions in non-marine sandstones lacking detrital carbonate to source the cement is poorly studied. The practical difficulty of obtaining the precipitation temperature of the concretions prevents the precise determination of the source of cement components, solute flux, pore water type and the geochemical microenvironments in which cement precipitated. Carbonate clumped isotope thermometry can give unique constraints to the temperature of concretionary cement precipitation. This study focused on outcrops of the Lower Cretaceous non-marine Qingshuihe Formation in the Urho area, on the north-western margin of the Junggar Basin (West China). Four depositional facies associations were recognized, corresponding to channel, mid-channel bar, abandoned channel and overbank floodplain environments. Calcite concretions occur only in sandstones and include spherical, ellipsoidal and tabular forms. They are isolated and/or mutually aligned in layers that tend to be either at the top, base, or within channel and mid-channel sand bodies. The clumped isotope temperatures for the concretionary calcite range from 31 to 45 degrees C with a standard error of <3 degrees C. The calcite has highly variable, low delta C-13 values ranging from -16.91 +/- 0.01 to -2.93 +/- 0.02 parts per thousand (Vienna Pee Dee Belemnite). The C-13-depleted bicarbonate source was linked to biodegradation of migrated oils at shallow burial owing to tectonic uplift and erosion. Calcite delta O-18 values are very consistent and fall between -12.30 +/- 0.04 to -9.79 +/- 0.31 parts per thousand (Vienna Pee Dee Belemnite). Introduction of meteoric water was a dominant mechanism for the pronounced O-18-depletion in the oxygen isotopes of pore water, along with water-rock interaction during alteration of volcaniclastic materials in sandstones. Meteoric groundwater flushed the Qingshuihe sandstones as confined aquifers down the regional palaeo-slope, biodegrading the migrated oils and enabling a sufficient solute flux for precipitation of concretions.
WOS关键词WALL CREEK MEMBER ; CARBONATE CONCRETIONS ; SPATIAL-DISTRIBUTION ; SHALLOW-MARINE ; REGIONAL-DISTRIBUTION ; FRONTIER FORMATION ; CEMENTATION ; TEMPERATURE ; GROWTH ; EVOLUTION
资助项目National Natural Science Foundation of China[41902135] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA14010202] ; National Science and Technology Major Project[2017ZX05008-004]
WOS研究方向Geology
语种英语
出版者WILEY
WOS记录号WOS:000916947100001
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Science and Technology Major Project ; National Science and Technology Major Project ; National Science and Technology Major Project ; National Science and Technology Major Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Science and Technology Major Project ; National Science and Technology Major Project ; National Science and Technology Major Project ; National Science and Technology Major Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Science and Technology Major Project ; National Science and Technology Major Project ; National Science and Technology Major Project ; National Science and Technology Major Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Science and Technology Major Project ; National Science and Technology Major Project ; National Science and Technology Major Project ; National Science and Technology Major Project
源URL[http://ir.iggcas.ac.cn/handle/132A11/106869]  
专题地质与地球物理研究所_中国科学院油气资源研究重点实验室
地质与地球物理研究所_中国科学院新生代地质与环境重点实验室
通讯作者Cao, Binfeng
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing 100029, Peoples R China
2.Chinese Acad Geol Sci, Inst Geomech, Beijing 100081, Peoples R China
3.China Univ Petr, Sch Geosci, Qingdao 266580, Peoples R China
4.Northwest Univ, Dept Geol, State Key Lab Continental Dynam, Xian 710069, Peoples R China
5.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resource Res, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Cao, Binfeng,Luo, Xiaorong,Wang, Xu,et al. Calcite-cemented concretions in non-marine sandstones: An integrated study of outcrop sedimentology, petrography and clumped isotopes[J]. SEDIMENTOLOGY,2023:36.
APA Cao, Binfeng,Luo, Xiaorong,Wang, Xu,Zhang, Liqiang,&Shi, Hui.(2023).Calcite-cemented concretions in non-marine sandstones: An integrated study of outcrop sedimentology, petrography and clumped isotopes.SEDIMENTOLOGY,36.
MLA Cao, Binfeng,et al."Calcite-cemented concretions in non-marine sandstones: An integrated study of outcrop sedimentology, petrography and clumped isotopes".SEDIMENTOLOGY (2023):36.

入库方式： OAI收割

来源：地质与地球物理研究所

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