Feature, genetic model and distribution of calcareous insulating layers in marine strata of western Pearl River Mouth basin in north of South China Sea
| Autor: | Hai-hua Zhu, Ming-guang Liao, Ting-shan Zhang, Yu Hu |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
geography
geography.geographical_feature_category Lithology Terrigenous sediment 0211 other engineering and technologies Metals and Alloys General Engineering Geochemistry 02 engineering and technology Structural basin 010502 geochemistry & geophysics 01 natural sciences Clastic rock Genetic model Meteoric water River mouth 021108 energy Calcareous Geology 0105 earth and related environmental sciences |
| Zdroj: | Journal of Central South University. 27:3375-3387 |
| ISSN: | 2227-5223 2095-2899 |
| DOI: | 10.1007/s11771-020-4553-1 |
| Popis: | We have systematically investigated the feature, genetic model and distribution of calcareous insulating layers in marine strata of the I oil group in member 2 of Zhujiang formation (ZJ2I oil formation), western Pearl River Mouth basin (PRMB) in the north of the South China Sea by using data such as cores, thin sections, X-ray diffraction of whole-rock, and calcite cement carbon and oxygen isotopes. The lithology of the calcareous insulating layers in the study area is mainly composed of the terrigenous clastic bioclastic limestone and a small amount of fine-grained calcareous sandstone. On this basis, two genetic models of calcareous insulating layers are established, including the evaporation seawater genetic model and shallow burial meteoric water genetic model. The calcareous insulating layers of the evaporation seawater genetic model developed in the foreshore subfacies, mainly at the top of the 1–1 strata and 1–3 strata. The calcareous insulating layers of the shallow burial meteoric water genetic model developed in the backshore subfacies, primarily in the 1–2 strata. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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