The co-relationship of marine carbonates and evaporites: a study from the Tarim Basin, NW China

Xue, Chen; Wei, Mingyang; Li, Xiaobo; Li, Min

doi:10.1007/s13146-020-00653-x

Cited by 3 publications

(4 citation statements)

References 49 publications

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“…This petrofacie consists of ostracods that evolved between the Late Paleozoic and the Cenozoic [82]. Ostracods inhabit a variety of environments, including marine, transitional, and even freshwater.…”

Section: Discussionmentioning

confidence: 99%

Petrography and Provenance of the Sub-Himalayan Kuldana Formation: Implications for Tectonic Setting and Palaeoclimatic Conditions

et al. 2022

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In this paper, the depositional environment, age, and tectonic context of the Sub-Himalayan Kuldana Formation are discussed in detail. To determine the Kuldana Formation’s depositional environment, age, and tectonic setting, sedimentological, palaeontological, and petrographic investigations have been conducted accordingly. The Kuldana Formation lithologically consists of both siliciclastic and carbonate rocks. Petrographically, the Kuldana Formation’s sandstone is divided into litharenite and feldspathic litharenite petrofacies. The sandstone plots on the QtFL and QmFLt suggest that the sandstone of the Kuldana Formation derived from a recycled orogen provenance field that developed during the collision of the Indian and Eurasian plates in the Lesser and Higher Himalayas. The plots in the diamond diagram further demonstrate that the detritus of the Kuldana Formation was derived from low and middle-to-upper rank metamorphic rocks of the Himalayas. Throughout the deposition of sandstone, paleo-climate conditions were semi-humid to semiarid. Dolostone and limestone are the two main types of carbonate rocks found in the Kuldana Formation. According to Dunham’s Classification, the Kuldana Formation limestone is classified as mudstone, wackstone, and packstone. These petrofacies suggest that the limestone was deposited in an inner-outer ramp setting. The bioclasts include bivalves, brachiopods, crinoid, gastropods, Globigerinoides spp, Lockhartia pustulosa, miliolids, Nummulites atacicus, Nummulites discorbina, Nummulites mamillatus, Nummulites djodjokartae, Nummulites vascus, and ostracods suggesting that the age of Kuldana Formation is Middle Eocene- early Oligocene. The Kuldana Formation was deposited during the initial stages of the Himalayan Orogeny as a result of the Ceno-Tethys Ocean’s regression and transgression, as revealed by a succession of siliciclastic and non-clastic rocks.

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Section: Discussionmentioning

confidence: 99%

Petrography and Provenance of the Sub-Himalayan Kuldana Formation: Implications for Tectonic Setting and Palaeoclimatic Conditions

et al. 2022

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“…In the early stage, strong evaporation was beneficial to the increase of seawater concentration. Evaporite began to precipitate, the Mg/Ca of intergranular water in supratidal sediments increased [6], and this high Mg/Ca content led to the occurrence of aragonite or dolomitization of calcite. Long-term dolomitization consumed Mg/Ca from intergranular water in sediments, the Ca 2+ concentration increased, and the Ca 2+ -rich pore fluid provided an important material basis for the formation 12 Geofluids of evaporites [37].…”

Section: Dolomite Origin Of Depsmentioning

confidence: 99%

“…With increasing salinity, the concentration of Mg 2+ in pore water increased accordingly. Because of the influence of gravity and the con-centration gradient in the pore fluid, the fluid with high Mg/ Ca will flow back and infiltrate, causing the limestone infiltration in the lower layer to form dolomite [6]. However, because of the different geochemical conditions caused by the landform, in the environment of the ancient landform highland, namely, tidal flats, the formation of mud-powder 13 Geofluids crystal dolomite is caused by the evaporation pump (Sabuha), which is closely related to the dry and hot evaporation environment.…”

Section: Dolomite Origin Of Depsmentioning

confidence: 99%

“…These were found to contain good reservoir-caprock combinations, with a certain scale of oil and gas resources, promising good exploration potential. Scholars have previously carried out related research, examples of which are studies on the genetic model of dolomite ( [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21]. [22]), the controlling factors of dolomite reservoirs [23,24], the genesis and types of dolomite reservoirs [13,25,26], evaporite characteristics and genesis [27,28], evaporite accumulation conditions [29], paragenesis systems deposition model, and reservoir distribution [30].…”

Section: Introductionmentioning

confidence: 99%

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Sedimentary Characteristics and Developmental Models of the Cambrian Dolostone-Evaporite Paragenesis System in the Sichuan Basin

Wang

Li³

et al. 2022

Geofluids

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The Cambrian strata of Sichuan Basin, China, present many dolomite-evaporite paragenesis systems (DEPS), which contain oil and gas resources for industrial exploitation. However, despite their wide distribution, the formation models and influencing factors of DEPS remain poorly understood. By analyzing an abundance of literature from China, this study comprehensively summarizes the sedimentary characteristics, combination patterns of rocks, and formation models of DEPS. The research significance, research questions, and future research directions of DEPS are also clarified. Firstly, the distribution of DEPS is clarified based on published studies: DEPS are widely distributed in the Longwangmiao Formation, the Gaotai Formation, and the Xixiangchi Formation of the eastern and southern Sichuan Basin. Evaporite and dolostone combination patterns in DEPS include the following modes: interbedding of dolostone and evaporite, evaporite overlying thick dolostone, thick dolostone mixed with thin evaporite, and thick evaporite mixed with thin dolostone. Secondly, five types of evaporites and five types of dolostones have been identified. Thirdly, spatiotemporal distribution, influencing factors, and developmental models are summarized. Studies on DEPS provide new insight into the origin of dolomite. Such research also provides theoretical guidance for the exploration of oil and gas resources in DEPS.

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Controlling factors and reservoir characteristics of Dolostone–evaporite co-occurring systems in the Eastern Sichuan Basin, China

Wang,

Hu,

et al. 2023

Carbonates Evaporites

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The co-relationship of marine carbonates and evaporites: a study from the Tarim Basin, NW China

Cited by 3 publications

References 49 publications

Petrography and Provenance of the Sub-Himalayan Kuldana Formation: Implications for Tectonic Setting and Palaeoclimatic Conditions

Petrography and Provenance of the Sub-Himalayan Kuldana Formation: Implications for Tectonic Setting and Palaeoclimatic Conditions

Sedimentary Characteristics and Developmental Models of the Cambrian Dolostone-Evaporite Paragenesis System in the Sichuan Basin

Controlling factors and reservoir characteristics of Dolostone–evaporite co-occurring systems in the Eastern Sichuan Basin, China

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