Dolomitization and hydrotectonic model of burial dolomitization of the Furongian-Lower Ordovician carbonates in the Tazhong Uplift, central Tarim Basin, NW China: Implications from petrography and geochemistry
Sign Up to like & getrecommendations! Published in 2019 at "Marine and Petroleum Geology"
DOI: 10.1016/j.marpetgeo.2019.04.018
Abstract: Abstract The nature of the dolomitizing fluids and genesis of the Furongian-Lower Ordovician dolomites and dolomite cements are interpreted on the basis of petrography, geochemistry (trace elements, REEs, O-C-Sr isotopes) and fluid inclusion microthermometry. These… read more here.
Keywords: lower ordovician; furongian lower; dolomitization; tazhong uplift ... See more keywords
Effects of progressive dolomitization on reservoir evolution: A case from the Permian–Triassic gas reservoirs of the Persian Gulf, offshore Iran
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DOI: 10.1016/j.marpetgeo.2020.104480
Abstract: Abstract Dolostones are among the most important reservoir units within the Permian–Triassic Dalan and Kangan formations throughout the central Persian Gulf. In this study, petrographic and geochemical (carbonate carbon and oxygen isotopes) analyses led to… read more here.
Keywords: permian triassic; micro fabric; fabric destructive; dolomitization ... See more keywords
Permeability's response to dolomitization, clues from Permian–Triassic reservoirs of the central Persian Gulf
Sign Up to like & getrecommendations! Published in 2021 at "Marine and Petroleum Geology"
DOI: 10.1016/j.marpetgeo.2020.104723
Abstract: Abstract Understanding the pattern of spatial permeability distribution in carbonate reservoirs strongly depends on its relationships to geological factors. Despite this importance, the relationship between dolomitization and permeability changes is poorly understood. This study represents… read more here.
Keywords: central persian; permian triassic; dolomitization; permeability ... See more keywords
Integration of stable isotopes, radiometric dating and microthermometry of saddle dolomite and host dolostones (Cretaceous carbonates, Kurdistan, Iraq): New insights into hydrothermal dolomitization
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DOI: 10.1016/j.marpetgeo.2021.104989
Abstract: Abstract This paper integrates Mg-, C-, O-, Sr-isotopes, fluid-inclusions microthermometry, and radiometric dating of dolostones and vug-filling saddle dolomite and calcite of the Upper Cretaceous Bekhme Formation, the Kurdistan Region of Iraq, provide new insights… read more here.
Keywords: saddle dolomite; new insights; radiometric dating; dolomitization ... See more keywords
Reflux dolomitization and subsequent hydrothermal dolomitization induced by the Alkaline Igneous Province in the Middle Devonian Nowshera Formation (Peshawar Basin, NW Pakistan)
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DOI: 10.1016/j.marpetgeo.2021.105178
Abstract: Abstract Dolomitized strata are potential exploration targets because they host economic mineral and hydrocarbon deposits around the globe. Establishing a petrogenetic history for dolomite is thus very vital. In this study, dolomitic bodies present in… read more here.
Keywords: formation; formation peshawar; dolomitization; peshawar basin ... See more keywords
Multiphase dolomitization of a microbialite-dominated gas reservoir, the middle Triassic Leikoupo Formation, Sichuan Basin, China
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Petroleum Science and Engineering"
DOI: 10.1016/j.petrol.2019.05.014
Abstract: Abstract Microbialites have great economic potentials in hosting hydrocarbons throughout the geological record. Diagenesis, particularly dolomitization, has been proven to be crucial in microbialite reservoir development, however, the impacts of dolomitization on microbialite reservoir quality… read more here.
Keywords: formation; dolomitization; reservoir; middle triassic ... See more keywords
Spatial variations in the stoichiometry and geochemistry of Miocene dolomite from Grand Cayman: Implications for the origin of island dolostone
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DOI: 10.1016/j.sedgeo.2016.12.001
Abstract: Abstract The Cayman Formation (Miocene), ~ 140 m thick on Grand Cayman, is incompletely dolomitized with the most of the dolomite restricted to the peripheral part of the island. These calcium-rich dolomites, with 50–60 mol%CaCO 3 (%Ca), are… read more here.
Keywords: dolostone; geochemistry; island; grand cayman ... See more keywords
Island dolostones: Genesis by time-transgressive or event dolomitization
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DOI: 10.1016/j.sedgeo.2019.07.002
Abstract: Abstract Thick Cenozoic dolostone successions found on many isolated carbonate islands have commonly been attributed to “dolomitization events”, whereby time-restricted dolomitization processes repeatedly affected the original limestone successions. Any model invoked to explain dolomitization of… read more here.
Keywords: dolostones genesis; dolomitization; island dolostones; genesis time ... See more keywords
Acceleration of dolomitization by zinc in saline waters
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DOI: 10.1038/s41467-019-09870-y
Abstract: Dolomite (CaMg(CO3)2) plays a key role in the global carbon cycle. Yet, the chemical mechanisms that catalyze its formation remain an enigma. Here, using batch reactor experiments, we demonstrate an unexpected acceleration of dolomite formation… read more here.
Keywords: zinc; formation; zinc saline; dolomitization ... See more keywords
The interaction of tectonics, climate and eustasy in controlling dolomitization: A case study of Cenomanian–Turonian, shallow marine carbonates of the Iberian Basin
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DOI: 10.1111/sed.12704
Abstract: During the Cretaceous, high global sea‐level and low latitudinal temperature variations led to the growth of epeiric carbonate platforms. Platform‐scale dolomitization of these platforms is not common, reflecting the low Mg/Ca ratio of seawater and… read more here.
Keywords: seawater; dolomitization; iberian basin; tectonics ... See more keywords
Fault-controlled dolomitization in a rift basin
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DOI: 10.1130/g38s394.1
Abstract: There are numerous examples of fault-controlled, so-called hydrothermal dolomite (HTD), many of which host economic mineral deposits or hydrocarbons, but there remains a lack of consensus as to how they form. In particular, multiple phases… read more here.
Keywords: fault; rift; dolostone bodies; fault controlled ... See more keywords