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Journal articles on the topic 'The Dolomites'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

Khan, Emad Ullah, Abbas Ali Naseem, Maryam Saleem, et al. "Petrography and Geochemistry of Dolomites of Samanasuk Formation, Dara Adam Khel Section, Kohat Ranges, Pakistan." Sains Malaysiana 50, no. 11 (2021): 3205–17. http://dx.doi.org/10.17576/jsm-2021-5011-05.

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Replacement dolomite occurs in Jurassic Samanasuk Formation in Dara Adam khel area of Kohat ranges, North-Western Himalayas, Pakistan. This study, for the first time, document the process of dolomitization and evolution of strata bound dolomitic bodies. Field investigation, petrography and geochemistry helped in unraveling the formation of several dolomitic bodies. Petrographically dolomites comprises of: (1) medium grain crystalline planer subhedral dolomite (Dol-I); (2) fine grained crystalline anhedral non-planer dolomite rhombs (Dol-II); (3) medium to coarse grained crystalline subhedral-a

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2

Zhong, Shan, Zhaoqian Liu, Zhenkui Jin, Hongyu Tian, Madaki Agwom Istifanus, and Simon C. George. "The Development of Dolomite Within a Sequence Stratigraphic Framework: Cambrian Series 2 Changping Formation, Xiaweidian, China." Minerals 14, no. 12 (2024): 1189. http://dx.doi.org/10.3390/min14121189.

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The Lower Cambrian Changping Formation in the Western Hills of Beijing hosts tidal flat and lagoonal carbonates comprising dolomites, limestones, and dolomitic limestones, reflecting the processes of dolomite cementation and dolomitization within a sedimentary framework. Based on petrographic textures, two types of dolomites were identified: microcrystalline dolomite and fine-mesocrystalline dolomite. Integrating petrological and geochemical data unveils two diagenetic stages. The initial dolomite formation, attributed to hypersaline fluids, occurred in a supratidal-sabkha setting during the e

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3

Mohammed, M. A. A., A. Salmiaton, W. A. K. G. Wan Azlina, M. S. Mohamad Amran, and Y. H. Taufiq-Yap. "Preparation and Characterization of Malaysian Dolomites as a Tar Cracking Catalyst in Biomass Gasification Process." Journal of Energy 2013 (2013): 1–8. http://dx.doi.org/10.1155/2013/791582.

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Three types of local Malaysian dolomites were characterized to investigate their suitability for use as tar-cracking catalysts in the biomass gasification process. The dolomites were calcined to examine the effect of the calcination process on dolomite’s catalytic activity and properties. The modifications undergone by dolomites consequent to thermal treatment were investigated using various analytical methods. Thermogravimetric and differential thermal analyses indicated that the dolomites underwent two stages of decomposition during the calcination process. The X-ray diffraction and Fourier-

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4

Chen, Xiaoquan, Fengcun Xing, Shu Jiang, et al. "Origin and formation model of Eocene dolomite in the upper Niubao Formation of the Lunpola Basin, Tibetan Plateau." Interpretation 9, no. 3 (2021): SF11—SF22. http://dx.doi.org/10.1190/int-2020-0195.1.

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Using fresh core samples, we have determined the origin and formation process of Eocene lacustrine dolomites in the Tibetan Plateau through petrological, mineralogical, and geochemical analyses. Dolomitic rocks were collected from the upper member of the Eocene Niubao Formation in the Lunpola Basin, consisting of dolomitic mudstone, argillaceous dolomite, dolomite-bearing mudstone, and mud-bearing dolomite. These dolomites are dominated by aphanotopic and microcrystalline dolomites, with minor amounts of euhedral or subhedral powder- and fine-crystalline dolomites. Carbon and oxygen stable iso

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5

Yaghoubi, Marjan, Adel Najafzadeh, Afshin Zohdi, Rahim Mahari, and Fazel Khaleghi. "Petrography and Geochemistry of the Triassic Elika Formation Dolomites in Zal Section, Jolfa, NW Iran." Journal Of The Geological Society Of India 100, no. 11 (2024): 1615–29. http://dx.doi.org/10.17491/jgsi/2024/174020.

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ABSTRACT The Triassic Elika Formation contains nine distinct sedimentary units with calcareous and dolomitic composition and up to 377 m in stratigraphic thickness in NW Iran. The two upper dolomitic units with about 78 m in thickness mainly consist of dolomicrite and have formed in shallow burial environments under reducing conditions, frequently influenced by marine fluids. This formation was deposited in supratidal to intertidal shallow marine settings with low temperature and a high rate of evaporation, resulting in the formation of very fine-grained dolomite. The nearsurface diagenetic en

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6

Huang, Shuguang, Mingcai Hou, Anqing Chen, et al. "Fluid Properties and Genesis of Dolomites in the Devonian Guanwushan Formation of Upper Yangtze Platform, SW China." Minerals 12, no. 3 (2022): 317. http://dx.doi.org/10.3390/min12030317.

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The Guanwushan Formation (GWSF) of Devonian dolomite are extensively developed in the northwest of Sichuan Basin in the Upper Yangtze region, but the properties of dolomitization fluid and the geneses are still unclear. Three types of dolomites can be divided by petrological characteristics: the fine-microcrystalline dolomites (FMD), the fine crystalline dolomites (FCD) and the medium crystalline dolomites (MCD). The order degree of these three types of dolomites increased in turn, and they all showed dark cathodoluminescence (CL) luminescence. The total amount of Rare Earth Elements (∑REE) of

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7

Δήμου, Ε., and Κ. Κούκουζας. "MlNERALOGICAL STUDY OF Mg-SKARNS WITH CLINOHUMITE AT THE OMERLI SITE AGGISTRO, SERRES." Bulletin of the Geological Society of Greece 36, no. 1 (2004): 436. http://dx.doi.org/10.12681/bgsg.16732.

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Mg-skam occurrences located in the dolomitic marbles at the Omerli site near Aggistro are studied. The dolomitic marbles are gradually enriched in metasomatic minerals, up to the full replacement and the formation of cohesive lenticular beds of skarns in the marbles. The aplito-pegmatitic veins traversing the surrounding marbles as well as the granodiorite occurring in the broader area of Ahladohoho, are considered responsible for the phenomena of thermal metamorphism and metasomatism in the dolomites. On the basis of mineralogical analytical methods (optical microscopy, X-Ray diffraction, mic

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8

Manche, Cameron J., and Stephen E. Kaczmarek. "A global study of dolomite stoichiometry and cation ordering through the Phanerozoic." Journal of Sedimentary Research 91, no. 5 (2021): 520–46. http://dx.doi.org/10.2110/jsr.2020.204.

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ABSTRACT Various geochemical proxies are used to constrain the diagenetic origin and evolution of ancient dolomites. Dolomite stoichiometry (mole % MgCO3) and cation ordering, two mineralogical attributes that define dolomite, have also been shown to demonstrate utility in this regard. Observations from laboratory experiments and field studies suggest that these attributes broadly reflect the fluid chemistry and temperature of the dolomitizing environment. The degree to which these parameters reflect global conditions during dolomitization (e.g., seawater chemistry, eustasy, atmospheric pCO2)

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9

WANG, Jian, Lu ZHOU, Baozhen ZHANG, and Chonglong GAO. "INSIGHTS INTO THE ORIGIN OF SHALLOW MARINE DOLOSTONES, LONGWANGMIAO FORMATION (LOWER CAMBRIAN), NORTHEAST SICHUAN BASIN, CHINA: PETROGRAPHIC AND GEOCHEMICAL CONSTRAINTS." Carpathian Journal of Earth and Environmental Sciences 17, no. 1 (2022): 5–20. http://dx.doi.org/10.26471/cjees/2022/017/196.

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For a better understanding of the origin of Early Cambrian dolomites in the Sichuan Basin, which serve as valuable oil and gas reservoirs, we present and interpret complex multiparameter petrographic and geochemical analyses of dolomites in the Cambrian Longwangmiao Formation at the Yangsiqiao section. Our data show that these dolomites mainly occur in the middle and upper parts of the Longwangmiao Formation, and we identify two types of dolomites: micrite and fine-medium crystalline dolomites. The micritic dolomites, occasionally coupled with quartz and mica minerals, show dirty crystal surfa

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10

Mirnov, R., and A. Nikolaev. "Dolomite-sepiolite interaction in Kashira and Podolsk deposits of platform part of Bashkortostan: possible biogenic origin." Vestnik of geosciences, no. 10 (December 2, 2024): 3–11. https://doi.org/10.19110/geov.2024.10.1.

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The article is devoted to the genesis of microcrystalline dolomites of the Kashira and Podolsk horizons of the Moscow stage, which are oil reservoirs in the western part of Bashkortostan. They form consistent layers of low thickness, traceable for tens of kilometers, which determines the relevance of studying the conditions of dolomite formation. Dolomites are composed of crystals 1–10 µm in size with sulfate inclusions and sepiolite admixture. Sepiolites are developed in the intercrystalline space as the finest threads and films enveloping dolomite crystals. A detailed study of sepiolites wit

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11

Rieder, Maximilian, Wencke Wegner, Monika Horschinegg, et al. "Precipitation of dolomite from seawater on a Carnian coastal plain (Dolomites, northern Italy): evidence from carbonate petrography and Sr isotopes." Solid Earth 10, no. 4 (2019): 1243–67. http://dx.doi.org/10.5194/se-10-1243-2019.

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Abstract. The geochemical conditions conducive to dolomite formation in shallow evaporitic environments along the Triassic Tethyan margin are still poorly understood. Large parts of the Triassic dolomites in the Austroalpine and the southern Alpine realm are affected by late diagenetic or hydrothermal overprinting, but recent studies from the Carnian Travenanzes Formation (southern Alps) provide evidence of primary dolomite. Here a petrographic and geochemical study of dolomites intercalated in a 100 m thick Carnian sequence of distal alluvial plain deposits is presented to gain better insight

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12

Shah, Mumtaz M., Fadi H. Nader, Julie Dewit, Rudy Swennen, and Daniel Garcia. "Fault-related hydrothermal dolomites in Cretaceous carbonates (Cantabria, northern Spain): Results of petrographic, geochemical and petrophysical studies." Bulletin de la Société Géologique de France 181, no. 4 (2010): 391–407. http://dx.doi.org/10.2113/gssgfbull.181.4.391.

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Abstract The present contribution documents NW-SE oriented fault and fracture related dolomites in Aptian-Albian carbonates (Karrantza area; northern Spain). Field observations revealed two main dolomite types, namely massive and zebra dolomite. Texturally, these dolomite types are mostly planar and nonplanar and variably reworked by subsequent alterations, which resulted in neomorphism and recrystallization, cataclastic deformation and calcite filling of dolostones. Petrographic and geochemical studies demonstrate the superposition of different diagenetic events, which were involved in multip

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ΚΑΝΤΗΡΑΝΗΣ, Ν., Α. ΤΣΙΡΑΜΠΙΔΗΣ, Α. ΦΙΛΙΠΠΙΔΗΣ, Α. ΚΑΣΩΛΗ-ΦΟΥΡΝΑΡΑΚΗ, and Β. ΧΡΗΣΤΑΡΑΣ. "Industrial uses of carbonate rocks from Thassos island (Greece)." Bulletin of the Geological Society of Greece 34, no. 3 (2001): 1147. http://dx.doi.org/10.12681/bgsg.17175.

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The carbonate rocks of Thassos Island are holocrystalline and present sparitic texture. The dolomites have smaller crystall size (0.7-1.6 mm) than the calcitic marbles (0.8-2.2 mm). In the dolomites except the synonymous mineral, calcite (1-10%) and traces of quartz, feldspars and micas are present. In the calcitic marbles except of the calcite, dolomite (2-28%), micas (1-6%) and occasionally feldspars, clay minerals and goethite occur. The results of chemical analysis agree with the mineralogical ones, as well as with the percentage of the isnoluble residue. The dolomites appear purer than al

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14

Kılıç, Özen, and Ahmet Mahmut Kılıç. "Investigation of Raw Material Properties of Turkoglu (Kahramanmaraş) Region Dolomites." Geosound, no. 61 (June 23, 2025): 73–82. https://doi.org/10.70054/geosound.1603377.

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This study was carried out with the aim of determining the raw material properties of the dolomites of the Turkoglu (Kahramanmaraş) region. In this study, samples were taken from the dolomites of occur widely area in Turkoglu (Kahramanmaraş) and firstly, the chemical composition, mineralogical structure, petrographic properties and physico-mechanical properties of the dolomite samples were determined and secondly, calcination experiments were carried out. Calcination experiments were carried out to determine the thermal behavior of dolomites under high temperature conditions. As a result of th

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15

Pant, Charu C. "Stromatolites from Middle-Riphean Gangolihat Dolomites (Deoban), Berinag-Gangolihat Area, Pithoragarh District, Kumaun Lesser Himalaya." Journal Geological Society of India 26, no. 1 (1985): 1–9. http://dx.doi.org/10.17491/jgsi/1985/260101.

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Abstract Gangolihat Dolomite (= Deoban) of eastern Kumaun Himalaya, predominantly made up of micrite, dolomicrite) pelmicrite, dolomitic limestone and talc-associated magnesite, has preserved a variety of stromatolites, of Colonnella group, in its uppermost horizons, best developed soulh of Berinag near Rain Agar, Bora Agar and near the township of Gangolihat. The paper describes four forms of stromatolites which are compared with similar forms described by earlier workers from different parts of Himalaya and the depositional environment has been deduced. A middle Riphean age (1260 - 1000 m.y.

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16

Qiao, Zhanfeng, Jianhua Dong, Zhou Yu, et al. "Diagenesis and Reservoir Evolution Model of the Ediacaran Dengying Formation in the Sichuan Basin: Evidence from Laser Ablation U-Pb Dating and In Situ Isotope Analysis." Minerals 12, no. 11 (2022): 1372. http://dx.doi.org/10.3390/min12111372.

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The microbial dolomite of the Ediacaran Dengying Fm., Sichuan Basin, SW China is endowed with abundant oil and gas resources. A complex diagenetic history greatly complicates the development of such microbial dolomite reservoirs, and has severely restrained hydrocarbon exploration. This study focused on key field profiles in Eastern Sichuan and aimed to decipher the origin and evolution of dolomites, using novel techniques, including elemental mapping, laser ablation U-Pb dating as well as carbon, oxygen, and strontium isotope analyses. Additionally, we compared the diagenesis and reservoir de

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17

Hycnar, Elżbieta, Tadeusz Ratajczak, and Magdalena Sęk. "Dolomites as SO2 Sorbents in Fluid Combustion Technology." Resources 9, no. 10 (2020): 121. http://dx.doi.org/10.3390/resources9100121.

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Dolomites are not used as SO2 sorbents in fluid combustion technology. The literature data show fundamental discrepancies in the possibility of such use. They mainly concern the role of magnesium in the sorption process of SO2 and the durability of desulfurization products under high-temperature conditions. The article demonstrates that MgO is actively involved in the SO2 binding under fluidized furnace conditions. The resulting products of sulfation contain magnesium in their compositions, and their thermal transformations begin only after the temperature exceeds 1100 °C. It has been shown th

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18

Zvir, Yuliya, Carlos Pimentel, and Carlos M. Pina. "The Effect of Stoichiometry, Mg-Ca Distribution, and Iron, Manganese, and Zinc Impurities on the Dolomite Order Degree: A Theoretical Study." Minerals 11, no. 7 (2021): 702. http://dx.doi.org/10.3390/min11070702.

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The determination of the degree of Mg-Ca order in the dolomite structure is crucial to better understand the process or processes leading to the formation of this mineral in nature. I01.5/I11.0 intensity ratios in the X-ray powder diffractograms are frequently measured to quantify dolomite cation order in dolomites. However, the intensity of diffraction peaks can be affected by factors other than the Mg-Ca distribution in the dolomite structure. The most relevant among these factors are (i) deviations from the ideal dolomite stoichiometry, and (ii) the partial substitution of Mg and Ca atoms b

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Siegel, Frederic R. "Factors Influencing the Precipitation of Dolomitic Carbonates." Bulletin (Kansas Geological Survey), no. 152 (April 9, 2024): 129–58. https://doi.org/10.17161/kgsbulletin.no.152.20558.

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Dolomitic carbonates having d-spacing values of disordered dolomite or protodolomite, but lacking major super-reflections, have been precipitated from solutions in the laboratory. Conditions of temperature, pressure, and concentration employed were far less extreme than has previously been reported in the literature. Reagents used were Ca(NO3)2, MgSO4, and Na2CO3; activated charcoal was mixed with reacting solutions to reduce reaction rate so that effect of rate on the final product could be observed. Experimental results indicate that the pH of the precipitating medium, as controlled by the a

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Nössing, Ludwig, and Silvia Forti. "Important geosites and parks in the UNESCO World Heritage Site of the Dolomites." Boletín Geológico y Minero 127, no. 2-3 (2016): 693–702. http://dx.doi.org/10.21701/bolgeomin.127.2-3.027.

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In the geological complexity of the south Tyrol, the Dolomites play a fundamental role, as they are now included in the UNESCO World Heritage (2009) because of their exceptional beauty and unique landscape, together with numerous scientific discoveries. The name of Dolomite comes from the famous mineral dolomite (double calcium magnesium carbonate) discovered by Déodat De Dolomieu in 1789. The dolomitic rocks constitute a large area of the Triassic mountains and many studies have contributed to the discovery of the fundamental stratotypes for the signature of the Permian/Triassic boundary. The

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Zhu, Dongya, Dianwei Zhang, Quanyou Liu, et al. "Formation mechanism of dolomite reservoir controlled by fourth-order sequence in an evaporated marine environment – An example from the Lower Ordovician Tongzi Formation in the Sichuan Basin." Energy Exploration & Exploitation 36, no. 4 (2017): 620–44. http://dx.doi.org/10.1177/0144598717736630.

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The high-porosity dolomite reservoirs of the Lower Ordovician Tongzi Formation (Fm.) were widely developed in the Sichuan Basin of southern China. The characteristics and developing mechanisms of the high-porosity dolomite reservoirs under the control of fourth-order sequence boundaries are discussed. In the Tongzi stage of the Early Ordovician, the Sichuan Basin was in a restricted platform facies in an evaporated shallow seawater environment. From the western to eastern regions of the basin, the Tongzi Fm. was serially developed in a tidal flat-lagoon-high-energy shoal depositional system. T

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Pandit, Dr Dinesh, R. Sajeev, and Mallickarjun Joshi. "Geochemical Evolution of Dolomites in Thanagazi Formation of Mesoproterozoic Alwar Basin, Northwest India." Journal of The Indian Association of Sedimentologists 39, no. II (2022): 30–46. http://dx.doi.org/10.51710/jias.v39iii.256.

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The geochemistry of dolomite in part of the Thanagazi Formation in the Mesoproterozoic Alwar Basin has been studied employing major and trace elements, including rare earth elements (REEs) to understand their provenance and paleoweathering conditions. In the current study, two distinct types of dolomites were identified viz. amorphous and crystalline. Various geochemical discriminants such as SiO2 vs Al2O3 and CaO vs MgO indicate that the dolomites were originated from sedimentary sources with substantial metasomatic and biogenic contributions. Geochemical constraints from plots of Fe2O3/Al2O3

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Conliffe, James, Karem Azmy, Ian Knight, and Denis Lavoie. "Dolomitization of the Lower Ordovician Watts Bight Formation of the St. George Group, western Newfoundland: evidence of hydrothermal fluid alterationGeological Survey of Canada Contribution 20080544." Canadian Journal of Earth Sciences 46, no. 4 (2009): 247–61. http://dx.doi.org/10.1139/e09-019.

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The Watts Bight Formation in western Newfoundland consists of a Lower Ordovician succession of shallow-water carbonates and has been extensively dolomitized. These dolomites occur as both replacements and cements and are associated with complex changes in the rock porosity and permeability. Early replacement micritic dolomites (D1) are finely crystalline and indicate that dolomitization began during early stages of diagenesis. The calculated δ18O values of the earliest (D1) dolomitizing fluids (–6.4‰ to –9.5‰ VSMOW, Vienna Standard Mean Ocean Water) fall between the estimated δ18O values of Tr

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Özyurt, Merve, M. Ziya Kırmacı, and Ihsan S. Al-Aasm. "Geochemical characteristics of Upper Jurassic – Lower Cretaceous platform carbonates in Hazine Mağara, Gümüşhane (northeast Turkey): implications for dolomitization and recrystallization." Canadian Journal of Earth Sciences 56, no. 3 (2019): 306–20. http://dx.doi.org/10.1139/cjes-2018-0168.

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The Upper Jurassic – Lower Cretaceous Berdiga Formation of the Eastern Pontides, Turkey, represents a carbonate platform succession composed of pervasively dolomitized intra-shelf to deep-shelf facies. In this area, polymetallic deposits occur as veins and lenses within the Berdiga Formation in close proximity to its upper contact with the overlying formation. Three different types of replacive dolomites occur in the formation: (i) microcrystalline dolomite, (ii) fabric-preserving dolomite, and (iii) fabric-destructive dolomite. Replacive dolomites are Ca rich and nonstoichiometric (Ca56–58Mg4

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Womer, M. B. "HYDROCARBON OCCURRENCE AND DIAGENETIC HISTORY WITHIN PROTEROZOIC SEDIMENTS, McARTHUR RIVER AREA, NORTHERN TERRITORY, AUSTRALIA." APPEA Journal 26, no. 1 (1986): 363. http://dx.doi.org/10.1071/aj85031.

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The stratigraphy of the Proterozoic in the McArthur River area of Northern Territory consists of the basal, non-economic Tawallah Group, overlain unconformably by dolomitic carbonates and clastics of the McArthur Group, in turn overlain disconformably by Roper Group clastics. Several shows of tarry to brittle bitumen have been reported in sandstones of the Roper Group and in dolomites of the McArthur Group.In thin sections, the bitumen commonly displays shrinkage cracks, apparently associated with the loss of volatiles. Secondary minerals are observed infilling some of the cracks, indicating t

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D.Kh, Asabaev, Badalov F.A, and Normurodov A.A. "DOLOMITES, THEIR FORMATION CONDITIONS AND FEATURES OF TERRITORIAL DISTRIBUTION IN WESTERN UZBEKISTAN." European Journal of Geography, Regional Planning and Development 1, no. 5 (2024): 1–3. http://dx.doi.org/10.61796/jgrpd.v1i5.1056.

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General Background: Dolomites in Western Uzbekistan serve as vital mineral raw materials across industries like chemical, construction, glass, and metallurgy, with ferrous metallurgy being the largest consumer due to their application as refractory materials. Specific Background: Historically, magnesite dominated this role; however, its depletion and increasing global costs have shifted attention to dolomites as an alternative. Over 60 dolomite deposits in Uzbekistan, particularly those with high MgO content such as Shushaktau and Muruntau, have been identified, offering favorable mining and g

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Walker, G., O. E. Abumere, and B. Kamaluddin. "Luminescence spectroscopy of Mn2+ rock-forming carbonates." Mineralogical Magazine 53, no. 370 (1989): 201–11. http://dx.doi.org/10.1180/minmag.1989.053.370.07.

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AbstractCathodoluminescence emission spectra and luminescence excitation spectra of Mn2+ in calcites, dolomites, magnesites, a manganocalcite and a rhodochrosite have been measured at both room temperature and 77 K. Ligand-field parameters have been calculated from the excitation spectra which reflect the size of the metal cation site in which the Mn2+ ion resides. The technique of luminescence excitation spectra has enabled the absorption profile of Mn2+ in Mg and Ca sites in dolomite to be separately determined. The variation of the distribution of Mn2+ between Mg and Ca sites in dolomites i

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Zou, Yu, Donghua You, Bo Chen, et al. "Carbonate U-Pb Geochronology and Clumped Isotope Constraints on the Origin of Hydrothermal Dolomites: A Case Study in the Middle Permian Qixia Formation, Sichuan Basin, South China." Minerals 13, no. 2 (2023): 223. http://dx.doi.org/10.3390/min13020223.

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Reservoirs in the dolomites of the Middle Permian Qixia Formation in the Sichuan Basin are currently important oil and gas exploration objects in China. However, the questions concerning the sources of the dolomitized fluids and the control factors of the Qixia hydrothermal dolomites remain unclear. In this study, the original hydrothermal dolomites (the replacement dolomites (RDs) and saddle dolomites (SDs)) from the Qixia Formation in the southwestern Sichuan Basin (the PR1 well and Baoxing section) were mainly examined using novel in situ carbonate U-Pb dating with clumped isotopes (∆47). O

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Xiao, Di, Benjian Zhang, Xiucheng Tan, et al. "Discovery of a shoal-controlled karst dolomite reservoir in the Middle Permian Qixia Formation, northwestern Sichuan Basin, Southwest China." Energy Exploration & Exploitation 36, no. 4 (2017): 686–704. http://dx.doi.org/10.1177/0144598717733592.

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The dolomites of the Middle Permian Qixia Formation have been important targets of natural gas exploration in the Sichuan Basin for decades. However, more and more exploration and research indicate that the formation of the reservoir might be related to karstification. To testify this hypothesis, we conduct comprehensive outcrop, core, and logging analyses based on a case study in the representative northwestern Sichuan Basin, which has obtained exploration breakthroughs recently. Results show that the Qixia dolomite reservoirs are mainly developed within fine-crystalline dolomites formed by a

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Kamali, M. R., N. M. Lemon, and S. N. Apak. "POROSITY GENERATION AND RESERVOIR POTENTIAL OF OULDBURRA FORMATION CARBONATES, OFFICER BASIN, SOUTH AUSTRALIA." APPEA Journal 35, no. 1 (1995): 106. http://dx.doi.org/10.1071/aj94007.

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Porosity generation and reservoir potential of the early Cambrian Ouldburra Formation in the eastern Officer Basin is delineated by combining petrographical, petrophysical and sedimentological studies. The shallow marine Ouldburra Formation consists of carbonates, mixed carbonates and clastics, clastics and evaporites. Detailed analysis of more than 100 samples shows that dolomitisation resulted in substantial secondary porosity development within the carbonates. Secondary porosity has also been generated within the mixed siliciclastic-carbonate zone by carbonate matrix and grain dissolution a

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Sočo, Eleonora, Andżelika Domoń, Dorota Papciak, et al. "Characteristics of Adsorption/Desorption Process on Dolomite Adsorbent in the Copper(II) Removal from Aqueous Solutions." Materials 16, no. 13 (2023): 4648. http://dx.doi.org/10.3390/ma16134648.

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The removal of hazardous heavy metals that have been released into the environment due to industrial activities has become an important issue in recent years. The presented study concerned the removal of copper(II) ions from aqueous solutions using dolomites. Dolomite is a very attractive adsorbent due to its wide availability, low cost, good adsorption, and environmental compatibility. The paper describes the properties of D-I and D-II dolomites from two different open-cast mines in Poland. The properties of natural adsorbents were determined based on point of zero charges (PZC), elemental an

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Adlan, Qi, Stephen E. Kaczmarek, and Cédric M. John. "Clumped Isotope Reordering and Kinetic Differences in Co-Hosted Calcite and Dolomite Minerals throughout Burial Diagenesis and Exhumation." Minerals 13, no. 12 (2023): 1466. http://dx.doi.org/10.3390/min13121466.

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The clumped isotope paleo-thermometer has become a valuable proxy for the burial history reconstruction of carbonate formations. To maximise the accuracy of these reconstructions, post-depositional alterations, such as recrystallisation and Δ47 isotope exchange reactions, must be understood. In this study, we examine the isotopic behaviour of calcites and early dolomite samples from the same stratigraphic intervals, and thus with similar burial history. This approach provides additional constraints on the kinetics of Δ47 reordering in dolomite during exhumation. Clumped isotope measurements we

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Boyarshinova, M., and R. Kalina. "Lithology of karst deposits of the Uppen Visean section of the Zalesskaya area (North-Western part of the Orenburg region, Russia)." Vestnik of geosciences, no. 7 (September 8, 2022): 3–10. http://dx.doi.org/10.19110/geov.2022.7.1.

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Poorly studied deposits of the Upper Visean section of the south-east of the Orenburg region are one of the promising objects of geological exploration. A powerful stratum of dolomite breccias is described in one of the wells of the Zalesovo area in the lower part of the undifferentiated the Venev, Mikhaylov and Aleksino strata of the Visean section. The section is composed of secondary dolomites with relics of primary textures and structures. Dolomitization complicates interpreting the genesis of deposits and conduct detailed sedimentological studies. Lithotypes of rocks are identified based

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34

Arvidson, Rolf S. "Dolomites: A Volume in Honor of Dolomieu." Eos, Transactions American Geophysical Union 77, no. 14 (1996): 135. http://dx.doi.org/10.1029/96eo00090.

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35

Hao, Ruilin, Liyin Pan, Nana Mu, et al. "Multi-Phase Dolomitization in the Jurassic Paleo-Oil Reservoir Zone, Qiangtang Basin (SW China): Implications for Reservoir Development." Minerals 14, no. 9 (2024): 908. http://dx.doi.org/10.3390/min14090908.

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The age and dolomitization processes in the Paleo-oil reservoir zone, which is composed of massive dolostones found in the Qiangtang Basin (SW China), are still debated. In this research, the Long’eni-Geluguanna Area was selected. Macroscopic information, thin sections, and geochemical methods were used to investigate the dolomitization characteristics and the processes that controlled dolomitization. Five types of replacive dolomites and two types of dolomite cement were observed. Some of the dolomites displayed ghosts of primary sedimentary structures. Saddle dolomites were prevalent, occurr

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36

Li, Luping, Huaguo Wen, Gang Zhou, et al. "Petrographic, Rare Earth Elemental and Isotopic Constraints on the Dolomite Origin: A Case Study from the Middle-Upper Cambrian Xixiangchi Formation in Eastern Sichuan Basin, Southwest China." Minerals 12, no. 10 (2022): 1224. http://dx.doi.org/10.3390/min12101224.

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The Middle-Upper Cambrian Xixiangchi Formation in the Sichuan Basin is regarded as an important reservoir with great potential for hydrocarbon exploration. It is previously indicated that the Xixiangchi carbonates have experienced extensive dolomitization, however, the origin of dolomitizing fluids and the dolomitization mechanism still remain uncertain. In this study, a set of petrographic and geochemical examinations, including rare earth elements (REE) and isotopic (C, O, and Sr) compositions were used to trace the origins of dolomitizing fluids and associated diagenetic processes. The petr

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Nesbitt, Bruce E., and Walter Prochaska. "Solute chemistry of inclusion fluids from sparry dolomites and magnesites in Middle Cambrian carbonate rocks of the southern Canadian Rocky Mountains." Canadian Journal of Earth Sciences 35, no. 5 (1998): 546–55. http://dx.doi.org/10.1139/e98-006.

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Middle Cambrian carbonate rocks of the southern Canadian Rocky Mountains are host to widespread units of white, sparry, hydrothermal, replacement, and open-space filling dolomite. Contained within the dolomites are occurrences of talc and Mississippi Valley type Pb-Zn (the former Kicking Horse and Monarch mines) mineralization and economic concentrations of magnesite (Mount Brussilof mine). Results of studies of solute chemistry of saline (18-25 equivalent wt.% NaCl) inclusion fluids reveal distinctly low Na/Br (55-220) and Cl/Br (95-340) values. These values indicate that the brines which for

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38

Tang, Pan, Daizhao Chen, Shuangjian Li, Yuanzheng Wang, Moataz El-Shafeiy, and Bo Yang. "Early Dolomitization Mechanism of the Upper Ediacaran Qigebrak Formation, Northwestern Tarim Basin: Evidence from Petrography, Rare Earth Elements, and Clumped Isotope." Minerals 14, no. 1 (2023): 35. http://dx.doi.org/10.3390/min14010035.

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The deeply buried Upper Ediacaran Qigebrak Formation dolostones in the Tarim Basin are promising future hydrocarbon exploration targets in China. However, the origin of these pervasive matrix dolomites is not well understood, which hampers further hydrocarbon exploration. In this study, petrographic, isotopic (C, O, and Sr), rare earth element (REE), and clumped isotope analyses were performed to unravel the mechanisms of early dolomitization. Petrographic investigations indicate that the Qigebrak Formation carbonates were completely replaced by three distinct types of dolomites: (1) dolomicri

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Arsoska, Elena, Andrijana Chankulovska Tenovska, Tajana Kostadinova, Arianit Reka, Slobodan Bogoevski, and Boshko Boshkovski. "MINERAL PROCESSING OF THE DOLOMITES FROM DEPOSITS IN THE REPUBLIC OF NORTH MACEDONIA." Mechanical Engieneering-Scientific Journal 43, no. 1 (2025): 31–38. https://doi.org/10.55302/mesj2543131a.

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Dolomites are used as a raw material in various industries such as construction, inorganic chemical technology, metallurgy, agriculture, etc. In the Northwestern Region of the Republic of North Macedonia, there are several deposits of dolomite that are exploited. In this research, the dolomites from the localities of Čajle, Ogledalec and Suvodol were examined. The aim of thе research is to define the mineral processing of the dolomite raw materials. The basic parameters of the grain size reduction were optimized, with a comparison between the deposits. Therefore, the dolomite raw materials wer

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Fan, Zhiyuan, Zhongyang Mao, Xiang Liu, et al. "Microstructure of Dolostones of Different Geological Ages and Dedolomitization Reaction." Materials 15, no. 12 (2022): 4109. http://dx.doi.org/10.3390/ma15124109.

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Dolostone is widely distributed and commonly used as concrete aggregates. A large number of studies have shown that there are significant differences in the expansibility of different dolostones, and the key factors determining the expansibility of alkali carbonate rocks have not been clarified. In this paper, rocks were selected from five different geological ages: Jixianian, Cambrian, Ordovician, Devonian, and Triassic ages. The ordering degree and the content of MgCO3 of dolomites in rocks of different geological ages were determined by X-ray diffraction (XRD). The degree of dedolomitizatio

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Nhunda, Daniel, Lala Lyagi, Agripinus Mpulule, and Rishit Lalseta. "COMPARATIVE EVALUATION OF LIMING MATERIALS FOR MITIGATING AND MANAGING SOIL pH AND ENHANCING MAIZE CROP YIELDS." International Journal of Agriculture, Environment and Bioresearch 10, no. 03 (2025): 40–53. https://doi.org/10.35410/ijaeb.2025.5979.

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This study investigates the effectiveness of various liming materials in mitigating soil acidity, optimizing nutrient availability, and enhancing maize yield at Sokoine University of Agriculture (SUA) in Morogoro, Tanzania. We applied four treatments: dolomites (T1), calcites (T2), mixtures of gypsum and dolomites (T3), and gypsum and calcites (T4), against a control without lime (C). Initial soil pH was recorded at 5.62, indicating moderate acidity. Post-application analysis revealed soil pH improved significantly, with dolomites increasing pH to 6.25 and calcites to 6.23 over two growing sea

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Bogdan, V. A., Sh Kh Sultanov, Y. A. Kotenev, D. Y. Chudinova, and E. A. Mashkova. "Increasing the capabilities of stationary neutron logging in determining the lithology of the carbonate section." SOCAR Proceedings, no. 3 (September 30, 2023): 22–31. http://dx.doi.org/10.5510/ogp20230300883.

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The article presents a method of lithological identification of dolomites and limestones ac-cording to stationary neutron logging in several oil wells located on the territory of the Republic of Bashkortostan. The article presents a research of the influence of the mineral skeleton of rocks on the readings of stationary neutron logging and the use of differences in the values of porosity coefficients calculated from the readings of individual probes for the lithological identification of dolomites and limestones. Keywords: porosity; compensated neutron logging; neutron-neutron thermal neutron

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Cantrell, Dave L., Abdullah Al-Khammash, and Peter D. Jenden. "Characterization and significance of dedolomite in Wadi Nisah, central Saudi Arabia." GeoArabia 12, no. 3 (2007): 15–30. http://dx.doi.org/10.2113/geoarabia120315.

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ABSTRACT Two different types of calcified dolomite, or dedolomite, occur as stratiform and non-stratiform bodies within the Jurassic (Kimmeridgian) upper Jubaila Formation in the Wadi Nisah area of central Saudi Arabia. In the stratigraphically-equivalent subsurface Arab-D reservoir in eastern Saudi Arabia, two types of dolomite, stratiform and non-stratiform, occur which appear to be similar in architecture to the dedolomites examined in this study. However, Wadi Nisah dedolomites exhibit systematic changes in texture and isotopic composition from their precursor dolomites. Non-stratiform ded

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Khalfa, Aouda, Senia Mellouk, Kheira Marouf-Khelifa, and Amine Khelifa. "Removal of catechol from water by modified dolomite: performance, spectroscopy, and mechanism." Water Science and Technology 77, no. 7 (2018): 1920–30. http://dx.doi.org/10.2166/wst.2018.071.

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Abstract Dolomite was treated at 800 °C (D800), characterized, and used in the adsorptive removal of catechol (1,2-dihydroxybenzene) from aqueous solutions. The performances of the D800 sample, named dolomitic solid, were compared with those of the raw material. A bibliographic review shows that the data on the adsorption of phenolic compounds by dolomites are non-existent. Kinetic data, equilibrium isotherms, thermodynamic parameters, and pH influence were reported. Special attention was paid to the spectroscopic study, before and after adsorption. The purpose was to understand the mechanism

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Yan, Ying, and Xiao-Yan Yu. "Gemology, Mineralogy, and Coloration Mechanism of Pinkish-Purple Cobaltoan Dolomite from the Democratic Republic of Congo." Crystals 12, no. 5 (2022): 639. http://dx.doi.org/10.3390/cryst12050639.

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A pinkish-purple cobaltoan dolomite from the Democratic Republic of Congo (DRC) has appeared on the Chinese gemstone market recently. In this study, Raman analysis spectroscopy, Fourier transform infrared (FTIR) spectroscopy, electron probe micro-analysis (EPMA), scanning electron microscopy (SEM), energy-dispersive X-ray fluorescence (EDXRF), and fiber optic spectrometry were used to explore the gemology, mineralogy, and coloration mechanism of cobaltoan dolomite. Results indicate that cobaltoan dolomite is a mineral aggregate with a granular texture. The degree of fineness and luster differs

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Ryb, Uri, and John M. Eiler. "Oxygen isotope composition of the Phanerozoic ocean and a possible solution to the dolomite problem." Proceedings of the National Academy of Sciences 115, no. 26 (2018): 6602–7. http://dx.doi.org/10.1073/pnas.1719681115.

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The18O/16O of calcite fossils increased by ∼8‰ between the Cambrian and present. It has long been controversial whether this change reflects evolution in the δ18O of seawater, or a decrease in ocean temperatures, or greater extents of diagenesis of older strata. Here, we present measurements of the oxygen and ‟clumped” isotope compositions of Phanerozoic dolomites and compare these data with published oxygen isotope studies of carbonate rocks. We show that the δ18O values of dolomites and calcite fossils of similar age overlap one another, suggesting they are controlled by similar processes. C

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Bailey, K., S. Kearns, J. Mergoil, J. Mergoil Daniel, and B. Paterson. "Extensive dolomitic volcanism through the Limagne Basin, central France: a new form of carbonatite activity." Mineralogical Magazine 70, no. 2 (2006): 231–36. http://dx.doi.org/10.1180/0026461067020327.

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AbstractRecognition of widespread carbonate volcanism in central Spain has led to another case in France, of similar age (23–0 Ma) but with entirely new features. More than 100 new carbonate volcanoes are indicated already, adding a wholly unexpected dimension to this form of activity. Eruptions form layers, mostly of glassy nephelinite fragments in a dolomitic matrix, but some layers are largely dolomite. Major new findings are phenocrysts of dolomite, magnesite and calcite in silicate glass, and spectacular dolomite-nephelinite melt immiscibility, neither recorded previously. Most volcanic c

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Zheng, Haofu, Yongsheng Ma, Guoxiang Chi, et al. "Stratigraphic and Structural Control on Hydrothermal Dolomitization in the Middle Permian Carbonates, Southwestern Sichuan Basin (China)." Minerals 9, no. 1 (2019): 32. http://dx.doi.org/10.3390/min9010032.

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The Qixia Formation and Maokou Formation of Middle Permian in the southwestern Sichuan Basin were pervasively dolomitized during the diagenetic history. Petrographically, four types of dolomites, namely three replacive dolomites (Rd1, Rd2, and Rd3) and one dolomite cement (Cd), were distinguished. Rd1 dolomite occurs as very fine (<50 µm), planar-s to nonplanar crystals; Rd2 dolomite shows planar-e to planar-s crystal shapes with fine crystal sizes (50–250 µm) and is characterized by center-frog and margin-clear; Rd3 dolomite occurs as medium to coarse (250 µm–2 mm), nonplanar crystals; and

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Krogulec, Ewa, Katarzyna Sawicka, Sebastian Zabłocki, and Ewa Falkowska. "Mineralogy and Permeability of Gas and Oil Dolomite Reservoirs of the Zechstein Main Dolomite Basin in the Lubiatów Deposit (Poland)." Energies 13, no. 23 (2020): 6436. http://dx.doi.org/10.3390/en13236436.

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Permeability characterizes the ability of rocks to store and transport natural gas, crude oil and reservoir fluids. Permeability heterogeneity of reservoir rocks, including dolomites, results from overlapping geological and physicochemical processes. The permeability study of gas-bearing dolomites was carried out on the Lubiatów hydrocarbon deposit (Poland), located at the Ca2 carbonate platform toe-of-slope, which is a prospective area for hydrocarbon exploration in Europe. Due to the complicated rock textures and overlapping alteration processes, including secondary crystallization or dissol

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Chatalov, Athanas. "Origin of fabric-selective dolomitization recognizable in the field: two case studies from Anisian carbonate rocks in the western Balkanides." Geologica Balcanica 47, no. 1 (2018): 43–60. http://dx.doi.org/10.52321/geolbalc.47.1.43.

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The origin of dolomitized burrows (Cruziana ichnofacies) in limestones and dolomitic layers in limestone-dolostone ribbon rocks was studied on the basis of petrography, X-ray diffractometry, geochemical data and isotope signatures of the dolomites. Selective dolomitization of the burrows with a local source of Mg occurred in a near-surface setting from non-evaporitic solutions with low Mg/Ca ratio. The low-temperature precipitation of non-stoichiometric (with Ca excess) dolomite was microbially mediated and controlled by bacterial sulphate reduction. The carbon for dolomite formation was large

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