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Journal articles on the topic 'Limestone rocks'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Maryanto, Sigit, Dian Hari Saputra, Sonia Rinjani, and M. Luthfi Faturrakhman. "Sedimentologi Batugamping Formasi Jayapura di Sepanjang Lintasan Dewarebru, Mamei-Waibron, Jayapura." Jurnal Geologi dan Sumberdaya Mineral 21, no. 2 (2020): 77. http://dx.doi.org/10.33332/jgsm.geologi.v21i2.506.

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The Pleistocene of the Jayapura Formation limestones well cropped out at Dewarebru Section, Mamey-Waybron, Jayapura Regency. Detailed descriptions of rock outcrops and petrography analysis of selected limestone samples is used to find out the limestone sedimentology characters. This Jayapura limestone was divided onto four limestone facies, including lithoclastic rudstone, bioclastic packstone, bioclastic grainstone and bioclastic wackesone rock facies. The rocks was deposited in a fore slope talus forming submarine alluvial fan, furthermore the rocks was deposited in a local slope on the back

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Fronteau, Gilles, François Boyer, Luc Jaccottey, et al. "Limestone millstones: Facies, provenance and use of sandy to pure limestones in France." Journal of Lithic Studies 7, no. 3 (2020): 1–20. http://dx.doi.org/10.2218/jls.3084.

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Limestones are sedimentary rocks more commonly associated with building stones or sculptures than with millstones. Nevertheless, many examples of limestone saddle querns, rotary querns and millstones are spread across France, at times making up the bulk of the archaeological assemblages in various areas characterized by bedrocks rich of sedimentary stones. These limestone millstones are of different types, sources and geological origins: Eocene sandy or fossiliferous limestones, mainly from the various limestones layers from the Lutetian beds, Quaternary calcareous tufas, and fine Jurassic lim

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Khoirunnisa, N., A. D. Titisari, and L. D. Setijadji. "Geochemical Characteristics of Rocks Associated with Mineralization in the Biting Area, Badegan District, Ponorogo Regency, East Java, Indonesia." IOP Conference Series: Earth and Environmental Science 1517, no. 1 (2025): 012031. https://doi.org/10.1088/1755-1315/1517/1/012031.

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Abstract This study elucidates the geochemical characteristics of igneous rocks and limestone within intrusion complex of the Biting area, Badegan district, Ponorogo regency, East Java province, Indonesia. Geochemical characterization of igneous rocks and limestones are important to get a better understanding of rock characteristics in the research area which are related to metallic mineralization. The research methods consist of field data collection, petrography, mineragraphy, and geochemical (major oxides and trace elements) analyses. Rocks in the research area consist of andesitic to basal

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Dyachenko, G. I., and G. E. Aseev. "THE ROLE OF ANCIENT KARST IN THE FORMATION OF URANIUM DEPOSIT (GORNAYA SHORIYA)." Geology and mineral resources of Siberia, no. 3 (October 2022): 85–91. http://dx.doi.org/10.20403/2078-0575-2022-3-85-91.

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Marmorized limestones of the Upper Proterozoic are widely viewed as host rocks of the Labysh deposit. The formation of uranium ores in carbonate rocks does not correspond to existing сoncepts of the uranium ore process geochemistry. A detailed study of lode ores of the deposit showed that karst cavities were originally filled with limestone fragments of different sizes and finely-dispersed kaolinite. Further, an input of thermal alkaline solutions led to the leaching of earth silicon of metamorphogenic limestone silicates and formation of “silicinate–tar” veins. In fact, the rocks hosting mine

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Darman, Herman. "Tracing the Provenance of the Devonian Limestone of Telen River, East Kalimantan." Berita Sedimentologi 47, no. 1 (2021): 57–62. http://dx.doi.org/10.51835/bsed.2021.47.1.62.

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H. Witkamp found an outcrop with Devonian Limestone in East Kalimantan in 1925. In 1989, an expedition run by Institute of Technology Bandung (ITB) reinvestigated the outcrop and concluded that the Devonian Limestones in Telen River were boulders within a Permian formation. This paper gives a wider overview on the distribution of Devonian rocks in Asia Pacific region and discusses their possible origin.Based on the distribution map of Devonian rocks in the region, the Devonian limestone in Borneo is very isolated. The closest Devonian limestones are about more than 2000 km away. Probably the D

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Samodra, S. B., S. S. Surjono, D. H. Amijaya, and W. Suryanto. "Evaluation of Reservoir Properties of Eemoiko Limestone in Menui Sub-Basin, South-East Arm Sulawesi, Indonesia." IOP Conference Series: Earth and Environmental Science 1517, no. 1 (2025): 012052. https://doi.org/10.1088/1755-1315/1517/1/012052.

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Abstract Eemoiko Limestone is one of potential reservoir rocks in Menui Sub-Basin. This study aimed to evaluate the quality reservoir and depositional environment of Eemoiko Limestone Formation. This study utilized field investigations and laboratory analyses such as petrographic analysis and seismic interpretation. A thorough examination of thin sections from the Eemoiko Limestone, exposed in Wasana and Wolasi area, provides insights into the textural and mineralogical attributes and the presence of skeletal fossils within the limestone. Based on the analysis of thin sections, the limestones

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Korolev, Eduard, Vladimir Morozov, Aleksey Eskin, Anton Kolchugin, and Alexey Khauzkin. "Structure and composition of the Sarailinsky depression oil source strata in territory of the Tatarstan Republic." E3S Web of Conferences 524 (2024): 03014. http://dx.doi.org/10.1051/e3sconf/202452403014.

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The work carried out a study of core material from oil source rocks of the Sarailinsky depression, located between the southern and northern domes of the Tatar arch within the Tatarstan Republic. The well sections of the Sarailinsky strata are dominated by carbonate rocks, represented by packstones, wackestones and mudstones. Among the limestones lie interlayers of carbonate-siliceous rocks and mudstones. All rock lithotypes are enriched to varying degrees in sapropelic organic matter, which allows them to be classified as oil source deposits. There is a tendency for the relative content of or

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Lisbôa da Costa, Danúbia, Ingrid Mayara Medeiros Fernandes, Aluska Nascimento Simões Braga, Rosiane Maria da Costa Farias, Romualdo Rodrigues Menezes, and Gelmires Araújo Neves. "Microstructural Characterization of Ornamental Rock Samples: Cariri Rocks." Materials Science Forum 869 (August 2016): 159–63. http://dx.doi.org/10.4028/www.scientific.net/msf.869.159.

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Ornamental rocks are among the most promising business areas of the mineral sector, raising the necessity for, besides beauty, investments in quality, safety and characterization in the various application fields of these rocks. So, this work aims at the microstructural characterization of the class of these rocks: the Cariri Rocks, also known the limestone, which are calcareous rocks mainly formed by calcium and magnesium carbonate, possibly presenting variations due to their origins. For characterization, we studied four samples, being two from Chapada do Apodi and two from Chapada do Ararip

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Kozhoukharov, Dimitar, Nikola Katzkov, Rositsa Dimitrova, and Ristana Marinova. "Lithostratigraphy of the Pre-Priabonian Paleogene sediments in the area south of Lâki, Plovdiv District." Geologica Balcanica 21, no. 2 (1991): 39–49. http://dx.doi.org/10.52321/geolbalc.21.2.39.

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Pre-Priabonian Paleogene sediments were found outside the confines of the East Rhodope Depression in the area between the villages of Lâkavica and Drjanovo. They are diverse in composition breccia-conglomerates, sandstones, limestones and less commonly clayey limestones to marls which alternate in the section of Lâki Group. The Group consists of three lithostratigraphic units: Staroselo Sandstone - Limestone Formation, Drjanovo Breccia - Conglomerate Formation and Pandursko Limestone Formation. The rocks of the three units are covered by the basal breccia-conglomerates of the Priabonian by a t

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Nachev, Ivan, and Ekaterina Dimitrova. "Upper Cretaceous stratigraphy of the Eastern Balkan Mountains." Geologica Balcanica 25, no. 5-6 (1995): 43–74. http://dx.doi.org/10.52321/geolbalc.25.5-6.43.

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The lithostratigraphic subdivision of the Upper Cretaceous in the Eastern Balkan Mountains includes the Balkanbas (Cenomanian?), Dobromir (Cenomanian, partly Turonian), Radova (partly Turonian – Santonian), Trânak (partly Turonian – Coniacian), Karaveljovo (Coniacian, Santonian) and Emine (partly Turonian – Maastrichtian) Formations. The chronostratigraphy is based on foraminiferal microfauna. The Cenomanian is represented by limnic conglomerates, sandstones, siltstones and shales with coals, as well as of shallow-marine clastic, argillaceous and calcareous rocks. The Turonian includes the upp

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Wang, Jue, Xu Wu, and Oliver C. Mullins. "Fluorescence of Limestones and Limestone Components." Applied Spectroscopy 51, no. 12 (1997): 1890–95. http://dx.doi.org/10.1366/0003702971939712.

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The fluorescence of a series of limestones has been investigated; the relative fluorescence intensities of these limestones differ by a factor of 10. With UV excitation, the fluorescence spectra of these limestones exhibit two distinct peaks, one blue and one red; the relative magnitude of the blue peak is larger for more fluorescent limestone. The limestones were digested, allowing for isolation of different limestone components, which are acid-extractable organics, bitumen, and kerogen. With the correlation of fluorescence spectra and intensities, it has been established that the acid extrac

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Abdelhamid, Marzouk Mohamed Aly, B. G. Mousa, Hassan Waqas, et al. "Artificial Thermal Quenching and Salt Crystallization Weathering Processes for the Assessment of Long-Term Degradation Characteristics of Some Sedimentary Rocks, Egypt." Minerals 12, no. 11 (2022): 1393. http://dx.doi.org/10.3390/min12111393.

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This research aims at investigating the deterioration of limestone rocks due to the influences of thermal quenching and salt crystallization weathering tests and predicting their long-term durability. Therefore, six types of limestones were quarried from different provinces of Egypt and subjected to 50 cycles of thermal quenching and 25 cycles of salt crystallization weathering processes. The porosity, Schmidt hammer rebound hardness, ultrasound pulse velocity, Brazilian tensile strength, and uniaxial compression strength were determined before and after weathering processes. In addition, the

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Widarsono, Bambang. "THE ROCK COMPRESSIBILITY CHARACTERISTICS OF SOME INDONESIAN RESERVOIR LIMESTONES." Scientific Contributions Oil and Gas 37, no. 1 (2022): 1–14. http://dx.doi.org/10.29017/scog.37.1.615.

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Rock compressibility is an important formation rock properties. It infl uences various processesin reservoir and rock formations that encompass from sources of reservoir driving energy, changes inother reservoir properties, to land subsidence. Various studies have been performed and published, butno comprehensive studies have ever been performed on Indonesian reservoir rocks. This article presentsresults of such studies on Indonesian limestones, reservoir rocks that have contributed much to Indonesia’snational oil and gas production for decades. The study was carried out in order to study the

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Tung, Bui Duc, Ngoc Ha Do, Nguyen Kim Thanh, et al. "Geometry and the Mechanism of Landslide Occurrence in a Limestone Area – Case Examples of Landslides in Vietnam and from Europe, China, and Japan –." Journal of Disaster Research 16, no. 4 (2021): 646–57. http://dx.doi.org/10.20965/jdr.2021.p0646.

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Landslide damage has been reported in many limestone areas in Europe, where the population lives close to limestone areas, and in Guilin in southern China and Ha Long in Vietnam, which are known for their unique limestone landscapes. There are few studies on the mechanism and type of landslide motion in and around such limestone areas. The lack of basic data is a problem for risk assessment and countermeasures in limestone areas. In this study, we summarized the causes and mechanisms of landslide occurrence, including geology and groundwater, focusing on six landslides that occurred in limesto

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Fadhil, Doaa T., Mustafa A. Theyab, and Aboosh Al-Hadidy. "Petrographical and microfacies study of Sinjar formation in Bazyan anticline, Sulaimaniyah region (Northern Iraq)." Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu, no. 6 (2021): 11–15. http://dx.doi.org/10.33271/nvngu/2021-6/011.

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Purpose. The work studies Sinjar formation (upper Paleocene lower Eocene) within the Bazyan anticline in the Sulaimaniyah region (northeastern Iraq). The facies analysis is based on the petrographic study of limestone deposits and is essential to identify their nature. The sediments that formed Sinjar formation have a high content of skeletal granules which include a small amount of red algae and residues of unicellular organisms-foraminifera. Methodology. The method of work included two main aspects: field study and laboratory work. The first part included the field description of the rocky e

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Brown, Derek A., James M. Logan, Michael H. Gunning, Michael J. Orchard, and Wayne E. Bamber. "Stratigraphic evolution of the Paleozoic Stikine assemblage in the Stikine and Iskut rivers area, northwestern British Columbia." Canadian Journal of Earth Sciences 28, no. 6 (1991): 958–72. http://dx.doi.org/10.1139/e91-087.

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The Stikine assemblage, the "basement" of Stikinia, extends 500 km along the western flank of the Intermontane Belt, east of younger Coast Belt plutons. Four different stratigraphic successions are characteristic of Lower to Middle Devonian, Carboniferous and Permian rocks in the Stikine and Iskut rivers area. West of Forrest Kerr Creek are penetratively deformed Lower to Middle Devonian island-arc volcaniclastic rocks, coralline limestone, and felsic tuff. Fringing carbonate buildups in an arc setting are best illustrated in the sequence at Round Lake where Lower Carboniferous mafic-dominated

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Kryuchenko, N. O., E. Ya Zhovinsky, P. S. Paparyha, O. A. Zhuk, and M. V. Kuhar. "GEOCHEMISTRY OF FLUORINE OF SEDIMENTARY ROCKS OF DIFFERENT MASSES OF THE CARPATIAN BIOSPHERE RESERVE." Geochemistry and ore formation 44 (2023): 28–34. http://dx.doi.org/10.15407/gof.2023.44.028.

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Carbonate rocks of the territory of the Carpathian Biosphere Reserve (limestones, dolomites, marls) were studied — their mineral composition, carbonation and fluorine content were determined. The average fluorine content was calculated — in limestones (0.038%), dolomites (0.056%), marls (0.06%). It has been proven that an increase in clay mineral impurities in carbonate rocks will contribute to an increase in the total fluorine content. The maximum fluorine content of 0.18% was recorded in the clay fraction (<0.001 mm) of the marl of the Chornohirsky massif, the minimum — 0.08% in the clay

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Dr., Me Me Thein. "A Study on Rock units for Landslide Hazard between Yinmabin and Kalaw areas, Mandalay Region and Shan State South." International Journal of Trend in Scientific Research and Development 3, no. 5 (2019): 2558–63. https://doi.org/10.5281/zenodo.3591729.

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The research area is situated along the Thazi Taunggyi road section and Thazi Shwenyaung railway section in western part of the Shan Plateau. It is one of the most socio economically important transportation routes in Myanmar. Most of the land slide hazards occur annually along the pathways for transportation because of the mountainous terrain area with high steep cutting slopes.The study area involves a sequence of Yinmabin metamorphic complex Early Paleozoic , Lebyin Group Early Carboniferous , Plateau Limestone Group Middle Permian Middle Triassic , Loi an Group late Middle Jurassic early L

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Kravchenko, E. N., V. N. Kadurin, and A. I. Shulman. "TO THE QUESTION OF THE GENESIS OF THE LIMESTONE OF THE GUIDIRIM AND SEVERIN DEPOSITS." Odesa National University Herald. Geography and Geology 26, no. 1(38) (2021): 205–19. http://dx.doi.org/10.18524/2303-9914.2021.1(38).234713.

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Problem Statement and Purpose. In Transnistria, the deposits of Sarmatian-age limestone are explored and exploited. These minerals are used as raw materials for cement production, as well as for the production of buta and rubble. The issues of genesis and facial transitions of these deposits remain under-studied. Data & Methods. The purpose of this work is to determine the genetic affiliation of the limestone deposits of the Gidirim and Severin deposits on the basis of facial and chemical analysis. The materials of the research are the limestones of two deposits of Transnistria. The object

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Ariansyah, Muhammad Resky, Muhammad Fawzy Ismullah Massinai, and Muhammad Altin Massinai. "Rock Types Classification and Distribution on Anabanua Village, Barru Regency, South Sulawesi." Jurnal Geomine 8, no. 1 (2020): 1–8. http://dx.doi.org/10.33536/jg.v8i1.530.

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Anabanua Village, Barru Regency is one of the areas in South Sulawesi that has quite unique geological conditions. This condition inseparably comes from the complicated geological process that took place during the formation of the island, Sulawesi. In Anabanua Village, there are many types of rocks such as sedimentary rocks, metamorphic rocks and igneous rocks. This paper aims to map and classify the types of rock by taking samples on different places in the research area. Then we observe the samples physical properties. The results showed, from taking 10 rock samples in different places, the

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Kozur, Heinz W., and Bruce R. Wardlaw. "The Guadalupian conodont fauna of Rustaq and Wadi Wasit, Oman and a West Texas connection." Micropaleontology 56, no. 1-2 (2010): 213–31. http://dx.doi.org/10.47894/mpal.56.1.08.

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The red, ammonoid-bearing limestones at Rustaq and Wadi Wasit contain Jinogondolella aserrata, the index species for the type Wordian. It occurs with an abundant smooth Mesogondolella fauna and an advanced Waagenoceras ammonoid fauna. In the rustaq section, two species of Mesogondolella are present in both lower and upper red, ammonoid-bearing limestones with M. siciliensis dominating the lower beds and M. omanensis (new species) dominating the upper beds. The same two Mesogondolella species occur in the single, ammonoid-bearing limestone unit at the Wadi Wasit section, where there are additio

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Kravchuk, Yaroslav, Roman Hnatiuk, Myroslav Ivanyk, and Yaroslav Khomyn. "General features of relief of Marmaroshi and Pieniny rocks of Ukrainian Carpathians and their place under system of geomorphological regionalization." Visnyk of the Lviv University. Series Geography, no. 42 (October 15, 2013): 204–20. http://dx.doi.org/10.30970/vgg.2013.42.1860.

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Peculiarities of geological structure and relief of Ukrainian fragment of zones of Marmaroshi and Pieniny rocks located between Outer (Flysch) and Inner Carpathians are considered. Morphostructural differences and common features of relief of these zones are clarified. Territory of zones of Marmaroshi and Pieniny rocks is considered as separate geomorphological region of mountain part of Ukrainian Carpathians – subregion of Intermountain Valleys and Rocky Chains. Expediency of separation and taxonomic class of this geomorphological region are proved, its division into taxonomic units of lower

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Čustović, Hamid, Melisa Ljuša, and Mirsad Kurtović. "SENSITIVITY OF LAND TO CLIMATE CHANGE AND SUSTAINABLE DEVELOPMENT IN THE SUBMEDITERRANEAN KARST AREA OF BOSNIA AND HERZEGOVINA." Radovi Šumarskog fakulteta Univerziteta u Sarajevu 21, no. 1 (2016): 55–69. http://dx.doi.org/10.54652/rsf.2016.v1.i1.283.

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UDK 631.4:551.583(497.6) The value of the landscape in the karst region of Bosnia and Herzegovina (B&H) is the foundation of its existence and the key role in its appearance and formation is played by geomorphology and the soil. Through history the man has created a „cultural landscape” which is completely adapted to the natural conditions. He further enriches the space and makes it more appealing. Soils in B&H karst are extremely heterogeneous and form a real pedological mosaic. Found on the Mesozoic sediments of limestone and dolomite of the Middle and Upper Jurassic and Early

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Nelson, W. John, Stephen F. Greb, and C. Pius Weibel. "Pennsylvanian Subsystem in the Illinois Basin." Stratigraphy 10, no. 1-2 (2013): 41–54. http://dx.doi.org/10.29041/strat.10.1.03.

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Pennsylvanian rocks are at the bedrock surface in the Illinois Basin, which covers most of central and southern Illinois, southwestern Indiana, and part of western Kentucky. The lower contact is a regional unconformity, incised into rocks ranging in age from Ordovician to Late Mississippian. Morrowan rocks are confined to the southeastern part of the basin, the bottoms of deep paleovalleys, and a small outlier at the northwest corner. Characteristic rocks are clean quartz sandstone (quartz arenite), siltstone, shale, lenticular coal, and rare limestone. Atokan rocks show a transition from quar

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Răcănel, Carmen, Mihai Dicu, Ştefan Marian Lazăr, and Adrian Burlacu. "Asphalt Mixtures with Limestone Aggregate for Base Layer." Romanian Journal of Transport Infrastructure 1, no. 1 (2012): 36–49. http://dx.doi.org/10.1515/rjti-2015-0004.

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Abstract Asphalt mixtures are mixtures of mineral aggregates, filler, bitumen and eventually additives in proportions determined by recipe designed in the laboratory. Asphalt mixtures used as base course are bituminous concrete. The natural aggregates are granular materials of mineral origin that come from natural or artificial crushing of the rocks. In our country there are the various rocks: eruptive or magmatic rocks, metamorphic rocks, sedimentary rocks. To the category of sedimentary rocks belong limestone. Sedimentary rocks are characterized by relatively high porosity and a pronounced s

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Všianský, Dalibor, Karel Dvořák, and Karel Slavíček. "Relationship between microstructure of carbonate rocks, calcite crystallinity and decarbonisation process during lime burning." Cement Wapno Beton 24, no. 1 (2019): 2–9. http://dx.doi.org/10.32047/cwb.2019.24.1.1.

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The use of limestone in lime and clinker production respectively represents one of the biggest industrial branches worldwide. Decarbonization is a crucial part of the burning process. No clear prediction method of the decarbonisation heat for a particular limestone, even in a relative scale, has been published yet. In the presented research, ten diverse very pure limestone samples from neoproterozoic up to cretaceous were studied by means of light microscopy, powder XRD and differential scanning calorimetry. The samples showed similar mineralogical compositions and relatively close calcite cry

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Mohammed, Ahmed, and Wael Mahmood. "Statistical Variations and New Correlation Models to Predict the Mechanical Behavior and Ultimate Shear Strength of Gypsum Rock." Open Engineering 8, no. 1 (2018): 213–26. http://dx.doi.org/10.1515/eng-2018-0026.

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Abstract In this study, over 1000 data from the several research studies was used to characterize and compare the density, strengths, modulus, flexural strength, porosity and the ultimate shear strengths of the calcium rocks. The gypsum rock data were statistically analyzed, quantified and compared with the limestone rock data. The ranges of the densities for gypsum rock (CaSO4·2H2O) and limestone rock (CaCO3) were 2.10 to 2.83 gm/cm3 and 1.70 to 2.75 gm/cm3, respectively. The compressive and tensile strengths of the gypsum and limestone rocks varied from 2 MPa to 250 MPa and 1.8 MPa to 25 MPa

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Nachev, Ivan, and Ekaterina Dimitrova. "Upper Cretaceous stratigraphy of the Eastern Sredna Gora Zone." Geologica Balcanica 25, no. 3-4 (1995): 3–26. http://dx.doi.org/10.52321/geolbalc.25.3-4.3.

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The litostratigraphic subdivision includes the Kardif (Cenomanian?), Cerovska (Cenomanian, Turonian), Gradište (Coniacian, Santonian), Kubadin (Coniacian-Campanian), Sinemorec (Coniacian-Campanian), Izgrev (Coniacian-Campanian), Glušnik (Campanian), Konjovo (Campanian) and Dryankovec (Maastrichtian) Formations. The chronostratigraphy is based on microfaunistic (foraminifers) associations. The Cenomanian consists of limnic and coal-bearing undated rocks (Kardif Formation) or of shallow-marine dated clastic rocks and limestones (Cerovska Formation). The Turonian includes the upper part of the sh

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Mohammed Rashed Abood and Muhand Essa Kheder. "Suitability of Fatha Limestone rocks in Sharqat Area for Riprap." Tikrit Journal of Pure Science 22, no. 10 (2023): 146–52. http://dx.doi.org/10.25130/tjps.v22i10.900.

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The study aims to evaluate suitability of Fatha limestone rocks in Sharqat Area for Riprap. The exposed rocks belongs to Fatha &Injana Formations in addition to quaternary deposits, Three stations were chosen to studied the limestone rocks in the north west plunge of Makhul anticline, Petro physical tests show the values(6.4-9.1)% (2.15-2.21)gm/cm3 (2.58-2.64) for Absorption, Dry density and Specific gravity respectively while the mechanical and chemical tests show the values(12-20) Mpa, (38-43)%, (5-12.5)% for unconfined compression strength, mechanical abrasion and chemical abrasion resp

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S, Rini Rahmatia, Aang Panji Permana, and Ronal Hutagalung. "POTENSI BATUGAMPING TERUMBU GORONTALO SEBAGAI BAHAN GALIAN INDUSTRI BERDASARKAN ANALISIS GEOKIMIA XRF." EnviroScienteae 19, no. 2 (2023): 16. http://dx.doi.org/10.20527/es.v19i2.5469.

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Reservoir rocks are hollow rocks below the surface that are capable of storing and flowing groundwater that can be utilized by the community. The limestone facies is a good reservoir rock. The characteristics of the limestone facies in the Ombulo Region, Gorontalo Regency, which reach 3.42 km2, are very interesting to study. This study aims to analyze the porosity value of each limestone facies in the study area. The research method used consisted of field geological surveys and petrographic laboratory analysis. The results showed that the study area consisted of four limestone facies namely f

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Jiang, Yuan Hai. "Influences of Limestone Aggregates on Concrete Strength in Pipe Piles Production." Applied Mechanics and Materials 584-586 (July 2014): 1370–74. http://dx.doi.org/10.4028/www.scientific.net/amm.584-586.1370.

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Taking the limestone and siliceous rocks as coarse aggregates to mix concrete,through normal pressure steam curing and autoclave curing,the concrete compressive strength after demould and compressive strength after autoclave curing are tested.The results indicate that the concrete compressive strength increases obviously after normal pressure steam curing when taking the limestone and granite as coarse aggregates,and the strength increasing laws are basically in accordance.However,the concrete compressive strength is great different after autoclave curing when taking the limestone and granite

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Hisyam, Febrina, Aang Panji Permana, and Ronal Hutagalung. "Analisis Porositas Batugamping Sebagai Reservoir Air Tanah Daerah Bintalahe, Kabupaten Bone Bolango, Provinsi Gorontalo." Journal of Applied Geoscience and Engineering 3, no. 2 (2024): 99–112. https://doi.org/10.37905/jage.v3i2.30311.

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Reservoir rocks are subsurface rocks that are porous and able to store and flow groundwater that can be utilized by the surrounding community. The rocks that function as groundwater reservoirs in the Bintalahe area are limestone. Almost the entire research area is composed of limestone so it is interesting to study. Gorontalo is located on the northern arm of Sulawesi which is bordered by two provinces and two seas, namely North Sulawesi Province in the east, Central Sulawesi Province in the west, Tomini Bay in the south and the Sulawesi Sea in the north. Gorontalo has interesting geological d

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Vukadin, Domagoj, Jasna Orešković, and Csaba Kutasi. "Elastic Properties of Pannonian Basin Limestone under Different Saturation Conditions." Energies 14, no. 21 (2021): 7291. http://dx.doi.org/10.3390/en14217291.

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Understanding elastic properties of reservoir rocks is essential for seismic modeling under different saturation conditions as well as lithology discrimination. Experiments on elastic properties of limestones are significantly less published compared to siliciclastic sedimentary rocks. The current study presents the results of laboratory measurements on Pannonian Basin limestone cores. The research was carried out for the first time for a hydrocarbon reservoir in the Bjelovar Depression, located in the southern part of the Pannonian Basin. Ultrasonic velocity measurements and determination of

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Solak, Adem. "Experimental investigation on the application of concrete produced with limestone and dolomitic limestone aggregates in building constructions." Cement Wapno Beton 28, no. 1 (2023): 16–25. http://dx.doi.org/10.32047/cwb.2023.28.1.2.

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Concrete, which is frequently used in the production process of buildings; It is made by mixing cement, water, aggregate and additives in appropriate amounts. It is important that the physical, chemical, mineralogical and especially mechanical properties of the concrete are at the desired level in terms of strength and durability of the built structures. In this direction, the selection of aggregates, which are an important part of the concrete mix, is one of the important factors affecting the concrete properties. The use of limestone and dolomitic rocks, which are rocks of sedimentary origin

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Boften, Fikri, Aang Panji Permana, and Muhammmad Kasim. "Diagenesis Analysis of Padengo Limestone Area, Gorontalo Regency Based on Petrographic Method." Journal of Applied Geospatial Information 7, no. 2 (2023): 861–66. http://dx.doi.org/10.30871/jagi.v7i2.5074.

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Carbonate rocks are rocks composed of carbonate minerals that are chemically formed in the form of solutions, and there are organisms involved in their formation. The limestone found around Lake Limboto is very interesting, because the water in the lake is freshwater while the limestone is characteristic of a marine environment. Diagenesis is a natural process in sedimentary rocks that occurs from the initial deposition until it reaches the limit of metamorphism will be formed. The research area is located in Padengo Village, West Limboto Subdistrict, Gorontalo Regency with a research area of

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Bhatt, Nilesh, and M. P. Patel. "Bioclastic Shore Deposits: Indicators of Late Quaternary High Sea in Saurashtra, Western India." Journal Geological Society of India 52, no. 5 (1998): 537–42. http://dx.doi.org/10.17491/jgsi/1998/520505.

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Abstract The high energy coastal segment between Okha and Diu in Western Saurashtra is characterised by typical kind of raised bioclastic shore deposits. These occur up to 15 m (max.) above present day mean sea level and about 5 km inland. Variously described as "coast fringing rocks", "Chaya Formation", "ancient beach rocks", "shell limestones", etc., these possess poorly sorted allochems and lithic fragments of coarse sand to gravel size, mostly cemented by aragonitic micrite and occasionally fibrous aragonitic and high magnesian calcite, their pores being infilled by second generation of lo

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KIKVIDZE, OMAR, and GULBANU BAISAROVA. "TESTING OF ROCK SAMPLES FROM OIL AND GAS FIELDS TO DETERMINE THEIR PHYSICAL AND MECHANICAL CHARACTERISTICS." Yessenov Science Journal 48, no. 3 (2024): 170–82. http://dx.doi.org/10.56525/dakl9517.

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Determination of the physical and mechanical properties of anisotropic limestone rocks is an important and urgent task, since carbonate deposits are very often found in oil and gas fields of the Mangistau region. The data show that limestone creates from 70% to 90% of all problems related to the stability of wells, which is due to the peculiarities of their physical and mechanical properties. Experimental studies of the physical and mechanical properties of limestone have features both in terms of monolith selection and in terms of preparation of samples for research, and in the methods of con

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Hong, Dongdong, Ming Fan, Lingjie Yu, and Jian Cao. "An experimental study simulating the dissolution of gypsum rock." Energy Exploration & Exploitation 36, no. 4 (2018): 942–54. http://dx.doi.org/10.1177/0144598717751927.

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The dissolution of gypsum rock is of significance to study because it affects the formation of hydrocarbon reservoirs, cap rocks and evaporite deposits. However, the characteristics and mechanism of the dissolution process remain unclear. Here, we present data from experiments performed to address this issue. The experiments simulate various geological conditions, including different diagenetic stages of burial under different fluid types. The diagenetic stages include: 30°C and 0.3 MPa for the epidiagenetic stage; 60°C and 13 MPa for the early diagenetic stage; 100°C and 27 MPa for the middle

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Arsyad, Muhammad, Mardianti Rukmana, and Pariabti Palloan. "Valuation of Physical Properties of Rocks in the Maros Pangkep Karst Area of Bantimurung Bulusaraung National Park." Jurnal Penelitian Pendidikan IPA 8, no. 4 (2022): 1954–62. http://dx.doi.org/10.29303/jppipa.v8i4.1960.

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This research is an experimental study that aims to analyze and valuate the physical properties of rocks in the Maros Pangkep Karst Area. The samples were 60 (sixty) consisted of each 30 (thirty) samples in the Maros Karst Area (04°58'-05°01' S and 119°39'-119°41' E) and in the Pangkep Karst Area (04°51'-04°53' S and 119°37'-119°38' E). The analysis results of the physical properties of rocks in the Maros Karst Area obtained modified limestone and dolomite limestone with density values in the range of 1.50-2.68 g/cm3 and porosity of 0-50%, indicating secondary porosity. The Pangkep Karst Area

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Yin, Jie, Ping Hu, Yu Guo, Yuezhe Li, and Shunshe Luo. "Petrological Characteristics and Hydrocarbon Generation of Carbonate Source Rocks of the Permian Taiyuan Formation in Central and Eastern Ordos Basin, China." Minerals 13, no. 8 (2023): 1058. http://dx.doi.org/10.3390/min13081058.

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In order to evaluate the hydrocarbon generation potential and effectiveness of the carbonate source rock from the Lower Permian Taiyuan Formation of the Upper Paleozoic gas reservoirs in the central and eastern Ordos Basin, 87 core samples from the formation were analyzed through the comprehensive application of core observation, thin section analysis, lithofacies division, and organic geochemistry experiments. The results show that the carbonate source rocks of the Taiyuan Formation comprise four lithofacies types with type I–II kerogen: laminar argillaceous micritic limestone, massive micrit

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Deng, Xiaohong, Yanan Zhou, Teng Wang, et al. "Rock Magnetic Results from the Early Ordovician Limestone Rocks in the Northern Qaidam Block, Tibetan Plateau." Minerals 13, no. 1 (2022): 65. http://dx.doi.org/10.3390/min13010065.

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The early Ordovician location of the Qaidam Block remains unclear, mainly due to the sparse paleomagnetic data to quantitatively determine the coeval position. The early Ordovician limestone is widespread in the northern Qaidam Block providing an ideal window to obtain a paleomagnetic result. The results derived from the limestone are, however, frequently constrained by the hydrothermal fluid activities after the strata formed and complex magnetic minerals in the samples. Therefore, systematic petrological and rock magnetic studies were conducted to identify the content and composition of magn

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Cavalcanti, José Adilson, Ronaldo Sarmento, and Fredson Nunes. "Geological Field Guide of Montes Claros Karst, Minas Gerais." Estudos Geológicos 33, no. 2 (2023): 3–34. http://dx.doi.org/10.18190/1980-8208/estudosgeologicos.v33n2p03-34.

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The Montes Claros Karst is located on the eastern margin of the Bambuí Basin, one of the covers of the São Francisco Craton affected by the Brasiliano Event, which deformed the limestones of the Lagoa do Jacaré Formation, creating a westward folding system and a pair of fractures F1 (NNE-SSW) and F2 (WNW-ESE). These structures control the circulation of water in the limestone massifs, leading to the development of the Montes Claros karst. The main features of the karst landscape are caves, valleys, dolines and limestone massifs. The caves are the best place to observe the main sedimentary faci

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Kanaris-Sotiriou, R., R. Neves, and F. G. F. Gibb. "Wall-rock silicification associated with fluorite veins in Carboniferous limestone at Butts Quarry, Derbyshire, England." Geological Magazine 123, no. 5 (1986): 569–79. http://dx.doi.org/10.1017/s0016756800035159.

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AbstractWall rocks on either side of narrow fluorite veins cutting Dinantian Limestones at Butts Quarry, Derbyshire, exhibit unusual and spectacular alteration structures. Buff, ‘blackened’ and grey limestone lithologies, containing significant amounts of euhedral quartz crystals, occur in a zoned sequence adjacent to the veins. The alteration structures are attributed to a two-stage process involving silicification and subsequent re-mobilization of silica by fluids passing along the vein.

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Karam R.A. AL-Nqar, Sawsan H. Faisal, and Yaseen S.K. Al-Jwaini. "Microfacies Analysis of the Mishrif and Kifil Formations of Amara Oil field/South of Iraq." Tikrit Journal of Pure Science 24, no. 5 (2019): 45–54. http://dx.doi.org/10.25130/tjps.v24i5.415.

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The lithologic and petrographic studies of the Mishrif and Kifil formations in Amara oil field in wells AM11,AM9, AM5 was revealed that the Mishrif formation consists of limestone and dolomitic limestone. While the Kifil formation is consist of the anhydrite and mud-dominated limestone.  The skeletal grains of Mishrif formation includes variety of benthos foraminifera, bivalves (Rudist) ,corals , stromatolite, algae, ostracods, gastropods, echinoderms. Non-skeletal grains are rare and authegenic minerals of pyrite and iron oxide are present. The rocks of the formation are affected by dia

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Kozlu, Hüseyin, Yakut Göncüoglu, Graciela Sarmiento, and Mehmet Cemal Göncüoğlu. "First finding of Late Silurian conodonts from the "Orthoceras Limestones", Camdag Area (NW Turkey): prelilninary constraints for the palaeogeography." Geologica Balcanica 32, no. 1 (2002): 3–12. http://dx.doi.org/10.52321/geolbalc.32.1.3.

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The Paleozoic succession of the Camdag area is located between the Paleozoic rocks of the Istanbul and Zonguldak terranes in NW Turkey and has a key location for the paleogeographic position of these terranes. The Silurian deposits in this area includes from bottom to top: the Black Shale Member (gray to greenish gray, well cleaved shales with minor black siltstone and limy shale interlayers), the Shale-Limestone Member (black shales with limestone and dolomitic limestone interlayers), and the Shale-Si Itstone Member (alternation of black shales, light gray quartz-rich siltstones with few lime

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Islam, Musfirat Najmun, Md Anwar Hossain Bhuiyan, Mohammad Solaiman, Md Sajjadul Islam Fahim, and Zohur Ahmed. "Evaluation of Reservoir Properties of Sylhet Limestone of Jaintia Group, North-Eastern Sylhet, Bangladesh." Dhaka University Journal of Earth and Environmental Sciences 12, no. 2 (2024): 119–37. http://dx.doi.org/10.3329/dujees.v12i2.73167.

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The Sylhet Limestone in the Bengal Basin, formed in the Eocene Epoch and known for its fossil content, is significant in understanding the reservoir characteristics. Despite exposure in Jaflong and Takerghat of the Bengal Basin, little research has been conducted on reservoir characteristics. This study aimed to comprehensively examine the Sylhet Limestone Formation, encompassing its crystalline upper and fossiliferous lower sections. It utilized field investigations and laboratory analyses to address the gaps of sporadic or insufficient earlier studies. A thorough examination of thin sections

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Chaudhuri, Swagata, Arindam Guha, Ajoy K. Bhaumik, Suparn Pathak, and Nikhil Kumar Baranval. "Analysis of the Spectral Contrast between Fossil-bearing and Fossil-depleted Limestone from the Kachchh Region, NW India Using Reflectance and Emittance Spectroscopy Data." Journal Of The Geological Society Of India 100, no. 7 (2024): 971–80. http://dx.doi.org/10.17491/jgsi/2024/173940.

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ABSTRACT We analyzed the reflectance and emittance spectra of representative samples of mega and microfossil-bearing limestones and identified the mineralogical controls, which may have led to the preservation of mega and microfossils in the limestone within the spectral domain of 400-2500 nm and 8000-14000 nm. In this regard, we collected and analyzed the reflectance and emittance spectra of fossil-bearing and fossil-depleted limestone samples using respective reflectance and emittance spectra of their dominant constituent minerals. Reflectance spectra of mega and microfossil-bearing limeston

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Abravets, S. M., and I. A. Yashin. "NON-TRADITIONAL OIL AND GAS-PERSPECTIVE RESERVOIRS OF THE INTER-SALT COMPLEX OF THE PRIPYAT TROUGH." Doklady of the National Academy of Sciences of Belarus 62, no. 3 (2018): 335–40. http://dx.doi.org/10.29235/1561-8323-2018-62-3-335-340.

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Lower Famenian inter-salt deposits (Belarus) have been studied comprehensively. The microlithofacies are as follows: laminated organic-carbonate-silica rock; massive limestone; radiolarite; algal limestone; massive dolomite; porous dolomite; dolomite of indistinct lumpy texture. Rocks contain pores of dissolved radiolarians, cracks of fluid auto-fracturing and weakened zones encountered in the secondary transformations. Rocks of Domanic type in the Central oil area of the Pripyat can be oil-bearing and oil-generating ones.

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Liu, Lei, Rui Li, Hao Qin, and Wei Sun. "Experimental SHPB Study of Limestone Damage under Confining Pressures after Exposure to Elevated Temperatures." Metals 11, no. 10 (2021): 1663. http://dx.doi.org/10.3390/met11101663.

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Studying the dynamic performance of rocks affected by high temperatures is a crucial theoretical foundation of mining engineering design and the construction of deep metallic mineral resources. More importantly, such studies can provide technical support for the green and low-carbon mining of these resources. However, systematic studies on the dynamic mechanical properties of rocks affected by both confining pressure and temperature during the mining of deep metallic mineral resources are lacking. Therefore, systematic research was conducted on the dynamic mechanical properties of limestone un

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Khoonphunnarai, Pitchpilai, Phayao Yongsiriwit, Chanyut Fongsuwan, and Murnee Daoh. "Physical Characterization of Rocks in Thung Nui Hot Spring, Satun Province, the South of Thailand." Applied Mechanics and Materials 886 (January 2019): 166–71. http://dx.doi.org/10.4028/www.scientific.net/amm.886.166.

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In this study, Physical properties of rocks from geothermal reservoir were investigated. To describe rock properties of the selected outcrops, density, radioactivity, and heat production were researched. The obtained density of granite rock from Triassic period and limestone rock from Ordovician period were 2,648±112 kg/m3 and 2,637±96 kg/m3, respectively. Radioactivity of 226Ra 232Th and 40K of granite rock were measured as 109.9±17.2 Bq/kg, 134.2±9.5 Bq/kg, and 1,569.3±75.7 Bq/kg, respectively. For limestone rock, it shows 13.8±6.4 Bq/kg, 23.3±7.7 Bq/kg, and 394.1±117.8 Bq/kg, respectively.

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