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Enviroscan Ukrainian Institute of Speleology and Karstology


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Community news

Speleology in Kazakhstan

Shakalov on 04 Jul, 2018
Hello everyone!   I pleased to invite you to the official site of Central Asian Karstic-Speleological commission ("Kaspeko")   There, we regularly publish reports about our expeditions, articles and reports on speleotopics, lecture course for instructors, photos etc. ...

New publications on hypogene speleogenesis

Klimchouk on 26 Mar, 2012
Dear Colleagues, This is to draw your attention to several recent publications added to KarstBase, relevant to hypogenic karst/speleogenesis: Corrosion of limestone tablets in sulfidic ground-water: measurements and speleogenetic implications Galdenzi,

The deepest terrestrial animal

Klimchouk on 23 Feb, 2012
A recent publication of Spanish researchers describes the biology of Krubera Cave, including the deepest terrestrial animal ever found: Jordana, Rafael; Baquero, Enrique; Reboleira, Sofía and Sendra, Alberto. ...

Caves - landscapes without light

akop on 05 Feb, 2012
Exhibition dedicated to caves is taking place in the Vienna Natural History Museum   The exhibition at the Natural History Museum presents the surprising variety of caves and cave formations such as stalactites and various crystals. ...

Did you know?

That cupola is a hemispheric hill of limestone [10]. see also cone karst; cupola karst; mogote; pinnacle karst; tower karst. synonyms: (french.) cupole; (german.) halbkugel.?

Checkout all 2699 terms in the KarstBase Glossary of Karst and Cave Terms


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KarstBase a bibliography database in karst and cave science.

Featured articles from Cave & Karst Science Journals
Chemistry and Karst, White, William B.
See all featured articles
Featured articles from other Geoscience Journals
Karst environment, Culver D.C.
Mushroom Speleothems: Stromatolites That Formed in the Absence of Phototrophs, Bontognali, Tomaso R.R.; D’Angeli Ilenia M.; Tisato, Nicola; Vasconcelos, Crisogono; Bernasconi, Stefano M.; Gonzales, Esteban R. G.; De Waele, Jo
Calculating flux to predict future cave radon concentrations, Rowberry, Matt; Marti, Xavi; Frontera, Carlos; Van De Wiel, Marco; Briestensky, Milos
Microbial mediation of complex subterranean mineral structures, Tirato, Nicola; Torriano, Stefano F.F;, Monteux, Sylvain; Sauro, Francesco; De Waele, Jo; Lavagna, Maria Luisa; D’Angeli, Ilenia Maria; Chailloux, Daniel; Renda, Michel; Eglinton, Timothy I.; Bontognali, Tomaso Renzo Rezio
Evidence of a plate-wide tectonic pressure pulse provided by extensometric monitoring in the Balkan Mountains (Bulgaria), Briestensky, Milos; Rowberry, Matt; Stemberk, Josef; Stefanov, Petar; Vozar, Jozef; Sebela, Stanka; Petro, Lubomir; Bella, Pavel; Gaal, Ludovit; Ormukov, Cholponbek;
See all featured articles from other geoscience journals


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16 DONGHUANGCHENGGEN NORTH ST, BEIJING 100717, PEOPLES R CHINA

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Acta Petrologica Sinica, 2006, Vol 22, Issue 2, p. 485-490

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Fluid inclusion study of a sedimentary basin: an example of Culberson sulfur and barite deposit, Texas

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Abstract:
The Culberson sulfur-barite deposit is located in Culberson county, West Texas. Geologically, it is occurred ill Delaware sedimentary, petroleum and natural gas basin. There are several sulfur-barite deposits occurring in the basin, Culberson is the largest one. Culberson deposit is hosted by Upper Permian Castile and Salado formation. The Castile and Salodo formation consist of limestone with thin layers of evaporate and organic materials. Natural sulfur and barite is formed post diagenesis, filled into the palco karst and replaced the internal layers of anhydrite. Two generation fluid inclusions are found: I. Fluid inclusion formed during the diagenesis, and II. Fluid inclusion trapped during the authigenic calcite, barite overgrowth. According to the phases and composition at room temperature, the fluid inclusions could be divided into: one phase liquid inclusion; two phases vapor and liquid inclusion, and oil inclusion. In a same growth zone of calcite, several types of fluid inclusions, such as one phase liquid, different vapor/liquid ratio inclusions and oil inclusions occurred. These inclusions are hardly to he used to gel the temperature of homogenization, since they are formed in heterogeneous trapping or an immiscibility environment. The eutectic temperatures of fluid inclusions range from -18 to -24 degrees C, indicating life fluid belongs to a NaCl-H2O system, with the salinity ranges from 2% to 10%, and co-existing with the oil inclusions, these show that the ore forming fluid is an oil filed brine and with temperature less than 100 degrees C

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Keywords: anhydrite, authigenic overgrowth, barite, basin, brine, c, calcite, canada, deposit, deposits, diagenesis, environment, example, fluid, fluid inclusion, fluid inclusions, fluid-inclusion, gas, growth, karst, layers, limestone, natural sulfur, oil field brine, petroleum, phase, range, ratio, salinity, sedimentary, sulfur, system, temperature, temperatures, texas, time, times, west texas, zone,

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