Dolomite in caves: Recent dolomite formation in oxic, non-sulfate environments. Castañar Cave, Spain
نویسندگان
چکیده
منابع مشابه
Ocean acidification does not affect magnesium composition or dolomite formation
Introduction Conclusions References
متن کاملAnaerobic methane oxidation and the formation of dolomite
We examine the link between organic matter degradation, anaerobic methane oxidation (AMO), and sulfate depletion and explore how these processes potentially influence dolomitization. We determined rates and depths of AMO and dolomite formation for a variety of organic-rich sites along the west African Margin using data from Ocean Drilling Program (ODP) Leg 175. Rates of AMO are calculated from ...
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We report low-temperature microbial precipitation of dolomite in dilute natural waters from both field and laboratory experiments. In a freshwater aquifer, microorganisms colonize basalt and nucleate nonstoichiometric dolomite on cell walls. In the laboratory, ordered dolomite formed at near-equilibrium conditions from groundwater with molar Mg:Ca ratios of ,1; dolomite was absent in sterile ex...
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Castañar cave contains the highest radon gas ((222)Rn) concentration in Spain with an annual average of 31.9 kBq m(-)(3). Seasonal variations with summer minimums and maximum values in fall were recorded. The reduction of air-filled porosity of soil and rock by condensation or rainfalls hides the radon exchange by gas diffusion, determining this seasonal stair-step pattern of the radon activity...
متن کاملPityriasis rubra pilaris following exposure to dolomite
In this case report, we present a 30-year-old man who developed pityriasis rubra pilaris (PRP) following exposure to Dolomite. The diagnosis of PRP was confirmed histologically and the patient was successfully treated with acitretin and cyclosporine.
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ژورنال
عنوان ژورنال: Sedimentary Geology
سال: 2008
ISSN: 0037-0738
DOI: 10.1016/j.sedgeo.2008.02.006