Bioaccumulation of trace elements in lichens exposed to geothermal and volcanic activity from copahue-caviahue volcanic complex, patagonia, Argentina
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چکیده
منابع مشابه
Copahue Geothermal System: A Volcanic Environment with Rich Extreme Prokaryotic Biodiversity
The Copahue geothermal system is a natural extreme environment located at the northern end of the Cordillera de los Andes in Neuquén province in Argentina. The geochemistry and consequently the biodiversity of the area are dominated by the activity of the Copahue volcano. The main characteristic of Copahue is the extreme acidity of its aquatic environments; ponds and hot springs of moderate and...
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Volcanic glass is deposited with trace amounts (0.1–0.6 wt.%) of undegassed magmatic water dissolved in the glass. After deposition, meteoric water penetrates into the glass structure mostly as molecular H2O. Due to the lower dD (‰) values of non-tropical meteoric waters and the 30‰ offset between volcanic glass and environmental water during hydration, secondary water imparts lighter hydrogen ...
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پس ازفروپاشی شوروی،رشد منابع نفت و گاز، آسیای میانه و قفقاز را در یک بازی ژئوپلتیکی انرژی قرار داده است. با در نظر گرفتن این منابع هیدروکربنی، این منطقه به یک میدانجنگ و رقابت تجاری برای بازی های ژئوپلتیکی قدرت های بزرگ جهانی تبدیل شده است. روسیه منطقه را به عنوان حیات خلوت خود تلقی نموده و علاقمند به حفظ حضورش می باشد تا همانند گذشته گاز طبیعی را به وسیله خط لوله مرکزی دریافت و به عنوان یک واس...
15 صفحه اولPaleoarchean trace fossils in altered volcanic glass.
Microbial corrosion textures in volcanic glass from Cenozoic seafloor basalts and the corresponding titanite replacement microtextures in metamorphosed Paleoarchean pillow lavas have been interpreted as evidence for a deep biosphere dating back in time through the earliest periods of preserved life on earth. This interpretation has been recently challenged for Paleoarchean titanite replacement ...
متن کاملPreliminary Measurements of Concentrations of Lanthanide Elements in Geothermal Fluids from the Taupo Volcanic Zone, New Zealand
Measurement of the concentrations of rare earth elements (REE) in geothermal fluids and associated altered rocks holds promise as a potential aid in exploration for and exploitation of geothermal fields of economic importance. We have initiated a research program which will provide the basis for assessing this potential. The project involves measuring the REE content of fluids from a variety of...
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ژورنال
عنوان ژورنال: Annals of Environmental Science and Toxicology
سال: 2020
ISSN: 2641-2969
DOI: 10.17352/aest.000019