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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. ...

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. ...

Speleology in Kazakhstan

Shakalov on 11 Jul, 2012
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 salt dome is a dome-like intrusion of a mobile salt core into sedimentary rock [16].?

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KarstBase a bibliography database in karst and cave science.

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Isotopic compositions of strontium in river water of Guizhou karst areas, China
Abstract:
We have carried out a study on the variation of strontium isotope composition of river waters, Wujiang and Yuangjiang River, in karst areas of Guizhou Province, China. The results obtained permit us to characterize the geochemistry of the river draining karst terrain and obtain a better understanding of main controls of catchment geology, chemical weathering of different rocks, and evaluate impact of human activities on the environment. The isotopic ratios of dissolved Sr in all rivers are between Sr-87/Sr-86 = 0.7077 and 0.7110, totally lower than the weighted average of Sr-87/Sr-86 = 0.7119 for the world large rivers. The Wujiang River waters have Sr concentrations from 1.0 to 6.1 mu mol/L, while the Yuanjiang River waters have much lower Sr concentrations ranging from 0.28 to 1.3 mu mol/L. Most of the river waters from the Wujiang river are characterized by low Ca/Sr and Mg/Sr, and Sr-87/Sr-86 ratios, in which a majority of river waters are of Sr-87/Sr-86 ratios lower than the average Sr isotope ratio (Sr-87/Sr-86 = 0.709) of present seawater. The higher Sr-87/Sr-86 ratios are observed in the river waters in the lower reach of the Wujiang River, where the lithology is dominated by detrital rocks and dolomite. The water from Yuanjiang River show higher Ca/Sr, Mg/Sr and Sr-87/Sr-86 ratios due to weathering of silicates, as compared to the river waters from Wujiang river