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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 cave pearl is 1. carbonate concretion, usually of calcite, that is spherical or irregular in shape, with an internal structure of concentric banding round a central grain. pearls form in pools of saturated water disturbed by dripping water, so that they are commonly found beneath high avens. individual pearls may be lmm or many centimeters in diameter. movement of the larger ones may become impossible and they can then become cemented to the pool floor. some caves contain spectacular displays of cave pearls; in jackson's bay cave, jamaica, they cover large areas of passage floor behind low gour barriers [9]. 2. small concretion of calcite or aragonite formed by concentric precipitation around a nucleus [10]. synonyms: pisolite; pisolith; (french.) perle des cavernes; (german.) hohlenperlen; (greek.) speleomargarites; (italian.) perle di grotta; (russian.) pescernij zhemcug; (spanish.) perla de caverna; (turkish.) magara incisi; (yugoslavian.) pecinski biseri, jamski biseri.?

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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.
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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
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Your search for human-evolution (Keyword) returned 4 results for the whole karstbase:
Geologic Dating of Human Evolution in Asia, 1940, Terra Hellmut De,

Morphological affinities of the proximal ulna from Klasies River main site: Archaic or modern?, 1996, Churchill Se, Pearson Om, Grine Fe, Trinkaus E, Holliday Tw,
The Middle Stone Age (MSA) asociated hominids from Klasies River Mouth (KRM) have taken on a key role in debate about the origins of modern humans, with their craniofacial remains seen as either representing the earliest well-dated modern humans in southern Africa or orthognathic late archaic humans. Diagnostic postcranial remains from Klasies are few, but one specimen-a proximal right ulna from the lower SAS member-is useful For assessing the morphological affinities of these hominids. Canonical variates analysis using 14 proximal ulnar dimensions and comparative data from European, west Asian and African archaic humans, and Levantine Mousterian, European Upper Paleolithic, African Epipaleolithic and diverse recent modern human samples (many of recent African descent) were employed to assess the morphological affinities of this specimen. Results suggest an archaic total morphological pattern for the Klasies ulna. Analysis of diaphyseal cross-sectional geometry reveals an ulnar shaft with relatively thick cortical bone, but the specimen cannot be readily distinguished from Neandertals or early anatomically modem humans on the basis of shaft cross-sectional properties. If the isolated ulna from Klasies is indicative of the general postcranial morphology of these hominids, then the MSA-associated humans from KRM may not be as modern as has been claimed from the craniofacial material. It ii: possible also that the skeletal material from KRM reflects mosaic evolution-retention of archaic postcranial characteristics. perhaps indicating retention of archaic habitual behavior patterns, in hominids that were becoming craniofacially modern. (C) 1996 Academic Press Limited

Morphology of the border cave hominid ulna and humerus, 1996, Pearson O. M. , Grine F. E. ,
Hominid bones from Border Cave (BC) have been the subject of controversy with regard to the question of modern human origins. New dating assays suggest that while some of the BC remains are of comparatively recent age (i.e. < 20 kyr), several postcranial fragments derive from the Middle Stone Age (MSA) layers. Among the latter, a proximal ulna in comparable to one from the MSA at Klasies River Mouth, in that both have an archaic pattern of morphology in the relative height of the coronoid and olecranon processes. This configuration appears to characterize Neandertals, and is displayed also by more ancient African ulnae. The BC humeral diaphysis has moderately thick cortical bone, but us otherwise unremarkable. The proximal ulnar morphology might suggest that the MSA inhabitants of South Africa engaged in activities similar to those of Neandertals and other postcranially archaic hominids. If the modern-looking BC-1 cranium in contemporaneous with the BC postcranial bones, this would bear testament to the mosaic nature of human evolution. Alternatively, if BC-1 proves to be of recent derivation, and the postcrania are as old as the base of the BC MSA sequence has been claimed to be (c. 195 kyr), they might have been associated with more archaic crania (perhaps similar to Florisbad). Final resolution of these questions awaits determination of the absolute ages of the BC-1 cranium and the BC postcranial bones

U-series Dating and Human Evolution, 2003, Pike A. W. G. , Pettitt P. B. ,

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