Karst Research Institute at ZRC SAZU, Postojna, Slovenia is searching a candidate for an AXA postdoctoral grant.
Thanks to efforts of Dr. Oana Moldovan from the Institutul de Speologie "Emil Racovita" (Romania), the entire content of the “Subterranean Biology” journal is now represented at the KarstBase and its “World Cave and Karst Science journals” sub-system
Currently, the Indonesian cavers running the mini project to show the distribution of caves in Indonesian karst. The project, so called CavesID, is a voluntary project gathering all the information about the caves in Indonesia.
The Journal "Speleogenesis and Evolution of Karst Aquifers" ceased publication with the Issue 12, 2012
A special ‘Featured Articles” section, a part of the online KarstBase bibliography database, is now organized in a separate page
Did you know?
That scallop is 1. a spoon-shaped hollow carved in a cave wall, floor or ceiling due to erosion by eddies in flowing water. scallops are commonly closely packed, leaving sharp ridges at the intersects. they range from 10mm to 1m in length and as a general rule the smaller they are then the faster flowing was the water that carved them. the scallops are generally asymmetrical, with their upstream end steeper than the downstream end - a useful indicator of paleo-flow direction in abandoned passages . 2. oval hollow having an asymmetric cross section along its main axis. scallops form patterns on the walls of caves and in streambeds and may be used to determine direction of flow of turbulent water, since they are steeper on the upstream side. commonly called flutes in america . synonyms: (french.) cannelure, vague d'erosion; (german.) in fliebrichtung des wabers ausgezogener kolk; (greek.) kilon ooithes; (spanish.) huella de corriente; (turkish.) degirmi, tarak. see also flute.?
Checkout all 2699 terms in the KarstBase Glossary of Karst and Cave Terms
Featured article from geoscience journal
A large number of uniform cone-shaped dissolution pipes has been observed and studied in Quaternary coastal calcareous arenites in Apulia and Sardinia (Italy) and Tunisia. These cylindrical tubes have a mean diameter of 52·8 cm and are up to 970 cm deep (mean depth for sediment-free pipes is 1·38 m). They generally have smooth walls along their length, are perfectly vertical and taper out towards their bottoms. Their development is not influenced by bedding nor fractures. Sometimes their walls are coated by a calcrete crust. Their morphology has been studied in detail and their relationships with the surrounding rocks and with the environment have been analysed. The perfectly vertical development is a clear evidence of their genesis controlled by gravity. The depth of the dissolution pipes can be described by an exponential distribution law (the Milanovic distribution), strongly suggesting they developed by a diffusion mechanism from the surface vertically downward. We believe dissolution pipes preferentially form in a covered karst setting. Local patches of soil and vegetation cause infiltration water to be enriched in carbon dioxide enhancing dissolution of carbonate cement and local small-scale subsidence. This process causes the formation of a depression cone that guides infiltrating waters towards these spots giving rise to the downward growth of gravity-controlled dissolution pipes. A change of climate from wetter phases to drier and hotter ones causes the formation of a calcrete lining, fossilizing the pipes. When the pipes become exposed to surface agents by erosion of the sediment cover or are laterally breached the loose quartz sand filling them may be transported elsewhere.