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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 lecontite is a cave mineral - (nh4,k)na(so4).2h2o [11].?

Checkout all 2699 terms in the KarstBase Glossary of Karst and Cave Terms

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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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Geochemical and mineralogical fingerprints to distinguish the exploited ferruginous mineralisations of Grotta della Monaca (Calabria, Italy), Dimuccio, L.A.; Rodrigues, N.; Larocca, F.; Pratas, J.; Amado, A.M.; Batista de Carvalho, L.A.
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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Search in KarstBase

Your search for adriatic sea (Keyword) returned 22 results for the whole karstbase:
Showing 16 to 22 of 22
HYDROGEOCHEMISTRY OF COASTAL CARBONATE AQUIFER IN LUCIJAPORTORO (GULF OF TRIESTE, NORTHERN ADRIATIC SEA, SLOVENIA), 2009, Bren?i? Mihael
The 801 m deep artesian borehole Lu-1 in Lucija near Portoro (SW Slovenia) was drilled in 1994 on the coast. The borehole is constructed in flysch in the upper 257 m and continues in limestone below that depth. The groundwater has a very distinct chemistry. High concentrations of iron (10.4 mg/l), sulphide (15 mg/l), and chloride (6700 mg/l) are representative showing that mixing of seawater (31%) and groundwater (69%) under highly reducing conditions is present in the confined carbonate aquifer. Groundwater flow is extensive and deep, fed by higher elevation precipitation to the northeast.

FLANK MARGIN CAVE DEVELOPMENT IN CARBONATE TALUS BRECCIA FACIES: AN EXAMPLE FROM CRES ISLAND, CROATIA, 2010, Otoni?ar Bojan, Buzjak Nenad, Mylroie John & Mylroie Joan
Plava Grota, Cres Island, Croatia, is a flank margin cave developed in a coastal setting in talus breccia facies. The internal cave geometry of small entrances, intersecting adjacent chambers, remnant dissolutional bedrock pillars, and low arches matches diagnostic features used to separate flank margin caves from epigenic stream caves on one hand, and sea caves on the other. Plava Grota is found, along with adjacent smaller caves, solely in a breccia facies that is most probably of Pleistocene age. This breccia is comprised of clasts derived from diagenetically mature, or telogenetic, Cretaceous carbonate rocks. The clasts are loosely cemented by vadose calcite cements. The breccia facies provide a three-dimensional porosity and permeability structure that behaves hydraulically in a manner similar to the high primary porosity and permeability of young eogenetic carbonate rocks in settings such as the Bahamas or Puerto Rico, and the many flow paths found in highly-tectonized telogenetic carbonate rocks in New Zealand. Plava Grota is the first described flank margin cave from the coastal carbonate rocks of the Adriatic Sea. According to present sea-level position in relation to the cave, fresh-water springs in and adjacent to the cave, general tectonic subsidence of the area and Quaternary eustatic sea-level fluctuations, we propose the hypotheses that the cave was primarily formed during the MIS 5e sea-level highstand.

The study of Karstic aquifers geodetic measurements in Bus de la Genziana station − Cansiglio plateau (northeastern Italy), 2011, Barbara Grillo Carla Braitenberg Roberto Devoti & Ildikò, Nagy

We propose an interdisciplinary study of karstic aquifers using tiltmeters and GPS observations. The study region is located in northeastern Italy, in the seismic area of the Cansiglio Plateau. The Zöllner type Marussi tiltmeters are installed in a natural cavity (Bus de la Genziana) that is part of an interesting karstic area of particular hydrogeologic importance. The Livenza river forms from a number of springs at the foothills of the karstic massif and flows through the Friuli-Veneto plain into the Adriatic Sea. Comparing the tiltmeter signal recorded at the Genziana station with the local pluviometrical series and the hydrometric series of the Livenza river, a clear correlation is recognized. Moreover, the data of a permanent GPS station located on the southern slopes of the Cansiglio Massif (CANV) show also a clear correspondence with the water runoff. Here we present the hydrologic induced deformations as observed by tiltmeter and GPS. After heavy rain events we record rapid deformations both by tiltmeters and GPS corresponding to the rainfall duration. In the following days a slow geodetic motion recovers the accumulated deformation with a distinctive pattern both in tilt and GPS data, which correlates with the runoff of the karstic aquifer. The purpose of this research is to open a new multidisciplinary frontier between geodetic and karstic systems studies to improve the knowledge of the underground fluid flow circulation in karstic areas. Furthermore a better characterization of the hydrologic effects on GPS and tilt observations will have the benefit that these signals can be corrected when the focus of the study is to recover the tectonic deformation.


Dinaric Karst: Geography and Geology, 2012, Zupan Hajna, Nadja

The Dinaric karst is geographically and geologically the carbonate part of the Dinaric Mountains on the Balkan Peninsula between the Adriatic Sea and the Pannonian Basin. The Dinaric karst is a “classical” karst for many reasons: the term karst (kras) was derived from its northwest part (Kras plateau); from the region originate such international terms as polje, uvala, doline, kamenitza, and ponor; and it is also the landscape where karstology and speleology as sciences were born. The most characteristic relief forms are high karst plateaus and numerous poljes elongated in a northwest–southeast direction (“Dinaric” direction), leveled surfaces, dolines, large and deep caves, sinking rivers, and abundant springs. According to different geological, hydrological, climate, and geomorphic characteristics, the Dinaric karst can be divided into three belts parallel to the Adriatic Sea: low coastal Adriatic karst, high mountain karst, and low continental inland karst. The Dinaric karst is known also as a limestone desert, a bare rocky landscape that results from climate conditions and especially because of intense land use in past centuries.


Karst, 2012, Jones William K. , White William B.

The word karst is a Germanized form of the name of a carbonate plateau that is situated above the Adriatic Sea immediately to the east of Trieste, Italy. The term has been generalized as a label for any similar region. The distribution of karst landscapes over the Earth’s surface to a large extent follows the distribution of carbonate (limestone and dolomite) and gypsum rocks, and together these make up about 15% of the Earth’s land area. Karst regions are characterized by a unique set of landforms including closed depressions, deranged drainage, sculptured bedrock surface, and residual hills. Karst regions also differ from other geomorphic regions by the presence of cave systems in the subsurface. In general, surface karst features are more pronounced in regions where the caves have direct hydrologic connections to the land immediately overlying the caves and the surface and subsurface features develop more or less simultaneously.


Drowned Karst Landscape Offshore the Apulian Margin (Southern Adriatic Sea, Italy), 2012, Taviani M. , Angeletti L. , Campiani E. , Ceregato A. , Foglini F. , Maselli V. , Morsilli M. , Parise M. , Trincardi F.

The south Adriatic shelf offshore of the predominently carbonate Apulian coast is characterized by a peculiar rough topography interpreted as relic karst formed at a time of lower sea level. The study area covers a surface of about 220 km2, with depths ranging from 50 to 105 m. The most relevant and diagnostic features are circular depressions a few tens to 150 m in diameter and 0.50 to 20 m deep thought to be dolines at various stages of evolution. The major doline, Oyster Pit, has its top at about 50 m water depth and is 20 m deep. It is partly filled with sediments redeposited by episodic mass failure from the doline’s flank. Bedrock samples from the study area document that Plio-Pleistocene calcarenites, tentatively correlated with the Calcarenite di Gravina Fm, are a prime candidate for the carbonate rocks involved in the karstification, although the presence of other units, such as the Peschici or Maiolica Fms, is not excluded. The area containing this subaerial karst landscape was submerged about 12,500 years ago as a result of the postglacial transgression over the continental shelf.


Late Holocene widening of karst voids by marine processes in partially submerged coastal caves (Northeastern Adriatic Sea)., 2012, Furlani Stefano, Cucchi Franco, Biolchi Sara

 

The coastal scenery of the Northeastern Adriatic sea is widely interested by caves and related coastal features, which are developed in correspondence of geological weaknesses of sea cliffs. We present the preliminary surveying of five partially submerged coastal caves cut in limestone cliffs, relating the dissolutionally widened vadose karst voids and the present- day forms. The analysis pointed out two well-defined morphological zones inside the caves. The boundary between the zones roughly coincides with the mean sea level. The submerged zone is mainly affected by abrasion processes on the bottom and the lateral walls, while the emerged zone is interested by karst processes and collapse of blocks from the roof. Their effects produce a bell-shaped cross-section, in which the submerged part of the caves is significantly larger than the emerged one. Considering the tectonic behaviour of the area inferred from literature the caves were flooded about 6 ka BP, when marine processes started to shape their submerged part. Our results allowed, in particular, to evaluate processes shaping the partially submerged coastal caves in the Northeastern Adriatic Sea after the marine transgression. Considering the very preliminary surveyed data, we suggest that the early phases of cave evolution was mainly dissolutionally-controlled and produced the widening of pre-existing joints or faults, as demonstrated by the occurrence of karst features in the upper part of the caves. Recent evolution is instead marine-controlled and the widening is mainly due to the overlapping of marine processes effects on karst voids, since they are closely related to the Late Holocene sea level rise


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