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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 active cave is 1. cave containing a running stream. 2. cave in which speleothems are growing. (less common and less desirable usage.) compare live cave [10].?

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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 postojnska jama (Keyword) returned 34 results for the whole karstbase:
Showing 1 to 15 of 34
The significance of E.A. Martel for Speleology in Slovenia., 1997, Kranjc Andrej
Three times Martel visited karst in Carniola: in 1879, 1893 and 1896. The importance of his visits and later publications lies in fact that he informed the francophone public about our karst and caves; his visit stimulated the introduction of new technical means into the then Austrian speleology (folding boat, portable telephone); in 1893 due to his researches Postojnska jama became the longest cave in Europe; public found out about existence of caving society Anthron, which was the first Slovene and Slav society of the kind; he set up the foundations of international speleological co-operation and included into it Austrian speleologists; he informed the public about Putick and his researches of karst underground; unknowingly he helped to introduce the term "karst" into francophone public.

Collapse chambers in Postojnska jama and their relations to geological structure, 1998, ebela, Stanka

Tectonic structure of Postojnska jama Cave System., 1998, Sebela S.

The dynamics of flowstone deposition in the caves Postojnska, Planinska, Taborska and Škocjanske, Slovenia , 1998, Gams Ivan, Kogovš, Ek Janja

The results of flowstone deposition measurements in the caves Postojnska, Planinska, Taborska and Škocjanska Jama of the Slovene karst are given. From 0 to 180 mg of CaCO3 are precipitated from 1 litre of percolation water. The drippings during one year yield average 40 g of flowstone out of 1 m3 of percolation water; in the case of Orjaki, Škocjanske Jame, the deposition is even higher. Comparison of measurements of percolation water flowing either over the speleothems or over sheets of glass in Postojnska Jama since 1963 have shown numerous factors controlling the flowstone deposition. The quantity of precipitated flowstone expotentially increases by the growth of speleothem when water washes larger surfaces of the speleothem. Gravimetric determination of flowstone deposition on sheets of glass (61x18 cm) gave in 34 years an average flowstone growth of 0.11 mm per year.


Radiation doses due to radon and progeny in the Postojna Cave, 1998, Vaupotič, Janja, Dujmovič, Petra, Kobal Ivan

In 1996 in the Postojna Cave etched-track detectors were exposed every month at five locations along the route of the guided tourist tour to measure average radon concentrations, and in every season radon, its progeny and equilibrium factor were continuously monitored for 5-10 days. The evaluation of the data revealed a negligible radiation dose for a visitor and yearly doses of up to 15 mSv for workers in the cave (guides, train drivers, maintenance workers, and kiosk workers). These high doses require the restriction of time spent by a worker in the cave and regular radon monitoring in the cave.


Bedding planes, moved bedding planes, connective fissures and horizontal cave passages (Examples from Postojnska Jama cave), 1998, Č, Ar Jož, E, Š, Ebela Stanka

In 3 examples of passage parts from Postojnska Jama their speleogenesis was studied. It was shown that they are formed along bedding planes, moved bedding planes and connective fissures. The advantage for speleogenesis of some bedding planes and moved bedding planes is represented with their connection into penetrative effective porosity in specific structural block.


Book Review: ''Tectonic structure of [the] Postojnska jama cave system'' by Stanka Sebela, 1999, Lowe D. J.

Age and Magnetism of Cave Sediments from Postojnska jama cave system and Planinska jama cave, Slovenia, 1999, Š, Ebela Stanka, Sasowsky Ira D.

We completed paleomagnetic analyses of 28 samples of cave sediments from 3 different locations in Postojnska jama cave system and one location in Planinska jama cave. These are the first published paleomagnetic studies of cave sediments from these caves. These sediments showed normal polarity, and were deposited during the Brunhes Normal Epoch (younger than 0,73 Ma). However, an additional more complex sediment deposit in an upper section of the Postojnska jama cave system, showed reverse polarity, probably indicating an age between 0,73 and 0,90 Ma.


Velika Jeršanova doline - a former collapse doline, 2000, Š, Ebela Stanka, Č, Ar Jož, E

The Velika Jeršanova doline (a.s.l.=535 m) is situated on the surface above the Postojnska Jama cave system. Its deepening undoubtedly interrupted the continuation of Pisani rov (a.s.l.=535,5 m) towards N. Through the Velika Jeršanova doline the Postojna anticline crest runs in the direction of NW-SE. The same direction has also the Jeršan fault. Strike and dip of thin bedded Turonian and Cenomanian limestones are disordered on the anticline's crest. The limestones dip 5-25°. The Velika Jeršanova doline today does not have the typical shape of a collapse doline. The main cause for the untypical collapse shape of Velika Jeršanova doline is its formation in the Postojna anticline crest, its shaping in thin bedded clay - rich limestones and intensive erosional lowering of the area. Regarding the actual shape of the slopes and outer edges, the Velika Jeršanova doline is a relic of a former well shaped collapse doline.


The cave in Postojna in Slovak literature before 1918, 2001, Lalkovič, Marcel

Mentions of Postojnska Jama can be found in the then Slovak periodicals before 1918 already. The greater part of them was published in Slovakia, some of them in Budapest or in Vienna (Domová pokladnica, Slovenské noviny, Lipa, Sokol, Pešt'budínske vedomosti, Obzor, etc.). They belong to the second part of the 19th century - the period when Slovak language was codified as a standard language. At that time the most important and maybe the most visited cave of the Monarchy attracted scientific sphere and common public alike. Therefore also Slovak periodicals tried to inform their readers.


Anthron Society (Postojna 1889 - 1911), the beginning of organised speleology in Slovenia, 2002, Kranjc, Andrej

In the middle of the 19th century caving and speleological activities were well developed in Kranjska (Carniola) already. F. Kraus took an interest in our karst by 1878. In 1879 he founded "Verein für Höhlenkunde" and a year later "Karst Comité". Soon afterwards he wanted to set up a branch of "Verein" at Postojna. In Planina he had 50 future members already. In summer of 1889 some villagers of Veliki Otok near Postojna discovered the entrance to so-called Otoška jama, making a part of Postojnska jama system. The dispute about the ownership and how to share the income of Postojnska jama aroused. And soon afterwards in Postojna the club Anthron was founded - a reaction to this discovery. Anthron was an exclusive club with limited number of members who must live in Postojna - and majority were members of Postojnska jama Cave (Managing) Commission. The Anthron members discovered an important part of Postojnska jama system, explored caves nearby and helped the best known speleologists of that time such as Kraus, Martel, Perko and Putick. When Speleological club was set up in Ljubljana and Perko announced the foundation of Speleological Institute at Postojna, the club Anthron was dismissed. Thus the documents prove that continuous organised speleological activity started in Slovenia in 1889.


Die alten Inschriften der Adelsberger Grotte/Postojnska Jama., 2003, Kempe, St.
[Slowenien]

Development of the underground railway system on the example of Postojnska jama, 2003, Č, Uk Alenka

The problem of making visits to Postojnska jama more comfortable and easier was solved in 1872 when the first railway was put in the cave. The path through the cave did not have many ascents or descents; therefore it was decided that the carriages in the cave could be "driven by manpower". After 1900 interest in visiting Postojnska jama increased. The Board of Postojnska jama constantly improved and "facilitated the cave traffic" and took care of the utmost comfort of the visitors. For all that, the small, manually operated railway was becoming less and less appropriate. The first test-drives with a locomotive were performed between April and June 1924. In April 1957 two new locomotives with batteries replaced the old, worn-out ones.


Early electric lighting in caves - Postojnska jama, Slovenia, 1883-1929, 2003, Shaw, Trevor R.

After some preliminary attempts in 1863, electric lighting was first used in Postojnska jama in 1883 for a visit by Emperor Franz Joseph. Alternative forms of bright light (lime-light in 1852, gas light in 1878) had been considered but not adopted. The permanent electric installation of 1884 was the third anywhere in the world. Its 12 arc lights were increased in later years. An "improved" system was fitted in 1901 but failed so often that it was replaced in 1906. An extensive new system was fitted in 1929. Errors in previous literature are corrected and much information published for the first time.


The underground post offices of Postojnska jama, Slovenia, 1899 - 1945, 2003, Shaw Trevor R. , Č, Uk Alenka

The only cave post offices to have been situated underground were in Postojnska jama. In 1899 the cave management, responding to the growing use of picture postcards, built a stone post office near Kongresna dvorana 500 m from the entrance. It was open by 15 August 1899, with a special "Adelsberger Grotte / Postojnska jama" cancellation authorised by the postal authorities. This building remained in use until 1927 (with the Italian "Postumia (Grotte)" postmark after 1922), when it was replaced by a new building 1,4 km inside the cave. Its last recorded use was 15 August 1945 when the cave was reopened under Jugoslav management.


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