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Глас Рунета — Покупки в салонах сотовой связи

Здравствуйте, уважаемый читатель. По данным проведенного «Гласом Рунета» опроса российских пользователей, совершавших за последние пол-года покупки в интернет-магазинах сотовой связи, в числе наиболее популярных заказов лидирует профильная для этих торговых точек продукция, а именно — смартфоны (52% от числа всех покупок) и соответствующие им аксессуары (51, а также SIM-карты (44. Среди прочих покупок чаще всего встречались цифровые гаджеты, типа умных часов (21, модемы (13, планшеты (11) и ноутбуки (9. Ок.

Глас Рунета — Интернет вещей

Здравствуйте, уважаемый читатель. Посредством интернета стало возможным управлять многими вещами. Объединенные сети из компьютеров, планшетов и смартфонов уже никого не удивляют, промышленное оборудование, управляющееся из единого центра также давно не новинка. А в скором будущем планируется объединить в единую концепцию бытовые приборы умного дома, которые будут угадывать желания владельцев и выполнять возложенные на них функции при помощи запрограммированного девайса. Перечисленные возможности — это мир .

Глас Рунета — TV парк 2020

Здравствуйте, уважаемый читатель. Ревизия домашнего телевизионного оборудования, которую пришлось провести участникам проведенного «Гласом Рунета» онлайн опроса, показала, что 87% российских интернет-пользователей и членов их семей используют дома для просмотра телевизионных каналов, передач стационарный телевизор. В большинстве (76) случаев это жидкокристаллические LCD/LED, а в 12% — плазменные устройства. Только 12% устройств остаются классическими кинескопами. При этом, в расчете на одну представленную .

Глас Рунета — TV парк 2020

Здравствуйте, уважаемый читатель. Ревизия домашнего телевизионного оборудования, которую пришлось провести участникам проведенного «Гласом Рунета» онлайн опроса, показала, что 87% российских интернет-пользователей и членов их семей используют дома для просмотра телевизионных каналов, передач стационарный телевизор. В большинстве (76) случаев это жидкокристаллические LCD/LED, а в 12% — плазменные устройства. Только 12% устройств остаются классическими кинескопами. При этом, в расчете на одну представленную .

Глас Рунета — С физкульт-приветом

Здравствуйте, уважаемый читатель. По данным проведенного «Гласом Рунета» онлайн опроса 2836 пользователей интернета, 45% среди них время от времени, по возможности дают себе спортивную нагрузку, чтобы «быть в форме. Около 12% посещают фитнес-центр, спортзал или/и бассейн, 8% занимаются спортом на «почти, а 1% на «вполне» профессиональном уровне. Лишь 11% опрошенных не занимаются спортом и не планируют этого делать. Около 21% опрошенных хотели бы, но не имеют возможности заниматься спортом, прежде всего, из.

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Глас Рунета — Алкоголь по вызову

Здравствуйте, уважаемый читатель. По данным онлайн опроса, проведенного «Гласом Рунета» накануне и во время новогодних каникул, почти 16% пользователй за последние 6 месяцев покупали алкоголь через интернет или мобильный телефон. При этом, 77% производили закупки лично для себя, 11% — для своей компании или ее клиентов, а 12% для других людей. Преобладали закупки в объеме 1-3 бутылок (60) и 4-6 бутылок (28) в ценовой категории до 1 тыс. рублей за бутылку (49) и 1-3 тыс. рублей за бутылку (38. Основной цель.

Глас Рунета — Настроения Рунета (волна 15)

Здравствуйте, уважаемый читатель. «Глас Рунета» продолжает вести мониторинг настроений российских интернет-пользователей. Мы регулярно предлагаем своим читателям и сторонним пользователям Рунета ответить на серию вопросов, каждый из которых затем анализируется не изолированно друг от друга, а в составе интегральной оценки социальных, политических, экономических настроений. Методика построения Индекса Социальных Настроений Метод анализа социальных процессов в обществе, основанный на построении индексов соци.

Глас Рунета — Эмиграционный потенциал

Здравствуйте, уважаемый читатель. Сколько среди российских интернет-пользователей потенциальных эмигрантов? Как показали данные онлайн опроса, проведенного «Гласом Рунета» среди 1197 взрослых пользователей, постоянно живущих в России и обладающих российским гражданством, около 9% «определенно» и 21% «скорее» желали бы уехать за рубеж на постоянное жительство. Напротив, около 38% «определенно» и 26% «скорее» не имеют такого намерения. Доля российских пользователей, представляющих активную интернет-аудиторию.

Большая скидка на подписку сигналов от WinOptionSignals

SLOVAИKA JAMA
— 1320 m
The second pit in Croatia

View at Mali kuk (arrow marks the entrance of Slovaиka jama). Photo: D. Bak№iж

Speleological exploration of Slovaиka jama
Darko Bak№iж, Branko Jalѕiж, Branislav ©mida,
Damir Lackoviж, Dalibor Paar

During the field survey, on July 28th 1995, two Slovak cavers, B. ©mida and M. Griflik, found entrance into Slovaиka jama (Slovak Pit). After the exhausting research that lasted nine days, the Slovak cavers managed to descend 516 m (1692 feet) deep. During the research a horizontal channel was spotted at -350 m (1148 feet) but due to the lack of time it was postponed for the next year.

The entrance to Slovaиka jama. Photo: Dalibor Paar

In the course of the summer 1996, the Slovak cavers, with the fellow cavers from the University Mountaineering Association «Velebit», continued the exploration of Slovaиka jama in the horizontal channel, 350 m deep. Three weeks later, the cavers descended 1000 m (3280 feet) deep. Croatobranchus mestrovi — endemic leech was found in Slovaиka jama. In August 1996, a group of cave explorers from Zagreb Speleological sections “Velebit” and “®eljezniиar” in cooperation with the Croatian Natural History Museum descended 570 m into the pit for the purpose of gathering the specimens of leeches for the scientific research. Although the leeches were not found at this time, the remains of new type of coleopter were found.

SPELEOLOGICAL EXPEDITION SLOVAИKA JAMA 1998.

In order to continue the exploration of the pit, in the period from July 25th till August 15th 1998, a joint Croatian-Slovak expedition “Slovaиka jama ‘98” was assembled under the leadership of Darko Bak№iж and Branislav ©mida. 30 Croatian and 15 Slovak cavers participated in the expedition. The main objective was the continuation of the exploration of Slovaиka jama in two separate channels. The Slovak cavers continued with the exploration in the hall “Pompeii” at depth of 1000 m, while the “Kankulovski channel” at -587 m (the continuation of this channel is called “Velebni channel”) was explored by the cavers from “Velebit”. Members from several other speleological associations also participated in the exploration and those are the following: SO HPD ®eljezniиar from Zagreb, SO HPD Japetiж from Samobor, SD Had from Poreи and SO HPD Dubovac from Karlovac.

Bivouac II at the depth of -1225 m. Photo: Dalibor Paar

SPELEOLOGICAL EXPEDITION SLOVAИKA JAMA 1999.

In 1999, Slovaиka jama was explored during the weekends, from 16th – 18th of July and in the duration period of Croatian-Slovak speleological expedition “Slovaиka jama 99” from July 24th till August 8th. Expedition’s base camp (unlike the previous years) was situated on the north-west edge of Veliki Lubenovac at the foot of Mali kuk. Main reasons for the relocation of the camp were shorter approach to the pit which relieved the transportation of equipment and setting up of telephone wire and the isolation of the explorers from the numerous visitors of Veliki Lubenovac during the summer months. During the expedition 28 cavers altogether entered the pit, 21 of them from SO Velebit along with 3 cavers from SO ®eljezniиar and one from SK Had, SO Dubovac and SO Malaиka. Apart from 17 Slovak cavers, two cavers from Slovenia also participated in the action. At the very beginning of the expedition a large amount of rain fell creating numerous reservoirs and small waterfalls which obstructed and slowed down the exploration. During the expedition, two bivouacs were set in the pit one 376 m deep and the other 1254 m (4114 feet), which is the deepest bivouac in Croatia so far. Telephone connection was installed from the upper bivouac to the deeper one which enabled the timely informing on the weather conditions on surface, needs for materials and food and the progress of the underground exploration. In order to avoid unnecessary entering and going out from the pit it was decided to form two teams made of three members working in 12-hour shifts – one team would sleep in the bivouac and the other would explore new channels. South-east channel was explored reaching the siphon on -1301 m (-4268 feet). In the western part of the hall at the depth of 1225 m (4019 feet) the cavers entered the channel, later called “Hrskavi” and from there passed through a narrowing into “Limbo channel” and lowered themselves to unpassable narrowing on -1286 m (-4219 feet) in meander O№trica.
In the same year, the Slovak cavers setup two bivouacs on -360 m (-1181 feet) and -665 m (-2181 feet) and continued the exploration in “Hermanova studna”, which they deepened to -530 m (-1738 feet), (where they came across an unpassable narrowing), and in “®umpa channel” where they descended to -866 m (-2841 feet) in “Novodubnicka studnja” channel and to a branch on -850 m in the branch “Ta-ta”. Further exploration was cancelled because the time envisaged for the duration of the expedition expired (Bak№iж 2001).

Biospeleologist prof. Dr. Boris Sket from Ljubljana University (Slovenia) took a part in expedition to collect specimen of endemic leech (Croatobranchus mestrovi) for DNA analysis.

(left) Pokojna shaft (P50). Photo: V. Boѕiж
(right) In meander at -560 m. Photo: D. Bak№iж

SPELEOLOGICAL EXPEDITION SLOVAИKA JAMA 2002.

Speleological section of University Mountaineering Club «Velebit» organised the fifth expedition in Slovaиka jama, in the period from July 27th till August 11th 2002. This expedition was performed with the support of Sjeverni Velebit National Park and the Speleological Committee of the Croatian Mountaineering Association. 21 caver from SO PDS Velebit, one from SO HPD ®eljezniиar, two from SO HPD Mosor, five Polish and one Belgian caver participated in the exploration of Slovaиka jama. Approximately 20 more cavers secured the logistical support at the surface. Expedition was lead by Darko Bak№iж. Semi submerged channel 105 m long at the end of the pit was explored.

On the Bivouac II in the moments of rest.
P hoto: Marija Maиe№iж

The depth of the pit was increased for 19 m and now amounts to 1320 m which places Slovaиka jama at 18th place in the world. The channel ended with a siphon which made any further exploration with the use of classic speleological techniques impossible. In order to achieve this very demanding exploration in the pit regarding the logistics and speleology, two underground camps were built 350 m and 1225 m deep. Two teams interchanged in equipping the pit with ropes, exploration and dismantling. Total amount of working hours done in the pit was 1547 of man-hours. Extremely bad weather conditions (large amount of rain) made the work and this expedition very hard and also one of the most demanding and most dangerous expeditions so far (Bak№iж 2002).

Preparations before entering Slovaиka jama.
Photo: D. Bratu№ek

Bahun, S. 1974: The tectogenesis of Mt. Velebit and the formation of Jelar deposits. Geolo№ki vjesnik 27, Zagreb : 35-51.

Bak№iж, D., Paar, D., 2006: Croatia and the Deep Caves of Northern Velebit. Alpine Karst, vol 2., ed. J. & T. Oliphant, 105-124, Cave books, Dayton, USA.

Cigna, A.A., 2002: Modern trend in Cave monitoring. Acta carsologica 31/1, 35-54, Ljubljana.

Herak, M. & Bahun, S. (1979):

Hill, C. & Forti, P. (1997): Cave minerals of the World

Kuhta, M., Bak№iж, D., 2001: Karstification Dynamics and Development of the Deep Caves on the North Velebit Mt. – Croatia. 13th Internatinal Congress of Speleology, 1-4, Brazil.

Lackoviж, D., ©mida, B., Horvatinиiж, N., Tiblja№, D., 1999: Some geological observations in Slovaиka jama cave (-1268 m) in Velebit mountain, Croatia. Acta carsologica 28/2, 113-120, Ljubljana.

Lackoviж, D. (1993): Lukina jama u sjevernom Velebitu — najdublja jama Hrvatske; Vijesti Hrvatskog geolo№kog dru№tva.

Please cite this article as: Darko Bak№iж, Branko Jalѕiж, Branislav ©mida, Damir Lackoviж, Dalibor Paar: The explorations of Slovaиka jama on Northern Velebit, Croatia. Croatian speleological server, public.carnet.hr/speleo, 2008.

Improvised bivouac at -1200 m. Photo: Darko Bak№iж

Preparation of phone line between Bivouac II and the surface. Photo: Dalibor Paar

Lunch at Bivouac II. Photo: Marija Maиe№iж

Photo: Marija Maиe№iж

Photo: Ana Katarina Sanseviж

Photo: Ana Katarina Sanseviж i D. Bak№iж

The entrance. Photo: D.Paar

Return from the pit. Photo: Dalibor Paar

Cleaning after expedition. Photo: Dean Bratu№ek

In the camp at Veliki Lubenovac. Photo: Dalibor Paar

The view from Mali kuk towards V. Lubenovac. Photo: Dean Bratu№ek

NACRT, MORFOLOGIJA, GEOLOGIJA, BIOLOGIJA JAME

Location: Mali kuk, NP Sjeveni Velebit, Croatia

Horizontal length: 2519 m

Explored by (1995.-2002.): SO PDS Velebit, SO HPD Dubovac,
SO HPD ®eljezniиar, SO HPD Mosor, SO HPD Japetiж,
and Slovak speleologists

Topo: Brano ©mida, Darko Bak№iж,
Damir Lackoviж,Miro Sova, Jagoda Muniж,
Jozef Ondru№ka

Measured by: Karol Ky№ka, Miro Sova, Tanja Bizjak,
Ana Bak№iж, Branko Jalѕiж, Darko Troha,
Andrej Stroj, Dalibor Paar, Darko ©tefanac,
Ana Katarina Sanseviж, Ronald ®eleznjak

3D view of Slovaиka jama by D.Bak№iж and M. Andreis.

Profile of Slovaиka jama.

Plan of Slovaиka jama.

Entrance into Slovaиku jamu is located at 1520 m (5000 feet) above-sea on the north-eastern part of the great karst sinkhole behind 1565 m elevation of Mali kuk in the direction of north-west. The climb lasts for 45 minutes.

Entrance to Slovaиka jama. Photo: D. Paar and D. Bak№iж

©mida (1996, 1997, 1998, 1999), Bak№iж (1997, 1998, 1999), Bak№iж and other (1999) provide description of Slovaиka jama

Slovaиka jama has a cave like entrance facing south. Entrance hall with a large stone blocks is named “Horal”. In the hall there is a narrowing which can be reached via two small jumps (4 and 3 m). The entrance in the first vertical drop (14 m) is through the narrowing called “Fuиak”, where a strong circulation of air is noticeable. A small caved passage splits from it in the direction of south-east. Entrance of the vertical drop “Pokojna” (50 m) is in the opposite direction through a narrow crack. Before entering this vertical it is there is a parallel vertical drop to be found under the stone blocks ending after 26 m and is connected with the vertical “Pokojna” — thus represents an alternative entrance into “Pokojna”.

The vertical drop of “Pokojna” ends with a tilted hall with a vertical “Grepova” at its end. Chimneys are arising from the vertical in the direction of south and northward a narrow meander stretches with two small jumps. After the first jump there is a passage through which the Slovak cavers climbed back in 1995 and reached the 24 m deep vertical. Afterwards they arrived in “Hrncovi” – a tight meander with cascades ending with a narrowing which cannot be passed.

After the long jump through a long crack it is possible to reach the entering meander where, through a crack on the floor (Uиko), the entrance into 195 m deep vertical drop “Cez celu zem” is situated. The drop is cut at its upper part with a shelf containing a muddy pond (60 m). At approximately half a length of the vertical drop “Cez celu zem” there is an opening leading to a parallel vertical (Kam?), ending with a meander which cannot be passed. The width of this vertical is between 3 and 6 m, and the length is in some places up to 20 m.

The vertical “Cez celu zem” ends with a hall 300 m deep, from there across a short narrowing named “Eriksan” it joins with the following vertical “Poseidon” (213 m). The vertical “Poseidon” ends with a hall 14 x 6 m large and 30 m high. Up till this part the pit is 516 m deep, while its horizontal projection in the direction of south is over 70 m long.

In the upper third of the vertical “Poseidon”, at the depth of 349 m, there is an entrance to a horizontal channel — a new part of the pit. The horizontal channel, whose bottom is covered with stone blocks and layers of red clay, is starching in the direction of northwest. After 15 m there is a narrow passage in which the strong flow of air is present. Behind the passage the channel splits into two parallel arms which are later joined in the place named “Koridor”. The north arm, filled with layers of clay, separates its self before the 4 m jump and contains a large number of bat bones. Other arm transversely descends after the jump up to -360 m, where, back in 1998, the first Slovak bivouac was situated, behind the blocks of stone. The pit is at this point extremely indented and the two most promising parts are “Иrevo” and “Kankulovska vetva” which continue into “Velebni channel”.

Entrance to a horizontal channel at -349 m. Photo: Darko Troha

Just before the Slovak bivouac on -360 m, there is a crack on the floor through which it is possible to enter a channel named “®umpa” that runs parallel with “Velebni channel”. Descending through the verticals of 43 m, 3.5 m of 67 m one can arrive to the narrower part on -490m, called “Uѕina Pionierska Odysea”. Next is the vertical of some 24 m, where a spacious vertical appears from a narrow meander. The vertical is named “Adriana”, 156 m long. At its bottom, at the depth of 665 m, in the only possible spot on the very moist shelf the Slovak carvers’ bivouac was situated. After the bivouac, verticals of 45 m, 37.5 m and 50 m continue where at the depth of 786 m the channel splits into two arms: the dry one containing verticals of 19 m, 15 m and 17.5 m ending with a narrowing on -866 m, and the wet one, descending with a vertical of 46 m up to -850 m, where it also ends with a narrowing.

Photo: Ana Bak№iж

Behind the Slovak bivouac (-360 m), the horizontal channel is ended with a hall (starting point of “Koridora”). The hall is 10 m long and it is necessary to pass it via traverse in order to reach the continuation of the horizontal channel called “Fosilna Chodba”. After the traverse it is necessary to turn left, i.e. direction south by the channel from which various branches are extending for “Hermanova studnja”, “Cyklop” and “Tundra”. “Fosilna Chodba” is in fact a circular channel from which verticals are extended from all directions.
“Hermanova studnja”, with it verticals of 30, 18, 53, 47, 6 and 12 m, end with a narrowing at the depth of 530 m.

Fourth arm of the pit which exceeds the depth of 500 m is named “Tundra”. The one on -504 m ends with a narrowing which needs to be expanded. It is comprised of three larger verticals. First is called “Tundra” (52 m), on it, after a several small jumps (3 and 6 m) the vertical “Savana” (17 m) continues. Further on, via an extremely narrow and jointed meander, there is the last and a bit more spacious vertical “Tajga” (45 m). In “Fosilna Chodba”, from the northern side, after 10 m of depth, there is a jump which connects to “Koridor” and after 17 m there is a starting vertical of the part of the pit called “Иrevo”. The entering vertical is 54 m deep and after there are shorter jumps (10, 6, 6, 7, 4, 3, 2, 5 and 25 m) till the entrance to the vertical “Dѕungla” 100 m deep. The entrance into this vertical is very narrow. After the narrowing the channel expands at some parts up to 15 m. It has the oval shape containing a considerable water reservoir. At the bottom of the reservoir, at the depth of 598 m, there is a hall, 10 m in diameter with two entrances into meanders. In the north-eastern part of the hall there is an entrance into meander “©aleny” and in north-western part into meander “Motorola”.

All these meanders come together on approximately 650 m of depth. Meander “©aleny” descends sidelong with smaller cascades and jumps (6, 3, 6, 5, 2, 1, 5, 14, 13, 5, 10, 16, 18 m) till 700 m of depth. Inside the meander it is sometimes not possible to see the sealing and the roof because it is transitory only in its central part. Frequent narrowings (from 20 to 40 cm) and walls covered with layers of clay make it extremely demanding particularly when transporting the equipment. Because of the safety reasons and better orientation, the rope was set through the whole length of the meander. “©aleny” meander ends at the entrance in 170 m deep vertical “Patkov skok”. This vertical is at some places from 15 to 20 m, ending with a shelf containing a pond (-873 m). The channel runs further, meander like, till it reaches the next vertical (63 m). The last vertical is 42 m deep. This part of the pit ends with a large transversal hall “Pompeii” and the dimensions are 50 x 24 m. At this spot, the second Slovak bivouac was situated in 1998. At the lowest part of the hall, there is a narrow passage into “Garlik” which runs below the hall “Pompeii” and ends at the depth of 1022 m. From the last bolt in the vertical “Patkov skok” at the depth of 843 m it is possible to cross via transverse to the opening on the east side of the channel. Across the series of cascades and shorter jumps (9, 30, 10, 15, 50, 8 and 10 m), the channel called “Bituminozna №achta”, at the depth of 985 m, rejoins again with hall “Pompeji”.

In the other main arm of the pit, below the shortcut which connects the Slovak bivouac (-360 m) with “Fosilna chodba”, Koridor opens up – the space containing three halls in a sequence are joined with a smaller jumps (16, 10, 14 m). In the first hall on the depth of 376 m the first Croatian bivouac was situated in 1998. Other hall is the biggest one and it rises tilted towards south where a jump connects it to “Fosilna chodba”. The third and the smallest hall ends with a small chasm. Floors of these halls are covered with debris and stone blocks and the sealing, due to its height, cannot be seen. From the third hall via a traverse line across the chasm and 15 m high jump there is an entrance into a meander-shaped narrow channel which descends through the cascades for another 10 m till it reaches the narrowing “Vloиki”, 438 m deep. This is most unpleasant narrowing in the pit. After the narrowing and several smaller jumps (11, 2, 2, 6 and 9 m) the channel ends in a small hall from which a new narrowing enters into 91 m deep “Daѕdova studnja”. It is possible to avoid the narrowing by climbing from the upper side. “Daѕdova studnja” is cut at approximately half of its length by a 2 m long shelf. At the bottom of the vertical there is “Pijaviиni meander”. The place was reached by Slovak cavers in 1996. From this place till the end of the pit “Velebni channel” follows. At the very beginning of the meander in its northern arm, sidelong towards up, there is a small shelf 2.5 x 2 m, where back in 1998 at the depth of 557 m another Croatian bivouac was situated. Meander, in which the ceiling cannot be seen, or where instead of the ceiling there are wedged stone blocks, drops diagonally with series of cascades and jumps (2,5, 6, 15 m) till it reaches 4 m long shelf with the water cascades. Next, there is a 43 m long vertical leading up to the entrance into “Fifi” meander. Narrow and rugged 235 m long “Fifi” meander is starched from 636 till 717 m of depth. That depth is similar to the depth of “©aleni” meander.

Fifi meander. Photo: D. Lackoviж, D. Bak№iж

As opposed to the “©aleni” meander, “Fifi” meander at its bottom can be completely walked through and the ceiling cannot be seen through the whole length of the meander. The rope is required only in two places (2 and 8 m). After the meander there is a vertical of 57 m with two smaller shelves. At the bottom of the vertical there is a small hall after which there is a jump of 7 m leading to the passage “Prolaz pje№иanog sata”. From here through a narrow meander, new 7 m jump is reached and further on, through a couple of jumps (8 and 21 m) and small shelves, there is a small hall “Rifljaиa”. From it, there is an entrance in 124 m deep vertical whose central part contains 60-meter overhanging rain protrusion with the channel diameter up to 10 m. The very bottom the vertical contains several short shelves. On this vertical, till the first bigger shelf, the 92 m vertical continues. Behind it there is another smaller one (17 m). At the depth of 1060 m the place expands into two halls mutually connected with 13-meter jump. The first one, because of the large cistern, it is called “Ki№na” (Rainy) and it is covered with stone blocks among which a small pound is situated. The other one is covered with detritus and contains several larger stone blocks at the entrance to the next vertical. From here till the its bottom “Vodeni svijet” extends as a whole and with the series of verticals (28, 48, 5, 3, 23, 27 i 13 m), cascades and ponds reaches the depth of 1249 m. From it through the passage in the floor there is an entrance to a channel washed with a watercourse which after 18 m and at the depth of 1254 m expands into a hall named “Dvorana dubokih siga”. From “Dvorana dubokih siga” there are two channels: near the dripstones the channel continues in the direction of southeast and just before the dripstones the channel continues, by the passage in the floor, in the direction of north. The channel towards the northeast slowly ascends and after 30 m it abruptly turns towards north and starts to descend with a 3 m slope. At bottom of the slope it turns, again, towards northeast and retains this direction till the end. It is possible to continue onwards with a horizontal part of the channel, 45 m in length after which the channel ascends knee-like and then drops till it reaches the 28-meter jump. After the jump in the narrow meander there is a siphon at the depth of 1301 m which can be reached through a narrow meander. The average width is approximately between 1 and 2 m. The channel with a water course continues, with a passage in the floor, in the hall “Dvorana dubokih siga” and descends to the pond situated at the depth of 1268 m.

Exploring the channel towards a siphon at -1320 m. Photo: D.Bak№iж

After the pond where the ceiling descends at 25 cm from the surface of water the washed out channel curves in the shape of the letter «Z» and turns towards north. Through 3.5, 7 and 10 m, and 18 m jumps and the long slope the -1320 m (12530 feet) siphon can be reached which is at the moment the deepest examined area in the pit. The siphon itself can be examined by diving but because of the small space, narrow channel and large depth this would be an extremely demanding feat. Apart from the siphon, other dripstones have been found which represents the deepest finding of dripstone formations in Croatia. Considering that water passes through the whole channel, small ponds are formed below the verticals, and the stone wall of the channel is washed out. The width of the channel is approximately from 0.5 up to 2 m while its height if from 0.5 to 3.5 m.

Hrskavi channel. Photo: Dalibor Paar

In the southwest part of the hall, at 1225 m of depth, there is an entrance to the channel coated with clay. The entrance part of this unit is “Hrskavi channel” which in general extends to the north at its beginning and afterwards turns in the direction of west. “Hrskavi channel” is connected to “Limbo channel” with a narrowing, after which, there is a shelf and a jump 8 m high for which the use of rope is needed (descending by “Frenchman”).

Passage to Limbo channel. Photo: Ana Bak№iж

“Limbo channel” is 3 to 5 meters wide, at some places even 7 m and after the rather narrow “Hrskavi channel” leaves an impression of spaciousness. It ends with a lowered ceiling, i.e., caved stone blocks through which one could crawl through but because of very small size of the passages crawling can be dangerous. The flow of air is felt between the blocks indicating the existence of space behind it. Following the week flow of the water 60 m after the stated 8-meter jump through the crack in the floor from the channel “Limbo” there is an entrance to “Meandar O№trica”. At the beginning this is a narrow and muddy meander with sharp rocks after which four jumps (10, 7, 7 and 9.5 m) follow. Behind it, there is a short meander ending with a turn and unpassable narrowing at the depth of 1286 m.

Passage to meander O№trica. Photo: Dalibor Paar
Rainy doors. Photo: Ivica Жuku№iж

(left) Speleothems in Fifi meander (at -700 m). Photo: Dalibor Paar
(right) Coralloids. Photo: Darko Bak№iж

In the Hall of deep speleothems, -1268 m. Photo: I.Жuku№iж

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