|GATAČKO POLJE - ГАТАЧКО ПОЉЕ||
The Devon Karst Research Society.
The Karstography of the DINARIC KARST IN BOSNIA AND HERZEGOVINA
Part 5.3. Eastern Herzegovina.
GATAČKO POLJE - ГАТАЧКО ПОЉЕ
Gacko Polje, BiH-RS Trebinje Region - Gacko Municipality.
Updated 20 May 2007.
Section 6. Webpage Contents :
on the underlined Links.above
to move down to the Sections quickly.
Section 6.0.1. PONORS - ПОНОРИ - PONORI
kod selo Srđevići - код село Срђевићи :
The observable Ponor located in the vicinity of selo Srđevići is :-
"Srđevići", (alternative name = Ponor
details about this ponor and its associated Ponor Mill are given below.
interesting ponor area is now mostly abandoned and growing wild.
A return visit is planned to record further underground details.
Polje - Гатачко Поље
("JAMA") PONOR - PONOR "SRĐEVIĆI" ("JAMA") -
ПОНОР "СРЂEВИЋИ" ("ЈАМА") :
GPS Co-ordinates :..43° 10' 02"N. : 018° 28' 24"E. [5 Sats].
This is situated at an elevation of 924.92m. asl. and is located in the Malo Polje on the right bank of the Rijeka Mušnica, several hundred metres downstream of the village of Srđevići. The position of the ponor is at the north-eastern foot of Osoje and is clearly indicated on the Map above.
At medium to high water levels, this is the first of a whole string of ponors draining the Gatačko (Malo) Polje. At absolute low water level, it is left high and dry. Reputedly, it can absorb water approximately at the rate of 65m3 sec-1., although we have our doubts about this.
The main accessible entrance area of this ponor cave contains the remnants of water-control features associated with a ponor mill actually located well inside at the rear of the entrance chamber. We have no name for this ponor mill.
Beyond the entrance chamber behind the ponor mill, the inside of the ponor cave is quite constricted. We were still looking for reason why one of the alternative names for this ponor was "Jama". So far, it was mostly horizontal. After crawling through the rock-floored first constriction (see Photo 220.127.116.11. below), the passage opened out very slightly and various vertical phreatic tube passages were observed leading off to somewhere below. The first one on the left was steeply inclined and was soon followed by another two in the floor of the passage straight ahead. Here were no cave sediments, just bedrock limestone.
view of the small passage leading off above and behind the ponor mill structure
at the back of the entrance chamber.
view of the terminal shaft.
Beyond the third (terminal)
shaft in the floor, the short horizontal section ended abruptly, (see
Photo 18.104.22.168. above).
Clearly, there were no other
visitors in this ponor, so a few rocks were thrown down into each of these
vertical shafts with the result that we could not hear anything having
reached the bottom of any of them.
The subsidiary ponor, pictured in the two images above, was unapproachable due to the slippery white sediment slime and sludge in and around the small depression. Indeed, the River Mušnica at this point had broken through the thick, deep sediment-sludge banks and was pouring this filth directly into the underground. Note the sediment staining on the plant growth around the depression.
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