Dombo N°1

Michael Laumanns - 28/11/2015

The cave consists of a main joint-controlled passage in N-S direction. The passage was enlarged by phreatic solution. The main passage has several branches, which are developed in EW direction. Some of them have daylight openings in their ceiling. One major side passage leads to the W and turns again into N-S direction forming a parallel passage to the main gallery. Ten sediment samples were taken from the cave for investigation of soil bacteria. In this context the temperature in the sediment (about 10 cm deep) was measured in the western parallel passage (22,1°C). An air temperature of 20°C was measured. The whole cave was filled with conglomerate sediments in the past, which were washed out in most recent time. All the walls of Dombo No. 1 are completely covered with an approximately 4 cm thick remaining layer of these reddish infillings. Different species of bats inhabit the cave. Beside a colony of about 1.000 Rhinolophides a small number of tiny Vespertilionides (presumably Miniopterus sp.) are present. No samples could be taken for determination purposes, although the locals use to hunt bats in the cave.