Speleologie na Holštejnsku,

výzkumy v letech 1966-1996

(Abstract from publication published to 30th years foundation organization)

 Czech version



This page has been published on the occasion of the thirtieth anniversary of the caving group Holstejnska, a member of the Czech Speleological Society. Proceedings are focused specially on carstic phenomena in Holstejn region. Most of the articles were written by non professional cavers. That means people caving for their hobby not for a profession. It concentrates on the latest exploration results.


Members of speleological club ZK ROH ADAST and military speleological group Brno came to make explorations in Holstejn area in 1966. They have discovered Holstejnska cave on 21st of August 1966. This discovery motivated members of both speleological teams to found a new speleological club named "Holstejnska vyzkumna skupina" for excavation in northern part of Moravian karst. This club have been transformed into local group of Czech speleological society No. 6-15 Holstejnska in 1979


Moravian karst is the largest karst territory in Czech republic and is situated on dividing line of two big geological units: Cesky masiv and Karpatska soustava. The interest domain of our speleological group is situated in the northern part of Moravian karst. There is a lot of overground and subterranean karst phenomenas in the devon limestones. Geological development of Moravian karst has been considerably complicated and is given by periodical sea floods and in meantime by different intensity of karst processes. Limestones were disturbed by tectonic processes. There is the biggest affluent of the outlet river Punkva in the interest domain of our speleogical group, the Bila voda creek (White water), according by the measurement from 1967 up to 1992 Bílá voda presents 40 % of water in Punkva river. Holstejn valley is semi-blind karst valley. In older geological epochs there were a big changes in area of lost creek Bila voda. The Holstejn valley was dredged in different epochs, filled and drained again. At present time there is a range of affluents of Bila voda creek in Holstejn valley comming from surface and from groundwater sources. Interest area of our group covers large territory of north-east karst. It consists of these sections: Holstejn valley, Lipovecky hollow, Sosuvska plateau, karst hook with little valley V Syckach and fraction of Planivska plateau. Exploratory works hang together with wider surroundings: Ostrovska plateau, Bukovinky, Hradsky hollow and Ostrovsky hollow. The largest amount of cave´s entry is in Holstejn valley, Hradsky hollow and Lipovecky hollow. Northern part of Moravian karst belongs to the soft warm area according with climatic classification of Czech republic. Average yearly rain-fall is approximately 710 mm and yearly exhalation is about 440mm in river-basin Punkva. Karst landscape displays also considerably growing ekological crises. Economic activities have a big influence on countryside´s balance even after partial decrease of agricultural covering. Also travell industry displays more negative effects in present time. For example there is an aspiration to build a new road into Holstejn village through the karst area, even thought there're other solutions with less negative effects. Serious problem is contamination of water. It´s solution is complicated by low degree of filtration of water and existence of unknown subterranean channels. Cleanness of water is mostly threatened by garbage from communities.

The Holstejn semi-blind valley is located on the northern rim of the Moravian Karst. The valley is filled with up to 60 m thick fluvial deposits. The shape of the filled depression was investigated by geophysical measurements (gravimetry, vertical electrical sounding). In the western part of the Holstejn valley, a relic of a deep narrow canyon is preserved, which originated at the end of lower Miocene/Pliocene period and continued mainly during the Pliocene. The youngest narrow part of Holstejn valley has developed in the Middle Pleistocene. The Holstejn depression has been filled with sediments of Pliocene to Upper Pleistocene age. Their deposition was controlled by the development of the valley and by the drainage of the surface stream through surrounding cave system.


Passed mediaeval complex of Holstejn castle with its contemporary functional rear and village appertain to nonesuch corroboration of attachment of ancient settlement in background of Moravian Karst. The castle was found shortly before 1268 by lords of Ceblovice during the strong colonization activity in 13th century as a new administrative and authority center of Drahanska vrchovina. The agricultural rear and village were associated to the castle with circumferential estate and with big,in castle´s operation linked cave. Development of this complex continued in 14th century under possession of another prominent family. Wars at the end of the 14th century and during 15th century brought acute reversal in the development, when villages in castle dominion became bleak under influence of fights and additional economic factors. Castle lost its residential use in the course of quick changing of owners at 2nd half of 15th century and after these changes of ownership inferior aristocracy fell from maintanance in 1st half of 16th century. As well the village became bleak without its castle´s rear, Holstejn valley has been settled again in the beginning of 18th century. Passed mediaeval castle and village represent ideal object for study of development of mediaeval settlement forms in Drahanska vrchovina.

 

Our group took part in series excursions and expeditions in karst areas in our republic and another countries. The most important are: international speleological camps in Harz (Germany), karst areas in Romania, Poland and Slovakia, and unique international expedition in Mongolia.

Our group has started a building of a new base in our ground at Holstejn village in 1996. We have lost our original base after recession of former chairman and this problem had to be solved immediately. Respective building was unfortunately complicated by administration process developed by former charmain.

We obtain the neccessary funds for our speleological activities from contracts concluded with another commercial companies. For example: purification of castle wells, mapping of historical underground, purification of roofs and constructions by means of speleoalpinistical techniques, working in caves on behalf of Moravian Karst company etc.

Comments and questions send to nejedly@icp-brno.cz or write directly to

ZO ČSS 6-15 Holštejnská

Ondráčkova 229

CZ-628 00 Brno

Czech Republic

 

This page was created by Radek Paruch, 1997