Old and recent processes in a warm and humid desert hypogene cave: ‘A’rak Na‘asane, Israel

Recent environmental processes are studied in ʻA’rak Naʻasane Cave at the northern Judean Desert, Israel. The outer zone of the cave is heavily influenced by the outside environment through a large entrance, facilitating entry of air flow, fauna and humans, with minor cave-forming modifications. Con...

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Main Authors: Amos Frumkin, Shlomi Aharon, Uri Davidovich, Boaz Langford, Yoav Negev, Micka Ullman, Anton Vaks, Shemesh Ya‘aran, Boaz Zissu
Format: Article
Language:English
Published: University of South Florida Libraries 2018-09-01
Series:International Journal of Speleology
Subjects:
Online Access:https://scholarcommons.usf.edu/ijs/vol47/iss3/4/
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author Amos Frumkin
Shlomi Aharon
Uri Davidovich
Boaz Langford
Yoav Negev
Micka Ullman
Anton Vaks
Shemesh Ya‘aran
Boaz Zissu
author_facet Amos Frumkin
Shlomi Aharon
Uri Davidovich
Boaz Langford
Yoav Negev
Micka Ullman
Anton Vaks
Shemesh Ya‘aran
Boaz Zissu
author_sort Amos Frumkin
collection DOAJ
description Recent environmental processes are studied in ʻA’rak Naʻasane Cave at the northern Judean Desert, Israel. The outer zone of the cave is heavily influenced by the outside environment through a large entrance, facilitating entry of air flow, fauna and humans, with minor cave-forming modifications. Conversely, the inner cave sustains humid and warm conditions, favoring modifications by condensation corrosion of convective air flow, associated with deposition of popcorn speleothems at the lower parts of dissolution pockets. The warm humid air of the inner cave may be associated with an underlying thermal water table. Active condensation corrosion is decreasing, possibly because of gradual change in the cave microclimate, associated with falling water table and ventilation. Increasing connection with the surface is indicated by high collapse domes, rare flood invasion, and a large Trident Leaf-nosed bat community which spends the winter within the innermost parts of the cave. Bat guano supports bedrock corrosion and a rich invertebrate fauna, but humans preferred the outer parts of the cave, particularly for refuge during the second Jewish revolt against the Romans. Rare occasions of ancient human entry into the inner cave support this scenario by the small number of artifacts compared with the outer cave. Enigmatic small cairns in the largest inner hall were probably erected during the Intermediate Bronze Age.
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spelling doaj.art-566ed02dbb3f46fdb53c44cd22db51e02022-12-21T19:32:03ZengUniversity of South Florida LibrariesInternational Journal of Speleology0392-66721827-806X2018-09-0147330732110.5038/1827-806X.47.3.2178Old and recent processes in a warm and humid desert hypogene cave: ‘A’rak Na‘asane, IsraelAmos Frumkin0Shlomi Aharon1Uri Davidovich2Boaz Langford3Yoav Negev4Micka Ullman5Anton Vaks6Shemesh Ya‘aran7Boaz Zissu8The Hebrew University of JerusalemThe Hebrew University of JerusalemThe Hebrew University of JerusalemThe Hebrew University of JerusalemThe Hebrew University of JerusalemThe Hebrew University of JerusalemGeological Survey of IsraelThe Hebrew University of JerusalemBar-Ilan UniversityRecent environmental processes are studied in ʻA’rak Naʻasane Cave at the northern Judean Desert, Israel. The outer zone of the cave is heavily influenced by the outside environment through a large entrance, facilitating entry of air flow, fauna and humans, with minor cave-forming modifications. Conversely, the inner cave sustains humid and warm conditions, favoring modifications by condensation corrosion of convective air flow, associated with deposition of popcorn speleothems at the lower parts of dissolution pockets. The warm humid air of the inner cave may be associated with an underlying thermal water table. Active condensation corrosion is decreasing, possibly because of gradual change in the cave microclimate, associated with falling water table and ventilation. Increasing connection with the surface is indicated by high collapse domes, rare flood invasion, and a large Trident Leaf-nosed bat community which spends the winter within the innermost parts of the cave. Bat guano supports bedrock corrosion and a rich invertebrate fauna, but humans preferred the outer parts of the cave, particularly for refuge during the second Jewish revolt against the Romans. Rare occasions of ancient human entry into the inner cave support this scenario by the small number of artifacts compared with the outer cave. Enigmatic small cairns in the largest inner hall were probably erected during the Intermediate Bronze Age.https://scholarcommons.usf.edu/ijs/vol47/iss3/4/confined cavecave microclimatecondensation corrosionbat guanopopcorn speleothem
spellingShingle Amos Frumkin
Shlomi Aharon
Uri Davidovich
Boaz Langford
Yoav Negev
Micka Ullman
Anton Vaks
Shemesh Ya‘aran
Boaz Zissu
Old and recent processes in a warm and humid desert hypogene cave: ‘A’rak Na‘asane, Israel
International Journal of Speleology
confined cave
cave microclimate
condensation corrosion
bat guano
popcorn speleothem
title Old and recent processes in a warm and humid desert hypogene cave: ‘A’rak Na‘asane, Israel
title_full Old and recent processes in a warm and humid desert hypogene cave: ‘A’rak Na‘asane, Israel
title_fullStr Old and recent processes in a warm and humid desert hypogene cave: ‘A’rak Na‘asane, Israel
title_full_unstemmed Old and recent processes in a warm and humid desert hypogene cave: ‘A’rak Na‘asane, Israel
title_short Old and recent processes in a warm and humid desert hypogene cave: ‘A’rak Na‘asane, Israel
title_sort old and recent processes in a warm and humid desert hypogene cave a rak na asane israel
topic confined cave
cave microclimate
condensation corrosion
bat guano
popcorn speleothem
url https://scholarcommons.usf.edu/ijs/vol47/iss3/4/
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