TY - JOUR
T1 - Gravitational deformations and fillings of aging caves
T2 - The example of Qesem karst system, Israel
AU - Frumkin, Amos
AU - Karkanas, Panagiotis
AU - Bar-Matthews, Miryam
AU - Barkai, Ran
AU - Gopher, Avi
AU - Shahack-Gross, Ruth
AU - Vaks, Anton
PY - 2009/5/1
Y1 - 2009/5/1
N2 - The Qesem karst system may serve as an example for aging chamber caves. It includes two caves which have undergone several stages of natural and human-induced deposition, as well as subsidence and collapse. Natural deposits include calcite speleothems, bedrock collapse debris, and clay fill. Karst dissolution and associated sagging and decomposition have operated since the initial cave formation. Inclined sediments are attributed to several processes, mostly dominated by gravitational sagging into underlying dissolution voids, affecting cave deposits and sometimes the host-rock. U-Th dating shows that speleothem deposition has been common during the mid-late Quaternary, but deposition sites shifted according to local conditions. The aging of caves occurs when they become totally filled by sediments and ultimately consumed by surface denudation, as documented in Qesem Cave.
AB - The Qesem karst system may serve as an example for aging chamber caves. It includes two caves which have undergone several stages of natural and human-induced deposition, as well as subsidence and collapse. Natural deposits include calcite speleothems, bedrock collapse debris, and clay fill. Karst dissolution and associated sagging and decomposition have operated since the initial cave formation. Inclined sediments are attributed to several processes, mostly dominated by gravitational sagging into underlying dissolution voids, affecting cave deposits and sometimes the host-rock. U-Th dating shows that speleothem deposition has been common during the mid-late Quaternary, but deposition sites shifted according to local conditions. The aging of caves occurs when they become totally filled by sediments and ultimately consumed by surface denudation, as documented in Qesem Cave.
KW - Cave archaeology
KW - Cave fill
KW - Chamber cave
KW - Karst subsidence
KW - Speleothem
KW - U-Th dating
UR - http://www.scopus.com/inward/record.url?scp=61849140687&partnerID=8YFLogxK
U2 - 10.1016/j.geomorph.2008.09.018
DO - 10.1016/j.geomorph.2008.09.018
M3 - Article
AN - SCOPUS:61849140687
SN - 0169-555X
VL - 106
SP - 154
EP - 164
JO - Geomorphology
JF - Geomorphology
IS - 1-2
ER -