Holocene seismic and tectonic activity in the Dead Sea area

Z Reches, DF Hoexter - Tectonophysics, 1981 - Elsevier
Z Reches, DF Hoexter
Tectonophysics, 1981Elsevier
Abstract The Dead Sea is a large, active graben within the Dead Sea rift, which is bounded
by two major strike-slip faults, the Jericho and the Arava faults. We investigated the young
tectonic activity along the Jericho fault by excavating trenches, up to 3.5 m deep, across its
trace. The trenches penetrate through Late Pleistocene and Holocene sediments. We found
that a zone, up to 15 m wide, of disturbed sediments exists along the fault. These disturbed
sediments provide evidence for two periods of intensive activity or more likely, for two major …
Abstract
The Dead Sea is a large, active graben within the Dead Sea rift, which is bounded by two major strike-slip faults, the Jericho and the Arava faults. We investigated the young tectonic activity along the Jericho fault by excavating trenches, up to 3.5 m deep, across its trace. The trenches penetrate through Late Pleistocene and Holocene sediments. We found that a zone, up to 15 m wide, of disturbed sediments exists along the fault. These disturbed sediments provide evidence for two periods of intensive activity or more likely, for two major earthquakes, that occurred during the last 2000 years. The earthquakes are evident in small faults, vertical throw of a few layers, cracks, unconformities and wide fissures. We further documented evidence for recent sinistral shear along the Jericho fault in deformed sediments and damage to an 8th Century palace on a subsidiary fault. We suggest that the two earthquakes may be correlated with the 31 B.C. earthquake and the 748 A.D. earthquake, reported by the ancients.
Elsevier
以上显示的是最相近的搜索结果。 查看全部搜索结果