Clastic dikes are cross-cutting (discordant), tabular bodies that are filled with sediment.
In the Dead Sea basin Early Holocene seismic activity triggered fluidization and clastic-dike emplacement within Late Pleistocene lacustrine Lisan Formation sediments. Hundreds of opening-mode dikes were documented in four distinct sites in relatively small areas (up to 5 sq.km): Bet Ha’Arava, Masada Plain, Nahal Amazyahu, and Ami’az Plain, where a radial system converges at an active salt intrusion (diapir).
Research partners: Amotz Agnon, Rami Weinberger, Tsafrir Levi, Tahar AÏfa, Yehuda Eyal, Yael Jacoby.
Publications related to clastic dikes
- Marco, S., and Agnon, A., 1996, Diapir-related fissures in the Ami'az Plateau: Isr. Geol. Surv. Current Res., v. 10, p. 79-80. pdf
- Marco, S., Weinberger, R., and Agnon, A., 2002, Radial clastic dykes formed by a salt diapir in the Dead Sea Rift, Israel: Terra Nova, v. 14, p. 288-294. pdf.
- Levi, T., Weinberger, R., Aïfa, T., Eyal, Y., and Marco, S., 2006, Earthquake-induced clastic dikes detected by anisotropy of magnetic susceptibility: Geology, v. 34, p. 69-72. pdf
- Levi, T., Weinberger, R., Aïfa, T., Eyal, Y., and Marco, S., 2006, Injection mechanism of clay-rich sediments into dikes during earthquakes: Geochemistry, Geophysics, and Geosystems, v. 7, no. 12, p. Q12009 (doi:12010.11029/12006GC001410). pdf
- Jacoby, Y., Weinberger, R., Levi, T., and Marco, S., 2014, Clastic dikes in the Dead Sea Basin as indicators of local site amplification: Natural Hazards, v. 75:1649–1676. pdf