Structure of sedimentary cover of Red Sea determined from seismic data

Details Structure of sedimentary cover of Red Sea determined from seismic data Structure of sedimentary cover of Red Sea determined from seismic data

Jan 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986rpesc.......26y&link_type=abstract

In its USSR Report: Earth Sciences (JPRS-UES-86-001) p 26 (SEE N86-20887 11-42) Transl. into ENGLISH from Geotektonika (Moscow,

Mathematics

Logic

Geological Faults, Plates (Tectonics), Profilometers, Red Sea, Sedimentary Rocks, Seismology, Structural Properties (Geology), Earth Planetary Structure, Geophysics, Ocean Bottom, Sediments, Seismic Waves

Scientific paper

The continuous seismic profiling method was used in a region of study of the Red Sea rift and on regional runs along the edges of the Red Sea rift and across it to the south and north of the region. Clearly defined southern and northern parts of the sea were found. The southern part has a well-expressed zonality in structure of the sedimentary cover. Evaporites developed along the edges of the Red Sea depression and are absent in a central zone with a width of about 50 km and an extent not less than 750 km. Only the upper, Pliocene-Quarternary sedimentary stratum with a thickness up to 300 m has developed in this central zone. Within it is a narrower axial rift zone without significant thicknesses of sediments. Three zones in the cross section of the southern part of the Red Sea rift coincide well with tectonic zonality in the rift. The marginal parts, underlain by evaporites correspond to more ancient parts of the rift formed during the first phase of spreading; its central part, without evaporites, corresponds to the younger bed of the rift formed during the second phase of spreading; the narrow axial zone, without sediments, coincides with the zone of the most recent volcanism and most recent dilatation. The difference between the southern and northern parts of the Red Sea is that in the south the thick evaporite layer, was broken, whereas in the north it was not.

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