Lithosphere-Scale Seismic Image of the Southern Urals from Explosion-Source Reflection Profiling

Explosive-source deep seismic reflection data from the southern Ural Mountains of central Russia provided a lithosphere-scale image of the central Eurasian plate that reveals deep reflections (35 to 45 seconds in travel time; ∼130 to 170 kilometers deep) from the mantle. The data display laterally v...

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Bibliographic Details
Published in:Science (American Association for the Advancement of Science) 1996-10, Vol.274 (5285), p.226-228
Main Authors: Knapp, J. H., Steer, D. N., Brown, L. D., Berzin, R., Suleimanov, A., Stiller, M., Lüschen, E., Brown, D. L., Bulgakov, R., Kashubin, S. N., Rybalka, A. V.
Format: Article
Language:English
Subjects:
Acoustic data
Conceptual Tempo
Individualized Instruction
Lithospheres
Mantle
Mohorovicic discontinuity
Mountains
Origin
Orogens
Plate tectonics
Profiles
Reflectance
Research Design
Seismic reflection method
Seismic reflection surveying
Seismology
Shear zones
Signal reflection
Travel time
Upper mantle
URSEIS '95
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Summary:Explosive-source deep seismic reflection data from the southern Ural Mountains of central Russia provided a lithosphere-scale image of the central Eurasian plate that reveals deep reflections (35 to 45 seconds in travel time; ∼130 to 170 kilometers deep) from the mantle. The data display laterally variable reflectivity at the base of the crust that deepens beneath the central part of the profile, documenting a crustal thickness of ∼55 to 60 kilometers beneath the axis of the orogen. These data provide an image of the structure of the crust and underlying mantle lithosphere in a preserved collisional orogen, perhaps to the base of the lithosphere.
ISSN:0036-8075
1095-9203
DOI:10.1126/science.274.5285.226