Bulletin of the Seismological Society of America
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

Bulletin of the Seismological Society of America; June 1996; v. 86; no. 3; p. 857-867
© 1996 Seismological Society of America
This Article
Right arrow Full Text (PDF)
Right arrow References
Right arrow Citation Map
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Ryberg, T.
Right arrow Articles by Solodilov, L.
Right arrow Search for Related Content
GeoRef
Right arrow GeoRef Citation

Two-dimensional velocity structure beneath northern Eurasia derived from the super long-range seismic profile quartz

T. Ryberg, F. Wenzel, J. Mechie, A. Egorkin, K. Fuchs and L. Solodilov

GeoForschungsZentrum Telegrafenberg, Potsdam 14473, Germany
Geophysical Institute University Karlsruhe, Hertzstr. 16, Karlsruhe 76187, Germany
Centre of Regional Geophysical and Geoecological Research (GEON), Chisty Pereulok, Moscow 119034, Russia

Abstract

A two-dimensional velocity structure for the mantle down to a depth of 700 km derived from super long-range nuclear explosion seismic data recorded along the Quartz profile in northern Eurasia is presented. The profile extends from the Russian Platform, across Western Siberia to the Altai mountains. A detailed structural image of the lithosphere and asthenosphere shows strong lateral variations along the profile. The subcrustal lithosphere to a depth of 100 km is characterized by lateral variations of the P-wave velocity between 7.7 and 8.7 km/sec. The seismic data are consistent with the Ural mountains having a crustal root. Another important finding in the data is an additional discontinuity in the mantle transition zone at 530 km. This discontinuity could represent one or more phase transitions known to occur at about this depth. At present, the nuclear-seismic records are believed to represent a key data set to prove the existence of this much debated upper mantle discontinuity.




This article has been cited by other articles:


Home page
 ScienceHome page
B. Romanowicz
The Thickness of Tectonic Plates
Science, April 24, 2009; 324(5926): 474 - 476.
[Abstract] [Full Text] [PDF]

Home page
 Geological Society, London, MemoirsHome page
I. M. Artemieva, H. Thybo, and M. K. Kaban
Deep Europe today: geophysical synthesis of the upper mantle structure and lithospheric processes over 3.5 Ga
Geological Society, London, Memoirs, January 1, 2006; 32(1): 11 - 41.
[Abstract] [PDF]

Home page
 Journal of the Geological SocietyHome page
J. H. Scarrow, J. H. Scarrow, C. Ayala, and G. S. Kimbell
Insights into orogenesis: getting to the root of a continent-ocean-continent collision, Southern Urals, Russia
Journal of the Geological Society, December 1, 2002; 159(6): 659 - 671.
[Abstract] [Full Text] [PDF]

Home page
 Bulletin of the Seismological Society of AmericaHome page
Imaging Crustal Structure along Refraction Profiles Using Multicomponent Recordings of First-Arrival Coda
Bulletin of the Seismological Society of America, December 1, 2002; 92(8): 3080 - 3086.


Home page
 Bulletin of the Seismological Society of AmericaHome page
I. B. Morozov, E. A. Morozova, S. B. Smithson, and L. N. Solodilov
On the nature of the teleseismic Pn phase observed on the ultralong-range profile "Quartz," Russia
Bulletin of the Seismological Society of America, February 1, 1998; 88(1): 62 - 73.
[Abstract] [PDF]

Home page
 Bulletin of the Seismological Society of AmericaHome page
W. Schueller, I. B. Morozov, and S. B. Smithson
Crustal and uppermost mantle velocity structure of northern Eurasia along the profile Quartz
Bulletin of the Seismological Society of America, April 1, 1997; 87(2): 414 - 426.
[Abstract] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 1996 by the Seismological Society of America.