Results 271 to 280 of about 52,724 (287)

Crustal-thickness variations in the central Andes

Geology, 1996
We estimated the crustal thickness along an east-west transect across the Andes at lat 20°S and along a north-south transect along the eastern edge of the Altiplano from data recorded on two arrays of portable broadband seismic stations (BANJO and SEDA).
Susan L. Beck, George Zandt, Stephen C. Myers, Terry C. Wallace, Paul G. Silver, Lawrence Drake   +5 more
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Using Crustal Thickness Modeling to study Mars' Crustal and Mantle Structures

2014
Master of ...
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Crustal thickness of Egypt determined by gravity data

Journal of African Earth Sciences, 1997
The observed Bouguer gravity anomalies of Egypt and surrounding areas have been analysed in terms of the gravity field components due to the lower crust-upper mantle interface (Moho). Band-pass filtering of the observed field in the wavelength band 300 < Λ < 700 km has been assumed to be related to the variable crustal thickness of the area.
DORRE A. S, CARRARA E, CELLA, Federico, GRIMALDI M, Y. A. HADY, HASSAN H, RAPOLLA A, ROBERTI N.   +7 more
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Crustal thickness patterns in the Australian continent

2003
The crust-mantle boundary is defined seismologically by the Mohorovicic discontinuity (or Moho), where the velocity of seismic waves increases from typical crustal values to typical mantle values. The depth of the Moho beneath Australia has been mapped using all available seismic data in order to study the crustal thickness patterns and their ...
C. D. N. COLLINS, B. J. DRUMMOND, M. G. NICOLL   +2 more
openaire   +1 more source

Finite element modeling of lower crustal flow: A model for crustal thickness variations

Journal of Geophysical Research: Solid Earth, 1991
Small‐scale convection beneath continental lithosphere is likely to initiate viscous flow in the ductile lower crust. Positive lithospheric bending will develop above upwelling mantle flow leading to a lateral squeezing out of crustal material from elevated areas which results in significant crustal thickness variations in its final stage. This process
openaire   +1 more source

Crustal thickness estimates for the western Himalaya

1989
The main collision between the Indian and Asian lithospheric plates occurred during late Eocene time (40 to 50 m.y. ago). Continued northward migration of the Indian plate since that time at the rate of 5 cm/yr has resulted in approximately 2,000 km of closure between the two plates.
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Crustal thickness and the forms of impact craters

Journal of Geophysical Research, 1971
Most impact craters with flat lavalike floors are attributed to (1) hypervelocity impact piercing a floating crust and admitting liquid magma to the crater floor or (2) impacts that pierce a solid crust with sufficient energy to relieve the load on high-temperature material held in a solid state, so that it melts and partially fills the crater.
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Heat Flow, Crustal Thickness and Recent Vertical Movements

1979
The relationship between heat flow and/or the depth of the Moho discontinuity and recent vertical movements based on repeated leveling is tentatively discussed. Studies were made in central and east European regions with the help of data supplied by the International Center on Recent Crustal Movements.
openaire   +1 more source

Crustal Thicknesses of Fennoscandia

1979
Pirhonen, S., Bungum, H., Husebye, E. S.
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CRUSTAL THICKNESS EVOLUTION OF THE GRENVILLE OROGEN

Geological Society of America Abstracts with Programs, 2020
Adam Brudner, Xu Chu, Ming Tang
openaire   +1 more source