Results 221 to 230 of about 3,103 (262)

Gravity-inferred crustal thickness of Greenland

Earth and Planetary Science Letters, 2007
Abstract Greenland's crust contains clues for understanding the dynamics of the Earth's second largest ice-sheet, as well as the Iceland hotspot over the past 100 Ma. However, our knowledge of the sub-ice crust is very limited due to the paucity of outcrops and seismic observations, particularly in central Greenland.
A BRAUN, H KIM, B CSATHO, R VONFRESE
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Oceanic spreading rate and crustal thickness

Marine Geophysical Researches, 1981
Examination of oceanic seismic refraction results indicates a correlation between total crustal thickness and spreading rate, with slower spreading producing thinner crust. The effect is seen at spreading rates less than about 20 mm yr−1. The crustal thickness and its dependence on spreading rate are predicted by theoretical modelling of flow and ...
Reid, Ian Derry, JACKSON, H.R.
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Crustal thickness variation in south-central Alaska

Geology, 2006
Crustal thicknesses have been determined by receiver function analysis of broadband teleseismic waveforms recorded during the Broadband Experiment Across the Alaska Range (BEAAR). Typical crust beneath the northern lowlands is 26 km thick, while beneath the mountains it is 35–45 km thick.
Elizabeth Veenstra, Douglas H. Christensen, Geoffrey A. Abers, Aaron Ferris   +3 more
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A Crustal Thickness Constraint for Central Pennsylvania

Seismological Research Letters, 1981
The timing and amplitude of long-period Ps conversions observed on the radial component of ground motion from a suite of teleseismic events were used to place constraints on crustal structure under the WWSSN station SCP (State College, Pennsylvania). Radial P waveforms from impulsive deep earthquakes were modeled in the time domain after corrections ...
C. A. Langston, C. M. Isaacs
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The crustal thickness of NE Tibet and its implication for crustal shortening

Tectonophysics, 2014
Abstract The crustal deformation model for NE Tibet is key to understanding the outward growth of the plateau, especially along its northern front. This study describes receiver function images of the Moho beneath NE Tibet, as calculated from teleseismic data recorded by regional seismic networks.
Xiaobo Tian, Zhen Liu, Shaokun Si, Zhongjie Zhang   +3 more
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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
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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
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