Results 11 to 20 of about 985 (137)

Is Airy Isostasy Applicable to Icy Moons?

open access: yesGeophysical Research Letters, 2019
AbstractAiry isostasy is commonly used in planetary science to explain the relationship between crustal thickness variations and topography. Recently, several researchers have questioned the validity of this concept and proposed alternative approaches. Here we examine the accuracy of these approaches by comparing their results with those obtained from ...
O. Čadek, O. Souček, M. Běhounková
openaire   +1 more source

On the pitfalls of Airy isostasy and the isostatic gravity anomaly in general [PDF]

open access: yesGeophysical Journal International, 2018
Isostatic gravity anomalies provide a measure of the Earth's gravity field free from the gravitational attractions of the topography and its isostatic compensation, most commonly represented by a variation in the depth of a compensating density contrast, for example the Moho.
openaire   +2 more sources

Isostasy and its Meaning [PDF]

open access: yes, 1949
The theory of isostasy supposes that, in regions which have not been disturbed recently, each vertical column of the earth's crust with a certain minimum radius and extending to a depth of about 100 km has approximately the same mass.
Gutenberg, B.
core   +1 more source

Optimum choice of parameters and numerical schemes for a regional gravimetric Moho recovery

open access: yesGeodesy and Geodynamics, 2019
Despite practical limitations of isostatic theories to model the Moho geometry are well-known, gravimetric methods are often used in terrestrial studies of crustal structure in regions with a low seismic data coverage.
Samurdhika Rathnayake, Robert Tenzer
doaj   +1 more source

Analysis of satellite gravity and bathymetry data over Ninety-East Ridge: Variation in the compensation mechanism and implication for emplacement process [PDF]

open access: yes, 2003
International audienceWe investigate the mode of compensation, emplacement history and deep density structure of the Ninety-East Ridge (Indian Ocean) using spectral analyses and forward modeling of satellite gravity and bathymetry data.
Andersen   +51 more
core   +3 more sources

Crustal Structure in Alaska From Receiver Function Analysis

open access: yesGeophysical Research Letters, 2019
New maps of crustal thickness and Vp/Vs in Alaska and western Canada were obtained using P receiver functions recorded at 198 stations from the USArray Transportable Array and the Alaska Regional Network.
Ying Zhang, Aibing Li, Hao Hu
doaj   +1 more source

Sedimentation record in the Konkan-Kerala Basin: implications for the evolution of the Western Ghats and the Western Indian passive margin [PDF]

open access: yes, 2007
The Konkan and Kerala Basins constitute a major depocentre for sediment from the onshore hinterland of Western India and as such provide a valuable record of the timing and magnitude of Cenozoic denudation along the continental margin.
Allen P.A.   +43 more
core   +1 more source

Characteristics of isostatic gravity anomaly in Sichuan-Yunnan region, China

open access: yesGeodesy and Geodynamics, 2017
Sichuan-Yunnan region in China, a tectonic transition belt where earthquakes occurred frequently and intensely, has a distinct variation characteristic of gradient zone of Bouguer gravity anomaly (BGA).
Bingcheng Liu   +2 more
doaj   +1 more source

Shape of the northern hemisphere of Mars from the Mars Orbiter Laser Altimeter (MOLA) [PDF]

open access: yes, 1998
Eighteen profiles of ∼N-S-trending topography from the Mars Orbiter Laser Altimeter (MOLA) are used to analyze the shape of Mars' northern hemisphere. MOLA observations show smaller northern hemisphere flattening than previously thought.
Aharonson, Oded   +6 more
core   +1 more source

Sedimentation and subsidence history of the Lomonosov Ridge [PDF]

open access: yes, 2006
During the first scientific ocean drilling expedition to the Arctic Ocean (Arctic Coring Expedition [ACEX]; Integrated Ocean Drilling Program Expedition 302), four sites were drilled and cored atop the central part of the Lomonosov Ridge in the Arctic ...
Backman, J.   +31 more
core   +3 more sources

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