Journal ArticleDOI
The major features of the crustal structure in north-eastern Venezuela from deep wide-angle seismic observations and gravity modelling
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In this paper, the velocity distribution within the Oriental Basin has been analyzed and a gravimetric model has been used to confirm the structures derived from the seismic data, interpreted as the base of the sedimentary basin.About:
This article is published in Tectonophysics.The article was published on 2005-04-27. It has received 26 citations till now. The article focuses on the topics: Sedimentary basin & Plate tectonics.read more
Citations
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Models of crustal thickness for South America from seismic refraction, receiver functions and surface wave tomography
TL;DR: In this paper, a compilation of point crustal thicknesses from seismic refraction experiments, receiver function analyses, and surface-wave dispersion was used to develop crustal models in continental South America.
Models of Crustal Thickness for South America from Seismic Refraction, Receiver Functions and Surface Wave Tomography
TL;DR: In this paper, a compilation of point crustal thicknesses from seismic refraction experiments, receiver function analyses, and surface-wave dispersion was used to develop crustal models in continental South America.
Journal ArticleDOI
Seismic structure of the crust and uppermost mantle of South America and surrounding oceanic basins
TL;DR: A set of contour maps of the seismic structure of South America and the surrounding ocean basins is presented in this article. But the authors do not provide a detailed analysis of these maps.
Journal ArticleDOI
Crustal thickness map of Brazil: Data compilation and main features
Marcelo Assumpção,Marcelo Bianchi,Jordi Julià,Fábio Luis Ferreira Dias,George Sand França,Rosana Maria do Nascimento,Stéphane Drouet,César Garcia Pavão,Diogo Farrapo Albuquerque,Afonso E. V. Lopes +9 more
TL;DR: In this paper, a compilation of data from deep seismic refraction experiments, receiver function analyses, and surface-wave dispersion velocities was used to estimate the crustal thickness of Brazil and adjacent areas.
Journal ArticleDOI
Receiver function study of the crustal structure of the southeastern Caribbean plate boundary and Venezuela
Fenglin Niu,Tammy Bravo,Gary L. Pavlis,Frank L. Vernon,Herbert Rendon,Maximiliano Bezada,Alan Levander +6 more
TL;DR: In this article, the authors used the primary P-to-S conversion and crustal reverberations to estimate crustal thickness and average crustal VP/VS ratio over the southeastern Caribbean plate boundary with the receiver function technique.
References
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Journal ArticleDOI
Free software helps map and display data
Paul Wessel,Walter H. F. Smith +1 more
TL;DR: The Generic Mapping Tools (GMT) is introduced, which is a free, public domain software package that can be used to manipulate columns of tabular data, time series, and gridded data sets and to display these data in a variety of forms ranging from simple x-y plots to maps and color, perspective, and shaded-relief illustrations.
Journal ArticleDOI
Seismic traveltime inversion for 2-D crustal velocity structure
Colin A. Zelt,Robert B. Smith +1 more
TL;DR: In this article, a method of seismic traveltime inversion for simultaneous determination of 2-D velocity and interface structure is presented that is applicable to any type of body-wave seismic data, as opposed to trial-and-error forward modelling, is that it provides estimates of model parameter resolution, uncertainty and non-uniqueness, and an assurance that the data have been fit according to a specified norm.
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CRUST 5.1: A global crustal model at 5° × 5°
TL;DR: In this article, a new global model for the Earth's crust based on seismic refraction data published in the period 1948-1995 and a detailed compilation of ice and sediment thickness is presented.
Journal ArticleDOI
Tectonics of the Caribbean and Middle America Regions from Focal Mechanisms and Seismicity
Peter Molnar,Lynn R. Sykes +1 more
TL;DR: In this article, the authors determined the relative motion of the Cocos plate and the Caribbean plate with respect to the surrounding regions or plates and determined the focal mechanisms of 70 earthquakes in these regions.
Physical properties of marine sediments
John E. Nafe,Charles L. Drake +1 more
TL;DR: In this paper, it was shown that seafloor sediments that blanket the ocean floor are of widely varying thickness but seismic observations indicate that 200 to 400 meters in the Pacific and one kilometer in the Atlantic are fairly typical values for deep water.