Now showing items 1-6 of 6
Seismic traveltime inversion of wide-angle data for strongly-varying structure: Central Chilean margin and the subducting Juan Fernandez Ridge
This thesis presents the results of traveltime inversion of seismic wide-angle reflection/refraction data for strongly varying media. The two-dimensional velocity structure along two lines across the central Chilean margin ...
A sequence stratigraphic analysis of the late Jurassic-Turonian in the context of the evolution of the West Siberian basin
During the Triassic, Siberia was a basin approximately 1800 kilometers wide filled by red beds and the widespread Tunguska basalts. Rifting occurred in the northern part of the basin. The western part of the Siberian basin ...
Structural and tectonic interpretation of deep seismic reflection data offshore Spain and Portugal: A tectonic rifting model
A portion of new seismic reflection/refraction data collected over the Iberia margin were processed and interpreted, resulting in the recognition of two previously unknown normal faults in the deep crust. These faults, ...
Thermal evolution of the eastern Serrania del Interior foreland fold and thrust belt, northeastern Venezuela, based on apatite fission track analyses
Apatite fission track data show a gradual decrease in age (∼30 Ma to ∼15 Ma) from north to the south in the eastern SerranIa del Interior, northeastern Venezuela. Based on a previous study, a model for the tectonic ...
Late Quaternary glacial history and ice-sheet behavior of the West Antarctic Ice Sheet in Pine Island Bay, Antarctica
Marine-geological and -geophysical studies were undertaken to determine Late Quaternary glacial history of the West Antarctic Ice Sheet in Pine Island Bay, Antarctica. Analysis of geomorphic features and sediments on the ...
Near-surface seismic imaging at a porphyry copper mine
In June 1996, a 2-D high-resolution seismic survey was conducted at an open pit porphyry copper mine in southwest New Mexico. The local geology consists of a Miocene conglomerate, overlying Precambrian to Eocene basement ...