Results 61 to 70 of about 1,119 (177)

Plate motions recorded in tectonostratigraphic terranes of the Franciscan Complex and evolution of the Mendocino triple junction, northwestern California [PDF]

open access: yes, 1994
The Mendocino triple junction area of northern California is underlain by the Coastal belt of the Franciscan complex, flanked on the east by the Central and Eastern belts of the Franciscan Complex.
Frederiksen, NO   +4 more
core   +1 more source

Regional mapping of the crustal structure in southern California from receiver functions [PDF]

open access: yes, 2007
Lateral variations of the crustal structure in southern California are determined from receiver function (RF) studies using data from the Southern California Seismic Network broadband stations and Los Angeles Regional Seismic Experiment surveys.
Clayton, R. W., Yan, Z.
core   +1 more source

The Role of Orogenic Collapse on Tectonic Inheritance of Passive Continental Margins

open access: yesTectonics, Volume 44, Issue 1, January 2025.
Abstract The break‐up and drift of continents is governed by the reactivation of structures in the lithosphere that occur in preference to formation of new structures during rifting. Numerical analyses indicate that mantle heterogeneities should be a first‐order control on tectonic inheritance; however, the importance of mantle relative to crustal ...
Jeffrey Pollock
wiley   +1 more source

A Self-Supervised Method of Suppressing Interference Affected by the Varied Ambient Magnetic Field in Magnetic Anomaly Detection

open access: yesRemote Sensing
Airborne magnetic anomaly detection is an important passive remote sensing technique. However, since the magnetic field caused by the aircraft interferes with the detection accuracy, this part of interference should be eliminated by an aeromagnetic ...
Yizhen Wang   +3 more
doaj   +1 more source

Broadband seismic data acquisition and processing of iron oxide deposits in Blötberget, Sweden

open access: yesGeophysical Prospecting, Volume 73, Issue 1, Page 80-95, January 2025.
Abstract In June 2022, an innovative seismic survey was conducted in Blötberget, central Sweden, to evaluate the effectiveness of employing both a broadband seismic source and broadband receivers for mineral exploration in a challenging hardrock setting. The Blötberget mine hosts high‐quality iron oxides, predominantly magnetite and hematite, sometimes
Lea Gyger   +8 more
wiley   +1 more source

Antarctic Glacial and Subglacial Topography [PDF]

open access: yes, 1967
1. The data is collected and generalized according to 48,000km of surface traverses in Antarctica during the last 15 years. An evaluation is made of reliability of material and methods of study of the ice cover thickness, evaluation of precision of ...
A. P. Kapitza
core   +1 more source

Transform fault earthquakes in the North Atlantic: Source mechanisms and depth of faulting [PDF]

open access: yes, 1988
The centroid depths and source mechanisms of 12 large earthquakes on transform faults of the northern Mid-Atlantic Ridge were determined from an inversion of long-period body waveforms.
Bergman, Eric A., Solomon, Sean C.
core   +2 more sources

Ground Magnetic Mapping of Basement Structures of Maar Lake Tizong and Its Surroundings (Mandji/Wakwa, Adamawa, Cameroon)

open access: yesInternational Journal of Geophysics, Volume 2025, Issue 1, 2025.
The Ngaoundéré area, marked by a complex geodynamic context, is characterized by ancient and recent tectonic activities, as well as intraplate volcanism linked to the Cameroon volcanic line (CVL). Ground magnetic mapping is an effective geophysical tool for detecting hidden faults or fractures and magnetic intrusions.
Ostwald Gaétan Eneme Eya’ama   +6 more
wiley   +1 more source

Processing of unmanned underwater vehicle vector magnetometer data

open access: yesGeophysical Prospecting, Volume 72, Issue 8, Page 2902-2918, October 2024.
Abstract Marine magnetometry very close to the targeted sources, even in very deep waters, is today a reality with the advent of autonomous underwater vehicles. We argue that a successful approach is to fully integrate the magnetometer onboard the autonomous underwater vehicle and to deal with its static magnetic noise, that is induced and permanent ...
J.‐F. Oehler   +5 more
wiley   +1 more source

Fractalness of land gravity data and residual isostatic anomalies map of Argentina, Chile and western Uruguay [PDF]

open access: yes, 2015
Gravity anomalies are often strongly influenced by topography, which effect is mitigated through appropriate reductions. Usually, a standard value of 2670 kg/m3 is used for the density of topography in the absence of specific information.
Herrada, Alfredo Héctor   +2 more
core   +2 more sources

Home - About - Disclaimer - Privacy