Results 111 to 120 of about 15,320 (228)

A global magnetic anomaly map [PDF]

open access: yes
A subset of POGO satellite magnetometer data has been formed that is suitable for analysis of crustal magnetic anomalies. Using a thirteenth order field model, fit to these data, magnetic residuals have been calculated over the world to latitude limits ...
Cain, J. C., Davis, W. M., Regan, R. D.
core   +1 more source

The use of geomagnetic field models in magnetic surveys [PDF]

open access: yes
The importance of global geomagnetic field models for the reduction of magnetic surveys is discussed. It is demonstrated that a numerical model with adequate secular variation correction, provides a suitable representation of the regional field.
Gain, J. C., Regan, R. D.
core   +1 more source

A new method of Curie depth evaluation from magnetic data: Theory [PDF]

open access: yes
An approach to estimating the Curie point isotherm uses the classical Gauss method inverting a system of nonlinear equations. The method, slightly modified by a differential correction technique, directly inverts filtered Magsat data to calculate the ...
Won, I. J.
core   +1 more source

Where's the Beaverhead beef? [PDF]

open access: yes
Only rare quartz grains with single-set planar (1013) deformation features (PDF's) are present in breccia dikes found in association with uniformly oriented shatter cones that occur over an area 8 x 25 km.
Hargraves, R. B.
core   +1 more source

Remanent magnetization and 3-dimensional density model of the Kentucky anomaly region [PDF]

open access: yes
A three-dimensional model of the Kentucky body was developed to fit surface gravity and long wavelength aeromagnetic data. Magnetization and density parameters for the model are much like those of Mayhew et al (1982).
Estes, R. H.   +2 more
core   +1 more source

Modeling the thermal structure and magnetic properties of the crust of active regions with application to the Rio Grande rift [PDF]

open access: yes
Experiments in Curie depth estimation from long wavelength magnetic anomalies are summarized. The heart of the work is equivalent-layer-type magnetization models derived by inversion of high-elevation, long wavelength magnetic anomaly data.

core   +1 more source

Application of HCMM data to regional geologic analysis for mineral and energy resource evaluation [PDF]

open access: yes
Using a thermal-inertia mapping algorithm which provides greater discrimination capability than those in current use, a geologic features was detected in the Cabeza Prieta, Arizona, area.
Miller, S. H., Watson, K.
core   +3 more sources

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