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Application of magsat lithospheric modeling in south america. part 1: processing and interpretation of magnetic and gravity anomaly data
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Braile, L. W. Hinze, W. J. Keller, G. R. Lidiak, E. G. |
| Copyright Year | 1984 |
| Description | Scalar magnetic anomaly data from MAGSAT, reduced to vertical polarization and long wavelength pass filtered free air gravity anomaly data of South America and the Caribbean are compared to major crustal features. The continental shields generally are more magnetic than adjacent basins, oceans and orogenic belts. In contrast, the major aulacogens are characterized by negative anomalies. Spherical earth magnetic modeling of the Amazon River and Takatu aulacogens in northeastern South America indicates a less magnetic crust associated with the aulacogens. Spherical earth modeling of both positive gravity and negative magnetic anomalies observed over the Mississippi Embayment indicate the presence of a nonmagnetic zone of high density material within the lower crust associated with the aulacogen. The MAGSAT scalar magnetic anomaly data and available free air gravity anomalies over Euro-Africa indicate several similar relationships. |
| File Size | 5630153 |
| Page Count | 61 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19840014940 |
| Archival Resource Key | ark:/13960/t83j89j9q |
| Language | English |
| Publisher Date | 1984-01-01 |
| Access Restriction | Open |
| Subject Keyword | Earth Resources And Remote Sensing Amazon Region South America Earth Resources Program Earth Gravitation Plates Tectonics Lithosphere Gravity Anomalies Structural Properties Geology Earth Crust Seismology Continental Drift Environment Models Volcanology South America Magnetic Anomalies Magsat Satellites Caribbean Sea Polarization Charge Separation Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
