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An investigation of magsat and complementary data emphasizing precambrian shields and adjacent areas of west africa and south america (Document No: 19830016728)
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Copyright Year | 1983 |
| Description | There is lack of acceptance of quantitative crustal models by specialists on regional geology because of the problem of east-west banding on MAGSAT anomaly maps. The possibility of some of the Earth's magnetic field being created in the mantle below the Curie isotherm is discussed as well as the need to remove spherical harmonics of degrees less than 15 from the anomaly map. Two dimensional models were produced for northern South America that might be considered as working models. These models suggest that the presumed Amazon River depression is better developed near Belem and in the upper Amazon basin than in the central Amazon basin. An attempt is proposed for separating the core field from the crustal field using a flat-Earth model. |
| File Size | 304086 |
| Page Count | 10 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19830016728 |
| Archival Resource Key | ark:/13960/t0sr3q68w |
| Language | English |
| Publisher Date | 1983-03-31 |
| Access Restriction | Open |
| Subject Keyword | Earth Resources And Remote Sensing Amazon Region South America Earth Resources Program Spherical Harmonics Two Dimensional Models Satellite Observation Tectonics Bedrock Data Reduction Wavelengths Earth Crust South America Mathematical Models Magnetic Anomalies Magsat Satellites 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 |
