Magnetic and gravity constraints on forearc upper crustal structure and composition, offshore northeast Japan
Journal of Geomagnetism & Geoelectricity
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Abstract
Marine magnetic and gravity data from the northeast Japan forearc offer insight to the subsurface structure, density and magnetization from which geologic interpretations and tectonic reconstructions can be made. Positive marine magnetic anomalies, on-land geology, drill hole data, and 2-1/2-dimensional models reveal that Kitakami plutons and possibly their associated volcanic rocks constitute part of the modern forearc basement and lie 100-150 km further east than previously thought. A method to create magnetization and density contrast maps was employed to produce a three-dimensional picture of the forearc basement rock properties averaged over a 14-km thickness. -Author
Suggested Citation
Finn, C.A., 1994, Magnetic and gravity constraints on forearc upper crustal structure and composition, offshore northeast Japan: Journal of Geomagnetism & Geoelectricity, v. 46, no. 6, p. 423-441, https://doi.org/10.5636/jgg.46.423.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Magnetic and gravity constraints on forearc upper crustal structure and composition, offshore northeast Japan |
| Series title | Journal of Geomagnetism & Geoelectricity |
| DOI | 10.5636/jgg.46.423 |
| Volume | 46 |
| Issue | 6 |
| Year Published | 1994 |
| Language | English |
| Publisher | J-STAGE |
| Description | 19 p. |
| First page | 423 |
| Last page | 441 |
| Country | Japan |
| Other Geospatial | Pacific Ocean |