| タイトル | Structure of the midcontinent basement. Topography, gravity, seismic, and remote sensing |
| 本文（外部サイト） | http://hdl.handle.net/2060/19820017795 |
| 著者（英） | Strebeck, J. W.; Arvidson, R. E.; Davies, G. F.; Scholz, K.; Guinness, E. A. |
| 著者所属（英） | Washington Univ. |
| 発行日 | 1981-11-01 |
| 言語 | eng |
| 内容記述 | Some 600,000 discrete Bouguer gravity estimates of the continental United States were spatially filtered to produce a continuous tone image. The filtered data were also digitally painted in color coded form onto a shaded relief map. The resultant image is a colored shaded relief map where the hue and saturation of a given image element is controlled by the value of the Bouguer anomaly. Major structural features (e.g., midcontinent gravity high) are readily discernible in these data, as are a number of subtle and previously unrecognized features. A linear gravity low that is approximately 120 to 150 km wide extends from southeastern Nebraska, at a break in the midcontinent gravity high, through the Ozark Plateau, and across the Mississippi embayment. The low is also aligned with the Lewis and Clark lineament (Montana to Washington), forming a linear feature of approximately 2800 km in length. In southeastern Missouri the gravity low has an amplitude of 30 milligals, a value that is too high to be explained by simple valley fill by sedimentary rocks. |
| NASA分類 | GEOPHYSICS |
| レポートNO | 82N25671
NAS 1.26:166808
NASA-CR-166808 |
| 権利 | No Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/165704 |
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