Deep structure of northern Mississippi embayment
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Abstract
In September 1980, the U. S. Geological Survey conducted a seismic refraction investigation of the northern Mississippi Embayment. During the investigation, 34 shots from nine shotpoints were recorded along a series of profiles. The profiles were parallel to and across an inferred Precambrian rift zone which is outlined by a series of magnetic anomalies and covers an area at least 200 km (125 mi) long and 70 km (45 mi) wide. The paper presents an interpretation of the survey results. The tectonic model proposed to explain the origin of the embayment velocity structure includes a late Precambrian mantle plume that intruded the lower crust of the northern embayment, causing uplift (and/or crustal stretching) and subsequent rifting of the axial area. This was followed by erosion, subsidence, and subsequent deposition of sediments in the resulting trough.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Deep structure of northern Mississippi embayment |
| Series title | AAPG Bulletin |
| DOI | 10.1306/AD4608BE-16F7-11D7-8645000102C1865D |
| Volume | 67 |
| Issue | 11 |
| Year Published | 1983 |
| Language | English |
| Publisher | AAPG |
| Contributing office(s) | Earthquake Science Center |
| Description | 16 p. |
| First page | 2031 |
| Last page | 2046 |
| Country | United States |
| Other Geospatial | Northern Mississippi embayment |
| Google Analytic Metrics | Metrics page |