Impact origin of the Chesapeake Bay structure and the source of the North American tektites
Science
By: C. Koeberl, C. W. Poag, W.U. Reimold, and D. Brandt
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Abstract
Seismic profiles, drill core samples, and gravity data suggest that a complex impact crater ~35.5 million years old and 90 kilometers in diameter is buried beneath the lower Chesapeake Bay. The breccia that fills the structure contains evidence of shock metamorphism, including impact melt breccias and multiple sets of planar deformation features (shock lamellae) in quartz and feldspar. The age of the crater and the composition of some breccia clasts are consistent with the Chesapeake Bay impact structure being the source of the North American tektites.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Impact origin of the Chesapeake Bay structure and the source of the North American tektites |
| Series title | Science |
| DOI | 10.1126/science.271.5253.1263 |
| Volume | 271 |
| Issue | 5253 |
| Year Published | 1996 |
| Language | English |
| Contributing office(s) | Woods Hole Coastal and Marine Science Center |
| Description | 4 p. |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Science |
| First page | 1263 |
| Last page | 1266 |
| Country | United States |
| State | Maryland, Virginia |
| Other Geospatial | Chesapeake Bay |
| Google Analytic Metrics | Metrics page |