An eolian facies in the Ste. Genevieve Limestone of southern Indiana
Links
- More information: Publisher Index Page
- Download citation as: RIS | Dublin Core
Abstract
Cross-bedded oolitic grainstones in the Ste. Genevieve Limestone (Mississippian) of the Illinois basin have generally been considered to be shallow marine. However, fine- to medium-grained cross-bedded grainstones of mixed clast type in the Ste. Genevieve of Harrison County, southern Indiana, are here interpreted to be of eolian dune origin on the basis of small-scale sedimentary structures, particularly climbing-wind-ripple structures. In addition, subaerial exposure of surfaces at the tops and bases of the eolian units is indicated by pedogenic features such as in-situ breccias and rhizoliths. Associated skeletal and oolitic grainstones of marine origin are distinguished from the eolian grainstones by the presence of pebble-sized fossils. The presence of several interva s of eolian deposits in the Ste. Genevieve is probably a result of eustatic sea level fluctuations.
| Publication type | Book chapter |
|---|---|
| Publication Subtype | Book Chapter |
| Title | An eolian facies in the Ste. Genevieve Limestone of southern Indiana |
| Year Published | 1993 |
| Language | English |
| Publisher | American Association of Petroleum Geologists |
| Description | 18 p. |
| Larger Work Type | Book |
| Larger Work Title | Mississippian oolites and modern analogs |
| First page | 31 |
| Last page | 48 |
| Google Analytic Metrics | Metrics page |