Alternative diagenetic models for cretaceous talus deposits, Deep Sea Drilling Project Site 536, Gulf of Mexico
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Abstract
Talus deposits recovered from Site 536 show evidence of aragonite dissolution, secondary porosity development, and calcite cementation. Although freshwater diagenesis could account for the petrographic features of the altered talus deposits, it does not uniquely account for isotopic or trace-element characteristics. Also, the hydrologic setting required for freshwater alteration is not easily demonstrated for the Campeche Bank. A mixing-zone model does not account for the available trace-element data, but does require somewhat less drastic assumptions about the size of the freshwater lens. Although a seawater (bottom-water) alteration model requires no hydrologic difficulties, unusual circumstances are required to account for the geochemical characteristics of the talus deposits using this model.
Study Area
| Publication type | Book chapter |
|---|---|
| Publication Subtype | Book Chapter |
| Title | Alternative diagenetic models for cretaceous talus deposits, Deep Sea Drilling Project Site 536, Gulf of Mexico |
| Chapter | 8 |
| DOI | 10.2973/dsdp.proc.77.108.1984 |
| Volume | 77 |
| Year Published | 1984 |
| Language | English |
| Publisher | Ocean Drilling Program |
| Contributing office(s) | Coastal and Marine Geology Program |
| Description | 12 p. |
| Larger Work Type | Book |
| Larger Work Subtype | Monograph |
| Larger Work Title | Initial reports of the Deep Sea Drilling Project |
| First page | 397 |
| Last page | 408 |
| Country | United States |
| Other Geospatial | Gulf of Mexico |
| Online Only (Y/N) | N |
| Additional Online Files (Y/N) | N |
| Google Analytic Metrics | Metrics page |