Siliceous Sponge-Microbe Biotic Associations and Their Recurrence through the Phanerozoic as Reef Mound Constructors
DOI | 10.2307/3515056 |
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Aasta | 1994 |
Kirjastus | Society for Sedimentary Geology |
Ajakiri | Palaios |
Köide | 9 |
Number | 4 |
Leheküljed | 370-387 |
Tüüp | artikkel ajakirjas |
Keel | inglise |
Id | 10450 |
Abstrakt
The association between mound-building, benthic microbial communities and siliceous sponges is characteristic of some reef mounds of Early Cambrian, Early-Middle Ordovician, Late Silurian, Late Devonian, Late Mississippian, Late Permian, Late Triassic and Late Jurassic age. Significant episodes of siliceous sponge-microbe reef mound construction, each lasting 5-15 Ma, generally recurred at intervals of approximately 70-100 Ma. The occurrences of these episodes of reef mound construction near the culminations of substantial marine transgressions indicates that extrinsic controls associated with sea level change, such as their spatial association with stratified basin waters and fluctuating oxygen-minimum zones, may have been important in microbial reef mound establishment.