Early diagenetic features of the scleractinians, pleistocene coral reef, Dahab (Sinai, Egypt)
Two kms north-east of Dahab, the northernmost remnant of emerged Pleistocene terraces display well preserved coral-reef and associated peri-reefal facies. The Scleractinian corals within the reef sequence display a series of diagenetic features formed by the alteration of the original micro-structur...
Elmentve itt :
| Szerző: | |
|---|---|
| Dokumentumtípus: | Cikk |
| Megjelent: |
University of Szeged, Department of Mineralogy, Geochemistry and Petrology
Szeged
1999
|
| Sorozat: | Acta mineralogica-petrographica
40 |
| Kulcsszavak: | Kőzettan, Ásványtan, Földtan |
| Tárgyszavak: | |
| Online Access: | http://acta.bibl.u-szeged.hu/24886 |
| Tartalmi kivonat: | Two kms north-east of Dahab, the northernmost remnant of emerged Pleistocene terraces display well preserved coral-reef and associated peri-reefal facies. The Scleractinian corals within the reef sequence display a series of diagenetic features formed by the alteration of the original micro-structures under different diagenetic conditions. Evidence from cement fabrics (aragonite and high-Mg calcite) suggests that the cementation took place exclusively in a phreatic marine environment. Meteoric diagenesis is indicated by traces of minor leaching and sparry calcite cement. Formation of microcrystalline dolomite and halite might take place in a sabkha environment. This suggests under various diagenetic alternation conditions. |
|---|---|
| Terjedelem/Fizikai jellemzők: | 161-174 |
| ISSN: | 0365-8066 |