| _version_ | 1867170900043890688 |
|---|---|
| author | Sarti, Massimo Russo, Antonio Bosellini, Francesca R |
| author_facet | Sarti, Massimo Russo, Antonio Bosellini, Francesca R |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Rhaetian fossil reef was penetrated on the Wombat Plateau (northern Exmouth Plateau, northwest Australia). A study of fossil populations and associated sediment types showed a vertical transition from a sponge-dominated to a coral-dominated community, with associated hydrozoans-tabulozoans. The first colonization of the mobile ground was undertaken by sponges, whereas the coral community assemblage constituted the main core of a pinnacle reef complex, dominated by Retiophyllia in the lower part and by Astreomorpha associations upward. This change in fossil communities reflected shallowing of the environment of deposition. The density of frame-building organisms at Site 764, the fossil community organization, and the geometry and spatial arrangement of the organic buildups, as reconstructed by the seismic-reflection profiles, are all instrumental in defining the Rhaetian pinnacle assemblage offshore the Exmouth Plateau as a low-energy, bank-margin 'reef complex'. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_729025 |
| institution | PANGAEA |
| language | en |
| publishDate | 1992 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Vertical distribution of macrofossil taxa in ODP Hole 122-764B Sarti, Massimo Russo, Antonio Bosellini, Francesca R 122-764B; Astreomorpha confusa; Astreomorpha crassisepta; Bryozoa; Calcisponges; Chondrocoenia schafhaeutli; Coral, Thamnasteroid; Corals, other; Disjectopora; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Hydrozoa; Inozoans; Joides Resolution; Leg122; Lithologic unit/sequence; Margarosmilia group charlyana; Molengraaffia; Ocean Drilling Program; ODP; Peronidella; Retiophyllia paraclathrata; Retiophyllia sp.; Salzburgia; Sample code/label; Sestrostomella; South Indian Ridge, South Indian Ocean; Sphinctozoans; Spongiomorpha ramosa; Spongiomorphids; Stromatomorpha rhaetica Rhaetian fossil reef was penetrated on the Wombat Plateau (northern Exmouth Plateau, northwest Australia). A study of fossil populations and associated sediment types showed a vertical transition from a sponge-dominated to a coral-dominated community, with associated hydrozoans-tabulozoans. The first colonization of the mobile ground was undertaken by sponges, whereas the coral community assemblage constituted the main core of a pinnacle reef complex, dominated by Retiophyllia in the lower part and by Astreomorpha associations upward. This change in fossil communities reflected shallowing of the environment of deposition. The density of frame-building organisms at Site 764, the fossil community organization, and the geometry and spatial arrangement of the organic buildups, as reconstructed by the seismic-reflection profiles, are all instrumental in defining the Rhaetian pinnacle assemblage offshore the Exmouth Plateau as a low-energy, bank-margin 'reef complex'. |
| title | Vertical distribution of macrofossil taxa in ODP Hole 122-764B |
| topic | 122-764B; Astreomorpha confusa; Astreomorpha crassisepta; Bryozoa; Calcisponges; Chondrocoenia schafhaeutli; Coral, Thamnasteroid; Corals, other; Disjectopora; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Hydrozoa; Inozoans; Joides Resolution; Leg122; Lithologic unit/sequence; Margarosmilia group charlyana; Molengraaffia; Ocean Drilling Program; ODP; Peronidella; Retiophyllia paraclathrata; Retiophyllia sp.; Salzburgia; Sample code/label; Sestrostomella; South Indian Ridge, South Indian Ocean; Sphinctozoans; Spongiomorpha ramosa; Spongiomorphids; Stromatomorpha rhaetica |
| url | https://doi.org/10.1594/PANGAEA.729025 |