Upper Cretaceous agglutinated foraminifers from the western Pacific Ocean
Fuente:
PANGAEA
Salvato in:
| Autori principali: | , |
|---|---|
| Natura: | Dataset Open Access |
| Lingua: | en |
| Pubblicazione: |
PANGAEA
1992
|
| Soggetti: | |
| Accesso online: | |
| Tags: |
Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
|
| _version_ | 1867169504406011904 |
|---|---|
| author | Wightman, Winton G Kuhnt, Wolfgang |
| author_facet | Wightman, Winton G Kuhnt, Wolfgang |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Abyssal agglutinated foraminifers allow biostratigraphic correlation of Upper Cretaceous brown zeolitic claystones in Deep Sea Drilling Project Holes 196A and 198A and Ocean Drilling Program Holes 800A and 801 A. Three agglutinated foraminiferal zones subdivide the strata overlying the Campanian to Cenomanian cherts. The lower zone is characterized by Hormosina gigantea, which is a Campanian zonal marker in the North Atlantic Ocean and western Tethys. A major correlation level, which was observed in all holes studied, is based on the acme of evolute Haplophragmoides spp. This acme zone was observed in Sample 129-801A-6R-CC, about 9 m above the first occurrence of H. gigantea in Sample 129-801A-7R-1, 62-67 cm (approximately middle Campanian). The uppermost zone is characterized by dominant Paratrochamminoides spp. and in some instances common Bolivinopsis parvissimus (late Campanian to Maestrichtian). The available biostratigraphic data for the Upper Cretaceous of Sites 196, 198, 800, and 801 are correlated with the biochronologic framework of the North Atlantic, western Mediterranean, and Carpathians. Additionally, we use quantitative estimates of the diversity and abundance of agglutinated foraminiferal species to monitor general faunal trends with time in the western Pacific. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_771383 |
| institution | PANGAEA |
| language | en |
| publishDate | 1992 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Upper Cretaceous agglutinated foraminifers from the western Pacific Ocean Wightman, Winton G Kuhnt, Wolfgang 129-800A; 129-801A; 20-196; 20-198A; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Joides Resolution; Leg129; Leg20; North Pacific/ABYSSAL FLOOR; North Pacific/BASIN; North Pacific Ocean; Ocean Drilling Program; ODP Abyssal agglutinated foraminifers allow biostratigraphic correlation of Upper Cretaceous brown zeolitic claystones in Deep Sea Drilling Project Holes 196A and 198A and Ocean Drilling Program Holes 800A and 801 A. Three agglutinated foraminiferal zones subdivide the strata overlying the Campanian to Cenomanian cherts. The lower zone is characterized by Hormosina gigantea, which is a Campanian zonal marker in the North Atlantic Ocean and western Tethys. A major correlation level, which was observed in all holes studied, is based on the acme of evolute Haplophragmoides spp. This acme zone was observed in Sample 129-801A-6R-CC, about 9 m above the first occurrence of H. gigantea in Sample 129-801A-7R-1, 62-67 cm (approximately middle Campanian). The uppermost zone is characterized by dominant Paratrochamminoides spp. and in some instances common Bolivinopsis parvissimus (late Campanian to Maestrichtian). The available biostratigraphic data for the Upper Cretaceous of Sites 196, 198, 800, and 801 are correlated with the biochronologic framework of the North Atlantic, western Mediterranean, and Carpathians. Additionally, we use quantitative estimates of the diversity and abundance of agglutinated foraminiferal species to monitor general faunal trends with time in the western Pacific. |
| title | Upper Cretaceous agglutinated foraminifers from the western Pacific Ocean |
| topic | 129-800A; 129-801A; 20-196; 20-198A; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Joides Resolution; Leg129; Leg20; North Pacific/ABYSSAL FLOOR; North Pacific/BASIN; North Pacific Ocean; Ocean Drilling Program; ODP |
| url | https://doi.org/10.1594/PANGAEA.771383 |