Artículo
Abstract:
Radiolarians were studied in 11 box-cores retrieved in the western (160°E), central (135°W) and eastern (90°W) equatorial Pacific. The western and central cores span the last ca. 40 000 yrs, while the eatern core is estimated to reach approx. 12 000-17 000 yrs. Time-average data show very sharp assemblage composition difference between the three locales. Species dominant at the western most sites are indicative of warm, oligotrophic conditions; than atocoenoses from 135°W suggest strong input of California Current radiolarians; while the easternmost core hosts assemblages which point to a significant influence of the Peru Current. In the central and eastern parts of the equatorial Pacific belt, radiolarian distributional patterns in the sediments and their shifts during the last millennia respond chiefly to environmental conditions at depths in excess of 50 m (rather than to sea surface temperature), and to subsurface and deep lateral advection of shells from eastern boundary current areas. -from Author
Registro:
| Documento: | Artículo |
| Título: | Current and productivity patterns in the equatorial Pacific across the last glacial maxium based on radiolarian east-west and downcore faunal gradients |
| Autor: | Boltovskoy, D. |
| Filiación: | Facultad de Ciencias Exactas y Naturales, Univ. de Buenos Aires, 1428 Buenos Aires, Argentina, Argentina |
| Palabras clave: | currents; downcore faunal gradients; faunal gradient; Last Glacial Maximum; palaeoceanography; productivity; productivity pattern; radiolaria; radiolarian; (Equatorial); Pacific; Radiolaria (protozoans) |
| Año: | 1992 |
| Volumen: | 38 |
| Número: | 4 |
| Página de inicio: | 397 |
| Página de fin: | 413 |
| Título revista: | Micropaleontology |
| ISSN: | 00262803 |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00262803_v38_n4_p397_Boltovskoy |
Citas:
---------- APA ----------
(1992) . Current and productivity patterns in the equatorial Pacific across the last glacial maxium based on radiolarian east-west and downcore faunal gradients. Micropaleontology, 38(4), 397-413.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00262803_v38_n4_p397_Boltovskoy [ ]
---------- CHICAGO ----------
Boltovskoy, D. "Current and productivity patterns in the equatorial Pacific across the last glacial maxium based on radiolarian east-west and downcore faunal gradients" . Micropaleontology 38, no. 4 (1992) : 397-413.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00262803_v38_n4_p397_Boltovskoy [ ]
---------- MLA ----------
Boltovskoy, D. "Current and productivity patterns in the equatorial Pacific across the last glacial maxium based on radiolarian east-west and downcore faunal gradients" . Micropaleontology, vol. 38, no. 4, 1992, pp. 397-413.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00262803_v38_n4_p397_Boltovskoy [ ]
---------- VANCOUVER ----------
Boltovskoy, D. Current and productivity patterns in the equatorial Pacific across the last glacial maxium based on radiolarian east-west and downcore faunal gradients. 1992;38(4):397-413.Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00262803_v38_n4_p397_Boltovskoy [ ]
