(Table 1) Age determination of ODP Hole 117-723A
Fuente:
PANGAEA
Salvato in:
| Autori principali: | , |
|---|---|
| Natura: | Dataset Open Access |
| Lingua: | en |
| Pubblicazione: |
PANGAEA
1995
|
| Soggetti: | |
| Accesso online: | |
| Tags: |
Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
|
| _version_ | 1867170049212547072 |
|---|---|
| author | Naidu, Pothuri Divakar Malmgren, Bjorn |
| author_facet | Naidu, Pothuri Divakar Malmgren, Bjorn |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | We have carried out a high-resolution study of fluctuations in upwelling intensity along the Oman Margin, western Arabian Sea, through the last 19,130 years based on several marine microfossil indices of upwelling. We document a periodicity of 2,200 years in the upwelling indices, which would be governed by the south-west (SW) monsoon with such a periodicity. Our data further demonstrate greater amplitude in the variability of the SW monsoon during the Holocene than during the last glacial period. Our reported 2,200 years periodicity has two implications (1) oceanic circulation changes partly influence monsoon strength at sub-Milankovitch cycles (2) previously documented 2,300 years periodicity in atmospheric 14C might be induced by oceanic circulation changes. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_837323 |
| institution | PANGAEA |
| language | en |
| publishDate | 1995 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | (Table 1) Age determination of ODP Hole 117-723A Naidu, Pothuri Divakar Malmgren, Bjorn 117-723A; Age, 14C AMS; Age, dated; Age, dated, standard deviation; Arabian Sea; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Joides Resolution; Leg117; Ocean Drilling Program; ODP; Sample code/label We have carried out a high-resolution study of fluctuations in upwelling intensity along the Oman Margin, western Arabian Sea, through the last 19,130 years based on several marine microfossil indices of upwelling. We document a periodicity of 2,200 years in the upwelling indices, which would be governed by the south-west (SW) monsoon with such a periodicity. Our data further demonstrate greater amplitude in the variability of the SW monsoon during the Holocene than during the last glacial period. Our reported 2,200 years periodicity has two implications (1) oceanic circulation changes partly influence monsoon strength at sub-Milankovitch cycles (2) previously documented 2,300 years periodicity in atmospheric 14C might be induced by oceanic circulation changes. |
| title | (Table 1) Age determination of ODP Hole 117-723A |
| topic | 117-723A; Age, 14C AMS; Age, dated; Age, dated, standard deviation; Arabian Sea; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Joides Resolution; Leg117; Ocean Drilling Program; ODP; Sample code/label |
| url | https://doi.org/10.1594/PANGAEA.837323 |