Osmium concentrations and isotope ratios of ODP Site 146-893A
Fuente:
PANGAEA
Salvato in:
| Autori principali: | , |
|---|---|
| Natura: | Dataset Open Access |
| Lingua: | en |
| Pubblicazione: |
PANGAEA
2004
|
| Soggetti: | |
| Accesso online: | |
| Tags: |
Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
|
| _version_ | 1867170889247752192 |
|---|---|
| author | Williams, Gwyneth A Turekian, Karl K |
| author_facet | Williams, Gwyneth A Turekian, Karl K |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | The Pleistocene deposits of Santa Barbara Basin (SBB) show laminations during interglacial periods typical of an anoxic or suboxic depositional environment and more sporadically laminated deposits during glacial times, indicating a more oxic environment of deposition. The 187Os/188Os value of sediment leaches varies as a function of climate, consistent with a more radiogenic Os signal during interglacial times and less radiogenic Os values more typical of glacial times. The signal is confounded by contributions from a high Os detrital component with a variable 187Os/188Os value, but generally agrees with prior result from deposits from other marine environments. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_708132 |
| institution | PANGAEA |
| language | en |
| publishDate | 2004 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Osmium concentrations and isotope ratios of ODP Site 146-893A Williams, Gwyneth A Turekian, Karl K 146-893A; AGE; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Joides Resolution; Leg146; Negative-thermal ionization mass spectrometry (N-TIMS); North Pacific Ocean; Ocean Drilling Program; ODP; Osmium; Osmium-187/Osmium-188 ratio; Osmium-187/Osmium-188 ratio, error; Sample code/label The Pleistocene deposits of Santa Barbara Basin (SBB) show laminations during interglacial periods typical of an anoxic or suboxic depositional environment and more sporadically laminated deposits during glacial times, indicating a more oxic environment of deposition. The 187Os/188Os value of sediment leaches varies as a function of climate, consistent with a more radiogenic Os signal during interglacial times and less radiogenic Os values more typical of glacial times. The signal is confounded by contributions from a high Os detrital component with a variable 187Os/188Os value, but generally agrees with prior result from deposits from other marine environments. |
| title | Osmium concentrations and isotope ratios of ODP Site 146-893A |
| topic | 146-893A; AGE; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Joides Resolution; Leg146; Negative-thermal ionization mass spectrometry (N-TIMS); North Pacific Ocean; Ocean Drilling Program; ODP; Osmium; Osmium-187/Osmium-188 ratio; Osmium-187/Osmium-188 ratio, error; Sample code/label |
| url | https://doi.org/10.1594/PANGAEA.708132 |