| _version_ | 1867169667681878016 |
|---|---|
| author | Kyte, Frank T |
| author_facet | Kyte, Frank T |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Anomalous concentrations of Ir have been found in upper Eocene sediments from Ocean Drilling Program (ODP) Hole 1090B. Clear and dark-colored spherules that are believed to be microtektites and clinopyroxene-bearing microkrystites, respectively, were found in the samples with highest Ir. The peak Ir concentration in Sample 177-1090B-30X-5,105-106 (954 pg/g) and the net Ir fluence (14 ng/cm**2) at this site are higher than at most other localities except for Caribbean site RC9-58. The Ir anomaly and impact debris are probably correlative with similar deposits found at ODP Site 689 on the Maude Rise and at other localities around the world. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_787341 |
| institution | PANGAEA |
| language | en |
| publishDate | 2001 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | (Table T1) Iridium concentration in ODP Site 177-1090 sediments Kyte, Frank T 177-1090B; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Element analysis, neutron activation (NAA); Iridium; Joides Resolution; Leg177; Ocean Drilling Program; ODP; Sample code/label; South Atlantic Ocean Anomalous concentrations of Ir have been found in upper Eocene sediments from Ocean Drilling Program (ODP) Hole 1090B. Clear and dark-colored spherules that are believed to be microtektites and clinopyroxene-bearing microkrystites, respectively, were found in the samples with highest Ir. The peak Ir concentration in Sample 177-1090B-30X-5,105-106 (954 pg/g) and the net Ir fluence (14 ng/cm**2) at this site are higher than at most other localities except for Caribbean site RC9-58. The Ir anomaly and impact debris are probably correlative with similar deposits found at ODP Site 689 on the Maude Rise and at other localities around the world. |
| title | (Table T1) Iridium concentration in ODP Site 177-1090 sediments |
| topic | 177-1090B; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Element analysis, neutron activation (NAA); Iridium; Joides Resolution; Leg177; Ocean Drilling Program; ODP; Sample code/label; South Atlantic Ocean |
| url | https://doi.org/10.1594/PANGAEA.787341 |