Major and trace element abundances at DSDP Hole 72-516F
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| Autori principali: | , , , , |
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| Natura: | Dataset Open Access |
| Lingua: | en |
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PANGAEA
1983
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| _version_ | 1867167670146695168 |
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| author | Michel, Helen V Asaro, Frank Alvarez, Walter Alvarez, Luis W Johnson, David A |
| author_facet | Michel, Helen V Asaro, Frank Alvarez, Walter Alvarez, Luis W Johnson, David A |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Anomalously high values of Ir have been detected in association with the Cretaceous/Tertiary boundary in about a dozen marine or continental sections laid down about 65 Ma in many different parts of the world (Alvarez et al., 1981). One possible exception is the Cretaceous/Tertiary boundary region in DSDP Site 356, in the South Atlantic off the coast of South America. In a detailed study of that section, the maximum Ir abundance was about 0.2 ppb, much lower than the 3-90 ppb found in most of the other marine locations (authors' unpublished data on the Cretaceous/Tertiary region of Site 356, 1982). A study of Hole 516F, which is not too far from Site 356, could show whether the very low (or missing) Cretaceous/Tertiary Ir anomaly at Site 356 is characteristic of this region of the South Atlantic. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_812513 |
| institution | PANGAEA |
| language | en |
| publishDate | 1983 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Major and trace element abundances at DSDP Hole 72-516F Michel, Helen V Asaro, Frank Alvarez, Walter Alvarez, Luis W Johnson, David A 72-516F; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Leg72; South Atlantic/CONT RISE Anomalously high values of Ir have been detected in association with the Cretaceous/Tertiary boundary in about a dozen marine or continental sections laid down about 65 Ma in many different parts of the world (Alvarez et al., 1981). One possible exception is the Cretaceous/Tertiary boundary region in DSDP Site 356, in the South Atlantic off the coast of South America. In a detailed study of that section, the maximum Ir abundance was about 0.2 ppb, much lower than the 3-90 ppb found in most of the other marine locations (authors' unpublished data on the Cretaceous/Tertiary region of Site 356, 1982). A study of Hole 516F, which is not too far from Site 356, could show whether the very low (or missing) Cretaceous/Tertiary Ir anomaly at Site 356 is characteristic of this region of the South Atlantic. |
| title | Major and trace element abundances at DSDP Hole 72-516F |
| topic | 72-516F; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Leg72; South Atlantic/CONT RISE |
| url | https://doi.org/10.1594/PANGAEA.812513 |