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| Format: | Dataset Open Access |
| Sprache: | en |
| Veröffentlicht: |
PANGAEA
1983
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| Online-Zugang: | https://doi.org/10.1594/PANGAEA.816466 |
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| _version_ | 1867171366118096896 |
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| author | Andrews, Anthony J Dollase, W A Fleet, M E |
| author_facet | Andrews, Anthony J Dollase, W A Fleet, M E |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Mössbauer analyses were conducted on a sample of saponite selected from DSDP Leg 69 basalt core. The sample was initially placed within a nitrogen-purged container on-board Glomar Challenger approximately three hours after recovery, where it remained until analysis. The Mössbauer data revealed an original, in situ Fe2O3/FeO ratio of 0.46, with both Fe**2+ and Fe**3+ in octahedral coordination. With controlled exposure to air under ambient laboratory storage conditions, the proportion of Fe**3+ increased from an original 30% to 51% over a period of about 11.5 months. The Fe**3+ thus produced remained in octahedral coordination, and no observable changes occurred in the physical appearance of the sample. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_816466 |
| institution | PANGAEA |
| language | en |
| publishDate | 1983 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Sample descriptions, d-spacing and geochemistry at DSDP Holes 68-501 and 69-504B Andrews, Anthony J Dollase, W A Fleet, M E 68-501; 69-504B; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Leg68; Leg69; North Pacific/FLANK Mössbauer analyses were conducted on a sample of saponite selected from DSDP Leg 69 basalt core. The sample was initially placed within a nitrogen-purged container on-board Glomar Challenger approximately three hours after recovery, where it remained until analysis. The Mössbauer data revealed an original, in situ Fe2O3/FeO ratio of 0.46, with both Fe**2+ and Fe**3+ in octahedral coordination. With controlled exposure to air under ambient laboratory storage conditions, the proportion of Fe**3+ increased from an original 30% to 51% over a period of about 11.5 months. The Fe**3+ thus produced remained in octahedral coordination, and no observable changes occurred in the physical appearance of the sample. |
| title | Sample descriptions, d-spacing and geochemistry at DSDP Holes 68-501 and 69-504B |
| topic | 68-501; 69-504B; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Leg68; Leg69; North Pacific/FLANK |
| url | https://doi.org/10.1594/PANGAEA.816466 |