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Andrews, Anthony J; Dollase, W A; Fleet, M E (1983): Sample descriptions, d-spacing and geochemistry at DSDP Holes 68-501 and 69-504B [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.816466, Supplement to: Andrews, AJ et al. (1983): A Mössbauer study of saponite in layer 2 basalt, Deep Sea Drilling Project Leg 69. In: Cann, JR; Langseth, MG; Honnorez, J; Von Herzen, RP; White, SM; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 69, 585-588, https://doi.org/10.2973/dsdp.proc.69.131.1983

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Abstract:
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.
Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Median Latitude: 1.227200 * Median Longitude: -83.731157 * South-bound Latitude: 1.227200 * West-bound Longitude: -83.734300 * North-bound Latitude: 1.227200 * East-bound Longitude: -83.730200
Date/Time Start: 1979-07-08T00:00:00 * Date/Time End: 1979-10-07T00:00:00
Event(s):
68-501 * Latitude: 1.227200 * Longitude: -83.734300 * Date/Time: 1979-07-08T00:00:00 * Elevation: -3457.0 m * Penetration: 337.1 m * Recovery: 70.5 m * Location: North Pacific/FLANK * Campaign: Leg68 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 19 cores; 137.7 m cored; 0.5 m drilled; 51.2 % recovery
69-504B * Latitude: 1.227200 * Longitude: -83.730200 * Date/Time: 1979-10-07T00:00:00 * Elevation: -3460.0 m * Penetration: 489 m * Recovery: 262 m * Campaign: Leg69 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL)
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
3 datasets

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Datasets listed in this publication series

  1. Andrews, AJ; Dollase, WA; Fleet, ME (1983): (Table 1) Sample descriptions and d-spacing at DSDP Holes 68-501 and 69-504B. https://doi.org/10.1594/PANGAEA.816463
  2. Andrews, AJ; Dollase, WA; Fleet, ME (1983): (Table 4) Cation abundances of saponite at DSDP Sample 69-504B-15-1,79-81. https://doi.org/10.1594/PANGAEA.816465
  3. Andrews, AJ; Dollase, WA; Fleet, ME (1983): (Table 3) Geochemistry of saponite in DSDP Sample 69-504B-15-1,79-81. https://doi.org/10.1594/PANGAEA.816464