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Gurenko, Andrey A; Schmincke, Hans-Ulrich (1998): Petrology and geochemistry of sideromelane glass shards from Pleistocene as layers north and south of Gran Canaria [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.666969, Supplement to: Gurenko, AA; Schmincke, H-U (1998): Petrology, geochemistry, S, Cl and F abundances, and S oxidation state of sideromelane glass shards from Pleistocene ash layers north and south of Gran Canaria (ODP Leg 157). Contributions to Mineralogy and Petrology, 131(1), 95-110, https://doi.org/10.1007/s004100050381

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Published: 1998 (exact date unknown) • DOI registered: 2007-11-19

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Abstract:
Major elements, S, F, Cl concentrations and relative proportions of S6+ to total S were analyzed with electron microprobe in sideromelane glass shards from Pleistocene volcaniclastic sediments drilled during ODP Leg 157. Glasses are moderately to strongly evolved and represent a spectrum from alkali basalt, basanite and nephelinite through hawaiite, mugearite and tephrite to phonolitic tephrite. Measured S6+/SumS (0.03±0.98) and calculated Fe2+/Fe3+ (2.5±5.8) ratios in the melt yield preeruptive redox conditions ranging from NNO-1.4 to NNO+2.1. The morphology of the glass shards, variations of S and Cl concentrations (0.010±0.127 wt% S, 0.018±0.129 wt% Cl), calculated preeruptive temperatures (1030±1200 °C) and oxygen fugacities suggest that glasses deposited even within the same ash layers have diverse origin and may have resulted from both submarine and subaerial eruptions. Most vesicle-free glasses are characterized by high concentrations of S and represent undegassed or slightly degassed submarine lavas, whereas vesiculated glasses with low concentrations of S and Cl are strongly degassed and can be ascribed to the eruptions in shallow water or on land. Sideromelane glass shards at Sites 953 are thought to have resulted from submarine eruptions northeast of Gran Canaria, glasses at Site 954 represent mostly volcaniclastic material of shallow water submarine and subaerial eruptions on Gran Canaria and Tenerife, and glasses deposited at Site 956 resulted from submarine or explosive eruptions on Tenerife.
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Median Latitude: 28.152744 * Median Longitude: -15.712983 * South-bound Latitude: 27.615100 * West-bound Longitude: -16.163300 * North-bound Latitude: 28.650300 * East-bound Longitude: -15.144600
Date/Time Start: 1994-08-22T10:53:00 * Date/Time End: 1994-09-15T23:10:00
Event(s):
157-953A * Latitude: 28.650300 * Longitude: -15.144600 * Date/Time Start: 1994-08-22T10:53:00 * Date/Time End: 1994-08-23T00:00:00 * Elevation: -3589.0 m * Penetration: 192.6 m * Recovery: 197.69 m * Location: Canarias Sea * Campaign: Leg157 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 21 core; 192.6 m cored; 0 m drilled; 102.6 % recovery
157-954A * Latitude: 28.436600 * Longitude: -15.532100 * Date/Time Start: 1994-09-04T13:41:00 * Date/Time End: 1994-09-05T20:13:00 * Elevation: -3497.0 m * Penetration: 83.8 m * Recovery: 80.4 m * Location: Canarias Sea * Campaign: Leg157 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 12 cores; 83.8 m cored; 0 m drilled; 95.9 % recovery
157-956A * Latitude: 27.615100 * Longitude: -16.163300 * Date/Time Start: 1994-09-14T13:34:00 * Date/Time End: 1994-09-15T23:10:00 * Elevation: -3453.0 m * Penetration: 161.6 m * Recovery: 160.48 m * Location: Canarias Sea * Campaign: Leg157 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 18 cores; 161.6 m cored; 0 m drilled; 99.3 % recovery
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
18 datasets

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Datasets listed in this publication series

  1. Gurenko, AA; Schmincke, H-U (1998): (Table 1) Classification and ages of Pleistocene ash layers from ODP Hole 157-953A north of Gran Canaria. https://doi.org/10.1594/PANGAEA.666918
  2. Gurenko, AA; Schmincke, H-U (1998): (Table 3) Composition of Pleistocene sideromelane glass shards from ODP Hole 157-953A north of Gran Canaria. https://doi.org/10.1594/PANGAEA.666963
  3. Gurenko, AA; Schmincke, H-U (1998): (Table 4) Sulphur chemistry of Pleistocene sideromelane glass shards from ODP Hole 157-953A north of Gran Canaria. https://doi.org/10.1594/PANGAEA.666966
  4. Gurenko, AA; Schmincke, H-U (1998): (Table 2) Chemistry of Amphibole from Pleistocene ash layers from ODP Hole 157-954A north of Gran Canaria. https://doi.org/10.1594/PANGAEA.666930
  5. Gurenko, AA; Schmincke, H-U (1998): (Table 1) Classification and ages of Pleistocene ash layers from ODP Hole 157-954A north of Gran Canaria. https://doi.org/10.1594/PANGAEA.666917
  6. Gurenko, AA; Schmincke, H-U (1998): (Table 2) Chemistry of Clinopyroxene from Pleistocene ash layers from ODP Hole 157-954A north of Gran Canaria. https://doi.org/10.1594/PANGAEA.666928
  7. Gurenko, AA; Schmincke, H-U (1998): (Table 2) Chemistry of Fe-Ti-oxides from Pleistocene ash layers from ODP Hole 157-954A north of Gran Canaria. https://doi.org/10.1594/PANGAEA.666931
  8. Gurenko, AA; Schmincke, H-U (1998): (Table 2) Chemistry of Olivine from Pleistocene ash layers from ODP Hole 157-954A north of Gran Canaria. https://doi.org/10.1594/PANGAEA.666920
  9. Gurenko, AA; Schmincke, H-U (1998): (Table 2) Chemistry of Plagioclase from Pleistocene ash layers from ODP Hole 157-954A north of Gran Canaria. https://doi.org/10.1594/PANGAEA.666926
  10. Gurenko, AA; Schmincke, H-U (1998): (Table 3) Composition of Pleistocene sideromelane glass shards from ODP Hole 157-954A north of Gran Canaria. https://doi.org/10.1594/PANGAEA.666964
  11. Gurenko, AA; Schmincke, H-U (1998): (Table 4) Sulphur chemistry of Pleistocene sideromelane glass shards from ODP Hole 157-954A north of Gran Canaria. https://doi.org/10.1594/PANGAEA.666967
  12. Gurenko, AA; Schmincke, H-U (1998): (Table 1) Classification and ages of Pleistocene ash layers from ODP Hole 157-956A south of Gran Canaria. https://doi.org/10.1594/PANGAEA.666919
  13. Gurenko, AA; Schmincke, H-U (1998): (Table 2) Chemistry of Clinopyroxene from Pleistocene ash layers from ODP Hole 157-956A south of Gran Canaria. https://doi.org/10.1594/PANGAEA.666929
  14. Gurenko, AA; Schmincke, H-U (1998): (Table 2) Chemistry of Fe-Ti-oxides from Pleistocene ash layers from ODP Hole 157-956A south of Gran Canaria. https://doi.org/10.1594/PANGAEA.666932
  15. Gurenko, AA; Schmincke, H-U (1998): (Table 2) Chemistry of Olivine from Pleistocene ash layers from ODP Hole 157-956A south of Gran Canaria. https://doi.org/10.1594/PANGAEA.666921
  16. Gurenko, AA; Schmincke, H-U (1998): (Table 2) Chemistry of Plagioclase from Pleistocene ash layers from ODP Hole 157-956A south of Gran Canaria. https://doi.org/10.1594/PANGAEA.666927
  17. Gurenko, AA; Schmincke, H-U (1998): (Table 3) Composition of Pleistocene sideromelane glass shards from ODP Hole 157-956A south of Gran Canaria. https://doi.org/10.1594/PANGAEA.666965
  18. Gurenko, AA; Schmincke, H-U (1998): (Table 4) Sulphur chemistry of Pleistocene sideromelane glass shards from ODP Hole 157-956A south of Gran Canaria. https://doi.org/10.1594/PANGAEA.666968