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Umino, Susumu (2007): Grain sizes and mineral composition of the basement of ODP Site 206-1256 [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.775711, Supplement to: Umino, S (2007): Data report: Textural variation of Units 1256C-18 and 1256D-1 lava pond, with special reference to recrystallization of the base of Unit 1256C-18. In: Teagle, DAH; Wilson, DS; Acton, GD; Vanko, DA (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 206, 1-32, https://doi.org/10.2973/odp.proc.sr.206.007.2007

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Abstract:
Hole 1256C was cored 88.5 m into basement, and Hole 1256D, the deep reentry hole, was cored 502 m into basement during Ocean Drilling Program Leg 206. Hole 1256D is located ~30 m south of Hole 1256C (Wilson, Teagle, Acton, et al., 2003, doi:10.2973/odp.proc.ir.206.2003). A thick massive flow drilled in both holes, Units 1256C-18 and 1256D-1, consists of a single cooling unit of cryptocrystalline to fine-grained basalt, interpreted as a ponded lava, 32 m and at least 74.2 m thick, respectively. This ponded flow gives us a unique opportunity to examine textural variations from the glassy, folded crust of the lava pond recovered from the top of Unit 1256C-18 through the coarse-grained, thick massive lava body to the unusually recrystallized and deformed base cored in Unit 1256C-18. Some detailed descriptions of the textures and grain size variations through the lava pond (Units 1256C-18 and 1256D-1), with special reference to the recrystallization of the base of Unit 1256C-18, are presented here.
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Median Latitude: 0.736267 * Median Longitude: -91.934317 * South-bound Latitude: 0.736050 * West-bound Longitude: -91.934350 * North-bound Latitude: 0.736310 * East-bound Longitude: -91.934310
Date/Time Start: 2002-11-17T06:30:00 * Date/Time End: 2002-11-23T03:45:00
Event(s):
206-1256C * Latitude: 0.736310 * Longitude: -91.934310 * Date/Time Start: 2002-11-17T06:30:00 * Date/Time End: 2002-11-23T03:45:00 * Elevation: -3634.7 m * Penetration: 340.3 m * Recovery: 61.07 m * Location: North Pacific Ocean * Campaign: Leg206 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 14 cores; 120.2 m cored; 220.1 m drilled; 50.8 % recovery
206-1256D * Latitude: 0.736050 * Longitude: -91.934350 * Date/Time: 2002-11-23T03:45:00 * Elevation: -3634.7 m * Penetration: 752 m * Recovery: 227.3 m * Location: North Pacific Ocean * Campaign: Leg206 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 73 cores; 475.9 m cored; 276.1 m drilled; 47.8 % recovery
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. Umino, S (2007): (Table T1) Average grain sizes of minerals from ODP Holes 206-1256C (Unit 18) and 206-1256D (Unit 1). https://doi.org/10.1594/PANGAEA.775708
  2. Umino, S (2007): (Table T2) Average grain sizes of recrystallized base of ODP Hole 206-1256C (Unit 18). https://doi.org/10.1594/PANGAEA.775709
  3. Umino, S (2007): (Table T3) Mineral composition of the basement of ODP Hole 206-1256C. https://doi.org/10.1594/PANGAEA.775710