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Maury, R C; Bellon, Herve; Bougault, Henri; Joron, Jean Louis; Bohn, Marcel; de Graciansky, Pierre C (1985): Geochemistry, trace elements and minerals at DSDP Holes 80-550B and 80-551 [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.807892, Supplement to: Maury, RC et al. (1985): Oceanic tholeiites from Leg 80 Sites (Celtic Sea passive margin, northeastern Atlantic): geochemistry and mineralogy. In: De Graciansky, PC; Poag, CW; et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Gov. Printing Office), 80, 939-946, https://doi.org/10.2973/dsdp.proc.80.142.1985

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Abstract:
The Leg 80 basalts drilled on the Porcupine Abyssal Plain 10 km southwest of Goban Spur (Hole 550B) and on the western edge of Goban Spur (Hole 551), respectively, are typical light-rare-earth-element- (LREE-) depleted oceanic tholeiites. The basalts from the two holes are almost identical; most of their primary geochemical and mineralogical characteristics have been preserved, but they have undergone some low-temperature alteration by seawater, such as enrichment in K, Rb, and Cs and development of secondary potassic minerals of the "brownstone facies." K/Ar dating fail to give realistic emplacement ages; the apparent ages obtained become younger with alteration (causing an increase in K2O). Hole 551 basalts are clearly different from the continental tholeiites emplaced on the margins of oceanizing domains during the prerift and synrift stages.
Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Median Latitude: 48.713350 * Median Longitude: -13.470100 * South-bound Latitude: 48.516000 * West-bound Longitude: -13.501500 * North-bound Latitude: 48.910700 * East-bound Longitude: -13.438700
Date/Time Start: 1981-06-30T00:00:00 * Date/Time End: 1981-07-16T00:00:00
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
6 datasets

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Datasets listed in this publication series

  1. Maury, RC; Bellon, H; Bougault, H et al. (1985): (Table 6) Age dated, K2O and 40Ar at DSDP Holes 80-551 and 80-550B. https://doi.org/10.1594/PANGAEA.807891
  2. Maury, RC; Bellon, H; Bougault, H et al. (1985): (Table 4) Geochemistry of feldspars, glasses, and secondary minerals at DSDP Holes 80-550B and 80-551. https://doi.org/10.1594/PANGAEA.807889
  3. Maury, RC; Bellon, H; Bougault, H et al. (1985): (Table 1) Geochemistry and minerals at DSDP Holes 80-550B and 80-551. https://doi.org/10.1594/PANGAEA.807885
  4. Maury, RC; Bellon, H; Bougault, H et al. (1985): (Table 3) Geochemistry of clinopyroxene at DSDP Holes 80-550B and 80-551. https://doi.org/10.1594/PANGAEA.807888
  5. Maury, RC; Bellon, H; Bougault, H et al. (1985): (Table 2) Geochemistry of spinel at DSDP Holes 80-550B and 80-551. https://doi.org/10.1594/PANGAEA.807887
  6. Maury, RC; Bellon, H; Bougault, H et al. (1985): (Table 5) Trace elements at DSDP Holes 80-550B and 80-551. https://doi.org/10.1594/PANGAEA.807890