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Harrison, R K; Merriman, Richard J; Evans, Jane; Hutchison, Dawn; Davis, A E; Holmes, K A; Joseph, Philippe; Judge, V A; Wheatley, C W (1984): Petrology, mineralogy, and chemistry of basaltic rocks at DSDP Leg 81 Holes [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.807031, Supplement to: Harrison, RK et al. (1984): Petrology, mineralogy, and chemistry of basaltic rocks: Leg 81. In: Roberts, DG; Schnittker, D; et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Govt. Printing Office), 81, 743-774, https://doi.org/10.2973/dsdp.proc.81.129.1984

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Abstract:
We detail the petrography and mineralogy of 145 basaltic rocks from the top, middle, and base of flow units identified on shipboard along with associated pyroclastic samples. Our account includes representative electron microprobe analyses of primary and secondary minerals; 28 whole-rock major-oxide analyses; 135 whole-rock analyses each for 21 trace elements; 7 whole-rock rare-earth analyses; and 77 whole-rock X-ray-diffraction analyses.
These data show generally similar petrography, mineralogy, and chemistry for the basalts from all four sites; they are typically subalkaline and consanguineous with limited evolution along the tholeiite trend. Limited fractionation is indicated by immobile trace elements; some xenocrystic incorporation from more basic material also occurred. Secondary alteration products indicate early subaerial weathering followed by prolonged interaction with seawater, most likely below 150°C at Holes 552, 553A, and 554A. At Hole 555, greenschist alteration affected the deepest rocks (olivine-dolerite) penetrated, at 250-300°C.
Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Median Latitude: 56.303076 * Median Longitude: -22.423327 * South-bound Latitude: 56.042700 * West-bound Longitude: -23.528200 * North-bound Latitude: 56.561700 * East-bound Longitude: -20.782200
Date/Time Start: 1981-07-31T00:00:00 * Date/Time End: 1981-08-31T00:00:00
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
21 datasets

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Datasets listed in this publication series

  1. Harrison, RK; Merriman, RJ; Evans, J et al. (1984): (Table 9) Geochemistry of opaque oxides from DSDP Holes 81-552, 81-553A and 81-555. https://doi.org/10.1594/PANGAEA.807017
  2. Harrison, RK; Merriman, RJ; Evans, J et al. (1984): (Table 5) Geochemistry of clinopyroxene from DSDP Holes 81-552, 81-554A and 81-555. https://doi.org/10.1594/PANGAEA.807013
  3. Harrison, RK; Merriman, RJ; Evans, J et al. (2013): (Table 4) Geochemistry of plagioclase from DSDP Holes 81-552, 81-554A and 81-555. https://doi.org/10.1594/PANGAEA.807012
  4. Harrison, RK; Merriman, RJ; Evans, J et al. (1984): (Table 1) Minerals of basalts and associated rocks at DSDP Holes 81-552 and 81-553A. https://doi.org/10.1594/PANGAEA.807007
  5. Harrison, RK; Merriman, RJ; Evans, J et al. (1984): (Table 20) Rare-earth element abundances in selected samples at DSDP Holes 81-553A, 81-554A, and 81-555. https://doi.org/10.1594/PANGAEA.807027
  6. Harrison, RK; Merriman, RJ; Evans, J et al. (1984): (Table 3) Minerals of basalts and dolerites from DSDP Holes 81-553A, 81-554A and 81-555. https://doi.org/10.1594/PANGAEA.807011
  7. Harrison, RK; Merriman, RJ; Evans, J et al. (1984): (Table 21) Initial strontium isotope ratio analyses of basalts from DSDP Holes 81-553A and 81-554A and of dolerite from DSDP Hole 81-555. https://doi.org/10.1594/PANGAEA.807028
  8. Harrison, RK; Merriman, RJ; Evans, J et al. (1984): (Table 22) Geochemistry of saponite at DSDP Holes 81-553A, and 81-55. https://doi.org/10.1594/PANGAEA.807029
  9. Harrison, RK; Merriman, RJ; Evans, J et al. (1984): (Table 23) Geochemistry of celadonite at DSDP Hole 81-533A and chlorite at DSDP Hole 81-555. https://doi.org/10.1594/PANGAEA.807030
  10. Harrison, RK; Merriman, RJ; Evans, J et al. (1984): (Table 14) CIPW norms of basalts at DSDP Hole 81-553A. https://doi.org/10.1594/PANGAEA.807021
  11. Harrison, RK; Merriman, RJ; Evans, J et al. (1984): (Table 7) Geochemistry of clinopyroxene from DSDP Hole 81-553A. https://doi.org/10.1594/PANGAEA.807015
  12. Harrison, RK; Merriman, RJ; Evans, J et al. (1984): (Table 6) Geochemistry of plagiocalse from DSDP Hole 81-553A. https://doi.org/10.1594/PANGAEA.807014
  13. Harrison, RK; Merriman, RJ; Evans, J et al. (1984): (Table 10) Whole-rock geochemistry of basalts and a tuff at DSDP Hole 81-553A. https://doi.org/10.1594/PANGAEA.807018
  14. Harrison, RK; Merriman, RJ; Evans, J et al. (1984): (Table 16) Trace elements of basalts and pyroclastic rocks from DSDP Hole 81-553A. https://doi.org/10.1594/PANGAEA.807058
  15. Harrison, RK; Merriman, RJ; Evans, J et al. (1984): (Table 2) Minerals of basalts and associated rocks at DSDP Holes 81-554A and 81-555. https://doi.org/10.1594/PANGAEA.807008
  16. Harrison, RK; Merriman, RJ; Evans, J et al. (1984): (Table 15) CIPW norms of basalts and dolerites from DSDP Holes 81-554A and 81-555A. https://doi.org/10.1594/PANGAEA.807023
  17. Harrison, RK; Merriman, RJ; Evans, J et al. (1984): (Table 12) Whole-rock geochemistry of basalts at DSDP Hole 81-554A. https://doi.org/10.1594/PANGAEA.807019
  18. Harrison, RK; Merriman, RJ; Evans, J et al. (1984): (Table 17) Trace elements of basalts from DSDP Hole 81-554A. https://doi.org/10.1594/PANGAEA.807025
  19. Harrison, RK; Merriman, RJ; Evans, J et al. (1984): (Table 8) Geochemistry of olivine from DSDP Hole 81-555. https://doi.org/10.1594/PANGAEA.807016
  20. Harrison, RK; Merriman, RJ; Evans, J et al. (1984): (Table 18) Trace elements of basalts, pyroclastic rocks, and olivine-dolerites at DSDP Hole 81-555. https://doi.org/10.1594/PANGAEA.807026
  21. Harrison, RK; Merriman, RJ; Evans, J et al. (1984): (Table 13) Geochemistry of basalts, a tuff and olivine-dolerites at DSDP Hole 81-555A. https://doi.org/10.1594/PANGAEA.807020