Not logged in
PANGAEA.
Data Publisher for Earth & Environmental Science

Perfit, Michael R; Saunders, Andrew D; Fornari, Daniel J (1982): Geochemistry, petrography and least-squares fractionation at DSDP Leg 64 Holes [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.818461, Supplement to: Perfit, MR et al. (1982): Phase chemistry, fractional crystallization, and magma mixing in basalts from the Gulf of California, Deep Sea Drilling Project Leg 64. In: Curray, JR; Moore, DG; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 64, 649-666, https://doi.org/10.2973/dsdp.proc.64.114.1982

Always quote citation above when using data! You can download the citation in several formats below.

RIS CitationBibTeX CitationShow MapGoogle Earth

Abstract:
Major-element, trace-element, and mineralogic data from basalts drilled during Leg 64 indicate that a wide spectrum of N-type MORB have been erupted in the Gulf of California. Leg 64 basalts have chemical and mineralogical characteristics broadly similar to those from the East Pacific Rise and Nazca Plate. They are not nearly so evolved as basaltic lavas recovered from the Galapagos Spreading Center. Trace-element data suggest that several N-type mantle sources or a spatially heterogeneous mantle were partially melted to generate the spectrum of basalts recovered during Leg 64. However, simple, closed-system crystal fractionation does not adequately explain all of the observed chemical and mineralogical features. Mixing of primitive magmas, with observed An-rich Plagioclase xenocrysts and fractionating magmatic liquids, is a plausible mechanism which can help to explain the evolution of basaltic magmas in the Gulf of California.
Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Median Latitude: 24.842760 * Median Longitude: -110.112765 * South-bound Latitude: 22.959300 * West-bound Longitude: -111.507700 * North-bound Latitude: 27.253000 * East-bound Longitude: -108.978000
Date/Time Start: 1978-12-02T00:00:00 * Date/Time End: 1979-01-03T00:00:00
Event(s):
64-474A * Latitude: 22.959300 * Longitude: -108.978000 * Date/Time: 1978-12-02T00:00:00 * Elevation: -3022.0 m * Penetration: 626 m * Recovery: 290.1 m * Location: North Pacific/Gulf of California/BASIN * Campaign: Leg64 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 49 cores; 453 m cored; 9.5 m drilled; 64 % recovery
64-475B * Latitude: 23.056000 * Longitude: -109.059500 * Date/Time: 1978-12-10T00:00:00 * Elevation: -2593.0 m * Penetration: 96 m * Recovery: 10.4 m * Location: North Pacific/Gulf of California/SLOPE * Campaign: Leg64 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 4 cores; 29.5 m cored; 0 m drilled; 35.2 % recovery
64-477 * Latitude: 27.030800 * Longitude: -111.400300 * Date/Time: 1978-12-18T00:00:00 * Elevation: -2003.0 m * Penetration: 191 m * Recovery: 50.6 m * Location: North Pacific/Gulf of California/BASIN * Campaign: Leg64 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 21 cores; 172 m cored; 19 m drilled; 29.4 % recovery
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
9 datasets

Download Data

Download ZIP file containing all datasets as tab-delimited text — use the following character encoding:

Datasets listed in this publication series

  1. Perfit, MR; Saunders, AD; Fornari, DJ (1982): (Table 8) Least-squares fractionation calculations at DSDP Holes 64-474A and 64-475B. https://doi.org/10.1594/PANGAEA.818455
  2. Perfit, MR; Saunders, AD; Fornari, DJ (1982): (Table 6) Geochemistry of iron-titanium oxides at DSDP Holes 64-474A and 64-478. https://doi.org/10.1594/PANGAEA.818453
  3. Perfit, MR; Saunders, AD; Fornari, DJ (1982): (Table 7) Geochemistry of spinel from DSDP Hole 64-474A. https://doi.org/10.1594/PANGAEA.818454
  4. Perfit, MR; Saunders, AD; Fornari, DJ (1982): (Table 2) Selected major-element compositions of basalts used in fractionation calculations at DSDP Holes 64-475B and 64-477. https://doi.org/10.1594/PANGAEA.818449
  5. Perfit, MR; Saunders, AD; Fornari, DJ (1982): (Table 9) Least-squares fractionation calculations at DSDP Leg 64 Holes. https://doi.org/10.1594/PANGAEA.818459
  6. Perfit, MR; Saunders, AD; Fornari, DJ (1982): (Table 4) Geochemistry of clinopyroxene at DSDP Holes 64-474A, 64-477, and 64-478. https://doi.org/10.1594/PANGAEA.818451
  7. Perfit, MR; Saunders, AD; Fornari, DJ (1982): (Table 5) Geochemistry of olivine at DSDP Holes 64-474A, 64-475B, 64-477, and 64-478. https://doi.org/10.1594/PANGAEA.818452
  8. Perfit, MR; Saunders, AD; Fornari, DJ (1982): (Table 3) Geochemistry of plagioclase at DSDP Holes 64-474A, 64-477, and 64-478. https://doi.org/10.1594/PANGAEA.818450
  9. Perfit, MR; Saunders, AD; Fornari, DJ (1982): (Table 1) Brief petrographic descriptions of analyzed samples at DSDP Leg 64 Holes. https://doi.org/10.1594/PANGAEA.818447