DSDP Hole 504B, the first reference section over 1 km through Layer 2 of the oceanic crust

Author(s): Anderson, R. N.; Honnorez, J.; Becker, Keir; Adamson, A. C.; Alt, J. C.; Emmermann, R.; Kempton, P. D.; Kinoshita, H.; Laverne, C.; Mottl, M. J.; Newmark, R. L.
Author Affiliation(s): Primary:
Lamont-Doherty Geol. Obs., Palisades, NY 10964, United States
Volume Title: Nature (London)
Source: Nature (London), 300(5893), p.589-594. Publisher: Macmillan Journals, London, United Kingdom. ISSN: 0028-0836 CODEN: NATUAS
Note: In English. 36 refs.; illus.
Summary: This hole provides a reference section for correlation of in situ petrological and geophysical studies with regional crustal models based on dredged samples and remote surveys; also, at least for the medium-spreading-rate Costa Rica rift, it confirms that the main features of the upper part of an idealized ophiolite sequence occur in the oceanic crust. Basement geochemistry and alteration are briefly discussed.
Year of Publication: 1982
Research Program: DSDP Deep Sea Drilling Project
IPOD International Phase of Ocean Drilling
ODP Ocean Drilling Program
Key Words: 18 Geophysics, Solid-Earth; Atlantic Ocean; Basalts; Costa Rica Rift; Crust; DSDP Site 504; Deep Sea Drilling Project; Dikes; East Pacific; Gabbros; Galapagos Rift; Halmyrolysis; Hydrothermal alteration; IPOD; Igneous rocks; Intrusions; Lava; Leg 111; Leg 137; Leg 140; Leg 148; Leg 69; Leg 70; Leg 83; Leg 92; Marine sediments; Metasomatism; North American Atlantic; Ocean Drilling Program; Oceanic crust; Ophiolite; Pacific Ocean; Petrology; Pillow lava; Plate tectonics; Plutonic rocks; Sediments; Tectonophysics; Temperature; Ultramafics; Volcanic rocks; Well-logging
Coordinates: N011335 N011338 W0834348 W0834357
N011203 N011400 W0834000 W0834500
N011338 N011338 W0834349 W0834349
N011338 N011338 W0834349 W0834349
N011300 N011340 W0834320 W0834400
N011000 N020000 W0834000 W0835000
N003000 N014000 W0834000 W0863000
N011337 N011338 W0834348 W0834349
S192706 N011400 W0834349 W1294614
Record ID: 1984007509
Copyright Information: GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom, Reference includes data from PASCAL, Institute de l'Information Scientifique et Technique