Trace element geochemistry of basaltic rocks recovered at Site 516, Rio Grande Rise, Deep Sea Drilling Project Leg 72

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doi: 10.2973/dsdp.proc.72.114.1983
Author(s): Weaver, B. L.; Marsh, N. G.; Tarney, J.
Author Affiliation(s): Primary:
Univ. Leicester, Dep. Geol., Leicester, United Kingdom
Other:
Woods Hole Oceanogr. Inst., United States
Tex. A&M Univ., Dep. Geophys., United States
Bundesanst. Geowiss. Rohst., Federal Republic of Germany
Scripps Inst. Oceanogr., Deep Sea Drill. Proj., United States
Lamont-Doherty Geol. Obs., United States
Petrobras, Brazil
Univ. Bordeaux, Dep. Geol. Oceanogr., France
USSR Acad. Sci., Inst. Oceanol., USSR
Cities Serv. Oil Co., Explor. Prod. Res. Lab., United States
Charles T. Main Co., United States
Univ. Southampton, United Kingdom
Volume Title: Initial reports of the Deep Sea Drilling Project covering Leg 72 of the cruises of the drilling vessel Glomar Challenger, Santos, Brazil to Santos, Brazil, February-April, 1980
Volume Author(s): Barker, Peter F.; Johnson, David A.; Carlson, Richard L.; Čepek, Pavel; Coulbourn, William T.; Gamboa, Luiz A.; Hamilton, Norman; de Melo, Ubirajara; Pujol, Claude; Shor, Alexander N.; Suzyumov, Alexey E.; Tjalsma, Leonard R. C.; Walton, William H.; Whalen, Elizabeth
Source: Initial reports of the Deep Sea Drilling Project covering Leg 72 of the cruises of the drilling vessel Glomar Challenger, Santos, Brazil to Santos, Brazil, February-April, 1980, Peter F. Barker, David A. Johnson, Richard L. Carlson, Pavel Čepek, William T. Coulbourn, Luiz A. Gamboa, Norman Hamilton, Ubirajara de Melo, Claude Pujol, Alexander N. Shor, Alexey E. Suzyumov, Leonard R. C. Tjalsma, William H. Walton and Elizabeth Whalen. Initial Reports of the Deep Sea Drilling Project, Vol.72, p.451-456. Publisher: Texas A & M University, Ocean Drilling Program, College Station, TX, United States. ISSN: 0080-8334 CODEN: IDSDA6
Note: In English. 9 refs.; illus. incl. 1 table, chart
Summary: The recovered basalts are plagioclase-phyric, pervasively altered and chemically uniform. Four distinct geochemical units of trace elements can be recognized, two of which are controlled by alteration. Fractional crystallization does not explain the other two geochemical units. The trace-element chemistry is typical of T-type MORB. The REE (Ce/Y) are mildly fractionated. A number of incompatible element ratios are close to chondritic.
Year of Publication: 1983
Research Program: DSDP Deep Sea Drilling Project
IPOD International Phase of Ocean Drilling
Key Words: 02 Geochemistry; 07 Marine Geology and Oceanography; Atlantic Ocean; Basaltic composition; Basalts; Basement; Brazil Basin; Crust; DSDP Site 516; Deep Sea Drilling Project; Geochemistry; IPOD; Igneous rocks; Leg 72; Oceanic crust; Rio Grande Rise; South American Atlantic; South Atlantic; Southwestern Atlantic; Trace elements; Volcanic rocks
Coordinates: S301620 S301620 W0351706 W0351706
Record ID: 1984034739
Copyright Information: GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom