Cherts from the Rio Grande Rise sediments, Deep Sea Drilling Project Leg 72, Hole 516F

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doi: 10.2973/dsdp.proc.72.113.1983
Author(s): Levitan, M. A.; Stizhov, V. P.; Schevtchenko, A. Ya.
Author Affiliation(s): Primary:
USSR Acad. Sci., Inst. Oceanol., Moscow, USSR
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.443-447. Publisher: Texas A & M University, Ocean Drilling Program, College Station, TX, United States. ISSN: 0080-8334 CODEN: IDSDA6
Note: In English. 3 refs.; illus. incl. 4 tables, 1 plate, chart
Summary: The cherts consist of cristobalite and quartz. Ghosts of forminifera and radiolaria suggest that local dissolution of siliceous microfossils during diagenesis is a likely source of silica for chert formation. As sediment age increases, the proportion of biogenic silica decreases and authigenic silica increases.
Year of Publication: 1983
Research Program: DSDP Deep Sea Drilling Project
IPOD International Phase of Ocean Drilling
Key Words: 06 Petrology, Sedimentary; 07 Marine Geology and Oceanography; Atlantic Ocean; Authigenic minerals; Biogenic processes; Calcium carbonate; Chalcedony; Chemically precipitated rocks; Chert; Clastic rocks; Cristobalite; DSDP Site 516; Deep Sea Drilling Project; Diagenesis; Foraminifera; Framework silicates; IPOD; Invertebrata; Leg 72; Materials; Microfossils; Opal; Opal-A; Opal-CT; Porcellanite; Protista; Quartz; Radiolaria; Rio Grande Rise; Sedimentary petrology; Sedimentary rocks; Silica; Silica minerals; Silicates; South American Atlantic; South Atlantic; Southwestern Atlantic
Coordinates: S301620 S301620 W0351706 W0351706
Record ID: 1984034738
Copyright Information: GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom