Nature and origin of the oceanic lithosphere; some insights from past ocean drilling and plans for the future

Author(s): Gillis, Kathryn M.
Author Affiliation(s): Primary:
University of Victoria, School of Earth and Ocean Sciences, Victoria, BC, Canada
Other:
Husky Oil Operations, Canada
Volume Title: Ocean drilling; successes, opportunities and challenges
Volume Author(s): Srivastava, Shiri, convener; Salisbury, Matthew; Enachescu, Michael
Source: Geoscience Canada, 28(4), p.163-170; GeoCanada 2000 millennium conference; ODP's 100 greatest hits, Calgary, AB, Canada, June 1, 2000, convened by Shiri Srivastava, Matthew Salisbury and Michael Enachescu. Publisher: Geological Association of Canada, Toronto, ON, Canada. ISSN: 0315-0941 CODEN: GSCNA5
Note: In English with French summary. 27 refs.; illus., incl. block diag., strat. cols.
Summary: The Deep Sea Drilling Project (DSDP) and Ocean Drilling Program (ODP) have fundamentally changed our understanding of the Earth system. Drilling in the south Atlantic Ocean provided the critical test of the theory of plate tectonics and initiated innovative programs to investigate the products, fluxes, and processes associated with the creation, evolution, and recycling of the oceanic lithosphere. Key findings include a new and evolving understanding of the range and complexity of processes of oceanic lithosphere creation, and their probable importance in global geochemical cycles and seawater composition over time. Major questions remain about details, rates, and significance of lithospheric processes and fluxes. The expanded capabilities of the Integrated Ocean Drilling Program (IODP, to begin in 2003), will offer many exciting opportunities, including a chance to assess the role of lithospheric creation in global geochemical and climatic cycles.
Year of Publication: 2001
Research Program: DSDP Deep Sea Drilling Project
ODP Ocean Drilling Program
Key Words: 07 Marine Geology and Oceanography; 18 Geophysics, Solid-Earth; Atlantic Ocean; Black smokers; Climate change; Cores; Crust; Deep Sea Drilling Project; Geochemical cycle; Geophysical methods; Hydrothermal vents; Integrated Ocean Drilling Program; Lithosphere; Massive deposits; Massive sulfide deposits; Mid-ocean ridges; Mineral composition; Mineral resources; Ocean Drilling Program; Ocean floors; Oceanic crust; Oceanic lithosphere; Petrology; Plate tectonics; Programs; Sea-floor spreading; Seismic methods; South Atlantic; Velocity structure
Record ID: 2002076708
Copyright Information: GeoRef, Copyright 2019 American Geosciences Institute.

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