Ocean drilling program: Recent results and future drilling plans

Conference · Mon Feb 01 04:00:00 EST 1993 · Geological Society of America, Abstracts with Programs; (United States)

OSTI ID:6137993

Rabinowitz, P D; Francis, T J.G.; Baldauf, J G; Allan, J F; Heise, E A; Seymour, J C ^[1]

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1. Texas A and M Univ., College Station, TX (United States)

The Ocean Drilling Program (ODP) has completed 48 internationally-staffed expeditions of scientific ocean drilling in search of answers relating to the evolution of passive and active continental margins, evolution of oceanic crust, origin and evolution of marine sedimentary sequences, and paleoceanography. During the past year of drilling operations, ODP expeditions cored Cretaceous reef-bearing guyots of the Western Pacific, with the objective of using them as monitors of relative sea-level changes and thereby of the combined effects of the tectonic subsidence (and uplift) history of the seamounts and of global fluctuations of sea level (Legs 143 and 144); studied high-resolution variations of surface and deep-water circulation and chemistry during the Neogene, the late Cretaceous and Cenozoic history of atmospheric circulation, ocean chemistry, and continental climate, and the age and nature of the seafloor in the North Pacific (Leg 145); studied the relationship between fluid flow and tectonics in the accretionary wedge formed at the Cascadia convergent plate boundary off Vancouver and Oregon (Leg 146); drilled in Hess Deep to understand igneous, tectonic and metamorphic evolution of fast spreading oceanic crust and to understand the processes of rifting in young ocean crust (Leg 147); and continued efforts at Hole 504B at 2,000 mbsf, the deepest hole they have beneath seafloor (Leg 148). After Leg 148 (March 1993), the JOIDES Resolution will commence an Atlantic Ocean drilling campaign.

• OSTI ID: 6137993
• Report Number(s): CONF-9303212--
• Conference Information: Journal Name: Geological Society of America, Abstracts with Programs; (United States) Journal Volume: 25:1
• Country of Publication: United States
• Language: English

Related Subjects

58 GEOSCIENCES
580000* -- Geosciences
CONTINENTAL MARGIN
DRILLING
EARTH CRUST
GEOLOGIC HISTORY
GEOLOGY
LEVELS
OCEANIC CIRCULATION
OCEANIC CRUST
OCEANOGRAPHY
OFFSHORE DRILLING
PACIFIC OCEAN
PALEOCLIMATOLOGY
PALEONTOLOGY
RESEARCH PROGRAMS
SEA LEVEL
SEAS
SURFACE WATERS
VARIATIONS