Leg 167 scientific prospectus; California Margin

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Author(s): Anonymous
Source: Scientific Prospectus, Vol.167, 78p. Publisher: Ocean Drilling Program, Texas A&M University, College Station, TX, United States. ISSN: 1058-1448
Note: In English. The reports in this series become obsolete after a cruise sails and will not be distributed. 30 refs.
Summary: Leg 167 will investigate the evolution of oceanogaphic conditions in the north Pacific Ocean and will document changes in flow of the California Current system and associated changes in coastal upwelling. These data will be used to reconstruct north Pacific climate conditions through the Neogene, concentrating upon the time period since the advent of northern hemisphere glaciation, ∼2.5 Ma to the present. Approximately one third of the proposed drill sites will also sample lower and middle Miocene sediments to reconstruct a Neogene history of the California Current. The results of Leg 167 drilling will also be used to better understand the links between climates of the north Pacific Ocean and western North America, particularly in terms of temperature change and changes in precipitation. Thirteen proposed sites and five alternates are organized into three transects across the California Current (Baja Transect, ∼30°N; Conception Transect, ∼35°N; and Gorda Transect, ∼40°N) and one coastal transect extending from northern Baja California to the California/Oregon border, 30°N to 42°N. Each of the three transects across the California Current will compare deep-water sites near the core of the California Current to coastal upwelling sites near shore. The coastal transect will examine variations in upwelling and productivity along the California margin, and will also examine intermediate water properties in many of the basins of the California Continental Borderland.
Year of Publication: 1996
Research Program: ODP Ocean Drilling Program
Key Words: 12 Stratigraphy, Historical Geology and Paleoecology; California; Cenozoic; Continental margin; Cores; Currents; Depositional environment; East Pacific; Leg 167; Miocene; Neogene; North Pacific; Northeast Pacific; Ocean Drilling Program; Ocean currents; Ocean floors; Pacific Ocean; Paleo-oceanography; Paleoclimatology; Paleoenvironment; Reconstruction; Tertiary; United States
Coordinates: N280000 N420000 W1170000 W1280000
Record ID: 2007026797
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