167 Prospectus

SITE CA-8A

LOCATION:  Sediment drift south of Guide Seamount, central California margin

PRIORITY:  1

POSITION:  36° 59.392' N 123° 16.581' W  (EW9504 CA8 line 3 shotpoint 1542)

WATER DEPTH:  2508 m

SEDIMENT THICKNESS:  > 1.2 sec (960 m)

TOTAL PENETRATION:  400 m

SEISMIC COVERAGE:  EW9504 CA8 survey; miscellaneous regional.

OBJECTIVES:  Coastal transect, southern depth transect. To sample an upper
  Miocene to Holocene sediment section to reconstruct the history of
 upwelling near Monterey Bay, and as an intermediate depth site in
  southern depth transect.

DRILLING PROGRAM:  2 APCs to refusal, third APC to 50 m or longer if time 
available. XCB to total penetration.

LOGGING AND DOWNHOLE OPERATIONS:  Standard Quad Combo, FMS, and geochemical 
logging strings. GHMT magnetic logging if core samples indicate 
feasibility.

NATURE OF ROCK ANTICIPATED:  Hemipelagic sediments. 

To Site CA-9D

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