Priority: 3 Target Drilling Depth: 1000 mbsf Approved Maximum Penetration: 1000 mbsf Seismic Coverage: Primary line GeoB01-212, crossing line GeoB01-213
Objective: The primary objective for Site DR-1B is to sample mid-Cretaceous sediments at shallow paleowater depth (upper slope) to obtain information about the upper boundary of the oxygen minimum zone during OAEs and its fluctuation through time. Drilling Program: Double APC/XCB to refusal, RCB from XCB refusal depth to 1000 mbsf. Logging Program: Triple combo and FMS-sonic. Nature of Rock Anticipated: Foraminifer-nannofossil ooze, chalk, carbonaceous claystone, and black shales.