Priority: Secondary site alternate to F3
Position: 24°36.00'N; 79°14.56'W
Water depth: 390 m
Sediment thickness: >8000 m
Total Penetration: 358 mbsf (approved to a depth of 560 mbsf)
Seismic Coverage: High-resolution MCS survey
Objectives: The objective of F-21 is to reveal possible fluid flow through this portion of the margin
Drilling program:
Hole A: APC to refusal.
Logging and downhole: ADARA heatflow measurements will be made on the first eight APC cores below Core 3 and one every third core thereafter. No wireline logging anticipated.
Nature of Rock Anticipated: Periplatform ooze occasionally mixed with coarser grained units.