Site summaries (continued)

Site GC-10A

Priority: Alternate 1
Position: Lat 36°15'16"N (36°15.266), Long 6°48'W (–6°48) (WGS 84)
Water depth (m) 686
Target depth (mbsf): 991
Approved maximum penetration (mbsf): Pending EPSP/TAMU Safety Panel approval
Previous drilling in area: None
Comments: Jurisdiction: Portugal
Alternate to proposed Site GC-04B
Survey coverage (track map, seismic profile) • Bathymetric sketch of alternate proposed Site GC-10A and seismic lines position on the contourite depositional system on the middle slope of the Gulf of Cádiz (close to the Strait of Gibraltar) (Fig. AF15).
• Airgun seismic reflection (MCS) profile (Line CADIZ-21) across the middle slope (Fig. AF16)
Objectives (see text for complete details): Influence of the Gibraltar Gateway on MOW during the Quaternary and late Pliocene
Drilling/coring program: Double APC to refusal, then single XCB/RCB hole to 991 mbsf
Temperature measurements: APCT-3
Downhole logging program: Standard tools: triple combo, FMS-sonic, VSI
Anticipated lithology: Sands, silts ,and clays