Site U1454

Abstract

Background and objectives 4 Operations 6 Lithostratigraphy 12 Biostratigraphy 13 Paleomagnetism 15 Geochemistry and microbiology 18 Physical properties 22 Downhole measurements 22 Stratigraphic synthesis 26 References Hole U1454A Hole U1454B Latitude: 8°0.4067′N Latitude: 8°0.4083′N Longitude: 85°50.9882′E Longitude: 85°51.0025′E Time on hole (days): 0.4 (9.00 h) Time on hole (days): 1.6 (37.5 h) Seafloor (drill pipe measurement below rig floor, m DRF): 3721.0 Seafloor (drill pipe measurement below rig floor, m DRF): 3721.4 Distance between rig floor and sea level (m): 11.1 Distance between rig floor and sea level (m): 11.1 Water depth (drill pipe measurement from sea level, mbsl): 3709.9 Water depth (drill pipe measurement from sea level, mbsl): 3710.3 Total penetration (drilling depth below seafloor, m DSF): 7.5 Total penetration (drilling depth below seafloor, m DSF): 161.8 Total depth (drill pipe measurement from rig floor, m DRF): 3728.5 Total depth (drill pipe measurement from rig floor, m DRF): 3883.2 Total length of cored section (m): 7.5 Total length of cored section (m): 147.4 Total core recovered (m): 7.54 Total core recovered (m): 129.51 Core recovery (%): 101 Core recovery (%): 88 Drilled interval (m): 0.0 Drilled interval (m): 14.4 Total number of cores: 1 Total number of cores: 29 Hole U1454C Hole U1453D Latitude: 8°0.3868′N Latitude: 8°0.3975′N Longitude: 85°51.0033′E Longitude: 85°5.9927′E Time on hole (days): 0.3 (8 h) Time on hole (days): 0.6 (14.00 h) Seafloor (drill pipe measurement below rig floor, m DRF): 3721.4 Seafloor (drill pipe measurement below rig floor, m DRF): 3721.8 Distance between rig floor and sea level (m): 11.1 Distance between rig floor and sea level (m): 11.1 Water depth (drill pipe measurement from sea level, mbsl): 3710.3 Water depth (drill pipe measurement from sea level, mbsl): 3710.7 Total penetration (drilling depth below seafloor, m DSF): 37.2 Total penetration (drilling depth below seafloor, m DSF): 37.1 Total depth (drill pipe measurement from rig floor, m DRF): 3758.6 Total depth (drill pipe measurement from rig floor, m DRF): 3758.9 Total length of cored section (m): 37.2 Total length of cored section (m): 37.1 Total core recovered (m): 30.16 Total core recovered (m): 24.46 Core recovery (%): 81 Core recovery (%): 66 Drilled interval (m): 0.0 Drilled interval (m): 0.0 Total number of cores: 6 Total number of cores: 5