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Iturrino, Gerardo J; Ketcham, Richard A; Christiansen, Lizet B; Boitnott, Greg (2004): (Table T1) Permeability, electrical resistivity and density of ODP Hole 193-1188A and Site 193-1189 minicores, PACMANUS field. PANGAEA,, Supplement to: Iturrino, GJ et al. (2004): Data report: Permeability, resistivity, and X-Ray computed tomography measurements in samples from the PACMANUS hydrothermal system. In: Barriga, FJAS; Binns, RA; Miller, DJ; Herzig, PM (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 193, 1-14,

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Magmatic fluids, heat fluxes, and fluid/rock interactions associated with hydrothermal systems along spreading centers and convergent margins have a significant impact on the genesis of major sulfide deposits and biological communities. Circulation of hydrothermal fluids is one of the most fundamental processes associated with localized mineralization and is controlled by inherent porous and permeable properties of the ocean crust. Heat from magmatic intrusions drives circulation of seawater through permeable portions of the oceanic crust and upper mantle, discharging at the seafloor as both focused high-temperature (250°-400°C) fluids and diffuse lower-temperature (<250°C) fluids. This complex interaction between the circulating hydrothermal fluids and the oceanic basement greatly influences the physical properties and the composition of the crust (Thompson, 1983; Jacobson, 1992, doi:10.1029/91RG02811; Johnson and Semyan, 1994, doi:10.1029/93JB00717).
During Ocean Drilling Program (ODP) Leg 193, 13 holes were drilled in the PACMANUS hydrothermal system (Binns, Barriga, Miller, et al., 2002, doi:10.2973/ The hydrothermal system consists of isolated hydrothermal deposits lined along the main crest of the Pual Ridge, a 500- to 700-m-high felsic neovolcanic ridge in the eastern Manus Basin. The principal drilling targets were the Snowcap (Site 1188) and Roman Ruins (Site 1189) active hydrothermal fields. Samples from these two sites were used for a series of permeability, electrical resistivity, and X-ray computed tomography measurements.
Related to:
Thompson, Geoffrey (1983): Basalt-seawater interaction. In: Rona, PA; Boström, K; Laubier, L; Smith, KL Jr. (Eds.) Hydrothermal Processes at Seafloor Spreading Centers, New York (Plenum), 225-278
Median Latitude: -3.723200 * Median Longitude: 151.673300 * South-bound Latitude: -3.728300 * West-bound Longitude: 151.669900 * North-bound Latitude: -3.720600 * East-bound Longitude: 151.675100
Date/Time Start: 2000-11-18T17:30:00 * Date/Time End: 2000-12-26T17:00:00
Minimum DEPTH, sediment/rock: 19.33 m * Maximum DEPTH, sediment/rock: 166.73 m
193-1188A * Latitude: -3.728300 * Longitude: 151.669900 * Date/Time Start: 2000-11-18T17:30:00 * Date/Time End: 2000-11-22T08:30:00 * Elevation: -1640.2 m * Penetration: 211.6 m * Recovery: 21.93 m * Location: Bismarck Sea * Campaign: Leg193 * Basis: Joides Resolution * Device: Drilling/drill rig (DRILL) * Comment: 23 cores; 211.6 m cored; 0 m drilled; 10.4 % recovery
193-1189A * Latitude: -3.720700 * Longitude: 151.674900 * Date/Time Start: 2000-11-22T08:30:00 * Date/Time End: 2000-11-23T20:45:00 * Elevation: -1690.2 m * Penetration: 125.8 m * Recovery: 8.58 m * Location: Bismarck Sea * Campaign: Leg193 * Basis: Joides Resolution * Device: Drilling/drill rig (DRILL) * Comment: 13 cores; 125.8 m cored; 0 m drilled; 6.8 % recovery
193-1189B * Latitude: -3.720600 * Longitude: 151.675100 * Date/Time Start: 2000-12-22T07:45:00 * Date/Time End: 2000-12-26T17:00:00 * Elevation: -1681.7 m * Penetration: 206 m * Recovery: 13.69 m * Location: Bismarck Sea * Campaign: Leg193 * Basis: Joides Resolution * Device: Drilling/drill rig (DRILL) * Comment: 18 cores; 175 m cored; 31 m drilled; 7.8 % recovery
#NameShort NameUnitPrincipal InvestigatorMethodComment
1Event labelEvent
2Sample code/labelSample labelIturrino, Gerardo JODP sample designation
3Elevation of eventElevationm
4DEPTH, sediment/rockDepthmGeocode – mbsf
5PorosityPoros% volIturrino, Gerardo J
6Density, wet bulkWBDg/cm3Iturrino, Gerardo J
7Density, grainDensity graing/cm3Iturrino, Gerardo J
8Pressure, stressPMPaIturrino, Gerardo J
9Permeability (earth science)k10-12 m2Iturrino, Gerardo JAutolab
10Resistivity, electricalResist electrOhm mIturrino, Gerardo JAutolab
11Formation factorFIturrino, Gerardo J
12Sample commentSample commentIturrino, Gerardo J
711 data points

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