Sample ID: PANR04MV - 24D Sample Type: Dredge


Cruise information: PANR04MV
Start End
Cruise dates 1998-01-15 1998-03-02
Cruise ports Valparaiso, Chile Easter Island, Chile

SIO cruise id PANR04MV
Cruise name PANORAMA EXPEDITION LEG 4
Chief scientist Kartsten, Jill
Cruise narrative Marine geophysical survey of the Northern Chile Ridge and Valdivia Fracture zone system- using SEA BEAM, gravity, magnetics, the 3.5 kHz echosounder, and dredging. During a transit the Challenger Fracture Zone and its intersection with major pseudofault boundaries was mapped.
Cruise ngdc number 15020177
Proposal title Geophysical and Petrological Study of the Northern Chile Ridge/Valdivia Fracture Zone



Sample information PANR04MV
Start End
Date 1998-02-07 1998-02-07
Latitude -41.58 -41.585
Longitude -84.345 -84.3433
Water depth (m) 4074 4112

SIO code PANR04MV-24D
SIO sample number 24D
IGSN number SIO000668
Ship name Melville
Navigation type TRIMBLE TASMAN P(Y) GPS
Sampling tool type dredge
Province rise or ridge - aseismic ocean
Crustal age model (mybp) 0.354187



Sub-sample information
Sub-sample number 1
Siocode PANR04MV-24D
Depth top (cm)
Depth bottom (cm)
Lithology
Texture
Composition
Geological age
Weight 50
Rock lithology igneous (extrusive/volcanic) - basalt - pillow
Rock min
Weathering
Remark >50% samples exhibit fresh glass
Munsell code
Exhaust code
Comments ~50kg fresh basalt with glass. Some hydrothermal staining. Segment 6A South Chile Ridge.