Sample ID: PANR04MV - 98D 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 1998-02-23 1998-02-24
Latitude -37.9467 -37.95
Longitude -94.0917 -94.09
Water depth (m) 3443 3473

SIO code PANR04MV-98D
SIO sample number 98D
IGSN number SIO000717
Ship name Melville
Navigation type TRIMBLE TASMAN P(Y) GPS
Sampling tool type dredge
Province rise or ridge - aseismic ocean
Crustal age model (mybp) 0.485836



Sub-sample information
Sub-sample number 1
Siocode PANR04MV-98D
Depth top (cm)
Depth bottom (cm)
Lithology
Texture
Composition
Geological age
Weight .25
Rock lithology igneous (extrusive/volcanic) - basalt - plagioclase phyric
Rock min
Weathering
Remark some samples exhibit fresh glass
Munsell code
Exhaust code
Comments One small plagioclase phyric pillow with thin glass and loose glass chips. North Chile Ridge.