Sample ID: PANR04MV - 8D 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 1998-02-04 1998-02-04
Latitude -42.3833 -42.3867
Longitude -83.5783 -83.5867
Water depth (m) 3143 3137

SIO code PANR04MV-8D
SIO sample number 8D
IGSN number SIO000708
Ship name Melville
Navigation type TRIMBLE TASMAN P(Y) GPS
Sampling tool type dredge
Province rise or ridge - aseismic ocean
Crustal age model (mybp) 0.101608



Sub-sample information
Sub-sample number 1
Siocode PANR04MV-8D
Depth top (cm)
Depth bottom (cm)
Lithology
Texture
Composition
Geological age
Weight 150
Rock lithology igneous (extrusive/volcanic) - sheet flow basalt
Rock min
Weathering weathering - moderate
Remark some samples exhibit fresh glass
Munsell code
Exhaust code
Comments ~150kg basalt pillows and massive flow glassy with thin Mn coat surface oxidized some interior alteration to clay. Segment S-5 South Chile Ridge Ridge.