Sample ID: PANR04MV - 100D 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 1998-02-24 1998-02-24 Latitude -37.645 -37.6417 Longitude -94.095 -94.0883 Water depth (m) 3140 3118 SIO code PANR04MV-100D SIO sample number 100D IGSN number SIO000645 Ship name Melville Navigation type TRIMBLE TASMAN P(Y) GPS Sampling tool type dredge Province rise or ridge - aseismic ocean Crustal age model (mybp) 0.137672

Sub-sample information Sub-sample number 1 Siocode PANR04MV-100D Depth top (cm) Depth bottom (cm) Lithology Texture Composition Geological age Weight 200 Rock lithology igneous (extrusive/volcanic) - basalt - plagioclase phyric Rock min Weathering Remark >50% samples exhibit fresh glass Munsell code Exhaust code Comments ~200kg plagioclase phyric glassy massive lavas. North Chile Ridge.