Sample ID: WEST03MV - 01D Sample Type: Dredge

Cruise information: WEST03MV Start End Cruise dates 1994-02-14 1994-03-21 Cruise ports Wellington, New zealand Iquique, Chile SIO cruise id WEST03MV Cruise name WESTWARD LEG 3 Chief scientist Bloomer, Sherman Cruise narrative The cruise is a follow-up to a previous cruise- Structure and Geomorphology of the Eltanin Transform System, and will use the bathymetry collected from the previous cruise to choose locations for dredging. Rock samples will be analyzed to determine the chemical composition and origin of the crustal rocks. Cruise ngdc number NA Proposal title Petrology of the Eltanin Transform Fault System

Sample information WEST03MV Start End Date 1994-02-20 1994-02-20 Latitude -55.905 -55.9 Longitude -144.912 -144.9 Water depth (m) 2845 2779 SIO code WEST03MV-01D SIO sample number 01D IGSN number SIO000959 Ship name Melville Navigation type GPS-TRIMBLE MOD. 4000AX Sampling tool type dredge Province ridge crest Crustal age model (mybp) 0.354515

Sub-sample information Sub-sample number 1 Siocode WEST03MV-01D Depth top (cm) Depth bottom (cm) Lithology Texture Composition Geological age Weight Rock lithology igneous (extrusive/volcanic) - basalt Rock min plagioclase (pg) Weathering weathering - moderate Remark notable Mn/Fe oxide coatings Munsell code Exhaust code Comments 20GMS. MN ENCRUSTED BASALTIC GLASS