Sample ID: PLTO03MV - 001D Sample Type: Dredge

Cruise information: PLTO03MV Start End Cruise dates 1981-01-01 1981-10-31 Cruise ports Puntarenas, Costa Rica Manzanillo, Mexico SIO cruise id PLTO03MV Cruise name PLUTO LEG 3 Chief scientist Weiss, Ray Cruise narrative To escort Lulu/Alvin- conduct sampling operations, and launch and recover the large MANOP lander at two sites of the MANOP project. The general scientific purpose is further geological and geochemical characterization of these sites, plus conducting in situ geochemical experiments. Cruise ngdc number 15020124 Proposal title

Sample information PLTO03MV Start End Date 1981-08-31 1981-08-31 Latitude 15.89 15.9 Longitude -98.88 -98.9 Water depth (m) 4370 4370 SIO code PLTO03MV-001D SIO sample number 001D IGSN number SIO000864 Ship name Melville Navigation type SATNAV-AUTO LOG GYRO+2D DOPPLER SPD LOG Sampling tool type dredge Province Crustal age model (mybp) 271.069

Sub-sample information Sub-sample number 1 Siocode PLTO03MV-001D Depth top (cm) Depth bottom (cm) Lithology Texture plutonic igneous rock Composition Geological age Weight Rock lithology Rock min Weathering Remark Munsell code Exhaust code Comments 60%GRANITE COBL Sub-sample number 2 Siocode PLTO03MV-001D Depth top (cm) Depth bottom (cm) Lithology Texture metamorphic rock Composition Geological age Weight Rock lithology Rock min Weathering Remark Munsell code Exhaust code Comments 20%MARBLESCHIST Sub-sample number 3 Siocode PLTO03MV-001D Depth top (cm) Depth bottom (cm) Lithology terrigenous Texture terrigenous clastic sedimentary rock muddy sand Composition volcanics Geological age Weight Rock lithology Rock min Weathering Remark Munsell code Exhaust code Comments 20% MUDSTONE P.LONSDALE+GREG MOORE