Sample ID: PANR01MV - 10D Sample Type: Dredge

Cruise information: PANR01MV Start End Cruise dates 1997-11-02 1997-12-11 Cruise ports San Diego, California Acapulco, Mexico SIO cruise id PANR01MV Cruise name PANORAMA EXPEDITION LEG 1 Chief scientist Langmuir, Charles Cruise narrative Marine geology and geochemistry program- with 93 dredges and 117 rock cores, including intensive sampling of the EPR axis south of the Tamayo transform fault and near-axial small seamount chains. Additional surveys were made of the Mathematician microplate, with fresh glass beneath thick manganese crusts. Two new hydrothermal fields were discovered. A survey of the fossil Mathematician spreading center revealed a number of intriguing new features. Cruise ngdc number 15020176 Proposal title Collaborative Research: Constraints on EPR Mangetism Through Studies of the North Orozco Region

Sample information PANR01MV Start End Date 1997-11-11 1997-11-11 Latitude 16.55 16.5533 Longitude -105.216 -105.228 Water depth (m) 2640 2585 SIO code PANR01MV-10D SIO sample number 10D IGSN number SIO000593 Ship name Melville Navigation type TRIMBLE TASMAN P(Y) GPS Sampling tool type dredge Province ridge flank Crustal age model (mybp) 1.02234

Sub-sample information Sub-sample number 1 Siocode PANR01MV-10D Depth top (cm) Depth bottom (cm) Lithology Texture Composition Geological age Weight Rock lithology igneous (extrusive/volcanic) - basalt - pillow Rock min Weathering weathering - heavy - very Remark Munsell code Exhaust code Comments EPR - off-axis. Older altered pillow basalt and buds.