EVA Report

Crew 226 EVA Report 27-01-2022

EVA #: 8

Author: Maria Bustos, Felipe Torres

Purpose of EVA: Recognition of the lithology and geological description of the zone. Collection of clay samples.

Start time: 10:00 am

End time: 2:00 pm

Narrative:

The crew headed to Phobos Peak by foot. The crew geologist was leading this EVA as the main purpose was to describe some geological features of the zone.

The description is as follows:

Station 1.

Coordinates (UTM): 0519285X, 4250233Y

Orientation of the rock: 200°SW /6°NW

The outcrop was made of some sandstone beds surrounded by regolith. A lot of weathering was observed in the zone.

Station 2.

Coordinates (UTM): 0519076X, 4250379Y

Orientation of the rock: 182°S / 3°E

The outcrop depicted some clays surrounded by regolith. The clays had some metallic minerals which appear to be pyrite or chalcopyrite.

Station 3.

Coordinates (UTM): 0518607X, 4250091Y

Orientation of the rock: 314°NW / 28°SE

The outcrop showed some clear lamination of white clays in between a brownish regolith.

Station 4.

Coordinates (UTM): 0518549X, 4250489Y

Orientation of the rock: 232°SW/ 27°SE

Some beds were observed outcropping out from the floor with a clear laminar bedding. The rocks were classified as sedimentary of very fine grains.

Destination: Phobos Peak

Coordinates (use UTM NAD27 CONUS): 519300, 4250300

EVA Participants: Cristian Acosta, Maria Bustos, Carlos Salazar

Road(s) and routes per MDRS Map: MDRS Entrance Road

Mode of travel: by foot

Felipe Torres, Crew Scientist