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