Crew 186 EVA Report 02JAN2018
Author: Cesare Guariniello
Purpose of EVA: Complete EVA #1 that was cut short: spectral sampling of clays and searching for hematite spherules in Greenstone region.
Destination: Greenstone region east of Greenstone Rd
Participants: Kshitij, Cesare, Mark, Sam
Narrative: This EVA was the first one for the three crew members who had not participated into the EVA yesterday. Since the first EVA had been cut short, the crew geologist joined this EVA to complete the tasks planned for the previous day. The planned sites were the region East of Greenstone Rd, and on the way back the region between Zubrin’s Head and Robert’s Rock Garden, both for collecting more clays and looking for hematite “blueberries”. The crew felt unusual levels of heat, due to a clear bright Sun, which also made it challenging to drive heading South, and possibly prevented the crew from identifying the access to Greenstone Road. Feeling that they might have overshot the intended destination, the crew parked the rovers and found out that they had reached White Rock Canyon, slightly South of Greenstone Road. The incredible sight and the discovery of a stream of frozen water at the bottom of the canyon prompted the EVA crew to take a few photos to document the area, before heading back to the rovers and finally reaching the intended destination, at the beginning of Greenstone Road. While the crew had no luck with the search for hematite blueberries, Cesare analyzed and collected more clay sample, with the support of Kshitij, Mark, and Sam. In the meanwhile, Kshitij also grabbed videos of the crew activity, while Sam took breathtaking photos of the location and of the crew.
After spending one hour and fifteen minutes at the first location, the crew headed back Northwest to stop at a second location, to the West of Cow Dung Road, where one more hour was spent in field activities. Cesare found a couple of promising rounded pebbles which appear to have a spectrum that at least partially resembles hematite.
Having lost communication with the habitat after crossing the first ridge, the crew observed line-of-sight rules for safety, and -among the research work- took time to think of their expedition and their goals. We were all amazed at the extreme resemblance of the location to plains on Mars, in colors, aspect, and mineralogy. Watching the landscape from the top of a ridge while wearing a space suit is an amazing experience!
When the EVA crew members came back, they were welcomed by the rest of the crew with well deserved water, before a very useful debriefing that will help in future EVAs. The crew performed very well with the 25-50-25 rule, actually spending only thirty minutes on the drive out and back, and two hours and fifteen minutes in the field!
Cesare Guariniello, PhD