Eva Report
02/17/2013
Kent Nebergall
Eva Number:
7
Eva Date:
2/17/2013
Time Slot:
earlyPM
Purpose:
We were looking for gypsum seams in the canyon for the Curiosity drill study. We were successful and have samples, photos, and attempts at HD video of the process.
Narrative:
We found five drill sites ranging from thin seems (probably contaminated with mud from above and below, sample 1-2) to pure gypsum fine grained material (sample 3). April then found some crystalline gypsum (sample 4) and a boulder from a rockslide with another relatively pure sample (5).
We have images with coordinates of each drill site, some HD video, and some engineering photos of the process as requested.
Incidentally, we also encountered cougar tracks of a large animal that overlapped our return tracks. We took precautions such as firing the hammer drill periodically and talking, never being more than a few feet form each other, avoiding overhangs, and so on.
Eva Depart Time:
2:00
Check In Time One:
Check In One E:
Check In One N:
Check In Note One:
Check In Time Two:
Check In East Two:
Check In Note Two:
Check In Time Three:
Check In East Three:
Check In North Three:
Check In Note Three:
Check In Time Four:
Check In East Four:
Check In North Four:
Check In Note Four:
Eva Return Time:
5:30
Wp1 E:
520223
Wp1 N:
4251370
Waypoint1arrive Time:
2:40
Eva W P1depart Time:
2:50
Wp1 Find:
First gypsum drill samples, thin seams, probably contaminated with mud, but wanted to emulate curiosity site.
Wp2 E:
520355
Wp2 N:
4251168
Eva W P2arrive Time:
2:58
Eva W P2depart Time:
3:12
Wp2 Find:
Thick pure gypsum powdery seam to get clean sample drilling.
Wp3 E:
520349
Wp3 N:
4251175
Eva W P3arrive Time:
3:17
Eva W P3depart Time:
3:25
Wp3 Find:
Drilling of crystaline gypsum seam.
Wp4 E:
520498
Wp4 N:
4251085
Eva W P4arrive Time:
3:40
Eva W P4depart Time:
3:50
Waypoint Four Finding:
Drilling at boulder from rockfall (too dangerous to attempt climb).
Waypoint Five Easting:
Waypoint Five Northing:
Waypoint Five Arrive Time:
Waypoint Five Depart Time:
Waypoint Five Findings: