Project:
Extremophile sample collection


Personnel:
John Thaler, Anna Grinberg, Cheryl Wartman


Operations Data Collected:
This project is part of a larger study which aims to identify
extremophile microbial populations in the MDRS area. The term
"extremophiles" applies to organisms that can live in extreme
conditions. This can include extremes of temperature, salinity,
pressure etc. This particular batch of samples were taken from
evaporite deposits which form as surface water evaporates and leave the
dissolved salts on the surface. The organisms which grow in high salt
environments are known as halophiles.

Five samples were collected from Lith Canyon evaporite deposits. All
sites exhibited a white powder or crust on top of underlying soil or
rock sediment.

L001: UTM (NAD 27) 12 S 0518730 4256373 riverbed bottom
   

L002: UTM (NAD 27) 12 S 0518583 4256439 ridge slope
   

L003: UTM (NAD 27) 12 S 0518408 4256522 riverbed bottom
   

L004: UTM (NAD 27) 12 S 0518528 4257000 riverbed edge
   

L005: UTM (NAD 27) 12 S 0518529 4256999 riverbank wall
   

For visuals of these sites see the pictures below.


Technical/Equipment Issues:
Field sterilization of collection tools was difficult in high wind
situations and non-flammable gloves are a safety requirement.


Discussion:
Five sample sites were identified and collected. The next EVA will
take an improved lighter system. Two additional sites were identified
for a future EVA. Those sites were 12 S 0518903 4256381 and 12 S
0518852 4256526.


Questions for RST:
None at this time.