PMID- 19586394
OWN - NLM
STAT- MEDLINE
DCOM- 20091028
LR  - 20151119
IS  - 1557-8070 (Electronic)
IS  - 1557-8070 (Linking)
VI  - 9
IP  - 6
DP  - 2009 Jul-Aug
TI  - The effect of evaporated salt solutions on the optical dating properties of JSC 
      Mars-1: "seasoning" for a Mars soil simulant.
PG  - 531-4
LID - 10.1089/ast.2008.0307 [doi]
AB  - Optically stimulated luminescence dating, or optical dating, is an established 
      terrestrial geochronometric technique that is being adapted to date sedimentary 
      deposits and landforms on the surface of Mars. Recent discoveries have 
      highlighted the astrobiological significance and occurrence of halite on the 
      surface of Mars. The objective of the experiments in this study was to create a 
      simplistic analogue of the sedimentary material that would result from 
      evaporation of ion-containing pore water out of martian regolith and evaluate the 
      influence the evaporated salts would have on in situ optical dating of silicate 
      sediments. The radiation dose response, as measured by infrared stimulated 
      luminescence (IRSL), from evaporated mixtures of JSC Mars-1 and solutions of 
      sodium chloride and calcium sulfate was documented. The results suggest that the 
      presence of CaSO(4) and NaCl within the aggregated particles does not have 
      adverse effects on IRSL dose response and that aggregates of this type exhibit 
      dose response characteristics that are appropriate for optical dating.
FAU - Lepper, Kenneth
AU  - Lepper K
AD  - Optical Dating and Dosimetry Lab, Department of Geosciences, North Dakota State 
      University, Fargo, North Dakota 58105, USA. ken.lepper@ndsu.edu
LA  - eng
PT  - Journal Article
PT  - Research Support, U.S. Gov't, Non-P.H.S.
PL  - United States
TA  - Astrobiology
JT  - Astrobiology
JID - 101088083
RN  - 0 (Solutions)
RN  - 451W47IQ8X (Sodium Chloride)
RN  - WAT0DDB505 (Calcium Sulfate)
SB  - IM
MH  - Calcium Sulfate/*chemistry
MH  - Computer Simulation
MH  - Extraterrestrial Environment/*chemistry
MH  - Infrared Rays
MH  - *Mars
MH  - *Optical Phenomena
MH  - Sodium Chloride/*chemistry
MH  - Solutions
MH  - Volatilization
EDAT- 2009/07/10 09:00
MHDA- 2009/10/29 06:00
CRDT- 2009/07/10 09:00
PHST- 2009/07/10 09:00 [entrez]
PHST- 2009/07/10 09:00 [pubmed]
PHST- 2009/10/29 06:00 [medline]
AID - 10.1089/ast.2008.0307 [doi]
PST - ppublish
SO  - Astrobiology. 2009 Jul-Aug;9(6):531-4. doi: 10.1089/ast.2008.0307.