Ontology highlight
ABSTRACT:
SUBMITTER: Stern JC
PROVIDER: S-EPMC4394254 | biostudies-literature | 2015 Apr
REPOSITORIES: biostudies-literature
Proceedings of the National Academy of Sciences of the United States of America 20150323 14
The Sample Analysis at Mars (SAM) investigation on the Mars Science Laboratory (MSL) Curiosity rover has detected oxidized nitrogen-bearing compounds during pyrolysis of scooped aeolian sediments and drilled sedimentary deposits within Gale crater. Total N concentrations ranged from 20 to 250 nmol N per sample. After subtraction of known N sources in SAM, our results support the equivalent of 110-300 ppm of nitrate in the Rocknest (RN) aeolian samples, and 70-260 and 330-1,100 ppm nitrate in Joh ...[more]