Curiosity discovers evidence of a lake stratified in primitive Mars
01-06-2017

A scientific team with the participation of researchers from the Astrobiology Center has used the data obtained by Curiosity to perform a geological reconstruction of the crater environment Gale , revealing the presence of an ancient stratified lake, which could remain present for tens of thousands or even millions of years.

NASA's rover Curiosity landed in 2012 in the crater Gale with
the objective of determining if Mars had in the past conditions
favorable environmental conditions for microbial life. The results
obtained from the geochemical analyzes carried out along the
The route of the rover are making it possible to study the conditions
environmental impacts in the crater over time. The evidence
collected by Curiosity confirms the existence of an ancient lake
stratified, with a chemical discontinuity between the waters
superficial, richest in oxidants, and the deepest, poorest
in them. Chemical stratification is a common phenomenon in many
lakes of the Earth. The interest these results is that this
ecosystem type offers a huge diversity of environments
favorable for the growth of microorganisms, fundamentally
for those who are able to get energy in the interface
between both geochemical environments. In the crater Gale , you're
conditions could be given between 3,800 and 3,100 million
years.


Figure : artistic image of the ancient lake that was in the
Gale crater (© Kees Veenenbos).

 

Fuente: UCC-CAB

 

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