Subj : ES Picture of the Day 16  2022
To   : All
From : Dan Richter
Date : Wed Nov 16 2022 11:01:02

 EPOD - a service of USRA

The Earth Science Picture of the Day (EPOD) highlights the diverse processes
and phenomena which shape our planet and our lives. EPOD will collect and
archive photos, imagery, graphics, and artwork with short explanatory
captions and links exemplifying features within the Earth system. The
community is invited to contribute digital imagery, short captions and
relevant links.


 Microbialites in Puna Argentina

   November 16, 2022


    Microbialitos

   Photographer:  Carlos Di Nallo
   Summary Author:  Carlos Di Nallo
   In the lagoon shown above, in the  Catamarca province of Argentina,
   modern  microbialites can be observed. These ecosystems are "living
   rocks" formed by  diatom microorganisms and by various minerals.
   They’re among the oldest ecosystems on our planet and dominated it for
   3-billion years, producing large amounts of oxygen and are even
   responsible for helping to create the  ozone layer.

   Today, they’re found in remote areas of northwestern Argentina, an
   environment similar to that of many regions on Earth millions of years
   ago -- high  solar radiation and salinity conditions. They were
   discovered by the Argentine scientist  Dr. Maria Eugenia Farias.
   Photo taken on May 15, 2022.

   Antofagasta de la Sierra, Catamarca, Argentina Coordinates:
   -26.066667, -67.416667


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   Earth Science Picture of the Day is a service of the  Universities
   Space Research Association.

https://epod.usra.edu
 
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