joerojasburke:

Views of a Martian lake bed (left) compared to Earth features that were formed by microbial mats (right). 

The Martian sandstone, about 3.7 billion years old, appears to have layers of stacked microbial mats, pockets eroded into those layers, and places where sections of mat rolled up or cracked after drying out.  

Nora Noffke, who mustered the evidence, says:

This hypothesis is testable and warrants further scrutiny in current and near-term missions to Mars.

Source: Ancient Sedimentary Structures in the <3.7 Ga Gillespie Lake Member, Mars, that Compare in Macroscopic Morphology, Spatial Associations, and Temporal Succession with Terrestrial Microbialites, by Nora Noffke, Astrobiology, Dec 11, 2014

Advertisements
Gallery

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s