Ooids on Mars: Activity of Putative Martian Microbes

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Ooids on Mars: Activity of Putative Martian Microbes

https://1drv.ms/b/s!Aswvw5Q8QFCgnBZfPOxlT7s3nqlO?e=bYzZAa

Lin Liangtai a*

DOI: 10.9734/bpi/ibs/v3/8581E

Peer-Review History:

This chapter was reviewed by following the Advanced Open Peer Review policy. This chapter was thoroughly checked to

prevent plagiarism. As per editorial policy, a minimum of two peer-reviewers reviewed the manuscript. After review and

revision of the manuscript, the Book Editor approved the manuscript for final publication. Peer review comments, comments

of the editor(s), etc. are available here: https://peerreviewarchive.com/review-history/8581E

ABSTRACT

The present study describes Martian ooids formed by Martian microbes. NASA’s

Mars Rover Curiosity discovered plentiful indigenous spherical ooids at High Dune

and Namib Dune in Bagnold dune field, Gale Crater, Mars. The spherical Martian

ooids contain nuclei and range from 0.1 mm to 0.5 mm in diameter. 

Colors of the spherical Martian ooids are various, including white, yellow

translucent, green, gray, and yellow. The spherical Martian ooids should have

been formed by microbes, because 1) ooids of Earth have recently been 

found to be formed by microbes and 2) microbial borings are found in ooids of

Earth and of Mars. There is no evidence that proves ooids are formed by agitated

water.

Keywords: Martian microbes; Martian ooids; past life on mars.

1. INTRODUCTION

An ooid often consists of a nucleus (a fragment of shell, a grain of sand, etc.)

around which complex material is deposited to form roughly spherical or oval

grains. Ooids are of interest given their prominence as major contributors 

to the global carbonate budget. NASA’s Mars Rover Curiosity visited 

Bagnold dune field in Gale Crater, Mars, to study sands there from December

2015 to February 2016 (from Sol 1182 to Sol 1260) (from Sol 1182 to Sol 1260) (See Fig. 1).

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