IPB
X   Site Message
(Message will auto close in 2 seconds)

Welcome Guest ( Log In | Register )

 
 Reply to this topicStart new topic
Desert varnish: an environmental recorder for Mars
Guest_AlexBlackwell_*
post Jul 26 2006, 12:05 AM
Post #1





Guests
From the August 2006 issue of Astronomy & Geophysics:

Desert varnish: an environmental recorder for Mars
Randall S. Perry and Mark A. Sephton
Astronomy & Geophysics 47, 4.34-4.35 (2006)
doi: 10.1111/j.1468-4004.2006.47434.x
Abstract

See also an earlier, related paper and press release:

Baking black opal in the desert sun: The importance of silica in desert varnish
Randall S. Perry et al.
Geology 34, 537–540 (2006)
Abstract

EurekAlert Release
Was there life on Mars? Shiny rock coating may hold the answer
Go to the top of the page
 
+Quote Post
Bill Harris
post Jul 26 2006, 01:51 AM
Post #2


Senior Member
****

Group: Members
Posts: 3009
Joined: 30-October 04
Member No.: 105
That makes me feel a bit more comfortable about using the term "desert varnish" around Mars. The conventional wisdom has been that it was managnese and organics mediated by bacterial processes (not that I'm against finding life on Mars, but there are certain items that can be 'buzz words' around certain types ). If the coating can be explained by the simplest non-bio process it widens the envelope.


--Bill


--------------------
Dawn-- Ceres
Pluto Encounter
Rosetta Mission
Go to the top of the page
 
+Quote Post
« Next Oldest · Mars · Next Newest »
 

Reply to this topicStart new topic

 

Display Mode: Standard · Switch to: Linear+ · Switch to: Outline

Track this topic · Email this topic · Print this topic · Subscribe to this forum

RSS Lo-Fi Version Time is now: 25th October 2024 - 11:53 PM
Powered By IP.Board © 2024  IPS, Inc.
RULES AND GUIDELINES
Please read the Forum Rules and Guidelines before posting.

IMAGE COPYRIGHT
Images posted on UnmannedSpaceflight.com may be copyrighted. Do not reproduce without permission. Read here for further information on space images and copyright.

 OPINIONS AND MODERATION
Opinions expressed on UnmannedSpaceflight.com are those of the individual posters and do not necessarily reflect the opinions of UnmannedSpaceflight.com or The Planetary Society. The all-volunteer UnmannedSpaceflight.com moderation team is wholly independent of The Planetary Society. The Planetary Society has no influence over decisions made by the UnmannedSpaceflight.com moderators.		 SUPPORT THE FORUM
Unmannedspaceflight.com is funded by the Planetary Society. Please consider supporting our work and many other projects by donating to the Society or becoming a member.