Featured Research

from universities, journals, and other organizations

Groundwater Springs Played Important Role In Shaping Mars, Perhaps Sheltering Primitive Life

Date:
December 12, 2008
Source:
European Space Agency
Summary:
Data and images from Mars Express suggest that several Light Toned Deposits, some of the least understood features on Mars, were formed when large amounts of groundwater burst on to the surface. Scientists propose that groundwater had a greater role in shaping the martian surface than previously believed, and may have sheltered primitive life forms as the planet started drying up.

Iani Chaos on Mars, an area where Light Toned Deposits, or LTD, are known to be present. An analysis of data and images from Mars Express suggests that several LTD, some of the least understood structures on Mars, were formed when large amounts of groundwater burst on to the surface. Scientists propose that groundwater had a greater role in shaping the martian surface than previously believed, and may have sheltered primitive life forms as the planet started drying up. This image was obtained with the High Resolution Stereo Camera on board ESA's Mars Express spacecraft.
Credit: ESA/DLR/FU Berlin (G. Neukum)

Data and images from Mars Express suggest that several Light Toned Deposits, some of the least understood features on Mars, were formed when large amounts of groundwater burst on to the surface. Scientists propose that groundwater had a greater role in shaping the martian surface than previously believed, and may have sheltered primitive life forms as the planet started drying up.

Related Articles


Light Toned Deposits (LTDs) - martian sediments that most closely resemble sediments on Earth - are some of the most mysterious sediments on Mars. Causes for their origin remain unknown. Until now, different mechanisms, including volcanic processes, have been proposed for their formation.

LTDs were first discovered by the Viking spacecraft in the late 1970s and have since been at the centre of scientific debate. These deposits occur on a large scale in Arabia Terra, Chaotic Terrain and Valles Marineris, close to the Tharsis volcanic bulge.

Now, based on Mars Express data, scientists propose that these sediments are actually younger than originally believed. Rossi and colleagues report their findings in a paper published in September this year. They have proposed that several LTDs may have been deposited by large-scale springs of groundwater that burst on to the surface, possibly at different times.

Analysis indicates that ground water had a more wide-ranging and important role in martian history than previously believed. Hydrated minerals, relatively young in age, have been found in the region.

Given that the deposits are relatively young in age, and associated with water, they may also have sheltered microbial life from the drier and harsher climate in more recent times on Mars, possibly eliminating the need for a stable atmosphere or a permanent water body.


Story Source:

The above story is based on materials provided by European Space Agency. Note: Materials may be edited for content and length.


Journal Reference:

  1. Rossi et al. Large-scale spring deposits on Mars? Journal of Geophysical Research, 2008; 113 (e8): E08016 DOI: 10.1029/2007JE003062

Cite This Page:

European Space Agency. "Groundwater Springs Played Important Role In Shaping Mars, Perhaps Sheltering Primitive Life." ScienceDaily. ScienceDaily, 12 December 2008. <www.sciencedaily.com/releases/2008/12/081211112307.htm>.
European Space Agency. (2008, December 12). Groundwater Springs Played Important Role In Shaping Mars, Perhaps Sheltering Primitive Life. ScienceDaily. Retrieved March 4, 2015 from www.sciencedaily.com/releases/2008/12/081211112307.htm
European Space Agency. "Groundwater Springs Played Important Role In Shaping Mars, Perhaps Sheltering Primitive Life." ScienceDaily. www.sciencedaily.com/releases/2008/12/081211112307.htm (accessed March 4, 2015).

Share This


More From ScienceDaily



More Space & Time News

Wednesday, March 4, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Raw: SpaceX Launches Rocket, Satellites on Board

Raw: SpaceX Launches Rocket, Satellites on Board

AP (Mar. 2, 2015) — SpaceX launched it&apos;s 16th Falcon 9 rocket from Cape Canaveral, Florida on Sunday night. The rocket was carrying two commercial communications satellites. (March 2) Video provided by AP
Powered by NewsLook.com
NASA EDGE: SMAP Launch

NASA EDGE: SMAP Launch

NASA (Mar. 2, 2015) — Join NASA EDGE as they cover the launch of the Soil Moisture Active Passive (SMAP) spacecraft live from Vandenberg Air Force Base.  Special guests include NASA Administrator Charlie Bolden, SMAP Project System Engineer Shawn Goodman and Lt Col Brande Walton and Joseph Sims from the Air Force.  No word on the Co-Host&apos;s whereabouts. Video provided by NASA
Powered by NewsLook.com
Astronauts Leave Space Station for Third Spacewalk

Astronauts Leave Space Station for Third Spacewalk

Reuters - News Video Online (Mar. 1, 2015) — NASA Commander Barry Wilmore and Flight Engineer Terry Virts perform their third spacewalk in eight days outside the International Space Station. Rough Cut (no reporter narration). Video provided by Reuters
Powered by NewsLook.com
Spacesuit Water Leaks Not An Issue On Latest ISS Walk

Spacesuit Water Leaks Not An Issue On Latest ISS Walk

Newsy (Mar. 1, 2015) — Astronauts are ahead of schedule with hardware upgrades to the International Space Station, despite last week&apos;s spacesuit water leak scare. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:

Strange & Offbeat Stories

 

Space & Time

Matter & Energy

Computers & Math

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins