Corporate Banner
Satellite Banner
Environmental Analysis
Scientific Community
 
Become a Member | Sign in
Home>News>This Article
  News
Return

Meteorite Studies Suggest Hidden Water on Mars

Published: Saturday, April 26, 2014
Last Updated: Saturday, April 26, 2014
Bookmark and Share
Latest studies suggest that there is more water present on Mars now than has so far been observed.

Geochemical calculations by researchers at Tokyo Institute of Technology to determine how the water content of Mars has changed over the past 4.5 billion years suggest as yet unidentified reservoirs of water on the planet.

A warmer more watery primordial Martian landscape more closely resembling Earth has long been suggested from geochemical and geological observations. However, as Hiroyuki Kurakawa and colleagues in Japan point out in their recent report “the timing, processes, and the amount of the water loss have been poorly constrained.”

Their latest studies using geochemical meteorite data to understand how the volume of water has changed on Mars over its history suggest there is more water present there now than has so far been observed.

Today Martian water is considered to exist chiefly as ice at the poles of the planet. However geological observations of rocks containing water laid sediments suggest that lakes and oceans once existed. Previous studies have focused on the volumes of lake-like geological structures to extrapolate how much water was previously present on Mars.

In contrast the researchers at Tokyo Institute of Technology and colleagues at Nagoya University and Kyushu University in Japan determined the water quantities over the course of the planet’s history from ratios of the isotopes deuterium and hydrogen (D/H) in ancient meteorites.

Deuterium and hydrogen exist in water at a standard ratio at equilibrium. However hydrogen is lighter and escapes more readily so that the changes in the D/H ratio over the course of time can be used to determine how much water has been lost.

They compared their results with previous geological estimates of the primordial water volume and found discrepancies in the figures that suggest the existence of as yet unidentified reservoirs of water on Mars at present.

They hypothesize that these may be in the form of mid-latitude ice mantles or underground reservoirs.

As hydrogen from water molecules escape oxygen is left behind. These latest results also suggest greater quantities of this oxygen than current models account for.


Further Information
Access to this exclusive content is for Technology Networks Premium members only.

Join Technology Networks Premium for free access to:

  • Exclusive articles
  • Presentations from international conferences
  • Over 2,500+ scientific posters on ePosters
  • More than 3,700+ scientific videos on LabTube
  • 35 community eNewsletters


Sign In



Forgotten your details? Click Here
If you are not a member you can join here

*Please note: By logging into TechnologyNetworks.com you agree to accept the use of cookies. To find out more about the cookies we use and how to delete them, see our privacy policy.


Scientific News
Determination of Phosphate in Soil Extracts in the Field: A Green Chemistry Enzymatic Method
New method for phosphate determination which can be carried out in the field to obtain results on the spot.
Open-Source Photometric System for Enzymatic Nitrate Quantification
New method proposed for developing a cheaper, more accessible open-source water testing platform capable of performing Nitrate Reductase Nitrate-Nitrogen Analysis.
Toxic Algae is a Threat to Our Water
A report concludes that blooms of toxic cyanobacteria, or blue-green algae, are a poorly monitored and underappreciated risk to recreational and drinking water quality in the U.S., and may increasingly pose a global health threat.
Significant Part of Greenhouse Gas Emissions Comes From River and Sea Organisms
Running streams are key sources of the greenhouse gas carbon dioxide, but why is it so?
Better Estimates of Worldwide Mercury Pollution
New findings show Asia produces twice as much mercury emissions as previously thought.
Real-Time Data for Cancer Therapy
Biochemical sensor implanted at initial biopsy could allow doctors to better monitor and adjust cancer treatments.
New Biosensors for Managing Microbial ‘Workers’
Researchers at Harvard’s Wyss Institute have unveiled new biosensors that enable scientists to more effectively control and 'communicate with' engineered bacteria.
Playing 'Tag' with Pollution lets Scientists See Who's It
Using a climate model that can tag sources of soot from different global regions and can track where it lands on the Tibetan Plateau, researchers have determined which areas around the plateau contribute the most soot — and where.
Pesticide Found in 70 Percent of Massachusetts’ Honey Samples
New Harvard University study says that the pesticide commonly found in honey samples is implicated in Colony Collapse Disorder.
Ocean Acidfication may have a Dramatic Affect on Marine Life
Study finds many species may die out and others may migrate significantly as ocean acidification intensifies.
Scroll Up
Scroll Down
SELECTBIO

Skyscraper Banner
Go to LabTube
Go to eposters
 
Access to the latest scientific news
Exclusive articles
Upload and share your posters on ePosters
Latest presentations and webinars
View a library of 1,800+ scientific and medical posters
2,500+ scientific and medical posters
A library of 2,500+ scientific videos on LabTube
3,700+ scientific videos
Close
Premium CrownJOIN TECHNOLOGY NETWORKS PREMIUM FREE!