Jump to content




Welcome to Unexplained Mysteries! Please sign in or create an account to start posting and to access a host of extra features.


* * * * * 1 votes

Martian Crater May Once Have Held Lake

mars mars reconnaissance orbiter mro nasa

  • Please log in to reply
20 replies to this topic

#1    Waspie_Dwarf

Waspie_Dwarf

    Space Cadet

  • 32,169 posts
  • Joined:03 Mar 2006
  • Gender:Male
  • Location:Bexleyheath, Kent, UK

  • We are all in the gutter, but some of us are looking at the stars.

    Oscar Wilde

Posted 20 January 2013 - 06:23 PM

Martian Crater May Once Have Held Groundwater-Fed Lake



www.nasa.gov said:

Posted Image

This view of layered rocks on the floor of McLaughlin Crater shows sedimentary rocks that contain spectroscopic evidence for minerals formed through interaction with water. Image credit: NASA/JPL-Caltech/Univ. of Arizona   Full image and caption



PASADENA, Calif. -- A NASA spacecraft is providing new evidence of a wet underground environment on Mars that adds to an increasingly complex picture of the Red Planet's early evolution.

The new information comes from researchers analyzing spectrometer data from NASA's Mars Reconnaissance Orbiter, which looked down on the floor of McLaughlin Crater. The Martian crater is 57 miles (92 kilometers) in diameter and 1.4 miles (2.2 kilometers) deep. McLaughlin's depth apparently once allowed underground water, which otherwise would have stayed hidden, to flow into the crater's interior.

Layered, flat rocks at the bottom of the crater contain carbonate and clay minerals that form in the presence of water. McLaughlin lacks large inflow channels, and small channels originating within the crater wall end near a level that could have marked the surface of a lake.

Together, these new observations suggest the formation of the carbonates and clay in a groundwater-fed lake within the closed basin of the crater. Some researchers propose the crater interior catching the water and the underground zone contributing the water could have been wet environments and potential habitats. The findings are published in Sunday's online edition of Nature Geoscience.

"Taken together, the observations in McLaughlin Crater provide the best evidence for carbonate forming within a lake environment instead of being washed into a crater from outside," said Joseph Michalski, lead author of the paper, which has five co-authors. Michalski also is affiliated with the Planetary Science Institute in Tucson, Ariz., and London's Natural History Museum.

Michalski and his co-authors used the Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) on the Mars Reconnaissance Orbiter (MRO) to check for minerals such as carbonates, which are best preserved under non-acidic conditions.

"The MRO team has made a concerted effort to get highly processed data products out to members of the science community like Dr. Michalski for analysis," said CRISM Principal Investigator Scott Murchie of the Johns Hopkins University Applied Physics Laboratory in Laurel, Md. "New results like this show why that effort is so important."

Launched in 2005, the Mars Reconnaissance Orbiter and its six instruments have provided more high-resolution data about the Red Planet than all other Mars orbiters combined. Data are made available for scientists worldwide to research, analyze and report their findings.

"A number of studies using CRISM data have shown rocks exhumed from the subsurface by meteor impact were altered early in Martian history, most likely by hydrothermal fluids," Michalski said. "These fluids trapped in the subsurface could have periodically breached the surface in deep basins such as McLaughlin Crater, possibly carrying clues to subsurface habitability."

McLaughlin Crater sits at the low end of a regional slope several hundreds of miles, or kilometers, long on the western side of the Arabia Terra region of Mars. As on Earth, groundwater-fed lakes are expected to occur at low regional elevations. Therefore, this site would be a good candidate for such a process.

"This new report and others are continuing to reveal a more complex Mars than previously appreciated, with at least some areas more likely to reveal signs of ancient life than others," said Mars Reconnaissance Orbiter Project Scientist Rich Zurek of NASA's Jet Propulsion Laboratory, Pasadena, Calif.

The Johns Hopkins University Applied Physics Laboratory in Laurel, Md., provided and operates CRISM. JPL, a division of the California Institute of Technology in Pasadena, manages the Mars Reconnaissance Orbiter for NASA's Science Mission Directorate in Washington. Lockheed Martin Space Systems in Denver built the orbiter.

To see an image of the carbonate-bearing layers in McLaughlin Crater, visit: http://photojournal....atalog/PIA16710 .

For more about the Mars Reconnaissance Orbiter mission, visit: http://www.nasa.gov/mro



Guy Webster 818-354-6278
Jet Propulsion Laboratory, Pasadena, Calif.
guy.webster@jpl.nasa.gov

Alan Fischer 520-382-0411
Planetary Science Institute, Tucson, Ariz.
fischer@psi.edu

Dwayne Brown 202-358-1726
NASA Headquarters, Washington
dwayne.c.brown@nasa.gov

2013-028



Posted Image Source


"Space is big. Really big. You just won't believe how vastly, hugely, mind-boggingly big it is. I mean, you may think it's a long way down the street to the chemist, but that's just peanuts to space." - The Hitch-Hikers Guide to the Galaxy - Douglas Adams 1952 - 2001

Posted Image
Click on button

#2    DONTEATUS

DONTEATUS

    Forum Divinity

  • Member
  • 17,778 posts
  • Joined:15 Feb 2008
  • Gender:Male
  • Location:Planet TEXAS

Posted 20 January 2013 - 07:50 PM

That Looks like a lake to me ! Great photo Waspie !

This is a Work in Progress!

#3    Waspie_Dwarf

Waspie_Dwarf

    Space Cadet

  • 32,169 posts
  • Joined:03 Mar 2006
  • Gender:Male
  • Location:Bexleyheath, Kent, UK

  • We are all in the gutter, but some of us are looking at the stars.

    Oscar Wilde

Posted 20 January 2013 - 08:00 PM

View PostDONTEATUS, on 20 January 2013 - 07:50 PM, said:

That Looks like a lake to me ! Great photo Waspie !
Don't let the blue fool you those aren't the true colours. It's a false colour image to highlight different rock types. There is no water in that image and it is not a lake now. There hasn't been a lake there for millions of years.

"Space is big. Really big. You just won't believe how vastly, hugely, mind-boggingly big it is. I mean, you may think it's a long way down the street to the chemist, but that's just peanuts to space." - The Hitch-Hikers Guide to the Galaxy - Douglas Adams 1952 - 2001

Posted Image
Click on button

#4    pallidin

pallidin

    Telekinetic

  • Member
  • 7,298 posts
  • Joined:09 Dec 2004
  • Gender:Male
  • Location:Somewhere south of the North Pole

  • "When life gets you down... swim with a dolphin"

Posted 21 January 2013 - 03:22 PM

View PostWaspie_Dwarf, on 20 January 2013 - 08:00 PM, said:

Don't let the blue fool you those aren't the true colours. It's a false colour image to highlight different rock types. There is no water in that image and it is not a lake now. There hasn't been a lake there for millions of years.

BS. I can see a whale and 3 dolphins.  :passifier:


#5    AsteroidX

AsteroidX

    Government Agent

  • Member
  • 3,570 posts
  • Joined:16 Dec 2012
  • Gender:Male
  • Location:Free America

  • it is their right, it is their duty, to throw off such Government, and to provide new Guards for their future security

Posted 21 January 2013 - 03:38 PM

I want to buy the island. If its volcanically stable that is.


#6    pallidin

pallidin

    Telekinetic

  • Member
  • 7,298 posts
  • Joined:09 Dec 2004
  • Gender:Male
  • Location:Somewhere south of the North Pole

  • "When life gets you down... swim with a dolphin"

Posted 21 January 2013 - 03:50 PM

lol


#7    paperdyer

paperdyer

    Paranormal Investigator

  • Member
  • PipPipPipPipPipPip
  • 783 posts
  • Joined:04 May 2012
  • Gender:Male
  • Location:North Carolina

  • "The place where optimism flourishes the most is the insane asylum."

Posted 21 January 2013 - 05:29 PM

If the colors on the picture in the article are accurate, the probe looks like it's in the red clay region of North Carolina :>)


#8    Lava_Lady

Lava_Lady

    Official UM Asylum Resident

  • Member
  • PipPipPipPipPipPipPipPip
  • 1,832 posts
  • Joined:20 Nov 2010
  • Gender:Female
  • Location:Hawai'i

  • Wha? /:0\

Posted 21 January 2013 - 07:35 PM

Ooooh!  This is getting good!!  Good Job, NASA!  Hehehe... :alien:

"The test of a first-rate intelligence is the ability to hold two opposed ideas in the mind at the same time, and still retain the ability to function."  - F. Scott Fitzgerald


#9    DONTEATUS

DONTEATUS

    Forum Divinity

  • Member
  • 17,778 posts
  • Joined:15 Feb 2008
  • Gender:Male
  • Location:Planet TEXAS

Posted 21 January 2013 - 07:54 PM

I know the photo is in false color I was talking about the rings looking like a receeding water line ,beach like effect. I can really imagine that planet with water in that place like here on earth. Only a million years or so ago . Great photo Waspie.

This is a Work in Progress!

#10    pallidin

pallidin

    Telekinetic

  • Member
  • 7,298 posts
  • Joined:09 Dec 2004
  • Gender:Male
  • Location:Somewhere south of the North Pole

  • "When life gets you down... swim with a dolphin"

Posted 21 January 2013 - 10:09 PM

Yes I agree. Very nice pic!


#11    Lava_Lady

Lava_Lady

    Official UM Asylum Resident

  • Member
  • PipPipPipPipPipPipPipPip
  • 1,832 posts
  • Joined:20 Nov 2010
  • Gender:Female
  • Location:Hawai'i

  • Wha? /:0\

Posted 22 January 2013 - 12:07 AM

Can you imagine what would happen if signs of life were found on Mars?  Omg... We would lose our minds..arguing, debunking, arguing, speculating, arguing....

I'm excited just thinking there's signs of water!!

"The test of a first-rate intelligence is the ability to hold two opposed ideas in the mind at the same time, and still retain the ability to function."  - F. Scott Fitzgerald


#12    Drayno

Drayno

    Draynor's Finest

  • Member
  • 3,704 posts
  • Joined:18 Jan 2008
  • Gender:Male

Posted 22 January 2013 - 07:25 AM

Even if there isn't life there now, this is certainly an exciting time to be alive.

Who knows what we'll know about Mars 50 years from now?

"Let us sit upon the ground and tell sad stories of the death of kings."
- William Shakespeare, Richard II, Act III, Scene II

#13    Abramelin

Abramelin

    -

  • Member
  • 18,110 posts
  • Joined:07 May 2005
  • Gender:Male
  • Location:"Here the tide is ruled, by the wind, the moon and us."

  • God created the world, but the Dutch created the Netherlands

Posted 22 January 2013 - 07:59 AM

View PostWaspie_Dwarf, on 20 January 2013 - 08:00 PM, said:

Don't let the blue fool you those aren't the true colours. It's a false colour image to highlight different rock types. There is no water in that image and it is not a lake now. There hasn't been a lake there for millions of years.

I'd like to know how they can be so sure there wasn't any lake for millions of years. Would they know if it was 'only' 100,000 years ago?


#14    Zeta Reticulum

Zeta Reticulum

    Apparition

  • Member
  • PipPip
  • 353 posts
  • Joined:15 Jun 2012
  • Gender:Not Selected

Posted 22 January 2013 - 09:02 AM

View PostLava_Lady, on 22 January 2013 - 12:07 AM, said:

Can you imagine what would happen if signs of life were found on Mars?  Omg... We would lose our minds..arguing, debunking, arguing, speculating, arguing....

Yes thats right..... we would all go absolutely mad,  a presidential address, religious leaders esposing many ideas and mantras, debunkers, the world would go nuts. Thats why we will never be told.


#15    Abramelin

Abramelin

    -

  • Member
  • 18,110 posts
  • Joined:07 May 2005
  • Gender:Male
  • Location:"Here the tide is ruled, by the wind, the moon and us."

  • God created the world, but the Dutch created the Netherlands

Posted 22 January 2013 - 09:41 AM

View PostZeta Reticulum, on 22 January 2013 - 09:02 AM, said:

Yes thats right..... we would all go absolutely mad,  a presidential address, religious leaders esposing many ideas and mantras, debunkers, the world would go nuts. Thats why we will never be told.

I think that's ridiculous. After a while emotions will settle down, and it will become a simple accepted fact.






Also tagged with mars, mars reconnaissance orbiter, mro, nasa

0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users