Mars Water Debate Still Rages

[alexblackwell]

From the July 2004 issue of <i>Earth, Planets and Space</i>:<br /><br /><b>The volcanism-related multistage hydrothermal system of El Jaroso (SE Spain): Implications for the exploration of Mars </b><br />J. Martinez-Frías, R. Lunar, J. A. Rodríguez-Losada, A. Delgado, and F. Rull <br /><i>Earth Planets Space</i>, Vol. 56 (No. 7), pp. v-viii, 2004<br />Abstract

 

[exoscientist]

I agree the evidence is buried, but it is a question of how deeply. <br /> My opinion is that evidence would have been provided at Bonneville if it had been examined up close.<br /><br /><br /> Bob Clark <div class="Discussion_UserSignature"> </div>

 

[alexblackwell]

From July-August 2004 issue of <i>Solar System Research</i>:<br /><br /><b>Soil Water Content on Mars as Estimated from Neutron Measurements by the HEND Instrument Onboard the 2001 Mars Odyssey Spacecraft</b><br />I. G. Mitrofanov, M. L. Litvak, A. S. Kozyrev, A. B. Sanin, V. I. Tret'yakov, V. Yu. Grin'kov, W. V. Boynton, C. Shinohara, D. Hamara, R. S. Saunders <br /><i>Solar Sys. Res</i>. <b>38</b>, 253-257, (2004)<br />Abstract

 

[alexblackwell]

<i>From the July 2004 issue of Earth, Planets and Space: <br /><br /><b>The volcanism-related multistage hydrothermal system of El Jaroso (SE Spain): Implications for the exploration of Mars</b><br />J. Martinez-Frías, R. Lunar, J. A. Rodríguez-Losada, A. Delgado, and F. Rull <br />Earth Planets Space, Vol. 56 (No. 7), pp. v-viii, 2004</i><br /><br />1.56 Mb PDF reprint

 

[alexblackwell]

Published online today in <i>JGR-Planets</i>:<br /><br />Christensen, Philip R.; Ruff, Steven W.<br /><b>Formation of the hematite-bearing unit in Meridiani Planum: Evidence for deposition in standing water</b><br />J. Geophys. Res., Vol. 109, No. E8, E08003<br />10.1029/2003JE002233<br />17 August 2004<br />Abstract

 

[alexblackwell]

Abstracts from two upcoming LPI-sponsored conferences are now available:<br /><br />Workshop on Hemispheres Apart: The Origin and Modification of the Martian Crustal Dichotomy<br />September 30–October 1, 2004, Houston, Texas<br /><br />Second Conference on Early Mars: Geologic, Hydrologic and Climatic Evolution and the Implications for Life<br />October 11–15, 2004, Jackson Hole, Wyoming

 

[alexblackwell]

Published recently in <i>Geophysical Research Letters</i>:<br /><br />Feldman, W. C.; Mellon, M. T.; Maurice, S.; Prettyman, T. H.; Carey, J. W.; Vaniman, D. T.; Bish, D. L.; Fialips, C. I.; Chipera, S. J.; Kargel, J. S.; Elphic, R. C.; Funsten, H. O.; Lawrence, D. J.; Tokar, R. L.<br /><b>Hydrated states of MgSO4 at equatorial latitudes on Mars</b><br /><i>Geophys. Res. Lett</i>., Vol. 31, No. 16, L16702<br />10.1029/2004GL020181<br />24 August 2004<br />Abstract<br />

 

[alexblackwell]

Published online today in <i>JGR-Planets</i>:<br /><br />Grant, John A.; Maxwell, Ted A.; Johnston, Andrew K.; Kilani, Ali; Williams, Kevin K.<br /><b>Documenting drainage evolution in Bir Kiseiba, southern Egypt: Constraints from ground-penetrating radar and implications for Mars</b><br /><i>J. Geophys. Res</i>., Vol. 109, No. E9, E09002<br />10.1029/2003JE002232<br />01 September 2004<br />Abstract

 

[alexblackwell]

36th Annual DPS Meeting<br />Division for Planetary Sciences of the American Astronomical Society <br />November 8-12, 2004<br />Louisville, KY

 

[alexblackwell]

2004 American Geophysical Union Fall Meeting<br />December 13-17, 2004<br />San Francisco, CA

 

[alexblackwell]

7th Mars Crater Consortium<br />October 7-8, 2004<br />US Geological Survey in Flagstaff.<br />Contact: Nadine Barlow.<br />ABSTRACT DEADLINE: OCTOBER 1, 2004

 

[alexblackwell]

International Mars Conference<br />September 19-23, 2004<br />Ischia, Italy<br /><br />3rd Announcement

 

[alexblackwell]

There's a new preprint available in <i>JGR Planets in Press</i>:<br /><br />Wilson, Sharon A. and Zimbelman, James R. — August 2004<br /><b>The latitude-dependent nature and physical characteristics of transverse aeolian ridges on Mars</b><br />(2004JE002247)<br />PDF [10 MB]<br /><br />Note: I believe <i>JGR Planets in Press</i> is available to non-subscribers, though the preprint will eventually be taken down once the final version is actually published.

 

[alexblackwell]

From the September 9, 2004 issue of <i>Nature</i>:<br /><br /><b>Implications for hydrologic processes on Mars from extensive bedrock outcrops throughout Terra Meridiani</b><br />Brian M. Hynek<br /><i>Nature</i> <b>431</b>, 156-159 (2004)<br />doi:10.1038/nature02902 <br />First paragraph<br /><br />Mars may have had large sea near NASA rover landing site, says Colorado U. Study<br />University of Colorado at Boulder News Release<br />September 7, 2004

 

[voyagerwsh]

Thanks for the links, AlexBlackwell.<br /><br />If large body of liquid water had existed for extensive period of time under probable warmer Martian climate as well as thicker atmosphere, it might provide suitable environment for genesis of indigenous life. Also, the long existing surface/near liquid water might incubate the evolution of martian microbes in certain progresses.<br /><br />http://www.astrobio.net/news/modules.php?op=modload&name=News&file=article&sid=1184&mode=thread&order=0&thold=0

 

[rlb2]

<font color="yellow">"Brian Hynek of the University of Colorado at Boulder thinks the broad distribution of similar rock outcrops -- though they have not been studied up close -- adds up to an expanse of water about the size of the Baltic Sea.<br /><br />The lake or sea probably covered about 127,000 square miles (330,000 square kilometers), Hynek said today. The study is detailed in the Sept. 9 issue of the journal Nature.<br /><br />If the outcrops are a result of sea deposition, the amount of water once present must have been comparable to the Baltic Sea or all of the Great Lakes combined," Hynek said, speculating also that future studies may show that the ancient sea was even larger. He also speculates that the water may have been deep and long lasting, allowing sediments to build up to a depth of a third of a mile."<font color="white"><br /><br />http://space.com/scienceastronomy/mars_lake_040908.html<br /><br />Baby steps - baby steps <br /><br />"Whats next the F word?"<br /></font></font> <div class="Discussion_UserSignature"> Ron Bennett </div>

 

[alexblackwell]

Published online today in <i>JGR-Planets</i>:<br /><br />Wilson, Lionel; Ghatan, G.J.; Head, James W., III; Mitchell, Karl L.<br /><b>Mars outflow channels: A reappraisal of the estimation of water flow velocities from water depths, regional slopes, and channel floor properties</b><br /><i>J. Geophys. Res</i>., Vol. 109, No. E9, E09003<br />10.1029/2004JE002281<br />10 September 2004<br />Abstract

 

[alexblackwell]

Mars: The Story of Water at Meridiani Planum Grows -- Is Opportunity Roving on Ancient Ocean Bed?<br />By A.J.S. Rayl<br />The Planetary Society<br />September 10, 2004

 

[alexblackwell]

Published online today in <i>JGR-Planets</i>:<br /><br />Arkani-Hamed, Jafar<br /><b>A coherent model of the crustal magnetic field of Mars</b><br /><i>J. Geophys. Res</i>., Vol. 109, No. E9, E09005<br />10.1029/2004JE002265<br />15 September 2004<br />Abstract

 

[alexblackwell]

<i>Wilson, Lionel; Ghatan, G.J.; Head, James W., III; Mitchell, Karl L. <br /><b>Mars outflow channels: A reappraisal of the estimation of water flow velocities from water depths, regional slopes, and channel floor properties</b><br />J. Geophys. Res., Vol. 109, No. E9, E09003 <br />10.1029/2004JE002281 <br />10 September 2004 <br />Abstract</i><br /><br />~226 Kb PDF reprint

 

[alexblackwell]

There's a new preprint available in JGR-Planets in Press, which, I believe, is open to non-subscribers:<br /><br />Stepinski, Tomasz and Collier, Martin — September 2004<br /><b>Extraction of Martian Valley Networks from Digital Topography</b><br />(2004JE002269)<br />PDF [810 KB]

 

[alexblackwell]

<i>Thanks for the link regarding Stepinski and Collier. It is nice to read what the press release is about.</i><br /><br />While the Stepinski and Collier paper in press with <i>JGR-Planets</i>, the preprint of which I linked to above, is related, the Discovery Channel News release you linked to actually refers to another paper, by Stepinski and Coradetti, which was published online on August 4, 2004 in <i>Geophysical Research Letters</i>. And, if I'm not mistaken, I posted a notice of the latter in this thread back on August 3, 2004.

 

[alexblackwell]

From the October 2004 issue of <i>Icarus</i>:<br /><br />Seasonal melting of surface water ice condensing in martian gullies<br />Konrad J. Kossacki and Wojciech J. Markiewicz<br /><i>Icarus</i> <b>171</b>, 272-283, (2004)<br />Abstract

 

[alexblackwell]

Published online today in <i>JGR-Planets</i>:<br /><br />Potts, Laramie V.; von Frese, Ralph R.; Leftwich, Timothy E.; Taylor, Patrick T.; Shum, C. K.; Li, Rongxing<br /><b>Gravity-inferred crustal attributes of visible and buried impact basins on Mars</b><br /><i>J. Geophys. Res</i>., Vol. 109, No. E9, E09009<br />10.1029/2003JE002225<br />22 September 2004<br />Abstract<br /><br />Redmond, Hannah L.; King, Scott D.<br /><b>A numerical study of a mantle plume beneath the Tharsis Rise: Reconciling dynamic uplift and lithospheric support models</b><br /><i>J. Geophys. Res</i>., Vol. 109, No. E9, E09008<br />10.1029/2003JE002228<br />22 September 2004<br />Abstract<br /><br />Feldman, W. C.; Prettyman, T. H.; Maurice, S.; Plaut, J. J.; Bish, D. L.; Vaniman, D. T.; Mellon, M. T.; Metzger, A. E.; Squyres, S. W.; Karunatillake, S.; Boynton, W. V.; Elphic, R. C.; Funsten, H. O.; Lawrence, D. J.; Tokar, R. L.<br /><b>Global distribution of near-surface hydrogen on Mars</b><br /><i>J. Geophys. Res</i>., Vol. 109, No. E9, E09006<br />10.1029/2003JE002160<br />22 September 2004<br />Abstract

 

[alexblackwell]

From the September 23, 2004 issue of <i>Nature</i>: "Acid drops in the martian ocean."<br /><br />See also<br />A picture of young Mars<br />Mars, Once Warm and Wet, Left Some Clues