Interesting new release about a Earth source of ancient confined water found 2.4 kilometers deep, bound in 2.7 billion year old crystalline rocks and believed not circulating to or from the surface for 1.5 billion years and longer. The water is rich in dissolved volatiles, minerals, and other chemistry supportive of life. Gases, helium, neon, argon, xenon, are present in large amounts, with hydrogen and methane.
The search for ancient confined life of this age is not performed as yet by explanation. Comparison is made to the much younger South African mine water which was found to be deep, ancient, and confined, with living microbes confined in the water in a prior discovery a couple years past. A method of drawing this water with volatiles to the surface gives a rare view of the possibilities for subsurface water sources which could sustain and support life. The opportunity to search for ancient life in separation from surface sunlight and heat sources gives a Earth based perspective on the search for Martian volatiles, water, and life sustaining chemistry.
'The paper - Deep fracture fluids isolated in the crust since the Precambrian era by G. Holland, B. Sherwood Lollar, L. Li, G. Lacrampe-Couloume, G. F. Slater and C. J. Ballentine, in Nature - will be published online on 16 May 2013', from the link at Marsdaily.com on May 20, 2013
Apparent explosive integration of permafrost, volcanics, and Northern Lowlands fill flow materials has produced in the topic areas of Chryse to Meridiani land-form types of pit series cratering, channels, steep pinnacles, pitted cones, pitted domes, and near vertical walled raised rim craters. Occasional waterfall scarps show scoured floors of flood passages. These details have been published in this blog over the past eight years in HiRISE closeup sub-images. All those images can be found in prior topics presented.
The search for ancient water on Mars will be successful, either as ice or converted mineral deposits, allowing a view into Mars past. While surface ice layers tell a story, the confined early water of Mars will tell a completely different set of details.