Abstract：
:Stromatolite structures in Early Archean carbonate deposits form an important clue for the existence of life in the earliest part of Earth's history. Since Mars is thought to have had similar environmental conditions early in its history, the question arises as to whether such stromatolite structures also evolved there. Here, we explore the capability of Raman spectroscopy to make semiquantitative estimates of solid solutions in the Ca-Mg-Fe(+Mn) carbonate system, and we assess its use as a rover-based technique for stromatolite characterization during future Mars missions. Raman microspectroscopy analysis was performed on a set of carbonate standards (calcite, ankerite, dolomite, siderite, and magnesite) of known composition. We show that Raman band shifts of siderite-magnesite and ankerite-dolomite solid solutions display a well-defined positive correlation (r(2) > 0.9) with the Mg# = 100 x Mg/(Mg + Fe + Mn + Ca) of the carbonate analyzed. Raman shifts calibrated as a function of Mg# were used in turn to evaluate the chemical composition of carbonates. Raman analysis of a suite of carbonates (siderite, sidero-magnesite, ankerite, and dolomite) of hydrothermal and sedimentary origin from the ca. 3.2 Ga old Barite Syncline, Barberton greenstone belt, South Africa, and from the ca. 3.5 Ga old Dresser Formation, Pilbara Craton, Western Australia, show good compositional agreement with electron microprobe analyses. These results indicate that Raman spectroscopy can provide direct information on the composition and structure of carbonates on planetary surfaces.
journal_name
Astrobiologyjournal_title
Astrobiologyauthors
Rividi N,van Zuilen M,Philippot P,Ménez B,Godard G,Poidatz Edoi
10.1089/ast.2009.0388subject
Has Abstractpub_date
2010-04-01 00:00:00pages
293-309issue
3eissn
1531-1074issn
1557-8070journal_volume
10pub_type
杂志文章相关文献
ASTROBIOLOGY文献大全abstract：:Water is the fundamental molecule for life on Earth. Thus, the search for hibernating life-forms in waterless environments is an important research topic for astrobiology. To date, however, the organizational patterns containing microbial life in extremely dry places, such as the deserts of Earth, the Dry Valleys of A...
journal_title：Astrobiology
pub_type： 杂志文章
doi：10.1089/ast.2014.1162
更新日期：2014-07-01 00:00:00
abstract：:The thermal springs Trollosen and Fisosen, located on the High Arctic archipelago Svalbard, discharge saline groundwaters rich in hydrogen sulfide and ammonium through a thick layer of permafrost. Large amounts of biomass that consist of filamentous microorganisms containing sulfur granules, as analyzed with energy di...
journal_title：Astrobiology
pub_type： 杂志文章
doi：10.1089/ast.2010.0551
更新日期：2011-09-01 00:00:00
abstract：:Recent measurements of methane (CH4) by the Mars Science Laboratory (MSL) now confront us with robust data that demand interpretation. Thus far, the MSL data have revealed a baseline level of CH4 (∼0.4 parts per billion by volume [ppbv]), with seasonal variations, as well as greatly enhanced spikes of CH4 with peak ab...
journal_title：Astrobiology
pub_type： 杂志文章,评审
doi：10.1089/ast.2018.1917
更新日期：2018-10-01 00:00:00
abstract：:Viability rates were determined for microbial populations of Escherichia coli and Deinococcus radiodurans under the environmental stresses of low temperature (-35 degrees C), low-pressure conditions (83.3 kPa), and ultraviolet (UV) irradiation (37 W/m(2)). During the stress tests the organisms were suspended in saltwa...
journal_title：Astrobiology
pub_type： 杂志文章
doi：10.1089/ast.2006.6.332
更新日期：2006-04-01 00:00:00
abstract：:Jökulhlaups are terrestrial catastrophic outfloods, often triggered by subglacial volcanic eruptions. Similar volcano-ice interactions were likely important on Mars where magma/lava may have interacted with the planet's cryosphere to produce catastrophic floods. As a potential analogue to sediments deposited during ma...
journal_title：Astrobiology
pub_type： 杂志文章
doi：10.1089/ast.2009.0425
更新日期：2010-06-01 00:00:00
abstract：:Fungi are not only present on Earth but colonize spacecraft and space stations as well. This review provides an extensive overview of the large and diverse group of fungal species that have been found in space, as well as those corresponding detection methods used and the existing and potential future prevention and c...
journal_title：Astrobiology
pub_type： 杂志文章,评审
doi：10.1089/ast.2018.1854
更新日期：2019-07-01 00:00:00
abstract：:Lunar dust toxicity has to be evaluated in view of future manned missions to the Moon. Previous studies on lunar specimens and simulated dusts have revealed an oxidant activity assigned to HO· release. However, the mechanisms behind the reactivity of lunar dust are still quite unclear at the molecular level. In the pr...
journal_title：Astrobiology
pub_type： 杂志文章
doi：10.1089/ast.2014.1216
更新日期：2015-05-01 00:00:00
abstract：:To the astrobiologist, Enceladus offers easy access to a potential subsurface biosphere via the intermediacy of a plume of water emerging directly into space. A direct question follows: If we were to collect a sample of this plume, what in that sample, through its presence or its absence, would suggest the presence an...
journal_title：Astrobiology
pub_type： 杂志文章
doi：10.1089/ast.2016.1611
更新日期：2017-09-01 00:00:00
abstract：:Organics are expected to exist on Mars based on meteorite infall, in situ production, and any possible biological sources. Yet they have not been detected on the martian surface; are they there, or are we not capable enough to detect them? The Viking gas chromatograph-mass spectrometer did not detect organics in the h...
journal_title：Astrobiology
pub_type： 杂志文章
doi：10.1089/ast.2010.0498
更新日期：2010-07-01 00:00:00
abstract：:Mars Odyssey has given strong evidence for the existence of water in the upper martian surface at equatorial latitudes. The water content, which corresponds to the hydrogen in the soil, can regionally reach values up to about 15%. This water is mainly in the form of structurally and partially irreversibly bound "cryst...
journal_title：Astrobiology
pub_type： 杂志文章
doi：10.1089/ast.2005.5.770
更新日期：2005-12-01 00:00:00
abstract：:The 1976 Viking Labeled Release (LR) experiment was positive for extant microbial life on the surface of Mars. Experiments on both Viking landers, 4000 miles apart, yielded similar, repeatable, positive responses. While the authors eventually concluded that the experiment detected martian life, this was and remains a ...
journal_title：Astrobiology
pub_type： 杂志文章
doi：10.1089/ast.2015.1464
更新日期：2016-10-01 00:00:00
abstract：:We review the in situ geochronology experiments conducted by the Mars Science Laboratory mission's Curiosity rover to understand when the Gale Crater rocks formed, underwent alteration, and became exposed to cosmogenic radiation. These experiments determined that the detrital minerals in the sedimentary rocks of Gale ...
journal_title：Astrobiology
pub_type： 杂志文章,评审
doi：10.1089/ast.2018.1871
更新日期：2019-11-01 00:00:00
abstract：:Raman spectroscopy can provide chemical information about organic and inorganic substances quickly and nondestructively with little to no sample preparation, thus making it an ideal instrument for Mars rover missions. The ESA ExoMars planetary mission scheduled for launch in 2018 will contain a miniaturized Raman spec...
journal_title：Astrobiology
pub_type： 杂志文章
doi：10.1089/ast.2015.1334
更新日期：2015-09-01 00:00:00
abstract：:We highlight the role of COSPAR and the scientific community in defining and updating the framework of planetary protection. Specifically, we focus on Mars "Special Regions," areas where strict planetary protection measures have to be applied before a spacecraft can explore them, given the existence of environmental c...
journal_title：Astrobiology
pub_type： 杂志文章
doi：10.1089/ast.2016.1472
更新日期：2016-02-01 00:00:00
abstract：:Nitrogen is the major component of Earth's atmosphere and plays important roles in biochemistry. Biological systems have evolved a variety of mechanisms for fixing and recycling environmental nitrogen sources, which links them tightly with terrestrial nitrogen reservoirs. However, prior to the emergence of biology, al...
journal_title：Astrobiology
pub_type： 杂志文章
doi：10.1089/ast.2017.1700
更新日期：2018-07-01 00:00:00
abstract：:The Hayabusa2 mission successfully collected samples from the asteroid Ryugu last year and will return these to Earth in December 2020. It is anticipated that the samples will enable the analysis of terrestrially uncontaminated organic matter and minerals. Such analyses are in turn expected to elucidate the evolution ...
journal_title：Astrobiology
pub_type： 杂志文章
doi：10.1089/ast.2019.2198
更新日期：2020-07-01 00:00:00
abstract：:We describe a continuous high-pressure flow reactor designed to simulate the unforced convective interaction of hydrothermal solutions and ocean waters with submarine crust on early Earth-conditions appropriate to those that may have led to the onset of life. The experimental operating conditions are appropriate for i...
journal_title：Astrobiology
pub_type： 杂志文章
doi：10.1089/ast.2009.0456
更新日期：2010-10-01 00:00:00
abstract：:We present a summary of the physical principles and design of the Dynamic Albedo of Neutrons (DAN) instrument onboard NASA's 2009 Mars Science Laboratory (MSL) mission. The DAN instrument will use the method of neutron-neutron activation analysis in a space application to study the abundance and depth distribution of ...
journal_title：Astrobiology
pub_type： 杂志文章
doi：10.1089/ast.2007.0157
更新日期：2008-06-01 00:00:00
abstract：:Planetary protection is governed by the Outer Space Treaty and includes the practice of protecting planetary bodies from contamination by Earth life. Although studies are constantly expanding our knowledge about life in extreme environments, it is still unclear what the probability is for terrestrial organisms to surv...
journal_title：Astrobiology
pub_type： 杂志文章
doi：10.1089/ast.2015.1417
更新日期：2017-03-01 00:00:00
abstract：:Two terrestrial environments that have been proposed as analogs for the iron oxide precipitation in the Meridiani Planum region of Mars include the Rio Tinto precipitates and southern Utah marble concretions. Samples of two typical Utah iron oxide concretions and iron oxide precipitates in contact with biofilms from R...
journal_title：Astrobiology
pub_type： 杂志文章
doi：10.1089/ast.2006.6.527
更新日期：2006-08-01 00:00:00
abstract：:This review of material relevant to the Conference on Biosignature Preservation and Detection in Mars Analog Environments summarizes the meeting materials and discussions and is further expanded upon by detailed references to the published literature. From this diverse source material, there is a detailed discussion o...
journal_title：Astrobiology
pub_type： 杂志文章,评审
doi：10.1089/ast.2016.1627
更新日期：2017-04-01 00:00:00
abstract：:Granitoids are silicic rocks that make up the majority of the continental crust, but different models arise for the origins of these rocks. One classification scheme defines different granitoid types on the basis of materials involved in the melting/crystallization process. In this end-member case, granitoids may be d...
journal_title：Astrobiology
pub_type： 杂志文章
doi：10.1089/ast.2014.1248
更新日期：2015-07-01 00:00:00
abstract：:Life-detection instruments on future Mars missions may use surfactant solutions to extract organic matter from samples of martian rocks. The thermal and radiation environments of space and Mars are capable of degrading these solutions, thereby reducing their ability to dissolve organic species. Successful extraction a...
journal_title：Astrobiology
pub_type： 杂志文章
doi：10.1089/ast.2013.1105
更新日期：2014-09-01 00:00:00
abstract：:Over the next two decades, NASA and ESA are planning a series of space-based observatories to find Earth-like planets and determine whether life exists on these planets. Previous studies have assessed the likelihood of detecting life through signs of biogenic gases in the atmosphere or a red edge. Biogenic gases and t...
journal_title：Astrobiology
pub_type： 杂志文章
doi：10.1089/ast.2010.0495
更新日期：2010-11-01 00:00:00
abstract：:Ultraviolet (UV) irradiation on the surface of Mars is an important factor that affects the survivability of microorganisms on Mars. The possibility of martian brines made from Fe2(SO4)3, MnSO4, and MgSO4 salts providing a habitable niche on Mars via attenuation of UV radiation was investigated on the bacteria Bacillu...
journal_title：Astrobiology
pub_type： 杂志文章
doi：10.1089/ast.2020.2285
更新日期：2020-11-25 00:00:00
abstract：:The primary objective of NASA's Mars Science Laboratory (MSL) mission, which will launch in 2011, is to characterize the habitability of a site on Mars through detailed analyses of the composition and geological context of surface materials. Within the framework of established mission goals, we have evaluated the valu...
journal_title：Astrobiology
pub_type： 杂志文章
doi：10.1089/ast.2010.0491
更新日期：2010-09-01 00:00:00
abstract：:Antibody microarrays are becoming frequently used tools for analytical purposes. A key factor for optimal performance is the stability of the immobilized (capturing) antibodies as well as those that have been fluorescently labeled to achieve the immunological test (tracers). This is especially critical for long-distan...
journal_title：Astrobiology
pub_type： 杂志文章
doi：10.1089/ast.2011.0647
更新日期：2011-10-01 00:00:00
abstract：:The objective of the 2009 Mars Science Laboratory (MSL), which is planned to follow the Mars Exploration Rovers and the Phoenix lander to the surface of Mars, is to explore and assess quantitatively a site on Mars as a potential habitat for present or past life. Specific goals include an assessment of the past or pres...
journal_title：Astrobiology
pub_type： 杂志文章
doi：10.1089/ast.2007.0160
更新日期：2008-06-01 00:00:00
abstract：:Understanding the impact of active M dwarf stars on the atmospheric equilibrium and surface conditions of a habitable zone Earth-like planet is key to assessing M dwarf planet habitability. Previous modeling of the impact of electromagnetic (EM) radiation and protons from a single large flare on an Earth-like atmosphe...
journal_title：Astrobiology
pub_type： 杂志文章
doi：10.1089/ast.2017.1794
更新日期：2019-01-01 00:00:00
abstract：:Abstract Technologies that enable rapid and efficient extraction of biomarker compounds from various solid matrices are a critical requirement for the successful implementation of in situ chemical analysis of the martian regolith. Here, we describe a portable subcritical water extractor that mimics multiple organic so...
journal_title：Astrobiology
pub_type： 杂志文章
doi：10.1089/ast.2007.0154
更新日期：2008-06-01 00:00:00
