03/2012
Molecular fossils are particularly valuable ancient biosignatures that can provide key insight about microbial sources and ecology in early Earth studies. In...
Exobiology
Exobiology
Report
01/2004
This thesis explores the microbial ecology of depositional environments in order to shed light on the 40‰ range of organic-carbon isotope compositions...
Biogeochemistry | Geochemistry
Biogeochemistry | Geochemistry
Dissertation
Thesis (Ph.D.)--Pennsylvania State University, 2004. Mode of access: World Wide Web.
Dissertation
01/2004, Volume 68, Issue 5
This thesis explores the microbial ecology of depositional environments in order to shed light on the 40{per mille} range of organic-carbon isotope...
Dissertation
2008, Space Sciences Series of ISSI, ISBN 9780387775159, Volume 25
The geological preservation of lipids from the cell membranes of organisms bestows a precious record of ancient life, especially for the Precambrian eon (>542...
Biochemistry, general | Planetology | Astrobiology | Physics | Astronomy
Biochemistry, general | Planetology | Astrobiology | Physics | Astronomy
Book Chapter
03/2014
The Sampl;e Analysis at Mars (sam) instrument suite on the Mars Science Laboratory (MSL) Curiosity Rover detected both reduced and oxidized nitrogen bearing...
Lunar and Planetary Science and Exploration
Lunar and Planetary Science and Exploration
Conference Proceeding
Journal of Geophysical Research: Planets, 10/2013, Volume 118, Issue 10
A single scoop of the Rocknest aeolian deposit was sieved (less than 150 micrometers), and four separate sample portions, each with a mass of approximately 50...
Lunar and Planetary Science and Exploration
Lunar and Planetary Science and Exploration
Journal Article
12/2013
Drilled samples of mudstone from the Sheepbed unit at Yellowknife Bay were analyzed by MSL instruments including the Sample Analysis at Mars (SAM) and...
Lunar and Planetary Science and Exploration
Lunar and Planetary Science and Exploration
Report
01/2004, Volume 68, Issue 5
This thesis explores the microbial ecology of depositional environments in order to shed light on the 40[per range of organic-carbon isotope compositions...
Book Chapter
12/2013
The Sample Analysis at Mars (SAM) instrument suite on the Mars Science Laboratory (MSL) Curiosity Rover detected both reduced and oxidized nitrogen-bearing...
Lunar and Planetary Science and Exploration
Lunar and Planetary Science and Exploration
Report
71.
Full Text
Climate Change in the Northwest : Implications for Our Landscapes, Waters, and Communities
12/2013, NCA Regional Input Reports, ISBN 1597264261, 271
Environmental aspects | Evaluation | Climatic changes | Northwest, Pacific | Climate Change Impacts | Environment | Climate Change | Marine & Freshwater Sciences | Climate Change Management and Policy | Energy consumption | Water treatment | Cooling | Water supply | National Climate Assessment | Environmental management | Future risk management | Mitigation | Climate change | Energy supply | Oil production | Renewable energy | Climate variability | Heating | Solar variability | Adaptation | Thermal electrics
eBook
06/2011
The environmental signatures for habitability are not necessarily biosignatures, even though on Earth, they are definitive proof of habitability. It is the...
Exobiology
Exobiology
Report
12/2013
Planetary models suggest that nitrogen was abundant in the early Martian atmosphere as N2 but it was lost by sputtering and photochemical loss to space, impact...
Lunar and Planetary Science and Exploration
Lunar and Planetary Science and Exploration
Report
01/2011
Spatiotemporal variability in the carbon isotope composition of sedimentary organic matter (OM) preserves information about the evolution of the biosphere and...
Geosciences (General)
Geosciences (General)
Report
08/2013
Four individual sample portions from a single scoop of the Rocknest aeolian deposit were sieved ( 150 m) and delivered to the Sample Analysis at Mars (SAM)...
Lunar and Planetary Science and Exploration
Lunar and Planetary Science and Exploration
Report
04/2012
The Sample Analysis at Mars (SAM) investigation of the Mars Science Laboratory(MSL) addresses the chemical and isotopic composition of the atmosphere and...
Lunar and Planetary Science and Exploration | Inorganic, Organic and Physical Chemistry
Lunar and Planetary Science and Exploration | Inorganic, Organic and Physical Chemistry
Report
01/2012
The Sample Analysis at Mars (SAM) investigation of the Mars Science Laboratory (MSL) addresses the chemical and isotopic composition of the atmosphere and...
Lunar and Planetary Science and Exploration
Lunar and Planetary Science and Exploration
Report
78.
Late Archean Biomarkers in Carbonates from the Hamersley Basin, Pilbara Craton, Western Australia
General Meeting of the NASA Astrobiology Insititute; 01 Apr. 2001, 04/2001, pp. 261 - 262
Little is known about the extent of microbial metabolic diversity in the Archean. Detection of indigenous molecular fossils and the assessment of the isotopic...
Conference Proceeding
Science, ISSN 0036-8075, 2014, Volume 343, Issue 6169, pp. 1245267 - 1245267
H2O, CO2, SO2, O-2, H-2, H2S, HCl, chlorinated hydrocarbons, NO, and other trace gases were evolved during pyrolysis of two mudstone samples acquired by the...
HYDROGEN | ANALOG | MARTIAN SOIL | MULTIDISCIPLINARY SCIENCES | DIOXIDE | SURFACE | PERCHLORATE | Exobiology | Carbon Dioxide - chemistry | Sulfides - analysis | Bays | Sulfides - chemistry | Water - analysis | Volatile Organic Compounds - analysis | Carbon Dioxide - analysis | Oxygen - analysis | Mars | Geologic Sediments - analysis | Hydrocarbons, Chlorinated - analysis | Oxygen - chemistry | Water - chemistry | Geologic Sediments - chemistry | Extraterrestrial Environment - chemistry | Rocks | Volatile organic compounds--VOCs | Space exploration | Sedimentary geology | Solar and Stellar Astrophysics | Earth and Planetary Astrophysics | Sciences of the Universe | Astrophysics | Atmospheric science | Engineering and Technology | Rymd- och flygteknik | Teknik och teknologier | Aerospace Engineering | Mechanical Engineering | Maskinteknik | Atmosfärsvetenskap
HYDROGEN | ANALOG | MARTIAN SOIL | MULTIDISCIPLINARY SCIENCES | DIOXIDE | SURFACE | PERCHLORATE | Exobiology | Carbon Dioxide - chemistry | Sulfides - analysis | Bays | Sulfides - chemistry | Water - analysis | Volatile Organic Compounds - analysis | Carbon Dioxide - analysis | Oxygen - analysis | Mars | Geologic Sediments - analysis | Hydrocarbons, Chlorinated - analysis | Oxygen - chemistry | Water - chemistry | Geologic Sediments - chemistry | Extraterrestrial Environment - chemistry | Rocks | Volatile organic compounds--VOCs | Space exploration | Sedimentary geology | Solar and Stellar Astrophysics | Earth and Planetary Astrophysics | Sciences of the Universe | Astrophysics | Atmospheric science | Engineering and Technology | Rymd- och flygteknik | Teknik och teknologier | Aerospace Engineering | Mechanical Engineering | Maskinteknik | Atmosfärsvetenskap
Journal Article
Science, ISSN 0036-8075, 7/2013, Volume 341, Issue 6143, pp. 263 - 266
Volume mixing and isotope ratios secured with repeated atmospheric measurements taken with the Sample Analysis at Mars instrument suite on the Curiosity rover...
Gas composition | Mars | Gases | Mass spectrometers | Meteorites | Atmospheric composition | Mixing ratios | Curiosity | REPORTS | Atmospherics | Isotopes | ORIGIN | MARS | MULTIDISCIPLINARY SCIENCES | NITROGEN | COMPONENTS | SHERGOTTITES | SNC METEORITES | HERSCHEL/HIFI OBSERVATIONS | CARBON-DIOXIDE | TRAPPED NOBLE-GASES | EETA-79001 | Composition | Research | Atmospheric chemistry | Atmosphere | Mars (Planet) | Atmospheric sciences | Chemical compounds | Spacecraft | Earth Sciences | Sciences of the Universe
Gas composition | Mars | Gases | Mass spectrometers | Meteorites | Atmospheric composition | Mixing ratios | Curiosity | REPORTS | Atmospherics | Isotopes | ORIGIN | MARS | MULTIDISCIPLINARY SCIENCES | NITROGEN | COMPONENTS | SHERGOTTITES | SNC METEORITES | HERSCHEL/HIFI OBSERVATIONS | CARBON-DIOXIDE | TRAPPED NOBLE-GASES | EETA-79001 | Composition | Research | Atmospheric chemistry | Atmosphere | Mars (Planet) | Atmospheric sciences | Chemical compounds | Spacecraft | Earth Sciences | Sciences of the Universe
Journal Article
No results were found for your search.
Cannot display more than 1000 results, please narrow the terms of your search.