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Atlantic Universities Geoscience Abstracts: 71st Annual Conference, November 6 and 7, 2021

2021 Atlantic geology  
geoscience topics that they cover.  ...  Such publication provides a permanent record of the abstracts, and also focuses attention on the excellent quality of the oral presentations and posters at the conference and the interesting and varied  ...  surface environmental footprint.  ... 
doi:10.4138/atlgeol.2021.014 fatcat:ildmlx23mfh2nmspyf2huzobfu

Identification and description of a silicic volcaniclastic layer in Gale crater, Mars using active neutron interrogation

S. Czarnecki, C. Hardgrove, P.J. Gasda, T.S.J. Gabriel, M. Starr, M. Rice, J. Frydenvang, R.C. Wiens, W. Rapin, S. Nikiforov, D. Lisov, M. Litvak (+5 others)
2020 Journal of Geophysical Research - Planets  
Abstract The Dynamic Albedo of Neutrons instrument aboard the Mars Science Laboratory rover, Curiosity, has been used to map a stratigraphically conformable layer of high-SiO 2 material in Gale crater.  ...  Plain Language Summary Using the Dynamic Albedo of Neutrons instrument aboard the Mars Science Laboratory rover, Curiosity, we mapped a silica-rich layer throughout a small region in Gale crater known  ...  Acknowledgments The authors are grateful to JPL for developing and operating the MSL Curiosity rover mission and to the Mars Science Laboratory team for facilitating the multinational collaboration involving  ... 
doi:10.1029/2019je006180 fatcat:jfqbibjytfb43drv57e3ltvvam

Reflectance spectroscopic mapping of diagenetic heterogeneities and fluid-flow pathways in the Jurassic Navajo Sandstone

Brenda Beitler Bowen, Brigette A. Martini, Marjorie A. Chan, William T. Parry
2007 American Association of Petroleum Geologists Bulletin  
The patterns observed can be used as predictive tools and applied to similar units in the subsurface.  ...  The surfaces analyzed include unobstructed exposures of variably altered Navajo Sandstone and mixed surfaces with partial sandstone cover, including non-Navajo Sandstone debris, eolium, lichen, soil, and  ... 
doi:10.1306/08220605175 fatcat:f5wby5cfdrgohktglspklq7dpu

Multi- and hyperspectral geologic remote sensing: A review

Freek D. van der Meer, Harald M.A. van der Werff, Frank J.A. van Ruitenbeek, Chris A. Hecker, Wim H. Bakker, Marleen F. Noomen, Mark van der Meijde, E. John M. Carranza, J. Boudewijn de Smeth, Tsehaie Woldai
2012 International Journal of Applied Earth Observation and Geoinformation  
surface mineral maps of clay minerals (kaolinite, illite), sulfate minerals (alunite), carbonate minerals (calcite, dolomite), iron oxides (hematite, goethite), and silica (quartz) which allowed to map  ...  The step toward quantitative and validated (subpixel) surface mineralogic mapping was made with the advent of high spectral resolution hyperspectral remote sensing.  ...  Mineral Resources Industry Using Remote Sensing (Freiberg, Germany, 2006), the Brazilian Remote Sensing Congress (Brazil, Natal, 2009), the ESA oil & gas workshop (Italy, Frascati, 2010), and the EARSeL  ... 
doi:10.1016/j.jag.2011.08.002 fatcat:2itf2iiiqfefriak3746ivtkxy

Aquistore: A fully integrated demonstration of the capture, transportation and geologic storage of CO2

Steve Whittaker, Kyle Worth
2011 Energy Procedia  
mineralogy and petrophysical characteristics.  ...  Baseline studies will be performed including seismic, shallow hydrology and other surface and near-surface surveys.  ...  requirements, site characterization using geological and hydrogeological maps and cross-sections, core analyses, drill-stem test data, water chemistry and reservoir mineralogy identified.  ... 
doi:10.1016/j.egypro.2011.02.550 fatcat:fntb7w5bbjgzpfyegm4grf7qpi

Borehole research in New York State can advance utilization of low-enthalpy geothermal energy, management of potential risks, and understanding of deep sedimentary and crystalline geologic systems

Teresa Jordan, Patrick Fulton, Jefferson Tester, David Bruhn, Hiroshi Asanuma, Ulrich Harms, Chaoyi Wang, Doug Schmitt, Philip J. Vardon, Hannes Hofmann, Tom Pasquini, Jared Smith (+1 others)
2020 Scientific Drilling  
Cornell encourages the Earth sciences community to envision how these boreholes can also be used to advance high-priority subsurface research questions.  ...  Subsurface samples could also enable regional geological studies and geobiology research. Following the workshop, the U.S.  ...  Core analyses refined (1,2,4) Mineralogy; geochemistry; geomechanical and thermo-poroelastic properties; thermal conductivity, diffusivity, and heat capacity; access porewater samples; natural gamma  ... 
doi:10.5194/sd-28-75-2020 fatcat:abeh255ncjdijcmmjloy4atn6i

Paleo-Rock-Hosted Life on Earth and the Search on Mars: A Review and Strategy for Exploration

T.C. Onstott, B.L. Ehlmann, H. Sapers, M. Coleman, M. Ivarsson, J.J. Marlow, A. Neubeck, P. Niles
2019 Astrobiology  
Using this strategy on Earth yields ancient rock-hosted life, preserved in the fossil record and confirmable via a suite of morphologic, organic, mineralogical, and isotopic fingerprints at micrometer  ...  Consequently, we outline a Mars exploration strategy that targets subsurface life and scales spatially, focusing initially on identifying rocks with evidence for groundwater flow and low-temperature mineralization  ...  Thanks to Mary Voytek and Michael Meyer at NASA Headquarters for workshop funding and to NASA Astrobiology Institute director Penny Boston and the NASA Ames Research Center meeting support team for providing  ... 
doi:10.1089/ast.2018.1960 pmid:31237436 pmcid:PMC6786346 fatcat:vzkmfl463rfnpd743jslmhs4zm

Ground penetrating radar modeling across Jezero crater floor

Sigurd Eide, Svein-Erik Hamran, Henning Dypvik, Hans E. F. Amundsen
2021 IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing  
In order to see how lithological properties and subsurface geometries affect radar sounding, a synthetic radargram is generated through forward modeling with a finite-difference time-domain method.  ...  Similarities and differences between Martian and terrestrial lithologies can be related to electromagnetic properties relevant for radar sounding.  ...  ACKNOWLEDGMENT The authors would like to thank Geocap AS for granting an academic license for their software Geocap Desktop used in this research.  ... 
doi:10.1109/jstars.2021.3055944 fatcat:4tpxpnj425c4tnncyyyyjtyyzy

Paleo-Rock-Hosted Life on Earth and the Search on Mars: a Review and Strategy for Exploration [article]

T.C. Onstott, B.L. Ehlmann, H. Sapers, M. Coleman, M. Ivarsson, J.J. Marlow, A. Neubeck, P. Niles
2018 arXiv   pre-print
at a time when Mars was habitable, whereas that of the latter occurred at a time when the martian surface would have been uninhabitable, subsurface biomass do not correlate with organic carbon and tends  ...  The lessons from Earth show that ancient rock hosted life is preserved in the fossil record and confirmable via a suite of morphologic, organic, mineralogical and isotopic fingerprints and microscopic  ...  via Grant NNA13AA94A issued through the NASA Science Mission Directorate and supported by the NASA Astrobiology Institute.  ... 
arXiv:1809.08266v1 fatcat:rkvejj6gljfhlc3fsz3ol3cecm

The Coevolution of Life and Environment on Mars: An Ecosystem Perspective on the Robotic Exploration of Biosignatures

Nathalie A. Cabrol
2018 Astrobiology  
and exploration.  ...  Earth's biological and environmental evolution are intertwined and inseparable. This coevolution has become a fundamental concept in astrobiology and is key to the search for life beyond our planet.  ...  ), cavities, mineral surfaces, and pore spaces (see Table 2 ).  ... 
doi:10.1089/ast.2017.1756 pmid:29252008 pmcid:PMC5779243 fatcat:kd6h3mt6g5ejhnlww3m4ujqklq

Geochemical variation in the Stimson formation of Gale crater: Provenance, mineral sorting, and a comparison with modern Martian dunes

C.C. Bedford, S.P. Schwenzer, J.C. Bridges, S. Banham, R.C. Wiens, O. Gasnault, E.B. Rampe, J. Frydenvang, P.J. Gasda
2020 Icarus (New York, N.Y. 1962)  
This study uses data from the Chemistry and Camera (ChemCam) and Chemistry and Mineralogy (CheMin) instrument suites onboard Curiosity to; (1) constrain the diagenetic processes that lithified and altered  ...  An opposite sediment transport direction between the ancient and modern dunes in Gale crater further supports geochemical and mineralogical evidence that suggests different basaltic source regions.  ...  Support for this work in the US is provided by the NASA Mars Exploration Program and in France by CNES.  ... 
doi:10.1016/j.icarus.2020.113622 fatcat:s4zhlc7tpncpjphkon5rikwf4m

The Effect of a Tropical Climate on Available Nutrient Resources to Springs in Ophiolite-Hosted, Deep Biosphere Ecosystems in the Philippines

D'Arcy R. Meyer-Dombard, Magdelena R. Osburn, Dawn Cardace, Carlo A. Arcilla
2019 Frontiers in Microbiology  
However, a true subsurface signature can be difficult to identify in surface expressions such as serpentinizing springs.  ...  Here, we explore carbon and nitrogen resources in serpentinization impacted springs in the tropical climate of the Zambales and Palawan ophiolites in the Philippines, with a focus on surface vs. subsurface  ...  AUTHOR CONTRIBUTIONS All authors contributed to the data collection and interpretation in this manuscript. FUNDING ACKNOWLEDGMENTS Dr.  ... 
doi:10.3389/fmicb.2019.00761 pmid:31118921 pmcid:PMC6504838 fatcat:fbpisjv33jdcnk75slj24x2pfq

Biosignature Preservation and Detection in Mars Analog Environments

Lindsay E. Hays, Heather V. Graham, David J. Des Marais, Elisabeth M. Hausrath, Briony Horgan, Thomas M. McCollom, M. Niki Parenteau, Sally L. Potter-McIntyre, Amy J. Williams, Kennda L. Lynch
2017 Astrobiology  
, Nathalie Cabrol, Wendy Calvin, Jack Farmer, Richard Leveille, and Anna-Louise Reysenbach for putting together the conference and for review of the manuscript.  ...  Acknowledgments The authors would like to acknowledge the meeting Conveners, Dave Beaty, Mary Voytek, and Michael Meyer, as well as additional members of the Scientific Organizing Committee, Abigail Allwood  ...  iron and sulfur redox gradients and mineral precipitation in subsurface aquifers, surface wetlands, and surface springs .  ... 
doi:10.1089/ast.2016.1627 pmid:28177270 pmcid:PMC5478115 fatcat:euicsnqjtbghhctz22ojsijzmu

Environmental conditions of E Iberia's Early Triassic: an Earth example for understanding the habitability of ancient Mars

Ana Belén Galán-Abellán, Jesús Martínez Frías
2018 Episodes  
and UCM-BSCH-GR58/08 Projects: Análisis de Cuencas (910429) and Paleoclimas (910198).  ...  The authors thank the National Aeronautics and Space Administration (NASA) the access to Mars Images, Drs. J. López-Gómez, J. Fernández-Barrenechea, P. Suarez-Gonzalez, A. Jiménez Díaz, and R.  ...  These studies have covered several fields like sedimentology, palaeontology, mineralogy and geochemistry.  ... 
doi:10.18814/epiiugs/2018/v41i1/018004 fatcat:7e75acsqcjajno6ekib5ef7gxm

The emergence of hydrogeophysics for improved understanding of subsurface processes over multiple scales

Andrew Binley, Susan S. Hubbard, Johan A. Huisman, André Revil, David A. Robinson, Kamini Singha, Lee D. Slater
2015 Water Resources Research  
These new hydrogeophysical approaches benefited from the emergence of practical and robust data inversion techniques, in many cases with a view to quantify shallow subsurface heterogeneity and the associated  ...  dynamics of subsurface fluids.  ...  Natural gamma surveys are proving particularly useful for mapping mineral soils [Cook et al., 1996] and even soil organic carbon (SOC).  ... 
doi:10.1002/2015wr017016 pmid:26900183 pmcid:PMC4744786 fatcat:fw3njrwu2feujcsfbm5eugm74i
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