Justin Lawrence

Justin Lawrence
Georgia Institute of Technology | GT · School of Earth and Atmospheric Sciences

BSc

About

24
Publications
2,618
Reads
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163
Citations
Additional affiliations
August 2016 - present
Georgia Institute of Technology
Position
  • PhD Student
Description
  • Planetary science & astrobiology
June 2016 - August 2016
NASA
Position
  • Team Lead
Description
  • The NASA DEVELOP National Program fosters an interdisciplinary research environment where applied science research projects are conducted under the guidance of NASA and partner science advisors.
August 2015 - present
Georgia Institute of Technology
Position
  • Research Assistant
Description
  • The Sub-Ice Marine and Planetary-analog Ecosystems (SIMPLE) grant, under PI Dr. Britney Schmidt, is a NASA ASTEP project funded to conduct an in-depth study of the McMurdo Ice Shelf as a proxy for future exploration of Europa.
Education
September 2009 - May 2013
Boston College, USA
Field of study
  • Environmental Geoscience, Biology

Publications

Publications (24)
Article
We present thermophysical, biological, and chemical observations of ice and brine samples from five compositionally diverse hypersaline lakes in British Columbia's interior plateau. Possessing a spectrum of magnesium, sodium, sulfate, carbonate, and chloride salts, these low-temperature high-salinity lakes are analogs for planetary ice-brine enviro...
Preprint
Full-text available
Ozone is a highly oxidizing gas easily generated from atmospheric oxygen with inexpensive equipment and is commonly used for the disinfection of municipal water, foods, and surfaces. We report tests of the ability of ozone to inactivate enveloped respiratory viruses (influenza A virus and respiratory syncytial virus), chosen as more easily handled...
Article
The ARTEMIS docking system demonstrates autonomous docking capability applicable to robotic exploration of sub-ice oceans and sub-glacial lakes on planetary bodies, as well as here on Earth. In these applications, melted or drilled vertical access shafts restrict vehicle geometry as well as the in-water infrastructure that may be deployed. The abil...
Article
Microbial mat growth can produce diagnostic delicate structures in low-energy environments, but mat morphology, and thus preservation of delicate structures as morphological biosignatures, is affected by mud accumulation. In Lake Joyce, Antarctica, varying rates of siliciclastic mud deposition affected the morphology of partially calcified microbia...
Article
Five decades of observations of Ceres suggest that the dwarf planet has a composition similar to carbonaceous meteorites and may have an ice-rich outer shell protected by a silicate layer. NASA’s Dawn spacecraft has detected ubiquitous clays, carbonates and other products of aqueous alteration across the surface of Ceres, but surprisingly it has di...
Poster
Full-text available
Updated and continued analysis of SIMPLE project field data.
Poster
Full-text available
Earth’s thick ice shelves provide an important analog for the physicochemical, and potentially microbial, characteristics of icy worlds such as Europa.
Conference Paper
Since the late 1970’s, the possibility of ice on Ceres has been a topic of broad discussion that engages data ranging from surface spectroscopy to shape and density. Thermal models suggest that subsurface ice on Ceres is stable for the lifetime of the solar system. Dawn arrived at Ceres in 2015 with a suite of instruments to answer this question bu...
Poster
Full-text available
Lake Joyce is a perennially ice covered lake in Antarctica’s McMurdo Dry Valleys. Benthic microbial mats growing at specific sites in the lake, referred to as ”webbed pinnacles,” are morphologically analogous to microbial textures preserved in 2.5 billion year old carbonate rocks. By evaluating webbed pinnacle distribution in the lake, it may be po...
Poster
Full-text available
There are a series of linear volcanic features in the Phlegra Dorsa feature that formed when lava flowed over sediment that contained liquid or frozen water. In the same region, there is large channel ~200-500 meters wide. I believe the interactions between these two features are evidence for water and potentially nearby ancient geothermal environm...

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