Graham Lau

Graham Lau

Longmont, Colorado, United States
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About

At Blue Marble Space, my dual role as a Research Scientist and Director of Communications…

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Activity

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Experience

  • Blue Marble Space Graphic

    Blue Marble Space

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    Washington DC and Houston, Texas

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    Colorado, United States

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    Boulder, Colorado

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    Boulder, Colorado, USA

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    Boulder, Colorado

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    Red Lion, Pennsylvania

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    Graduate School of Oceanography; Narragansett, Rhode Island

Education

  • University of Colorado Boulder Graphic

    University of Colorado Boulder

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    Activities and Societies: Member and Organizer of the CU Astrobiology Journal Club

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Licenses & Certifications

Volunteer Experience

  • Denver Museum of Nature & Science Graphic

    Exhibit Facilitator

    Denver Museum of Nature & Science

    - 3 years 5 months

    Science and Technology

    I facilitated learning and exploration in the Space Odyssey exhibit of DMNS, sharing the wonders of Earth and space science and space exploration with museum members and guests.

  • Nepris Inc. Graphic

    Virtual Volunteer

    Nepris Inc.

    - 6 years 1 month

    Education

    I participated in Nepris' skills-based volunteering platform to connect with teachers and students across America, to share my knowledge of astrobiology, Earth science, and space exploration. I offered my time to speak with student groups as well as groups of educators who were interested in a large variety of STEM-related topics.

Publications

  • Sulfur- and Iron-Rich Mineralogical Features Preserved in Permafrost in the Canadian High Arctic: Analogs for the Astrobiological Exploration of Mars

    Frontiers in Astronomy and Space Sciences

    Elliptical sulfate-rich features, stained red by the presence of iron oxides, are set within permafrost and carbonate rock at Borup Fiord Pass in the Canadian High Arctic. These features, which vary in diameter from ∼0.5 to 3 m, exhibit the co-localization of sulfur (S) and iron (Fe) minerals, with S and Fe both preserved in multiple oxidation states. Through application of x-ray diffraction (XRD) and Raman microspectroscopy, we find that these features appear to encapsulate central cores with…

    Elliptical sulfate-rich features, stained red by the presence of iron oxides, are set within permafrost and carbonate rock at Borup Fiord Pass in the Canadian High Arctic. These features, which vary in diameter from ∼0.5 to 3 m, exhibit the co-localization of sulfur (S) and iron (Fe) minerals, with S and Fe both preserved in multiple oxidation states. Through application of x-ray diffraction (XRD) and Raman microspectroscopy, we find that these features appear to encapsulate central cores with abundant pyrite while S0, gypsum, and iron-bearing secondary minerals such as jarosite, goethite, and hematite have formed from oxidative weathering of the pyrite. These features appear similar to terrestrial gossans, mineral features representative of weathered sulfide ores in the near-surface. We use Raman microspectroscopy and scanning transmission x-ray microscopy (STXM) to show that organic carbon is associated with the minerals within these features. The origin of this carbon remains enigmatic; however, we consider the possibility that this carbon, along with etching of the pyrite grains and accumulation of encrusted filaments detected in the features, may be indicative of preserved biological activity during alteration of the pyrite. We also consider how such geological sulfide emplacements and their weathered surface expressions may provide a target for future surface and remote sensing studies of Mars and in the search for extraterrestrial life.

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  • Low-temperature formation and stabilization of rare allotropes of cyclooctasulfur (β-S8 and γ-S8) in the presence of organic carbon at a sulfur-rich glacial site in the Canadian High Arctic

    Geochimica et Cosmochimica Acta

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Languages

  • Spanish

    Limited working proficiency

Organizations

  • The Planetary Society

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    - Present

  • The Geochemical Society

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  • The Mars Society

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