Heather V. Graham
Astrobiology Analytical Laboratory, Greenbelt, MD
Activity
2024
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A CASE STUDY ON MICROBIAL COMMUNITIES AND BIOSIGNATURE PRESERVATION IN ACIDIC CAVE GYPSUM
T168 Sulfates on Earth, Mars, and BeyondTuesday, 24 September 20248:00 AM - 12:00 PM213A
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NITROGEN SOURCES AND CYCLING IN THE FRASASSI CAVES, ITALY: IMPLICATIONS FOR NITROGEN CYCLING IN THE SHALLOW SUBSURFACE
T2 New Voices in GeobiologySunday, 22 September 20248:00 AM - 12:00 PM208A
2023
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ISOTOPIC SIGNATURES OF NITROGEN CYCLING IN SULFURIC ACID CAVES
T133 Karst Ecosystems and BiogeochemistryMonday, 16 October 20231:30 PM - 5:30 PM310 / 311
2022
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MICROBIAL COLONIZATION AND BIOSIGNATURE PRESERVATION POTENTIAL IN ACIDIC GYPSUM DEPOSITS FROM SULFIDIC CAVES
T125 New Voices in Geobiology (Posters)Monday, 10 October 20222:00 PM - 6:00 PMExhibit Hall F
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NITROGEN SOURCES AND SIGNATURES IN SULFURIC ACID CAVES
T87 New Voices in GeobiologyMonday, 10 October 20228:00 AM - 12:00 PM507
2015
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BUILDING A FOREST FROM THE LEAVES: ISOTOPIC METHODS FOR RECONSTRUCTING FOREST STRUCTURE OF THE PAST
T247 Late Paleocene and Early Eocene Hyperthermal Events in Terrestrial and Marine SystemsTuesday, 3 November 20151:30 PM - 5:30 PMRoom 342
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ASSESSING THE EFFECTS OF SOLUTION CHEMISTRY ON THE δD COMPOSITION WEATHER MINERALS: ISOTOPE ANALYSIS OF STRUCTURE WATERS IN SYNTHETIC PHYLLOSILICATES FORMED IN EXTREME PH AND SALINE FLUIDS
T21 When Water Meets Rock: Aqueous Alteration in the Solar SystemSunday, 1 November 20158:00 AM - 12:00 PMRoom 344