Member Since 2012
Kassandra Costa
Assistant Scientist, Woods Hole Oceanographic Institution
AGU Research
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Calculating Sedimentation Rates of Oxic Pelagic Clays Using Core Top Thorium Isotopes
GEOCHEMISTRY, GEOPHYSICS, GEOSYSTEMS
25 january 2025
Kassandra Costa, Frantz Ossa Ossa, Ann G. Dunlea, ...
Oxic pelagic clays are an important component of seafloor sediment that may hold valuable information about past ocean chemistry due to their affin...
Hydrothermal Metal Deposits in Pacific Ocean Sediment
DISENTANGLING HYDROTHERMAL IMPACTS ON OCEAN BIOGEOCHEMISTRY II ORAL
ocean sciences | 12 december 2024
Katherine Squires, Ann G. Dunlea, Morten B. Anders...
Hydrothermal vent fluids are a significant yet poorly understood source of many metals to the deep ocean. These metals, particularly iron (Fe), exert ...
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Ocean oxygenation changes in the Arabian Sea Oxygen Minimum Zone during the Penultimate Glacial Cycle
OXYGENATION DYNAMICS IN PAST OCEANS I POSTER
paleoceanography and paleoclimatology | 10 december 2024
Fang Qian, Yi Wang, Kassandra Costa, Sune Nielsen
Reconstructing past oxygen fluctuations in oxygen minimum zones (OMZs) is essential for comprehending their response to climate change. Despite numero...
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Comparing the Global Oceanic Rise in Oxygen during Terminations I and II
OXYGENATION DYNAMICS IN PAST OCEANS II ORAL
paleoceanography and paleoclimatology | 10 december 2024
Kassandra Costa, Fang Qian, Yi Wang, Sune Nielsen
Recent studies have consistently demonstrated that oxygen concentrations in the deep ocean were low during the last glacial maximum. Reoxygenation occ...
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Global Oxic Pelagic Sediment Sink of Marine Metals
TRACE ELEMENT DISTRIBUTIONS AND CYCLING ACROSS OCEAN BASINS III ORAL
ocean sciences | 10 december 2024
Ann G. Dunlea, Logan Tegler, Maureen E Auro, Kassa...
Oxic pelagic marine sediments accumulate biogeochemically important metals from seawater. Understanding the flux of elements from seawater into oxic m...
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Unraveling Carbonate Preservation and Dissolution in the Central Equatorial Pacific: Insights from Microfossil Abundance during the Last Glacial Maximum and Holocene
CLIMATE RECONSTRUCTION FROM THE PACIFIC REGION: INSIGHTS INTO PAST OCEANIC AND ATMOSPHERIC CONDITIONS I POSTER
paleoceanography and paleoclimatology | 15 december 2023
Serena Conde, Kassandra Costa, Katherine Papas
This study focuses on understanding carbon fluxes in marine sediments and their implications for Earth's carbon budget, CO2 emissions, and ocean acidi...
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Pelagic sedimentation rates in the North Pacific using Thorium-230 depth profiling
CLIMATE RECONSTRUCTION FROM THE PACIFIC REGION: INSIGHTS INTO PAST OCEANIC AND ATMOSPHERIC CONDITIONS I POSTER
paleoceanography and paleoclimatology | 15 december 2023
Kassandra Costa, Frank J. Pavia, Christopher G. Pi...
Evaluating the stratigraphy of the North Pacific is the first step towards understanding the role of this region in climate variability in the past. T...
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Is CaCO3 preservation in the Central Equatorial Pacific tied to organic carbon fluxes over the last deglaciation?
CLIMATE RECONSTRUCTION FROM THE PACIFIC REGION: INSIGHTS INTO PAST OCEANIC AND ATMOSPHERIC CONDITIONS I POSTER
paleoceanography and paleoclimatology | 15 december 2023
Katherine Papas, Kassandra Costa, Serena Conde, Al...
Antarctic ice cores record atmospheric CO2 that was ~100 ppm lower in the Last Glacial Maximum (LGM, 18-24,000 years ago) compared to the late Holocen...
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