W. M. Longo

Macalester College

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Anne E. Giblin

Marine Biological Laboratory

Yongsong Huang

Brown University

W. Daniels

University of Massachusetts Amherst

J. M. Russell

John Brown University

James T. Dillon

Brown University

Linda Amaral‐Zettler

Marine Biological Laboratory

Carrie Morrill

NOAA National Centers for Environmental Information

W. J. D'Andrea

Lamont-Doherty Earth Observatory

Susanna Theroux

Southern California Coastal Water Research Project

James M. Russell

Brown University

Cooperative Institutions

Brown University

John Brown University

Chinese Academy of Sciences

Planetary Science Institute

Rutgers, The State University of New Jersey

International Ocean Discovery Program

Columbia University

Rutgers Sexual and Reproductive Health and Rights

Lamont-Doherty Earth Observatory

Marine Biological Laboratory

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Hydroclimatic Effects on Post-Glacial Terrestrial Carbon Cycling in the Indonesian Archipelago: Two Mechanisms for Efficient Carbon Storage

AGU Fall Meeting Abstracts (2019)

W. M. Longo Valier Galy Nathalie Dubois D. Oppo Timothy I. Eglinton

Archipelago

Carbon fibers

Cycling

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New insights into environmental controls on the occurrence and abundance of Group I alkenones and their paleoclimate applications: Evidence from volcanic lakes of northeastern China

Earth and Planetary Science Letters (2019)

Yuan Yao Jiaju Zhao W. M. Longo Gaoyuan Li Xian Wang

Biogeochemical Cycle

Biogenic silica

Paleoclimatology

Freshwater ecosystem

Paleolimnology

10.1016/j.epsl.2019.115792

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Citations (26)

Deep submarine infiltration of altered geothermal groundwater on the south Chilean Margin

Communications Earth & Environment (2022)

Vincent J. Clementi Yair Rosenthal Samantha C. Bova Elizabeth K. Thomas James D. Wright

Abstract Submarine groundwater discharge is increasingly recognized as an important component of the oceanic geochemical budget, but knowledge of the distribution of this phenomenon is limited. To date, reports of meteoric inputs to marine sediments are typically limited to shallow shelf and coastal environments, whereas contributions of freshwater along deeper sections of tectonically active margins have generally been attributed to silicate diagenesis, mineral dehydration, or methane hydrate dissociation. Here, using geochemical fingerprinting of pore water data from Site J1003 recovered from the Chilean Margin during D/V JOIDES Resolution Expedition 379 T, we show that substantial offshore freshening reflects deep and focused contributions of meteorically modified geothermal groundwater, which is likely sourced from a reservoir ~2.8 km deep in the Aysén region of Patagonia and infiltrated marine sediments during or shortly after the last glacial period. Emplacement of fossil groundwaters reflects an apparently ubiquitous phenomenon in margin sediments globally, but our results now identify an unappreciated locus of deep submarine groundwater discharge along active margins with potential implications for coastal biogeochemical processes and tectonic instability.

Submarine groundwater discharge

Continental Margin

10.1038/s43247-022-00541-3

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Group I Alkenones in the Volcanic Lakes of Northeastern China: Implication for Paleotemperature Reconstructions

AGU Fall Meeting Abstracts (2018)

Yulong Yao Jialin Zhao W. M. Longo G. Li Xing Wang

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Insolation and greenhouse gases drove Holocene winter and spring warming in Arctic Alaska