Ontology highlight
ABSTRACT:
SUBMITTER: Foschi M
PROVIDER: S-EPMC7668107 | biostudies-literature | 2020 Nov
REPOSITORIES: biostudies-literature
Foschi Martino M Cartwright Joseph A JA MacMinn Christopher W CW Etiope Giuseppe G
Proceedings of the National Academy of Sciences of the United States of America 20201026 45
Geologic hydrocarbon seepage is considered to be the dominant natural source of atmospheric methane in terrestrial and shallow-water areas; in deep-water areas, in contrast, hydrocarbon seepage is expected to have no atmospheric impact because the gas is typically consumed throughout the water column. Here, we present evidence for a sudden expulsion of a reservoir-size quantity of methane from a deep-water seep during the Pliocene, resulting from natural reservoir overpressure. Combining three-d ...[more]