Show simple item record

dc.contributor.authorSiegel, Jacob  Concept link
dc.contributor.authorPerson, Mark  Concept link
dc.contributor.authorDugan, Brandon  Concept link
dc.contributor.authorCohen, Denis  Concept link
dc.contributor.authorLizarralde, Daniel  Concept link
dc.contributor.authorGable, Carl  Concept link
dc.date.accessioned2015-02-25T19:13:52Z
dc.date.available2015-06-05T09:08:28Z
dc.date.issued2014-12-05
dc.identifier.citationGeochemistry, Geophysics, Geosystems 15 (2014): 4651–4670en_US
dc.identifier.urihttps://hdl.handle.net/1912/7168
dc.descriptionAuthor Posting. © American Geophysical Union, 2014. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Geochemistry, Geophysics, Geosystems 15 (2014): 4651–4670, doi:10.1002/2014GC005569.en_US
dc.description.abstractMultiple late Pleistocene glaciations that extended onto the continental shelf offshore Massachusetts, USA, may have emplaced as much as 100 km3 of freshwater (salinity <5 ppt) in continental shelf sediments. To estimate the volume and extent of offshore freshwater, we developed a three-dimensional, variable-density model that couples fluid flow and heat and solute transport for the continental shelf offshore Massachusetts. The stratigraphy for our model is based on high-resolution, multichannel seismic data. The model incorporates the last 3 Ma of climate history by prescribing boundary conditions of sea level change and ice sheet extent and thickness. We incorporate new estimates of the maximum extent of a late Pleistocene ice sheet to near the shelf-slope break. Model results indicate that this late Pleistocene ice sheet was responsible for much of the emplaced freshwater. We predict that the current freshwater distribution may reach depths up to 500 meters below sea level and up to 30 km beyond Martha's Vineyard. The freshwater distribution is strongly dependent on the three-dimensional stratigraphy and ice sheet history. Our predictions improve our understanding of the distribution of offshore freshwater, a potential nonrenewable resource for coastal communities along recently glaciated margins.en_US
dc.description.sponsorshipThis work was funded by NSF-OCE-0824368.en_US
dc.format.mimetypeapplication/pdf
dc.language.isoen_USen_US
dc.publisherJohn Wiley & Sonsen_US
dc.relation.urihttps://doi.org/10.1002/2014GC005569
dc.subjectPleistoceneen_US
dc.subjectHydrogeologyen_US
dc.subjectContinental shelfen_US
dc.subjectGlaciationen_US
dc.subjectFreshwater resourcesen_US
dc.titleInfluence of late Pleistocene glaciations on the hydrogeology of the continental shelf offshore Massachusetts, USAen_US
dc.typeArticleen_US
dc.description.embargo2015-06-05en_US
dc.identifier.doi10.1002/2014GC005569


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record