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A Geographic Model to Assess and Limit Cumulative Ecological Degradation from Marcellus Shale Exploitation in New York, USA Ecology and Society
Davis, John B; State University of New York (SUNY) at Albany; Sage College of Albany ; davisj5@sage.edu; Robinson, George R; State University of New York (SUNY) at Albany; grobins@albany.edu.
When natural resources are exploited, environmental costs and economic benefits are often asymmetric. An example is apparent in the environmental impacts from fossil fuel extraction by hydraulic fracturing. So far, most scrutiny has been focused on water quality in affected aquifers, with less attention paid to broader ecological impacts beyond individual drilling operations. Marcellus Shale methane exploitation in New York State, USA, has been delayed because of a regulatory moratorium, pending evaluation that has been directed primarily at localized impacts. We developed a GIS-based model, built on a hexagonal grid underlay nested within the U.S. Environmental Protection Agency’s EMAP system, to examine potential cumulative ecological impacts....
Tipo: Peer-Reviewed Reports Palavras-chave: Core forest; Hexagon land-cover grid; Hydraulic fracturing; Marcellus Shale formation; Natural resource sharing; New York State; Sensitive species and ecosystems.
Ano: 2012
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High-resolution 3D-seismic data indicate focussed fluid migration pathways above polygonal fault systems of the mid-Norwegian margin ArchiMer
Hustoft, S; Mienert, Jurgen; Bunz, S; Nouze, Herve.
Seismic attribute analysis and interpretation of high-resolution 3D- and 2D-seismic data reveal focussed fluid flow processes through the gas hydrate stability zone (GHSZ) at the northern flank of the giant Storegga Slide. Diffusive fluid migration predominantly starts from a widespread polygonal fault system in fine-grained sediments of the Miocene Kai Formation. The overlying 600-700 m thick Plio-Pleistocene Naust Formation shows spatially related soft-sediment deformation and overlying fluid conduits. A low relief antiform structure connects to an overlying 250 m high, 300 m wide and 3 km elongated columnar zone, where seismic signatures suggest self-enhanced permeability, i.e. natural hydraulic fracturing. "Push-down" effects create an elongated...
Tipo: Text Palavras-chave: Acoustic pipes and pockmarks; Feeding of methane to hydrate deposits; Hydraulic fracturing; Polygonal faulting; Norwegian margin.
Ano: 2007 URL: http://archimer.ifremer.fr/doc/2007/publication-4077.pdf
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