@booklet {GarciaX.MonteysX.EvansR.LandSzpak2014,
	title = {{Near seabed geology using a multidisciplinary geophysical approach in a shallow gas environment in the Malin Sea (NW Ireland)}},
	year = {2014},
	keywords = {accepted, Geochemistry, Geophysics, Geosystems},
	author = {Garcia, X. and Monteys, X. and Evans, R.L and Szpak, M.T.}
}
@article {Szpak2012,
	title = {{Geophysical and geochemical survey of a large marine pockmark on the Malin Shelf, Ireland}},
	journal = {Geochemistry, Geophysics, Geosystems},
	volume = {13},
	number = {1},
	year = {2012},
	month = {jan},
	pages = {n/a{\textendash}n/a},
	abstract = {Marine pockmarks are a specific type of seabed geological setting resembling craters or pits and are considered seabed surface expressions of fluid flow in the subsurface. A large composite pockmark on the Malin Shelf, off the northern coast of Ireland was surveyed and ground truthed to assess its activity and investigate fluid related processes in the subsurface. Geophysical (including acoustic and electromagnetic) data confirmed the subsurface presence of signatures typical of fluids within the sediment. Shallow seismic profiling revealed a large shallow gas pocket and typical gas related indicators such as acoustic blanking and enhanced reflectors present underneath and around the large pockmark. Sulphate profiles indicate that gas from the shallow reservoir has been migrating upwards, at least recently. However, there are no chimney structures observed in the sub-bottom data and the migration pathways are not apparent. Electromagnetic data show slightly elevated electrical conductivity on the edges of the pockmarks and a drop below regional levels within the confines of the pockmark, suggesting changes in physical properties of the sediment. Nuclear Magnetic Resonance (NMR) experiments were employed to characterize the organic component of sediments from selected depths. Very strong microbial signatures were evident in all NMR spectra but microbes outside the pockmark appear to be much more active than inside. These observations coincide with spikes in conductivity and the lateral gas bearing body suggesting that there is an increase in microbial activity and biomass when gas is present. Copyright 2012 by the American Geophysical Union.},
	keywords = {electromagnetic, Malin Shelf, microbial, NMR, organic matter, pockmark},
	issn = {15252027},
	doi = {10.1029/2011GC003787},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84856247401\&partnerID=tZOtx3y1},
	author = {Szpak, M. T. and Monteys, X. and O{\textquoteright}Reilly, S. and Simpson, A. J. and Garcia, X. and Evans, R. L. and Allen, C. C. R. and McNally, D. J. and Courtier-Murias, D. and Kelleher, B. P.}
}
@conference {Monteys2009,
	title = {{Shallow geophysical characterization and fluid flow processes in two large pockmarks on the Malin Shelf, NW Ireland}},
	booktitle = {Near Surface 2009 - 15th European Meeting of Environmental and Engineering Geophysics},
	year = {2009},
	publisher = {European Association of Geoscientists and Engineers, EAGE},
	organization = {European Association of Geoscientists and Engineers, EAGE},
	abstract = {Shallow geophysical datasets and ground-truthing have been used in this research to characterize in detail two large gas related depressions in a recently discovered pockmark field on the Malin Shelf, northwest Ireland. Pockmarks are aligned to the main deep fault of the region, the SW-NE Skerryvore Fault. High resolution multibeam bathymetry and backscatter reveal the surface morphology of these seabed features to the meter scale. They appear as subcircular depressions and present several units within a generally smooth seabed. Shallow seismic and single-beam echosounder records reveal evidence of gas related activity within the subsurface strata. Electromagnetic results present a number of anomalies in conductivity associated with inhomogenities in the upper strata. These anomalies consist in a decrease in conductivity and in general, correlate well with acoustic anomalies.},
	isbn = {9073781728},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84912149526\&partnerID=tZOtx3y1},
	author = {Monteys, X. and Garcia, X. and Evans, R. and Szpak, M. and Kelleher, B. and Hardy, D.}
}
