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Inwood, J.; Lofi, Johanna; Davies, Sarah J.; Basile, Christophe; Bjerum, Christian; Mountain, Gregory S.; Proust, Jean‐Noël; Otsuka, Hironori; Valppu, Henna

doi:10.1130/ges00913.1

Cited by 12 publications

(8 citation statements)

References 18 publications

(47 reference statements)

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“…Proust, 2013, personal commun.). The lithofacies succession in the three holes was tied to the downhole gamma-ray logs (Inwood et al, 2013). Wireline sonic logs acquired in the holes and calculation of synthetic seismograms from the multisensor core logger data tie the lithofacies description to the on-site seismic line 529 (Oc270) (Miller et al, 2013a).…”

Section: Seismic Profi Les and Facies Analysismentioning

confidence: 99%

“…In the upper part of the Expedition 313 drill sites, where few or no cores have been taken, we used the lithologies predicted from downhole logging data statistical analysis (Inwood et al, 2013). Close to the coast, we used the downhole gamma-ray logs from ODP Leg 150X Island Beach and AMCOR 2011 holes (Hathaway et al, 1976;Miller et al, 1994) to refi ne the permeability distribution.…”

Section: D Reservoir Geometry Along a Dip Section And Permeability Dmentioning

confidence: 99%

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Fresh-water and salt-water distribution in passive margin sediments: Insights from Integrated Ocean Drilling Program Expedition 313 on the New Jersey Margin

et al. 2013

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International audienceOn the New Jersey shelf (offshore North America), the presence of pore water fresher than seawater is known from a series of boreholes completed during the 1970s and 1980s. To account for this fresh water, a fi rst hypothesis involves possible present-day active dynamic connections with onshore aquifers, while a second involves meteoritic and/or sub- ice-sheet waters during periods of lowered sea level. Expedition 313 drilled three boreholes on the middle shelf, offering a unique opportunity for the internal structure of the siliciclastic system to be accessed, at scales ranging from the depositional matrix to the continental margin. This enables the stratigraphic architecture to be correlated with the spatial distribution and salinity of saturating fl uids. Expedition 313 revealed both very low salinities (<3 g/L) at depths exceeding 400 m below the seafl oor and evidence for a multilayered reservoir organization, with freshand/ or brackish-water intervals alternating vertically with salty intervals. In this study we present a revised distribution of the salinity beneath the middle shelf. Our observations suggest that the processes controlling salinity are strongly infl uenced by lithology, porosity, and permeability. Saltier pore waters generally occur in coarse-grained intervals and fresher pore waters occur in fi ne-grained intervals. The transition from fresher to saltier intervals is often marked by cemented horizons that probably act as permeability barriers. In the lowermost parts of two holes, the salinity varies independently of lithology, suggesting different mechanisms and/or sources of salinity. We present an interpretation of the sedimentary facies distribution, derived from core, logs, and seismic profi le analyses, that is used to discuss the marginscale two-dimensional reservoir geometry and permeability distribution. These proposed geometries are of primary importance when considering the possible pathways and emplacement mechanisms for the fresh and salty water below the New Jersey shelf

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Section: Seismic Profi Les and Facies Analysismentioning

confidence: 99%

Section: D Reservoir Geometry Along a Dip Section And Permeability Dmentioning

confidence: 99%

Fresh-water and salt-water distribution in passive margin sediments: Insights from Integrated Ocean Drilling Program Expedition 313 on the New Jersey Margin

et al. 2013

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“…1 and 2). We integrate the foraminiferal data with chronostratigraphy (Browning et al, 2013), lithofacies, seismic stratigraphy, and downhole logs (Miller et al, 2013a;Inwood et al, 2013) to produce paleobathymetric reconstructions within a seismic stratigraphic framework. We integrate these studies to interpret systems tracts and sequence stratigraphy.…”

Section: Introductionmentioning

confidence: 99%

Paleobathymetry and sequence stratigraphic interpretations from benthic foraminifera: Insights on New Jersey shelf architecture, IODP Expedition 313

et al. 2013

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Integrated Ocean Drilling Program (IODP) Expedition 313 drilled three holes (Sites M27, M28, and M29; 34-36 m present water depth) across a series of prograding clinothems from the inner continental shelf of the New Jersey (USA) margin, a region that is sensitive to sea-level change. We examined 702 late Eocene to Miocene samples for benthic foraminiferal assemblages and planktonic foraminiferal abundances. We integrate our results with lithofacies to reconstruct paleobathymetry. Biofacies at all three sites indicate a long-term shallowing-upward trend as clinothems built seaward and sediment fi lled accommodation space. Patterns in biofacies and lithofacies indicate shallowing-and deepening-upward successions within individual sequences, providing the basis to recognize systems tracts, and therefore sequence stratigraphic relationships in early to early-middle Miocene sequences (ca. 23-13 Ma). The clinothem bottomsets and the lower portions of the foresets, which contain the thickest parts of clinothems, yield the deepest water biofacies. Shallower bio facies characterize the sequences in the upper portions of the clinothem foresets and on the topsets. Topsets are characterized by transgressive (TST) and highstand systems tracts (HST). Foresets contain lowstand systems tracts (LST), TSTs, and HSTs. Flooding surfaces mark parasequence boundaries within LSTs, TSTs, and HSTs. Superimposed on the long-term trends, short-term variations in paleowater depth are likely linked to global sea-level changes indicated by global oxygen isotopic variations.

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“…Physical property measurements have also been used to differentiate a cover sequence from the basement rocks that hosts copper-gold mineralization (Vella and Emerson, 2009). Analyses of physical property measurements have been remarkably beneficial to ongoing Integrated Ocean Drilling Program (IODP) (Inwood et al, 2013;Ojha and Maiti, 2013) to identify subsurface geological settings, particularly where core is not fully recovered. Inwood et al (2013) utilized statistical techniques to classify downhole physical property measurements obtained during IODP to indicate facies variations.…”

Section: Introductionmentioning

confidence: 99%

“…Analyses of physical property measurements have been remarkably beneficial to ongoing Integrated Ocean Drilling Program (IODP) (Inwood et al, 2013;Ojha and Maiti, 2013) to identify subsurface geological settings, particularly where core is not fully recovered. Inwood et al (2013) utilized statistical techniques to classify downhole physical property measurements obtained during IODP to indicate facies variations. Interested readers are recommended to look up for published material by the Borehole Research Group of Leicester University and Borehole Research Group of the Lamont-Doherty Earth Observatory.…”

Section: Introductionmentioning

confidence: 99%

Clustering of downhole physical property measurements at the Victoria property, Sudbury for the purpose of extracting lithological information

Mahmoodi

Smith

2015

Journal of Applied Geophysics

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Cited by 12 publications

References 18 publications

Fresh-water and salt-water distribution in passive margin sediments: Insights from Integrated Ocean Drilling Program Expedition 313 on the New Jersey Margin

Fresh-water and salt-water distribution in passive margin sediments: Insights from Integrated Ocean Drilling Program Expedition 313 on the New Jersey Margin

Paleobathymetry and sequence stratigraphic interpretations from benthic foraminifera: Insights on New Jersey shelf architecture, IODP Expedition 313

Clustering of downhole physical property measurements at the Victoria property, Sudbury for the purpose of extracting lithological information

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