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NARROW
Format
Article Type
Journal
Publisher
GeoRef Subject
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all geography including DSDP/ODP Sites and Legs
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Arctic Ocean
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Alpha Cordillera (1)
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Canada Basin (1)
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Canada
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Arctic Archipelago (2)
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Nunavut (1)
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Queen Elizabeth Islands (2)
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Western Canada
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Northwest Territories (2)
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-
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James River (3)
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North America
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Appalachians
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Blue Ridge Province (1)
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Piedmont (1)
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-
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Outer Banks (1)
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South America
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Colombia (1)
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United States
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Atlantic Coastal Plain (2)
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Hudson River (1)
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Maryland (1)
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North Carolina (2)
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Potomac River (1)
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Potomac River basin (1)
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Susquehanna River (2)
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Virginia
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Rappahannock River (1)
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commodities
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heavy mineral deposits (1)
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metal ores
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gold ores (1)
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placers (1)
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elements, isotopes
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metals
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iron (1)
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nickel (1)
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zinc (1)
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geologic age
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Cenozoic
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Quaternary
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Pleistocene
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upper Pleistocene
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Wisconsinan
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upper Wisconsinan (1)
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-
-
-
-
-
-
minerals
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oxides
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chromite (1)
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hematite (1)
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ilmenite (3)
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iron oxides (3)
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magnetite (3)
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titanomagnetite (1)
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silicates
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sheet silicates
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clay minerals
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kaolinite (1)
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-
-
-
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Primary terms
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Arctic Ocean
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Alpha Cordillera (1)
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Canada Basin (1)
-
-
Canada
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Arctic Archipelago (2)
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Nunavut (1)
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Queen Elizabeth Islands (2)
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Western Canada
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Northwest Territories (2)
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-
-
Cenozoic
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Quaternary
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Pleistocene
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upper Pleistocene
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Wisconsinan
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upper Wisconsinan (1)
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-
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-
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clay mineralogy (2)
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continental shelf (1)
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data processing (1)
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economic geology (1)
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geochemistry (2)
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glacial geology (1)
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heavy mineral deposits (1)
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marine geology (2)
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metal ores
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gold ores (1)
-
-
metals
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iron (1)
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nickel (1)
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zinc (1)
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-
North America
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Appalachians
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Blue Ridge Province (1)
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Piedmont (1)
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-
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ocean basins (1)
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oceanography (2)
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paleoclimatology (1)
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placers (1)
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sedimentary petrology (1)
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sedimentation (5)
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sediments
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clastic sediments
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clay (1)
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cobbles (1)
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drift (1)
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dust (1)
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erratics (1)
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gravel (1)
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sand (3)
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till (1)
-
-
marine sediments (2)
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South America
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Colombia (1)
-
-
stratigraphy (1)
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United States
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Atlantic Coastal Plain (2)
-
Hudson River (1)
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Maryland (1)
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North Carolina (2)
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Potomac River (1)
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Potomac River basin (1)
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Susquehanna River (2)
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Virginia
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Rappahannock River (1)
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-
-
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sedimentary structures
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channels (1)
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-
sediments
-
sediments
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clastic sediments
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clay (1)
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cobbles (1)
-
drift (1)
-
dust (1)
-
erratics (1)
-
gravel (1)
-
sand (3)
-
till (1)
-
-
marine sediments (2)
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-
GeoRef Categories
Era and Period
Epoch and Age
Book Series
Date
Availability
Chemical Fingerprinting, A Precise and Efficient Method To Determine Sediment Sources Available to Purchase
Quaternary ice transport in the Canadian Arctic and extent of Late Wisconsinan Glaciation in the Queen Elizabeth Islands Available to Purchase
Mysterious iron-nickel-zinc arctic spherules Free
A statistical approach to source determination of lithic and Fe oxide grains; an example from the Alpha Ridge, Arctic Ocean Available to Purchase
Provenance of Quaternary Beach Deposits, Virginia and North Carolina Available to Purchase
Abstract The elemental compositions of relatively unweathered Fe-Ti oxide grains, mostly ilmenite, separated from 83 samples collected from late Pleistocene to modern beach sands in Virginia and North Carolina were compared to those of 72 samples from five potential source rivers, the Roanoke, James, Potomac, Susquehanna, and Hudson Rivers. The composition of the Fe-Ti oxides from the toe of the Suffolk Scarp have a much different provenance than do younger beach deposits to the east. Based on discriminant analysis classification of the Fe-Ti oxide compositions with potential source rivers, the Suffolk Scarp beach is inferred to have been derived primarily from the James River; the younger beaches, including modern beach deposits of the Outer Banks, North Carolina, are inferred to have been primarily from the Susquehanna River with minor input by the Hudson River via longshore transport and reworking of shelf sands. The difference in provenance is due primarily to the origin of the Suffolk Scarp beach by erosion of older estuarine units in a protected-bay beach setting, whereas the younger beach deposits were derived from reworking of shelf sands, probably bay-mouth sand deposits (massifs), in an unprotected or barrier-beach setting. Subtle differences in the Fe-Ti oxide compositions among beach deposits are due to changes in the mix from the different river sources. Discrimination of the differences allows for a clearer understanding of the interrelation among those coastal-plain ridges and scarps that contain the beach sands.