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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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Antarctica
-
Ross Ice Shelf (1)
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Chugach Terrane (1)
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Glacier Bay (2)
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North America
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Yakutat Terrane (1)
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Pacific Ocean
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East Pacific
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Northeast Pacific
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Gulf of Alaska (3)
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-
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North Pacific
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Northeast Pacific
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Gulf of Alaska (3)
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-
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United States
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Alaska
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Glacier Bay National Park (1)
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Yakutat Bay (3)
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-
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elements, isotopes
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metals
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iron (1)
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-
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fossils
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microfossils (1)
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Plantae
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algae
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diatoms (1)
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-
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geochronology methods
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paleomagnetism (1)
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geologic age
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Cenozoic
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Quaternary
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Cordilleran ice sheet (1)
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Holocene
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Neoglacial (1)
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Pleistocene
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upper Pleistocene (2)
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-
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-
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Primary terms
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Antarctica
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Ross Ice Shelf (1)
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Cenozoic
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Quaternary
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Cordilleran ice sheet (1)
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Holocene
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Neoglacial (1)
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Pleistocene
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upper Pleistocene (2)
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-
-
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faults (1)
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geomorphology (1)
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geophysical methods (2)
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glacial geology (3)
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hydrology (1)
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Integrated Ocean Drilling Program
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Expedition 341
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IODP Site U1417 (1)
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IODP Site U1419 (1)
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-
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metals
-
iron (1)
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North America
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Yakutat Terrane (1)
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-
Pacific Ocean
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East Pacific
-
Northeast Pacific
-
Gulf of Alaska (3)
-
-
-
North Pacific
-
Northeast Pacific
-
Gulf of Alaska (3)
-
-
-
-
paleomagnetism (1)
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Plantae
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algae
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diatoms (1)
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-
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sea water (1)
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sedimentary petrology (1)
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sedimentary rocks (1)
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sedimentary structures
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planar bedding structures
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laminations (1)
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rhythmic bedding (1)
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varves (1)
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-
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sedimentation (4)
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sediments
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clastic sediments
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diamicton (1)
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dust (1)
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mud (1)
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sand (2)
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silt (2)
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till (1)
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marine sediments (5)
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United States
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Alaska
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Glacier Bay National Park (1)
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Yakutat Bay (3)
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-
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sedimentary rocks
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sedimentary rocks (1)
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sedimentary structures
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sedimentary structures
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planar bedding structures
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laminations (1)
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rhythmic bedding (1)
-
varves (1)
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-
-
-
sediments
-
sediments
-
clastic sediments
-
diamicton (1)
-
dust (1)
-
mud (1)
-
sand (2)
-
silt (2)
-
till (1)
-
-
marine sediments (5)
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-
GeoRef Categories
Era and Period
Epoch and Age
Date
Availability
Multivariate modeling of glacimarine lithostratigraphy combining scanning XRF, multisensory core properties, and CT imagery: IODP Site U1419 Open Access
Cordilleran ice-sheet growth fueled primary productivity in the Gulf of Alaska, northeast Pacific Ocean Available to Purchase
Sedimentological Signature of A Deformable Bed Preserved Beneath An Ice Stream In A Late Pleistocene Glacial Sequence, Ross Sea, Antarctica Available to Purchase
Fjords as temporary sediment traps: History of glacial erosion and deposition in Muir Inlet, Glacier Bay National Park, southeastern Alaska Available to Purchase
Terrane-specific rock magnetic characteristics preserved in glacimarine sediment from southern coastal Alaska Available to Purchase
Strain Signatures of Fjord Sediment Sliding: Micro-Scale Examples from Yakutat Bay and Glacier Bay, Alaska, U.S.A. Available to Purchase
Temperate glacimarine varves; an example from Disenchantment Bay, Southern Alaska Available to Purchase
Ice-proximal sediment accumulation rates in a temperate glacial fjord, southeastern Alaska Available to Purchase
Sediment traps and echo sounder profiles collected between 1984 and 1987 were used to determine the rate and style of sediment infilling of a fjord basin with a temperate tidewater glacier at its head. McBride Glacier retreated rapidly (0.25 km/yr, 1984–1986; 0.05 km/yr, 1986–1987) enlarging a 90- to 100-m-deep basin adjacent to the terminus. Highly turbid meltwater is discharged subglacially at the base of the water column and rises to the surface forming turbid overflow plumes. Sedimentation rates from suspension settling decrease exponentially with distance from the subglacial stream; from 24 g/cm 2 /day at the terminus to less than 1 g/cm 2 /day, 1.3 km away. The total annual volume of sediment deposition within the ice-proximal basin of McBride Inlet was 3.6 × 10 6 m 3 between 1984 and 1985, 3.0 × 10 6 m 3 between 1985 and 1986, and 1.7 × 10 6 m 3 between 1986 and 1987. This sediment is contributed by suspension deposition from meltwater plumes, bedload transported by the subglacial stream, direct meltout of glacial debris, ice rafting, and side-entry sources. Rapid glacier flow and large amounts of meltwater and precipitation, a result of the temperate climate, enhance the production and delivery of sediment to the fjord. In McBride Inlet, meltwater discharge is the main ice-proximal sediment source. During 1984–1986, 67 percent of the total volume was deposited by suspension settling alone. Sediment infills the irregular bathymetry of the predepositional basin, producing a smooth, flat basin floor. Within this basin, sediment accumulation rates are as high as 13 m/yr, 300 m from the glacier. Major sediment sources are episodic, including sediment gravity flows, and daily and seasonal variations occur in meltwater discharge. Within temperate fjords a thick sequence of glacial marine sediment rapidly accumulates, filling proximal basins with interlaminated sand/silt and mud.