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outwash

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Journal Article
Journal: Geology
Published: 29 May 2020
Geology (2020) 48 (9): 867–871.
... carbon, and gravel-sized charcoal particles are common on the outwash plain in front of the crater. The organic matter is depleted in the thermally sensitive, labile bio-macromolecule proto-hydrocarbons. Pebble-sized lumps of lignite collected close to the sand sample consist largely of fragments...
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Journal Article
Published: 30 July 2019
Journal of the Geological Society (2019) 176 (6): 1169–1181.
... that the present limits of loess are probably close to their original boundaries. The past proximity of the British Ice Sheet, the accumulation of dusty sediments coating north-facing cliffs of Brittany originating in the outwash of the British–Irish Ice Sheet and in the palaeo-rivers of the English Channel...
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Series: GSA Field Guide
Published: 10 December 2018
DOI: 10.1130/2018.0051(07)
EISBN: 9780813756516
... Kentucky River sands and demonstrates that pre-Illinois ice extended into Kentucky. The modern-day course of the Ohio River was incised after the pre−Illinois Episode, and then aggraded with transportation of Illinois Episode glacial outwash. Deposition of outwash at the mouths of tributaries caused...
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Series: GSA Field Guide
Published: 10 December 2018
DOI: 10.1130/2018.0051(11)
EISBN: 9780813756516
... Isotope Stages [OIS] 2 [Wisconsin Episode] and 6 [Illinois Episode]) have been the focus of recent stratigraphic and chronologic investigation. New radiocarbon and optically stimulated luminescence (OSL) dating from outcrop and core has refined the timing of OIS 2 and OIS 6 ice sheet advances, outwash...
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Series: GSA Field Guide
Published: 10 December 2018
DOI: 10.1130/2018.0051(06)
EISBN: 9780813756516
... ABSTRACT The Great Miami Buried Valley Aquifer system (GMBVAS) is a U.S. EPA–designated sole-source aquifer for most of the ~2.3 million residents of the Great Miami River basin. The aquifer system is similar to many of the glacial outwash–alluvial aquifers found throughout the southern...
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Series: Geological Society, London, Special Publications
Published: 01 January 2018
DOI: 10.1144/SP435.6
EISBN: 9781786202901
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Series: GSA Special Papers
Published: 01 January 2016
DOI: 10.1130/2015.2516(20)
... with thick deposits of coarse- and fine-grained alluvium prior to 350 ka, during the major glacial phase of MIS 12. During the cold stages that followed MIS 12, ice was less extensive and limited to the Orjen plateau, and there is little evidence of outwash deposition during these later glaciations. Surface...
Series: GSA Field Guide
Published: 01 January 2014
DOI: 10.1130/2014.0037(09)
EISBN: 9780813756370
... mountains. Terminal moraine ages are youngest for the outer Jenny Lake moraines (14.6 ± 0.7 10 Be ka). These are buried by younger outwash from terminal moraines on the south margin of the greater Yellowstone glacial system. This pattern suggests that the center of mass of the greater Yellowstone glacial...
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Series: GSA Field Guide
Published: 01 January 2014
DOI: 10.1130/2014.0038(07)
EISBN: 9780813756387
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Journal Article
Published: 01 May 2013
Environmental and Engineering Geoscience (2013) 19 (2): 99–114.
...NATHANIEL R. SWANSON; PAUL M. SANTI Abstract Colluvium and debris-flow deposits differ from each other and from glacial till and glacial outwash deposits in Durango, CO, in terms of sedimentological properties evaluated using laboratory testing. Testing included grain-size analysis, Atterberg...
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Journal Article
Journal: GeoArabia
Publisher: Gulf Petrolink
Published: 01 January 2013
GeoArabia (2013) 18 (1): 97–134.
... valley systems. In the Unayzah C, subsurface isopach mapping suggests down-valley transport from the north, implying that at least some of the ice was situated in localized, upland (alpine) ice caps. Multiple phases of glacial advance and retreat occurred. Glacial outwash sands and gravels (representing...
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Series: GSA Special Papers
Published: 01 December 2011
DOI: 10.1130/2011.2483(20)
... generated outwash flood resulting in a sandur, or sheet of outwash sands and gravel). We imaged unconsolidated sediment particles in situ at about hand lens scale and documented their characteristics at six sites along the sandur. Average particle size and number of angular, very angular, and subangular...
Journal Article
Journal: GSA Bulletin
Published: 01 July 2011
GSA Bulletin (2011) 123 (7-8): 1478–1496.
... to have been derived from the underlying till by water that flowed through a subglacial conduit (R-channel), within which the narrow gravelly central ridge was deposited. Most mud and finer sand bypassed the conduit and was deposited proglacially on the floor of the Champlain Sea, first as sandy outwash...
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Journal Article
Journal: Geology
Published: 01 February 2011
Geology (2011) 39 (2): 103–106.
... on outwash terraces can be directly dated to determine the timing of early–middle Quaternary glacial advances in southern South America. Cosmogenic 10 Be and 26 Al surface exposure ages were obtained from outwash gravels associated with two of the oldest glacial sequences in the Lago Pueyrredón valley (47.5...
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Journal Article
Published: 01 July 2009
Journal of Sedimentary Research (2009) 79 (7): 495–522.
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Series: GSA Special Papers
Published: 01 January 2009
DOI: 10.1130/2009.2460(02)
Journal Article
Journal: Geology
Published: 01 January 2009
Geology (2009) 37 (1): 3–6.
... and dated samples from the Fiordland continental margin. These rates are derived from dextral displacements of relict but well-preserved glacial geomorphology (moraines and outwash fans), interpreted to 17 (+2/−1, calendar) ka. The weighted mean slip rate is 27.2 (−3.0/+1.8) mm/yr on the shelf between...
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Journal Article
Journal: GSA Bulletin
Published: 01 May 2007
GSA Bulletin (2007) 119 (5-6): 515–528.
... including ground moraines and kames with some outwash. The moraines are composed of silts, sands, and gravels, while the outwash is mostly sorted sands and gravels ( Farrand, 1982 ). The Quaternary sediment is variable in thickness (<15–122 m) and is inhomogeneous, containing lenses of material...
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Series: GSA Special Papers
Published: 01 January 2007
DOI: 10.1130/2007.2432(11)
... gravels. Infrared stimulated luminescence (IRSL) dating on the lake beds yielded an age of 60.3 ∼5.6 ka BP, suggesting late OIS 4 ( oxygen isotope stage ) age for the lake. A subsequent phase of fluvial aggradation buried paleolake deposits under 65 m of glaciofluvial outwash. This was followed...
Series: GSA Field Guide
Published: 01 January 2007
DOI: 10.1130/2007.fld009(02)
EISBN: 9780813756097
... 1957 , 1960 ; Kovanen and Easterbrook, 2002 ). Meltwater streams deposited Sumas outwash on top of the Everson glaciomarine drift, resulting in an outwash plain that extends southward from north of the U.S.-Canadian border to near the mouth of the Nooksack River. Sumas moraines and ice contact...
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