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Journal Article
Journal: Geology
Published: 01 June 2016
Geology (2016) 44 (6): 439-442.
... is necessary to assess the linkages of thermokarst processes with climate variability. We analyzed sediment cores from two lakes on the Alaskan North Slope (USA), one with (Lake NE14) and one without (Perch Lake) watershed thermo-erosion. Distinct geochemical and lithological characteristics provide evidence...
FIGURES
Journal Article
Journal: Geosphere
Published: 01 April 2016
Geosphere (2016) 12 (2): 632-643.
...Zhanju Lin; Jing Luo; Fujun Niu AbstractThe thermal influence of a thermokarst lake on permafrost in the Beiluhe Basin of the Qinghai-Tibet Plateau was examined over nearly 10 yr (2006–2014), and lake development involved both downward and lateral heat transfers. Downward heat transfer rapidly...
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Journal Article
Published: 17 May 2012
Canadian Journal of Earth Sciences (2012) 49 (8): 979-986.
... channel. Areas proximal to the gully were characterized by thermokarst terrain. The gully was initiated in 1999, and the location of the first sinkhole is indicated by a red circle on Fig. 3 . The gully then progressed simultaneously in opposite directions ( Fig. 3 ), with 390 m of gullying development...
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Series: GSA Special Papers
Published: 01 December 2011
DOI: 10.1130/2011.2483(12)
Series: GSA Special Papers
Published: 01 December 2011
DOI: 10.1130/2011.2483(13)
Published: 01 January 2009
DOI: 10.1130/2009.monitoring(09)
EISBN: 9780813759432
... Technician/volunteer Yes $ Individual Medium Borehole temperatures Expert Yes $$$ § Group High Physical Conditions Thermokarst features Technician/volunteer Yes $ Individual Low Photo-trend plots Technician/volunteer No $ Individual Low Topographic surveys...
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Journal Article
Published: 31 January 2008
Canadian Journal of Earth Sciences (2008) 45 (1): 31-43.
.... Ground temperatures increased since 2000, most likely because of underground warming owing to groundwater flow around the permafrost body. As a result, the mound has started to settle down, and an incipient thermokarst pond became conspicuous in 2003. Detailed scrutiny of the internal composition...
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Journal Article
Journal: Geology
Published: 01 July 2007
Geology (2007) 35 (7): 583-586.
...J.C. Mars; D.W. Houseknecht AbstractA new quantitative coastal land gained-and-lost method uses image analysis of topographic maps and Landsat thematic mapper short-wave infrared data to document accelerated coastal land loss and thermokarst lake expansion and drainage. The data span 1955–2005...
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Series: GSA Special Papers
Published: 01 January 2007
DOI: 10.1130/2007.2426(07)
... that thermokarst and nearshore processes are critical in altering the development of permafrost in the submarine environment. This study focused on ice complex coasts. Transects were drilled in the nearshore zone of three study sites: (1) Muostakh Island (24 in Fig. 2 ), (2) Bykovsky Peninsula (21 in Fig. 2...
Journal Article
Published: 01 October 2004
Journal of Foraminiferal Research (2004) 34 (4): 249-257.
... Advanced Science Institutes, Ser. C, Mathematical and Physical Sciences , v. 327 , p. 783 –791. D allimore , A., 1998 , Holocene environmental history of thermokarst lakes on Richards Island, Northwest Territories, Canada: Thecamoebians as paleolimnological indicators: Ph.D. Dissertation, Carleton...
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Journal Article
Published: 08 October 2003
Canadian Journal of Earth Sciences (2003) 40 (10): 1393-1404.
.... Waves and tidal currents are mainly responsible for the evacuation and transport of thermokarst-produced silts and clays from the shore into the marine basin. © 2003 NRC Canada 2003 Relative sea level is rising along most of the shorelines in the world. Two well-documented exceptions to this worldwide...
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Journal Article
Published: 20 November 2002
Canadian Journal of Earth Sciences (2002) 39 (11): 1657-1674.
... that the growth of aggradational ice from the seasonal upward and downward fluxes of water in both the active layer and top of permafrost may modify the response of the active layer to climate change. Lake Illisarvik, prior to drainage, was a thermokarst lake that had been enlarging for thousands of years...
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Journal Article
Published: 11 January 2002
Canadian Journal of Earth Sciences (2002) 39 (1): 95-111.
..., some curvature in the infilled pit, frozen for the first time, would be anticipated. Results from other infilled pits have also supported the concept of upward cracking. Lake Illisarvik, prior to drainage, was a thermokarst lake that had been enlarging for thousands of years mainly by encroachment...
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Journal Article
Published: 11 April 2001
Canadian Journal of Earth Sciences (2001) 39 (4): 505-518.
.... The shallow-water platform of the delta shows a thin surficial unit of wave-worked sand that overlies fine-grained, deeper water deposits derived from erosion of clay soils in the river catchment a few centuries ago, probably during periods of intense thermokarst activity. As the isostatic uplift continues...
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Journal Article
Published: 01 April 2000
Canadian Journal of Earth Sciences (2000) 37 (1): 63-80.
... paleoenvironmental changes induced by the transgression of the Beaufort Sea during successive periods of lacustrine conditions, breaching and flooding of thermokarst lakes by the sea, and the landward migration of sandy spits. Based on radiocarbon dates and quantitative paleodepth determinations, a relative sea...
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Journal Article
Published: 01 November 1999
Canadian Journal of Earth Sciences (1999) 36 (7): 1227-1238.
..., ground ice content is generally low, as suggested by lack of thermokarst and other permafrost features. However, distinctive surface relief in hummocky till including kettle depressions, rim-ridges, and shallow thaw flowslides may be attributed to massive ice, resulting in sensitive till terrain...
Journal Article
Published: 01 July 1997
Canadian Journal of Earth Sciences (1997) 34 (7): 912-925.
... layer 2.5 times thicker than at present. Numerous thermokarst-lake basins formed in the preceding millennia. Both the botanical and cryostratigraphic indices described are products of summer conditions. Previous reconstructions of early Holocene climate have not assessed the significance of paleocoastal...
Journal Article
Published: 01 January 1997
Canadian Journal of Earth Sciences (1997) 34 (1): 17-33.
Journal Article
Published: 01 January 1996
Canadian Journal of Earth Sciences (1996) 33 (1): 62-71.
... in the Holocene, probably due to widespread development of thermokarst lakes. At sites 8–12 km from the coast, the present subaerial conditions were established 0.5–1.5 ka through lake drainage and fluvial–deltaic deposition. Dans la région de Mackenzie–Beaufort, l'épaisseur maximale du pergélisol est de 750 m...
Journal Article
Published: 01 January 1996
Journal of Sedimentary Research (1996) 66 (1): 17-25.
... wedges, continued as sand wedges, were modified by thermokarst, and, in some cases, recommenced at a stratigraphically higher level as ice wedges. The sand-wedge and ice-wedge stages reflect environmental change from cold, arid, and windy proglacial conditions during Oxygen Isotope Stage 2 to warmer...