Holocene sediments from a coastal lake on northern Devon Island, Nunavut, Canada

Colin John Courtney-Mustaphi; Konrad Gajewski

doi:10.1139/cjes-2012-0143

Holocene sediments from a coastal lake on northern Devon Island, Nunavut, Canada

Colin John Courtney-Mustaphi, Konrad Gajewski

Environment and Geography

Research output: Contribution to journal › Article › peer-review

Abstract

Sediment cores from Lake DV09, northern Devon Island, Nunavut, Canada (75°34′34″N, 89°18′55″W), were studied to reconstruct the lake ontogeny through analysis and interpretation of the sediment stratigraphy. The lake was uplifted from marine inundation ∼7600 cal BP. After a millennium of rapid sediment accumulation, which coincided with the Holocene Thermal Maximum in the region, accumulation rates decreased over the past 6000 years as the Arctic became colder. This resulted in the deposition of very fine laminae that were interpreted as varves. The uppermost laminated sediments provided a ∼1600 year history of annual sediment transport and deposition into the lake. During periods of warmer temperatures, such as between 6000 and 7500 cal BP and during the Medieval Climate Anomaly (∼950–1300 CE; CE, Christian Era), hydroclimatic and permafrost slope processes increased sedimentation rates into the basin.

Original language	English
Pages (from-to)	564-575
Journal	Canadian Journal of Earth Sciences
Volume	50
Issue number	5
DOIs	https://doi.org/10.1139/cjes-2012-0143
Publication status	Published - 2013

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10.1139/cjes-2012-0143

http://www.nrcresearchpress.com/doi/abs/10.1139/cjes-2012-0143#.VsMdmPmLTIU

Cite this

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title = "Holocene sediments from a coastal lake on northern Devon Island, Nunavut, Canada",

abstract = "Sediment cores from Lake DV09, northern Devon Island, Nunavut, Canada (75°34′34″N, 89°18′55″W), were studied to reconstruct the lake ontogeny through analysis and interpretation of the sediment stratigraphy. The lake was uplifted from marine inundation ∼7600 cal BP. After a millennium of rapid sediment accumulation, which coincided with the Holocene Thermal Maximum in the region, accumulation rates decreased over the past 6000 years as the Arctic became colder. This resulted in the deposition of very fine laminae that were interpreted as varves. The uppermost laminated sediments provided a ∼1600 year history of annual sediment transport and deposition into the lake. During periods of warmer temperatures, such as between 6000 and 7500 cal BP and during the Medieval Climate Anomaly (∼950–1300 CE; CE, Christian Era), hydroclimatic and permafrost slope processes increased sedimentation rates into the basin.",

author = "Courtney-Mustaphi, {Colin John} and Konrad Gajewski",

year = "2013",

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T1 - Holocene sediments from a coastal lake on northern Devon Island, Nunavut, Canada

AU - Courtney-Mustaphi, Colin John

AU - Gajewski, Konrad

PY - 2013

Y1 - 2013

N2 - Sediment cores from Lake DV09, northern Devon Island, Nunavut, Canada (75°34′34″N, 89°18′55″W), were studied to reconstruct the lake ontogeny through analysis and interpretation of the sediment stratigraphy. The lake was uplifted from marine inundation ∼7600 cal BP. After a millennium of rapid sediment accumulation, which coincided with the Holocene Thermal Maximum in the region, accumulation rates decreased over the past 6000 years as the Arctic became colder. This resulted in the deposition of very fine laminae that were interpreted as varves. The uppermost laminated sediments provided a ∼1600 year history of annual sediment transport and deposition into the lake. During periods of warmer temperatures, such as between 6000 and 7500 cal BP and during the Medieval Climate Anomaly (∼950–1300 CE; CE, Christian Era), hydroclimatic and permafrost slope processes increased sedimentation rates into the basin.

AB - Sediment cores from Lake DV09, northern Devon Island, Nunavut, Canada (75°34′34″N, 89°18′55″W), were studied to reconstruct the lake ontogeny through analysis and interpretation of the sediment stratigraphy. The lake was uplifted from marine inundation ∼7600 cal BP. After a millennium of rapid sediment accumulation, which coincided with the Holocene Thermal Maximum in the region, accumulation rates decreased over the past 6000 years as the Arctic became colder. This resulted in the deposition of very fine laminae that were interpreted as varves. The uppermost laminated sediments provided a ∼1600 year history of annual sediment transport and deposition into the lake. During periods of warmer temperatures, such as between 6000 and 7500 cal BP and during the Medieval Climate Anomaly (∼950–1300 CE; CE, Christian Era), hydroclimatic and permafrost slope processes increased sedimentation rates into the basin.

U2 - 10.1139/cjes-2012-0143

DO - 10.1139/cjes-2012-0143

M3 - Article

VL - 50

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EP - 575

JO - Canadian Journal of Earth Sciences

JF - Canadian Journal of Earth Sciences

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