Pliocene–Pleistocene megafloods as a mechanism for Greenlandic megacanyon formation

Research output: Contribution to journal › Journal article › Research › peer-review

Standard

Pliocene–Pleistocene megafloods as a mechanism for Greenlandic megacanyon formation. / Keisling, B.A.; Nielsen, Lisbeth Tangaa; Hvidberg, Christine Schøtt; Nuterman, Roman; DeConto, Robert M.

In: Geology, Vol. 48, No. 7, 29.04.2020, p. 737-741.

Research output: Contribution to journal › Journal article › Research › peer-review

Harvard

Keisling, BA, Nielsen, LT, Hvidberg, CS, Nuterman, R & DeConto, RM 2020, 'Pliocene–Pleistocene megafloods as a mechanism for Greenlandic megacanyon formation', Geology, vol. 48, no. 7, pp. 737-741. https://doi.org/10.1130/G47253.1

APA

Keisling, B. A., Nielsen, L. T., Hvidberg, C. S., Nuterman, R., & DeConto, R. M. (2020). Pliocene–Pleistocene megafloods as a mechanism for Greenlandic megacanyon formation. Geology, 48(7), 737-741. https://doi.org/10.1130/G47253.1

Vancouver

Keisling BA, Nielsen LT, Hvidberg CS, Nuterman R, DeConto RM. Pliocene–Pleistocene megafloods as a mechanism for Greenlandic megacanyon formation. Geology. 2020 Apr 29;48(7):737-741. https://doi.org/10.1130/G47253.1

Author

Keisling, B.A. ; Nielsen, Lisbeth Tangaa ; Hvidberg, Christine Schøtt ; Nuterman, Roman ; DeConto, Robert M. / Pliocene–Pleistocene megafloods as a mechanism for Greenlandic megacanyon formation. In: Geology. 2020 ; Vol. 48, No. 7. pp. 737-741.

Bibtex

@article{c33be04ef3044c9ea0acdb8847dab834,
title = "Pliocene–Pleistocene megafloods as a mechanism for Greenlandic megacanyon formation",
abstract = "The Greenland ice sheet (GrIS) covers a complex network of canyons thought to be preglacial and fluvial in origin, implying that these features have influenced the ice sheet since its inception. The largest of these canyons terminates in northwest Greenland at the outlet of the Petermann Glacier. Yet, the genesis of this canyon, and similar features in northern Greenland, remains unknown. Here, we present numerical model simulations of early GrIS history and show that interactions among climate, the growing ice sheet, and preexisting topography may have contributed to the excavation of the canyon via repeated catastrophic outburst floods. Our results have implications for interpreting sedimentary and geomorphic features beneath the GrIS and around its marine margins, and they document a novel mechanism for landscape erosion in Greenland.",
author = "B.A. Keisling and Nielsen, {Lisbeth Tangaa} and Hvidberg, {Christine Sch{\o}tt} and Roman Nuterman and DeConto, {Robert M.}",
year = "2020",
month = apr,
day = "29",
doi = "10.1130/G47253.1",
language = "English",
volume = "48",
pages = "737--741",
journal = "Geology",
issn = "0091-7613",
publisher = "GeoScienceWorld",
number = "7",

}

RIS

TY - JOUR

T1 - Pliocene–Pleistocene megafloods as a mechanism for Greenlandic megacanyon formation

AU - Keisling, B.A.

AU - Nielsen, Lisbeth Tangaa

AU - Hvidberg, Christine Schøtt

AU - Nuterman, Roman

AU - DeConto, Robert M.

PY - 2020/4/29

Y1 - 2020/4/29

N2 - The Greenland ice sheet (GrIS) covers a complex network of canyons thought to be preglacial and fluvial in origin, implying that these features have influenced the ice sheet since its inception. The largest of these canyons terminates in northwest Greenland at the outlet of the Petermann Glacier. Yet, the genesis of this canyon, and similar features in northern Greenland, remains unknown. Here, we present numerical model simulations of early GrIS history and show that interactions among climate, the growing ice sheet, and preexisting topography may have contributed to the excavation of the canyon via repeated catastrophic outburst floods. Our results have implications for interpreting sedimentary and geomorphic features beneath the GrIS and around its marine margins, and they document a novel mechanism for landscape erosion in Greenland.

AB - The Greenland ice sheet (GrIS) covers a complex network of canyons thought to be preglacial and fluvial in origin, implying that these features have influenced the ice sheet since its inception. The largest of these canyons terminates in northwest Greenland at the outlet of the Petermann Glacier. Yet, the genesis of this canyon, and similar features in northern Greenland, remains unknown. Here, we present numerical model simulations of early GrIS history and show that interactions among climate, the growing ice sheet, and preexisting topography may have contributed to the excavation of the canyon via repeated catastrophic outburst floods. Our results have implications for interpreting sedimentary and geomorphic features beneath the GrIS and around its marine margins, and they document a novel mechanism for landscape erosion in Greenland.

U2 - 10.1130/G47253.1

DO - 10.1130/G47253.1

M3 - Journal article

VL - 48

SP - 737

EP - 741

JO - Geology

JF - Geology

SN - 0091-7613

IS - 7

ER -

ID: 242831708