Please use this identifier to cite or link to this item: http://dlib.scu.ac.ir/handle/1956/9748
Title: Drumlin relief
subject: glacial geomorphology;drumlins;morphometry;drumlin relief;VDP::Matematikk og naturvitenskap: 400::Geofag: 450::Kvartærgeologi, glasiologi: 465;VDP::Matematikk og naturvitenskap: 400::Geofag: 450::Sedimentologi: 456;VDP::Mathematics and natural scienses: 400::Geosciences: 450::Quaternary geology, glaciology: 465;VDP::Mathematics and natural scienses: 400::Geosciences: 450::Sedimentology: 456
Publisher: Elsevier
Description: Drumlin relief is a key parameter for testing predictions of models of drumlin formation. Although this metric is commonly described in textbooks as being of the order of a fewtens ofmetres, our critical review of the literature suggests an average value of about 13 m, but withmuch uncertainty. Hereweinvestigate a large sample of drumlins (25,848) mapped from a high resolution digital terrain model of Britain, which allowed the identification of extremely shallow drumlins. Results indicate that most drumlins have a relief between 0.5 and 40m (with a surprisingly low average value of only 7.1 m) a mode of 3.5–4 m, and with 41% of all drumlins characterized by a relief < 5 m. Drumlin relief is found to never exceed 7% of the width and is positively correlated with this parameter, possibly indicating that drumlins need a large base to stand against the flow of the ice. Drumlin relief is also positively correlated with the length, which shows that drumlins do not grow in length by redistributing sediments from their summits to their downflow (lee) end, as previously hypothesised.
publishedVersion
URI: https://deepblue.lib.umich.edu/handle/1956/9748
More Information: 0169-555X
http://hdl.handle.net/1956/9748
951704
10.1016/j.geomorph.2012.02.023
Appears in Collections:Department of Earth Science

Files in This Item:
Click on the URI links for accessing contents.
Title: Drumlin relief
subject: glacial geomorphology;drumlins;morphometry;drumlin relief;VDP::Matematikk og naturvitenskap: 400::Geofag: 450::Kvartærgeologi, glasiologi: 465;VDP::Matematikk og naturvitenskap: 400::Geofag: 450::Sedimentologi: 456;VDP::Mathematics and natural scienses: 400::Geosciences: 450::Quaternary geology, glaciology: 465;VDP::Mathematics and natural scienses: 400::Geosciences: 450::Sedimentology: 456
Publisher: Elsevier
Description: Drumlin relief is a key parameter for testing predictions of models of drumlin formation. Although this metric is commonly described in textbooks as being of the order of a fewtens ofmetres, our critical review of the literature suggests an average value of about 13 m, but withmuch uncertainty. Hereweinvestigate a large sample of drumlins (25,848) mapped from a high resolution digital terrain model of Britain, which allowed the identification of extremely shallow drumlins. Results indicate that most drumlins have a relief between 0.5 and 40m (with a surprisingly low average value of only 7.1 m) a mode of 3.5–4 m, and with 41% of all drumlins characterized by a relief < 5 m. Drumlin relief is found to never exceed 7% of the width and is positively correlated with this parameter, possibly indicating that drumlins need a large base to stand against the flow of the ice. Drumlin relief is also positively correlated with the length, which shows that drumlins do not grow in length by redistributing sediments from their summits to their downflow (lee) end, as previously hypothesised.
publishedVersion
URI: https://deepblue.lib.umich.edu/handle/1956/9748
More Information: 0169-555X
http://hdl.handle.net/1956/9748
951704
10.1016/j.geomorph.2012.02.023
Appears in Collections:Department of Earth Science

Files in This Item:
Click on the URI links for accessing contents.
Title: Drumlin relief
subject: glacial geomorphology;drumlins;morphometry;drumlin relief;VDP::Matematikk og naturvitenskap: 400::Geofag: 450::Kvartærgeologi, glasiologi: 465;VDP::Matematikk og naturvitenskap: 400::Geofag: 450::Sedimentologi: 456;VDP::Mathematics and natural scienses: 400::Geosciences: 450::Quaternary geology, glaciology: 465;VDP::Mathematics and natural scienses: 400::Geosciences: 450::Sedimentology: 456
Publisher: Elsevier
Description: Drumlin relief is a key parameter for testing predictions of models of drumlin formation. Although this metric is commonly described in textbooks as being of the order of a fewtens ofmetres, our critical review of the literature suggests an average value of about 13 m, but withmuch uncertainty. Hereweinvestigate a large sample of drumlins (25,848) mapped from a high resolution digital terrain model of Britain, which allowed the identification of extremely shallow drumlins. Results indicate that most drumlins have a relief between 0.5 and 40m (with a surprisingly low average value of only 7.1 m) a mode of 3.5–4 m, and with 41% of all drumlins characterized by a relief < 5 m. Drumlin relief is found to never exceed 7% of the width and is positively correlated with this parameter, possibly indicating that drumlins need a large base to stand against the flow of the ice. Drumlin relief is also positively correlated with the length, which shows that drumlins do not grow in length by redistributing sediments from their summits to their downflow (lee) end, as previously hypothesised.
publishedVersion
URI: https://deepblue.lib.umich.edu/handle/1956/9748
More Information: 0169-555X
http://hdl.handle.net/1956/9748
951704
10.1016/j.geomorph.2012.02.023
Appears in Collections:Department of Earth Science

Files in This Item:
Click on the URI links for accessing contents.