Details
| Originalsprache | Englisch |
|---|---|
| Seiten (von - bis) | 186-194 |
| Seitenumfang | 9 |
| Fachzeitschrift | TERRA NOVA |
| Jahrgang | 26 |
| Ausgabenummer | 3 |
| Publikationsstatus | Veröffentlicht - Juni 2014 |
Abstract
Glacial denudation can significantly perturb terrestrial cosmogenic nuclide depth profiles and, if this is not corrected for, derived apparent denudation rates will overestimate the actual denudation rates. Here we determine how much 10Be-derived denudation rates - calculated under the assumption of steady state - deviate from actual denudation rates as a function of three parameters: (1) the total amount of glacial denudation, (2) the post-glacial denudation rate and (3) the time elapsed since deglaciation. We provide correction lines for the full parameter space explored (glacial denudation: 0.01-100 m; post-glacial denudation rate: 1-1000 mm/ka; deglaciation: 1-100 ka before present), to evaluate and, if necessary, correct denudation rates for the impact of glacial denudation. Applied to 10Be-derived catchment-averaged denudation rates for formerly glaciated catchments in the Black Forest, Germany, we find that uncorrected denudation rates overestimate actual rates by up to a factor of three.
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in: TERRA NOVA, Jahrgang 26, Nr. 3, 06.2014, S. 186-194.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Quantifying the impact of former glaciation on catchment-wide denudation rates derived from cosmogenic 10Be
AU - Glotzbach, Christoph
AU - Röttjer, Markus
AU - Hampel, Andrea
AU - Hetzel, Ralf
AU - Kubik, Peter W.
PY - 2014/6
Y1 - 2014/6
N2 - Glacial denudation can significantly perturb terrestrial cosmogenic nuclide depth profiles and, if this is not corrected for, derived apparent denudation rates will overestimate the actual denudation rates. Here we determine how much 10Be-derived denudation rates - calculated under the assumption of steady state - deviate from actual denudation rates as a function of three parameters: (1) the total amount of glacial denudation, (2) the post-glacial denudation rate and (3) the time elapsed since deglaciation. We provide correction lines for the full parameter space explored (glacial denudation: 0.01-100 m; post-glacial denudation rate: 1-1000 mm/ka; deglaciation: 1-100 ka before present), to evaluate and, if necessary, correct denudation rates for the impact of glacial denudation. Applied to 10Be-derived catchment-averaged denudation rates for formerly glaciated catchments in the Black Forest, Germany, we find that uncorrected denudation rates overestimate actual rates by up to a factor of three.
AB - Glacial denudation can significantly perturb terrestrial cosmogenic nuclide depth profiles and, if this is not corrected for, derived apparent denudation rates will overestimate the actual denudation rates. Here we determine how much 10Be-derived denudation rates - calculated under the assumption of steady state - deviate from actual denudation rates as a function of three parameters: (1) the total amount of glacial denudation, (2) the post-glacial denudation rate and (3) the time elapsed since deglaciation. We provide correction lines for the full parameter space explored (glacial denudation: 0.01-100 m; post-glacial denudation rate: 1-1000 mm/ka; deglaciation: 1-100 ka before present), to evaluate and, if necessary, correct denudation rates for the impact of glacial denudation. Applied to 10Be-derived catchment-averaged denudation rates for formerly glaciated catchments in the Black Forest, Germany, we find that uncorrected denudation rates overestimate actual rates by up to a factor of three.
UR - http://www.scopus.com/inward/record.url?scp=84898777080&partnerID=8YFLogxK
U2 - 10.1111/ter.12085
DO - 10.1111/ter.12085
M3 - Article
AN - SCOPUS:84898777080
VL - 26
SP - 186
EP - 194
JO - TERRA NOVA
JF - TERRA NOVA
SN - 0954-4879
IS - 3
ER -