Imperial College London
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DrDylanRood

Faculty of Engineering, Department of Earth Science & Engineering

Senior Lecturer
 
 
 
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Contact

 

+44 (0)20 7594 7461d.rood

 
 
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Location

 

4.43Royal School of MinesSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Bierman:2018:10.1017/qua.2018.6,
author = {Bierman, PR and Rood, DH and Shakun, JD and Portenga, EW and Corbett, LB},
doi = {10.1017/qua.2018.6},
journal = {Quaternary Research},
pages = {110--126},
title = {Directly dating postglacial Greenlandic land-surface emergence at high resolution using in situ 10Be},
url = {http://dx.doi.org/10.1017/qua.2018.6},
volume = {90},
year = {2018}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Postglacial emergence curves are used to infer mantle rheology, delimit ice extent, and test models of the solid Earth response to changing ice and water loads. Such curves are rarely produced by direct dating of land emergence; rather, most rely on the presence of radiocarbon-datable organic material and inferences made between the age of sedimentary deposits and landforms indicative of former sea level. Here, we demonstrate a new approach, 10Be dating, to determine rates of postglacial land emergence in two different settings. In southern Greenland (Narsarsuaq/Igaliku), we date directly the exposure, as relative sea level fell, of gravel beaches and rocky outcrops allowing determination of rapid, post–Younger Dryas emergence. In western Greenland (Kangerlussuaq), we constrain Holocene isostatic response by dating the sequential stripping of terrace sediment driven by land-surface uplift, relative sea-level fall, and resulting fluvial incision. The technique we employ provides high temporal and elevation resolution important for quantifying rapid emergence immediately after deglaciation and less rapid uplift during the middle Holocene. 10Be-constrained emergence curves can improve knowledge of relative sea-level change by dating land emergence along rocky coasts, at elevations and locations where radiocarbon-datable sediments are not present, and without the lag time needed for organic material to accumulate.
AU  - Bierman,PR
AU  - Rood,DH
AU  - Shakun,JD
AU  - Portenga,EW
AU  - Corbett,LB
DO  - 10.1017/qua.2018.6
EP  - 126
PY  - 2018///
SN  - 0033-5894
SP  - 110
TI  - Directly dating postglacial Greenlandic land-surface emergence at high resolution using in situ 10Be
T2  - Quaternary Research
UR  - http://dx.doi.org/10.1017/qua.2018.6
UR  - http://hdl.handle.net/10044/1/60605
VL  - 90
ER  -
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