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Journal Article

Probengewinnung in Lockersedimenten

Authors
/persons/resource/ulrich

Harms,  Ulrich
Vol. 4, Issue 1 (2014), GFZ Journal 2014, System Erde : GFZ Journal, Deutsches GeoForschungsZentrum;
WB Scientific Drilling, Scientific Infrastructure and Plattforms, GFZ Publication Database, Deutsches GeoForschungsZentrum;

/persons/resource/ojemi

Mingram,  J.
Vol. 4, Issue 1 (2014), GFZ Journal 2014, System Erde : GFZ Journal, Deutsches GeoForschungsZentrum;
5.2 Climate Dynamics and Landscape Evolution, 5.0 Earth Surface Processes, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

/persons/resource/brademan

Brademann,  B.
Vol. 4, Issue 1 (2014), GFZ Journal 2014, System Erde : GFZ Journal, Deutsches GeoForschungsZentrum;
5.2 Climate Dynamics and Landscape Evolution, 5.0 Earth Surface Processes, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

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Fulltext (public)

GFZ_syserde.04.01.08.pdf
(Publisher version), 725KB

Supplementary Material (public)
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Citation

Harms, U., Mingram, J., Brademann, B. (2014): Probengewinnung in Lockersedimenten. - System Erde, 4, 1, 54-59.
https://doi.org/10.2312/GFZ.syserde.04.01.8


Cite as: https://gfzpublic.gfz-potsdam.de/pubman/item/item_423919
Abstract
Understanding the evolution of Earth´s climate and environment in the past plays a crucial role to understand its future. Recovery of sedimentary records deposited in lakes provides access to high-resolution long-term archives of this history. The techniques to unearth these archives have to be adapted in each environment to water depth, sediment length targeted at and consolidation of the strata to be recovered. Coring devices ranging from hand-held corer to a professional-operated drill rig mounted on a modular barge are therefore deployed to recover undisturbed sediments from lakes of different sizes. At the German Research Centre for Geosciences GFZ sediments from small lakes are retrieved mainly through deploying cable-guided piston coring tools from small rafts. Up to almost 100 m core length can be reached with just a small group of scientist. However, in large lakes such as the Dead Sea it is necessary to utilize a marine barge holding a wireline diamond coring drillrig operated by a qualified crew on a 24/7 base. Drillstring lengths of 1000 m and more in several hundred m water depths are retrieved with ICDPs Deep Lake Drilling System.