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Lateglacial to H olocene rapid crater infilling of a MIS 2 maar volcano ( W est‐ E ifel V olcanic F ield, G ermany): environmental history and geomorphological feedback mechanisms
Author(s) -
Houben Peter,
Kühl Norbert,
Dambeck Rainer,
Overath Jan
Publication year - 2013
Publication title -
boreas
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.95
H-Index - 74
eISSN - 1502-3885
pISSN - 0300-9483
DOI - 10.1111/bor.12012
Subject(s) - maar , geology , landform , impact crater , sedimentation , volcano , massif , sediment , geomorphology , varve , physical geography , macrofossil , vegetation (pathology) , holocene , geochemistry , paleontology , geography , physics , astronomy , medicine , pathology
We document the L ateglacial to H olocene sedimentation and vegetation history of a small, infilled crater landform in the W est‐ E ifel V olcanic F ield ( WEVF ; western G ermany). We analysed geomorphological landform change, sedimentological and geochronological data, pollen, and plant macrofossils of a 16‐m‐long sediment core from the E ichholz M aar ( EHM ). The EHM erupted between ∼20 and 15 ka ago ( MIS 2). Lacustrine siliclastic infilling was completed about 7500 years ago. L ateglacial rates of sedimentation are generally 2 to 5 times higher than in other maar lakes of the WEVF . Local factors, therefore, overprint the relative efficacy of the climate‐controlled variance of sedimentation rates at the L ateglacial/ H olocene transition. The predominance of local factors relates to inherent geomorphological process–response mechanisms that were triggered by the EHM eruption. Rapid crater infilling and its completion by the mid‐ H olocene are attributed to a combination of small storage capacity and geomorphological activity. A late B oreal interval of significant lake‐level fall can, however, be attributed to a period of continental‐scale climate change as recorded in other E uropean lacustrine settings. Our findings highlight the importance of utilizing geomorphological information to reveal the relative significance of local controls as opposed to climate control when investigating small‐sized lake settings with active sediment supply systems.

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