000004970 001__ 4970
000004970 005__ 20201020160345.0
000004970 0247_ $$2DOI$$a10.1016/j.quaint.2020.06.011
000004970 037__ $$aSCART-2020-0156
000004970 100__ $$aBeerten, Koen
000004970 245__ $$aElectron spin resonance (ESR), optically stimulated luminescence (OSL) and terrestrial cosmogenic radionuclide (TCN) dating of quartz from a Plio-Pleistocene sandy formation in the Campine area, NE Belgium
000004970 260__ $$c2020
000004970 520__ $$aThe chronostratigraphy of the typical quartz-rich white sands that are intensively quarried in the Campine area, northeastern Belgium, is poorly constrained. In the absence of biostratigraphical data, the age of the deposits, traditionally assigned to the Mol Formation, is thought to be late Pliocene based on sequence stratigraphical correlations (ca. 2.6–3.6 Ma). In an attempt to verify this age, we used a multi-dating method approach on two carefully selected samples in a palaeoseismological trench where the sediment was found to be vertically displaced by the Rauw fault. Three dating methods were used: electron spin resonance (ESR) dating, optically stimulated luminescence (OSL) dating and cosmogenic radionuclide (CRN) dating. In all three cases quartz was found to be a suitable dating material in terms of material properties. However, the ESR dating results based on Ti, Ti–Li and Al centres show strong internal inconsistencies, which can be explained by incomplete bleaching. As such, the youngest ESR ages obtained (ca. 5 Ma) are regarded as an absolute maximum age. In contrast, the OSL ages of ca. 1.5 Ma seem to underestimate the sequence stratigraphical age. The surface exposure CRN dating method using Bayesian inversion suggests that a palaeosurface developed around 1.55 ± 0.80 Ma, and eroded at a rate of ca. 15 m/Ma. Erosion probably accelerated after ca. 0.5–1 Ma and posterior to the last major movement along the Rauw fault.
000004970 594__ $$aNO
000004970 6531_ $$aESR dating
000004970 6531_ $$aOSL dating
000004970 6531_ $$aCRN dating
000004970 6531_ $$aBayesian inversion
000004970 6531_ $$a26Al
000004970 6531_ $$a10Be
000004970 6531_ $$aPleistocene
000004970 6531_ $$aErosion rate
000004970 700__ $$aVerbeeck, Koen
000004970 700__ $$aLaloy, Eric
000004970 700__ $$aVanacker, Veerle
000004970 700__ $$aVandenberghe, Dimitri
000004970 700__ $$aChristl, Marcus
000004970 700__ $$aDe Grave, Johan
000004970 700__ $$aWouters, Laurent
000004970 773__ $$c144-158$$pQuaternary International$$v556$$y2020
000004970 8560_ $$fmichel.vancamp@observatoire.be
000004970 85642 $$adx.doi.org/10.1016/j.quaint.2020.06.011
000004970 905__ $$apublished in
000004970 980__ $$aREFERD