Pitfalls in the AMS radiocarbon-dating of terrestrial macrofossils

Reply: Fluvial incision and channel downcutting as a response to Late-glacial and Early Holocene climate change: the lower reach of the River Meuse (Maas) The Netherlands

“…Thus, we see no reason to reject any of them and argue that they should be seen as relevant, complementary and independent dates. We agree that AMS measurements might shed more light on the local chronostratigraphy, on condition that sample preparation and measurement are performed according to Wohlfahrt et al (1998).…”

Lateglacial/Holocene environmental changes in the Mediterranean Alps inferred from lacustrine sediments

“…Fifteen radiocarbon dates on terrestrial plant macroremains (exclusively from 430 to 270 cm and from 47 to 37 cm) and ten on bulk organic matter of the size of pollen (pollenconcentrated organic matter) have been retrieved from the continuous sediment accumulation. All macroremain samples contained more than 1 mg of carbon and are therefore probably not contaminated by younger carbon (Wohlfarth et al, 1998). In addition we report from Petersen et al 2014(1) four 14 C dates of unknown organic debris sampled from reworked deposits (homogenite-type) giving a maximal age for the deposit and (2) a 210 Pb-derived accumulation rate of 0.7 mm a À1 covering the interval from 9 to 0 cm.…”

High-resolution environmental reconstruction in SW Peloponnese, Greece, covering the last c . 6000 years: Evidence from Agios Floros fen, Messenian plain

“…It should be mentioned that the dated seeds at these depths belong to the thermophilous helophyte species Cladium mariscus , which can grow in different parts of lakes, mainly in the littoral zones and tolerate periods of floods (Gałka and Tobolski, 2012). Other sources of those uncertainties might be related to the contamination of the samples by older and reworked material as well as movement of dissolved organic carbon in the soil (Nilsson et al, 2001; Turney et al, 2000; Wohlfarth et al, 1998).…”