Ignition residue, element (Br, Si, Ca) and humification results for a mid-late Holocene core from Bullsmouth Bog, Ireland@en

Storminess reconstructions can be derived from coastal peatlands using a number of methods - including the measurement of windblown sand preserved within the cores. Here we present a decadal-resolution record of storminess covering the last 6.4 thousand years, based on analysis of a core taken from Bullsmouth Bog on Achill Island, Ireland, in 2019. A 4 m long peat core was sampled using a Russian corer from 53°59.791' ⁰N and 9°56.352' ⁰W. Storminess is reconstructed by variations in the minerogenic content (aeolian sand deposits), measured using the ignition residue (IR). We explore whether elements measured by an XRF core scanner (Br, Si, Ca) can be used to reconstruct past storminess by comparison with the IR record and measurements of peat humification. Chronological constraints were provided by AMS radiocarbon dating of 6 samples along the core.风暴活动历史可通过多种方法从海岸泥炭地中重建，其中包括对岩芯内保存的风成砂进行测定。本研究基于2019年从爱尔兰阿奇尔岛（Achill Island）布尔茅斯沼泽（Bullsmouth Bog）采集的泥炭岩芯分析结果，构建了覆盖过去6.4千年、十年际分辨率的风暴活动记录。研究团队采用俄罗斯采芯器（Russian corer），从北纬53°59.791'、西经9°56.352'处采集了一根长4米的泥炭岩芯。本研究通过点火残渣（ignition residue, IR）法测定的矿质碎屑含量（风成砂沉积）变化来重建风暴活动历史。此外，我们通过将XRF岩芯扫描仪（XRF core scanner）测定的Br、Si、Ca元素数据与点火残渣记录及泥炭腐殖化度测量结果进行对比，探究上述元素能否用于重建古风暴活动历史。研究团队对该岩芯中的6个样品开展了加速器质谱（AMS）放射性碳定年，为该序列提供了可靠的年代约束。