Grain size, skeletal components and C14 measurements of sediments from the reef island Barrang Lompo, Spermonde Archipelago, Indonesia@en

The dataset is based on 50 soft carbonate sediment samples from the reef island Barrang Lompo in the Spermonde Archipelago, Sulawesi, SE Asia. The subsurface samples were obtained by percussion drilling at 5 coring locations on the island. From each coring location, 10 samples were retrieved in 1 m intervals, thus providing samples from a maximum depth of 10 m below surface at each site (1 m, 2 m, ..., 10 m) using percussion drilling (jackhammer: WACKER BH 23, Wacker Neuson SE, probe: direct push corer with internal liner (1m length & 46 mm diameter)). Samples were taken from lowest 10 cm of probe. Examples: BL1-1 is sample from location BL1 in depth interval 90-100 cm. BL4-7 is sample from location BL4 in depth interval 690-700 cm. Laboratory data was collected between 2019 and 2021. The provided dataset contains grain size (raw and processed data; using GRADISTAT by Blott & Pye, 2001), skeletal component analysis (counting of fragments, 500 per sample; raw data) and facies determination (based on grain size and skeletal composition) of each sample. Additionally, the dataset provides raw and calibrated radiocarbon ages from 20 selected samples (calibration curve by Heaton et al. 2020; marine reservoir correction by Southon et al. 2002; calibration tool OxCal v4.4 by Bronk Ramsey, 2009). For the radiocarbon analyses, picked and pooled foraminifera of the genus Calcarina were chosen. These 20 samples were furthermore classified in terms of abrasion (1=very good preserved,... 4=very poorly preserved), following suggestions by Fellowes et al. 2017. The calibrated ages cover the earlier to late Holocene (~7,000 to 2,000 years BP). The collected data provides information of reef-derived sedimentation in the Holocene in the Spermonde Archipelago. It provides insight into the ecological background and the origin of the skeletal sediments.本数据集基于东南亚苏拉威西省斯珀蒙德群岛巴朗隆波礁岛的50份软碳酸盐沉积物样品。研究通过冲击钻探在该岛的5个取芯点位采集地下样品：每个点位以1米间隔采集10份样品，因此可获取该点位地表以下最大深度10米的样品（1米、2米……10米）。所用冲击钻探设备包括风动凿岩机WACKER BH 23（制造商为Wacker Neuson SE）与带内衬的直推式取芯探头（长度1米，直径46毫米）。所有样品均取自探头最底端10厘米处。示例：BL1-1为BL1点位90-100厘米深度的样品，BL4-7为BL4点位690-700厘米深度的样品。实验室数据采集于2019至2021年。 本数据集包含每份样品的粒度数据（原始与处理后数据，采用Blott与Pye于2001年开发的GRADISTAT软件完成处理）、骨骼组分分析数据（每份样品计数500个碎屑，保留原始数据）以及岩相判定结果（基于粒度与骨骼组分完成判定）。此外，数据集还提供了20份精选样品的原始与校准后放射性碳年龄数据：校准曲线采用Heaton等人2020年的研究成果，海洋储层校正采用Southon等人2002年的方法，校准工具为Bronk Ramsey于2009年发布的OxCal v4.4软件。 针对放射性碳分析，研究选取了经挑选并混合的算盘虫属 (Calcarina) 有孔虫。依据Fellowes等人2017年的建议，这20份样品还按磨损程度进行了分类（1=保存极佳，……4=保存极差）。校准后的年龄覆盖全新世早晚期（约7000至2000年BP）。 本数据集所收录的数据可用于解析斯珀蒙德群岛全新世时期的礁源沉积作用，同时能够为骨骼沉积物的生态背景与成因提供研究视角。