Skeletal components 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). Laboratory data was collected between 2019 and 2021. The provided dataset contains skeletal component analysis (counting of fragments, 500 per sample; raw data). Microscope analysis of 200 components from fractions >2 mm and 2-1 mm and 100 components from fraction 1-0.5 mm. 12 different calcifying organisms were distinguished, of which 10 were identified in the present dataset. Non-identifiable grains were counted as bioclasts and not added to the sum of 200 and 100, respectively.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.本数据集以东南亚苏拉威西（Sulawesi）斯佩蒙德群岛（Spermonde Archipelago）礁岛巴朗隆波（Barrang Lompo）采集的50份软碳酸盐沉积物样品为基础构建。该岛共设置5个取芯点位，通过冲击钻探获取地下沉积物样品。每个取芯点位均以1米为间隔采集10份样品，因此各点位可获取地表以下最大深度10米的沉积物样品（采样深度依次为1米、2米……10米）。实验室分析数据采集于2019年至2021年期间。本数据集包含骨骼组分分析内容（统计碎屑数量，每份样品统计500个碎屑；附原始数据）。针对3个沉积物粒级开展显微镜分析：>2毫米、2-1毫米粒级各统计200个组分，1-0.5毫米粒级统计100个组分。本次研究共区分出12种钙化生物，本数据集已鉴定其中10种。无法鉴定的颗粒被归为生物碎屑，且不计入前述200个与100个组分的统计总和中。本数据集可为斯佩蒙德群岛全新世（Holocene）礁源沉积作用提供研究资料，同时可揭示骨骼沉积物的生态背景与物质来源。