Chronology, (bio-)geochemical, sedimentary, stable isotope, pollen, and tephrochronologic data of Lake Ohrid's DEEP site sequence (5045-1) between 447.12 m and the sediment surface in concert with transient climate simulations@en

This dataset presents the chronological framework, (bio-)geochemical, mineralogic stable isotope, pollen, and tephrochronologic data of the upper 448 m of the DEEP site (5045-1) sediment sequence recovered from the central part of Lake Ohrid (Macedonia, Albania) under the umbrella of the International Continental Scientific Drilling Program (ICDP) and the project Scientific Collaboration on Past Speciation Conditions in Lake Ohrid (SCOPSCO). The investigated interval comprises fine-grained muds with intercalated tephra layers and mass movement deposits of mostly less than 5 cm thickness. Two tephra layers of thicknesses more than 5 cm were excluded prior to age-depth modelling, which is based on tephrostratigraphy, tephrochronology, magnetostratigraphy, and tuning of biogeochemical proxy data versus local orbital parameters. (Bio-)geochemical analyses comprise X-Ray fluorescence scanning at 2.5 mm resolution (Potassium and Calcium intensities), and total inorganic carbon (TOC) and total organic carbon (TOC) determinations at 16 cm resolution. The relative abundance of quartz minerals (Quartz peak area, 16 cm resolution) was detected by means of Fourier Transform Infrared Spectrometry (FTIRS). Oxygen and carbon stable isotope were analysed on (interglacial) sediments where endogenic calcite crystals were found to be abundant. Pollen data presented herein at 64 cm resolution comprise a sub-dataset of the total pollen counts and presents relative percentages of arboreal taxa minus pine (AP-pine), and of deciduous oaks, respectively. Tephrochronologic data comprises geochemical fingerprint analyses of individual glass shards found in the sediments of Lake Ohrid, and a new Ar/Ar age for tephra V5 from the Montalbano Jonico section. […]本数据集涵盖由国际大陆科学钻探计划（International Continental Scientific Drilling Program, ICDP）与奥赫里德湖古物种形成条件科学合作项目（Scientific Collaboration on Past Speciation Conditions in Lake Ohrid, SCOPSCO）牵头实施的钻探工作所获取的、位于马其顿与阿尔巴尼亚境内的奥赫里德湖中部DEEP钻孔（5045-1）448米上部沉积序列的年代框架、（生物）地球化学、矿物学稳定同位素、孢粉及火山碎屑年代学数据。 本次研究的沉积层段以细粒泥质沉积物为主，夹有厚度多小于5厘米的火山碎屑层与块体搬运沉积层。在基于火山碎屑地层学、火山碎屑年代学、磁性地层学以及生物地球化学代用指标与当地轨道参数调谐构建年龄-深度模型前，两层厚度超过5厘米的火山碎屑层被予以排除。 （生物）地球化学分析包括2.5毫米分辨率下的X射线荧光扫描（检测钾、钙元素强度），以及16厘米分辨率下的总无机碳（total inorganic carbon, TIC）与总有机碳（total organic carbon, TOC）测定。石英矿物的相对丰度（以石英峰面积计，分辨率为16厘米）通过傅里叶变换红外光谱法（Fourier Transform Infrared Spectrometry, FTIRS）完成测定。 氧、碳稳定同位素分析针对内生方解石晶体富集的（间冰期）沉积样品进行。本文呈现的64厘米分辨率孢粉数据为总孢粉计数的子数据集，分别包含去除松属植物的木本植物类群（AP-pine）以及落叶栎类的相对百分含量。 火山碎屑年代学数据包括对奥赫里德湖沉积物中发现的单颗玻璃碎屑的地球化学指纹分析，以及来自蒙塔尔巴诺约尼科剖面的火山碎屑V5的全新氩-氩（Ar/Ar）定年结果。……