The loss on ignition analysis data (short sediment cores from the Arcona, Bornholm, and Gdansk Basins of the Baltic Sea)@en

The data for the paleoenvironmental study was obtained on the basis of complex analysis of short sediment cores retrieved in the Arcona, Bornholm, and Gdansk Basins of the Baltic Sea. The cores were collected using a short gravity sediment corer (Niemistö type). The upper layers (0-5 cm) of sediment cores were stained with the 80% ethanol solution of rose Bengal following the protocol (Schönfeld et al., 2012) and were used only for the microfossil analysis. The rests of the cores (below the 5 cm) were continuously sampled with the 1 cm step and were used for the loss on ignition (LOI), microfossil, X-ray fluorescence (XRF), and grain-size analyzes. For the LOI analysis the 1 g of dried sediments was burned at 550 °C for ~ 4 hours. The organic matter content was determined as resulting weight difference in % (Binczewska et al., 2018).本古环境研究所用数据，源自对波罗的海阿尔科纳（Arcona）盆地、博恩霍尔姆（Bornholm）盆地与格但斯克（Gdansk）盆地采集的短沉积岩芯开展的综合分析。该批岩芯采用Niemistö型短重力沉积物取样器采集。依据Schönfeld等（2012）的实验规程，使用孟加拉玫瑰红的80%乙醇溶液对岩芯上层（0~5 cm）进行染色，该层样品仅用于微体古生物分析。岩芯5 cm以下的剩余部分以1 cm间隔连续取样，用于烧失量（loss on ignition, LOI）、微体古生物、X射线荧光（X-ray fluorescence, XRF）与粒度分析。烧失量分析时，称取1 g干燥沉积物于550 ℃下灼烧约4小时，有机质含量以灼烧前后的重量百分比差值计算（Binczewska等，2018）。