Processed CT image-based volume data of sediment core GeoB16310-3 from a coral mound in the Campeche Mound Province, Gulf of Mexico, MARIA S. MERIAN cruise MSM20/4

The sediment gravity core GeoB16310-3 was taken from a coral mound (Ixchel Mound) in the Campeche Mound Province, Gulf of Mexcio. Through scanning the core with CT (computer tomograph) following the methodology of Titschack et al. (2015; 2016), we analyse the coral content at high resolution (Volume %). This contributes to a multi-step analysis of the core with the aim to calculate the total carbon accumulation within the coral mound. Due to the large size of the data set, the record is presented at a 5cm running-average interval. The data points show the share (%) of cold-water corals within the sediment core, as well as the remaining matrix sediment fraction, which allows the quantification of coral carbonate accumulation further down the line.

沉积物重力柱GeoB16310-3采自墨西哥湾坎佩切丘域的伊切尔丘（Ixchel Mound）珊瑚丘。本研究遵循Titschack等人（2015；2016）提出的方法，利用计算机断层扫描（computer tomograph，CT）对该岩心进行扫描，以高分辨率（体积百分比）定量分析珊瑚组分占比。该项工作为该岩心的多步骤综合分析奠定基础，旨在计算该珊瑚丘内的总碳累积量。鉴于本数据集体量较大，本次数据以5cm滑动平均间隔进行展示。数据点分别呈现了沉积岩心中冷水珊瑚的占比（%）以及剩余基质沉积物的组分占比，可为后续量化珊瑚碳酸盐累积量提供支撑。