Parent record: Datasets relating to core GC-11, located in the Capricorn Channel at a depth of 502 mbsl

Core GC11 (23o23' 07S 153o22' 00E) was collected from the Capricorn Channel at a depth of 502 mbsl (metres below sea level). By investigating the properties and components of this core we are able to reveal some information about this hemi-pelagic sedimentary environment over the last glacial / interglacial cycle. Information obtained or inferred from the core include the isotopic composition of oxygen and carbon through time, the percentage of grainsize fractions throughout the core and the percentage of carbonate material in each sample. XRD analyses were also run on several samples from each core to determine changes in the carbonate mineralogy and terrestrial influx, which provided further palaeoclimatic information.

GC11岩芯（Core GC11，坐标23°23′07″S，153°22′00″E）采集自摩羯水道，采样水深为502 mbsl（metres below sea level，海平面以下米数）。通过对该岩芯的物性特征与组分开展研究，我们得以揭示末次冰期-间冰期旋回以来该半远洋沉积环境（hemi-pelagic sedimentary environment）的相关信息。从该岩芯中获取或推演得到的信息包括：不同时间序列下的氧、碳同位素组成，岩芯全程的粒度组分占比，以及各单样中的碳酸盐物质占比。此外，本研究还对该岩芯的多个样品开展了X射线衍射分析（X-ray diffraction，XRD），以明确碳酸盐矿物组成与陆源输入的变化，进而获取更多古气候（palaeoclimatic）相关信息。