Rock sample data collected on the Denman Marine Voyage of the RSV Nuyina, 2025

During voyage 3 of the RSV Nuyina during the 2025/2025 season to the region offshore the Denman glacier, rock samples were recovered to understand i) the continental geology of the Bruce Rise, ii) the onshore geology of the Denman region (from ice-rafted debris samples), and iii) the timing and mechanism driving formation of seamounts (extinct seafloor volcanoes).The voyage was colloquially known as the "Denman Marine Voyage", as it operated in the vicinity of the Denman Glacier. Rock samples were recovered from dredge (DXX), beam trawl (BT-Y), kasten core (KCXX), and multicore (MCXX) deployments during the voyage (where XX is the sequential deployment number, and Y is the sequential deployment letter).Folders in this dataset are named by their deployment type and number/letter. Within each folder there are i) descriptions of each rock/sediment sample, and ii) photographs of each sample. Descriptions are preliminary and were undertaken on board look at the hand samples, and sawn hand samples using a hand lens. Dredged rocks were described and photographed individually. For the case of sawn rock saws, photographs of the cut surfaces both dry and wet were taken. Beam trawled rocks were sorted into groupings and a description and photographed in these groups. Samples from kasten cores and multicores were described individually. Photographs of the kasten core and multicore rocks sometimes contain multiple different samples per photograph.

在2025/2025航次期间，努伊纳号科考船（RSV Nuyina）执行第3次科考任务，前往丹曼冰川（Denman Glacier）近海海域，本次岩石采样旨在达成三项研究目标：一是解析布鲁斯海隆（Bruce Rise）的大陆地质特征，二是通过冰筏碎屑（ice-rafted debris）样本探究丹曼区域的陆上地质情况，三是阐明海山（seamounts，即休眠海底火山（extinct seafloor volcanoes））的形成时间与驱动机制。本次航次因作业区域紧邻丹曼冰川，被俗称为"丹曼海洋航次"。本航次通过拖网采样器（dredge，DXX）、桁拖网（beam trawl，BT-Y）、箱式岩心（kasten core，KCXX）与多管岩心（multicore，MCXX）四种采样方式获取岩石样本，其中XX为作业序列编号，Y为作业序列字母编号。本数据集的文件夹以采样作业类型及对应编号/字母命名。每个文件夹内包含两类内容：一是各岩石/沉积物样本的描述文档，二是各样本的实拍照片。样本描述为初步成果，均由科考人员在船上通过手持放大镜（hand lens）对原生手标本与锯切手标本进行观测后完成。拖网采集的岩石将单独开展描述与拍摄工作。对于经锯切的岩样，需分别拍摄其干切与湿切切面的照片。桁拖网采集的岩石将按类别分组，对各组进行统一描述并拍摄分组照片。箱式岩心与多管岩心采集的样本则单独进行描述与拍摄。箱式岩心及多管岩心样本的实拍照片中，单张图片有时会包含多个不同的岩石样品。