Australian National Marine Sediments Data Collection (MARS)

The national Marine Sediments collection is a scientific resource that includes information for samples collected within the Australian marine jurisdiction, including location, water depth, sampling method and sample descriptions. Data are provided from quantitative analyses of the samples, such as grain size, mud, sand, gravel and carbonate concentrations. Additional analyses on some samples include mineralogy, age determinations, geochemical properties, and physical attributes for down-core samples including bulk density, p-wave velocity, porosity and magnetic susceptibility. Images and graphics are presented, where available. MARS currently holds >40,000 sample and sub-sample records, and approximately 200,000 records describing the characteristics of these samples. New data are being added as they become available.

Value: Seabed sediment data is used to characterise the surface geology of the sea floor, important in resource exploration, marine zone management and understanding the physical environment.

Scope: Samples were collected from Australia's marine jurisdiction, including the Australian Antarctic Territory. >40,000 sample and sub-sample records, and approximately 200,000 records describing the characteristics of these samples.

国家海洋沉积物馆藏数据集（National Marine Sediments Collection）是一项科学资源，涵盖澳大利亚海洋管辖范围内采集的沉积物样品的相关信息，包括采样点位、水深、采样方法及样品描述。该数据集提供样品的定量分析数据，例如粒度、泥质、砂质、砾石及碳酸盐含量。部分样品还开展了额外分析项目，涵盖矿物学、定年、地球化学特性，以及岩心样品的多项物理属性，包括堆积密度、纵波速度、孔隙度与磁化率。若有可用数据，还将提供相关图像与图表。目前，MARS馆藏超过40000条样品及子样品记录，以及约200000条描述这些样品特征的记录。新数据一经获取便会陆续更新入库。

应用价值：海底沉积物数据可用于表征海底表层地质特征，在资源勘探、海洋区域管理以及海洋物理环境研究中具有重要意义。

覆盖范围：样品采集自澳大利亚海洋管辖范围，包括澳大利亚南极领地。馆藏包含超过40000条样品及子样品记录，以及约200000条描述这些样品特征的记录。