Sediment Sample and Core Database

The data contained in this database corresponds to the radiochemical and chemical analysis for the sediment profile samples collected by AIMS' biogeochemistry team between 1988 and 2005. The collection spans different regions within Australia, Malaysia, Timor Leste and Timor Sea region, Papua New Guinea, China, Thailand and Indonesia. Samples were collected from offshore, coastal and river areas, using a variety of methods over the timeframe.The data has contributed to studies in sediment mass balance in rivers, estuaries, deep water shelf and slopes to determine the environmental impact in tropical systems, nutrient budgets and dynamics. Research in both organic and inorganic carbon biomarkers and fluxes have developed carbon budget and carbon cycling dynamics for marine environments. The databases includes sediment descriptions of samples, measurements for geochemical mass balance, and analysis for trace elements including Aluminium, Carbon and Nitrogen and calculated ratios of Aluminium/Calcium, Carbonate Carbon and in some locations Arsenic and suspended sediment. Radiochemical analysis of some sediment core samples and surface water samples for natural isotopes of radium.Sampling equipment included Kasten Corer, Piston/Gravity Corer, Box Corer, Smith Macintyre Grab, Van Veen Grab, hand collection SCUBA, soil profile and Suspended Sediment samples, and sediment traps.

本数据库收录的数据，对应澳大利亚海洋科学研究所（AIMS）生物地球化学团队于1988年至2005年间采集的沉积物剖面样品的放射化学与化学分析结果。本次采样覆盖澳大利亚、马来西亚、东帝汶及帝汶海区域、巴布亚新几内亚、中国、泰国与印度尼西亚境内的多个区域。在此研究周期内，团队采用多种采样方法，从近海、海岸与河流区域采集了上述样品。该数据集已支撑多项研究，包括针对河流、河口、深水陆架与陆坡的沉积物质量平衡研究，以解析热带生态系统的环境影响、营养盐收支与动态过程。针对有机与无机碳生物标志物及碳通量的相关研究，已阐明了海洋环境的碳收支与碳循环动态机制。本数据库包含样品的沉积物描述信息、地球化学质量平衡测量数据，以及铝、碳、氮等微量元素的分析结果，同时涵盖铝/钙比值、碳酸盐碳的计算结果，部分采样点还包含砷与悬浮沉积物的相关数据。部分沉积物柱状样与地表水样品还开展了镭天然同位素的放射化学分析。所用采样设备包括凯斯顿采芯器（Kasten Corer）、活塞/重力采芯器（Piston/Gravity Corer）、箱式采泥器（Box Corer）、史密斯-麦金泰尔采泥器（Smith Macintyre Grab）、范·维恩采泥器（Van Veen Grab）、水肺手工采样装置、土壤剖面采样装置、悬浮沉积物采样装置以及沉积物捕集器。