Production and transport of soil and sediments, determined by cosmogenic radionuclides and noble gases

土壤和沉积物的生产和运输，由宇宙源放射性核素和惰性气体决定。通过测量近地表矿物中宇宙射线产生的核素，解决了有关澳大利亚土壤和风化层资源的基本问题。宇宙源BE-10、Ne-21和Al-26用于(1)量化土壤流失的可持续水平，(2)评估长期混合速率，(3)定量风化物质从山坡到河流的扩散和通量，以及(4)确定通过澳大利亚河流和泛滥平原的泥沙运动速率，包括沉积物吸附污染物。这项研究对农业、矿产资源和沉积废物处理中土壤、沉积物和风化沉积物的利用和保护具有重要意义。

Production and transport of soil and sediments, determined by cosmogenic radionuclides and noble gases. Basic questions concerning Australia's soil and regolith resources are addressed through measurement of nuclides produced by cosmic rays in near-surface minerals. Cosmogenic Be-10, Ne-21 and Al-26 are used to (i) quantify the sustainable levels of soil loss, (ii) assess long-term mixing rates, (iii) quantify dispersion and flux of regolith materials from hill-slopes to rivers, and (iv) determine the rates of sediment movement through Australian rivers and floodplains, including sediment-adsorbed pollutants. The research has strong implications for the usage and conservation of soil, sediments and weathered deposits for agriculture, mineral resources, and sedimentary waste disposal.