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首页> 外文期刊>Applied radiation and isotopes: including data, instrumentation and methods for use in agriculture, industry and medicine >A comparative evaluation of the CF:CS and CRS models in ~210Pb chronological studies applied to hydrographic basins in Brazil
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A comparative evaluation of the CF:CS and CRS models in ~210Pb chronological studies applied to hydrographic basins in Brazil

机译:在巴西水文盆地应用〜210Pb的年代学研究中CF:CS和CRS模型的比较评估

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摘要

The Constant Flux: Constant Sedimentation (CF:CS) and Constant Rate of Supply (CRS) of unsupported/ excess ~210Pb models have been applied to a ~210Pb data set providing of eighteen sediments profiles sampled at four riverine systems occurring in Brazil, South America: Corumbatai River basin (S1=Site 1, Sao Paulo State), Atibaia River basin (S2=Site 2, Sao Paulo State), Ribeirao dos Bagres basin (S3=Site 3, Sao Paulo State) and Amazon River mouth (S4=Site 4, Amapa State). These sites were chosen for a comparative evaluation of the performance of the CF:CS and CRS models due to their pronounced differences on the geographical location, geological context, soil composition, biodiversity, climate, rainfall, and water flow regime, among other variable aspects. However, all sediments cores exhibited a common
机译:无支撑/过量〜210Pb模型的恒定通量:恒定沉降(CF:CS)和恒定供给速率(CRS)已应用于〜210Pb数据集,该数据集提供了在巴西巴西南部四个河流系统采样的18个沉积物剖面美国:Corumbatai流域(S1 =圣保罗州1号站点),Atibaia流域(S2 =圣保罗州2号站点),Ribeirao dos Bagres流域(S3 =圣保罗州3号站点)和亚马逊河口(S4) =站点4,阿玛帕州)。选择这些站点是为了对CF:CS和CRS模型的性能进行比较评估,因为它们在地理位置,地质背景,土壤成分,生物多样性,气候,降雨和水流状况等方面存在明显差异。 。但是,所有沉积物岩心都表现出共同的特征。

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