Sources of river water radiogenic strontium: examples from the Achaean granite dominated catchments of Swaziland

de Villiers S; de Wit MJ

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Sources of river water radiogenic strontium: examples from the Achaean granite dominated catchments of Swaziland

机译：河水放射性锶的来源：以斯亚兹兰阿契亚人花岗岩为主的流域的例子

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This study of the geochemistry of rivers draining the Archaean granite-gneissic terrains of Swaziland reports the first anomalous Sr-Sr-87/Sr-86 data for a river system outside the Himalayas. Both major cation and calcium mass balance approaches suggest that the source of the radiogenic high strontium load of Swaziland rivers is predominantly, or exclusively, silicate weathering. However, a compilation of bedrock compositional data for river catchments in Swaziland demonstrates that the uncertainties associated with these mass balance approaches are large and presently underestimated in global chemical weathering studies. Consideration of the strontium mass balance, based on silicate Na/Sr end member values, demonstrates the potential magnitude of the error involved. Importantly, a compilation of both the Na/Sr and Sr content of silicate rocks in Swaziland demonstrates that the general relationship between (Na/Sr)(sil) and Sr content is poor and that high silicate versus carbonate X/Sr end member values cannot be assumed to imply relatively lower Sr weathering yields from silicate rocks.

机译：这项对斯威士兰古生花岗岩-片麻岩地形排水的河流的地球化学研究报告了喜马拉雅山以外河流系统的第一个Sr-Sr-87 / Sr-86异常数据。阳离子和钙质量平衡的主要方法都表明，斯威士兰河的放射性高锶负载源主要或完全是硅酸盐风化。但是，对斯威士兰河流域的基岩成分数据的汇编表明，与这些质量平衡方法相关的不确定性很大，目前在全球化学风化研究中被低估了。基于硅酸盐Na / Sr末端元素值的锶质量平衡的考虑表明了所涉及误差的潜在幅度。重要的是，对斯威士兰硅酸盐岩的Na / Sr和Sr含量的汇编表明，（Na / Sr）（sil）和Sr含量之间的一般关系很差，并且高硅酸盐与碳酸盐X / Sr端值不能假定这意味着硅酸盐岩石的Sr风化率相对较低。

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来源
《South African Journal of Geology: Being the Transaction of the Geological Society of South African: Syndie die Verhandelinge van die Geologiese Vereniging van Suid-Afrika》 |2007年第3期|共18页
作者
de Villiers S; de Wit MJ;
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正文语种 eng
中图分类地质学;
关键词
SILICATE WEATHERING RATES; MAJOR-ION CHEMISTRY; SR ISOTOPE COMPOSITION; HIMALAYAN RIVERS; DISSEMINATED CALCITE; CO2 CONSUMPTION; SOUTH-AFRICA; LOCH VALE; ROCKS; GEOCHEMISTRY;

机译：硅酸盐风化率;主要离子化学组成;SR同位素组成;喜马拉雅河;消散方解石;CO2消耗;非洲;淡水谷;岩石;地球化学;

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1. Sources of river water radiogenic strontium: examples from the Achaean granite dominated catchments of Swaziland [J] . de Villiers S, de Wit MJ South African Journal of Geology: Being the Transaction of the Geological Society of South African: Syndie die Verhandelinge van die Geologiese Vereniging van Suid-Afrika . 2007,第2a3期

机译：河水放射性锶的来源：以斯亚兹兰阿契亚人花岗岩为主的流域的例子
2. Mineralogical sources of the buffer capacity in a granite catchment determined by strontium isotopes [J] . Weyer C, Lischeid G, Aquilina L, Applied Geochemistry: Journal of the International Association of Geochemistry and Cosmochemistry . 2008,第10期

机译：由锶同位素确定的花岗岩流域缓冲能力的矿物学来源
3. Flood-event based metal distribution patterns in water as approach for source apportionment of pollution on catchment scale: Examples from the River Elbe [J] . Baborowski Martina, Einax Juergen W. Journal of Hydrology . 2016,第Null期

机译：基于洪水事件的金属分布模式作为流域尺度上污染源分配的方法：易北河的实例
4. Evapotranspiration mapping using NOAA/AVHRR images and a simplified energy balance model over a catchment. application to the Mbuluzi river basin in Swaziland [C] . Lahoche, F., Herlin, Geoscience and Remote Sensing Symposium, 2001. IGARSS '01. IEEE 2001 International . 2001

机译：使用NOAA / AVHRR图像和流域上的简化能量平衡模型进行蒸发蒸腾绘图。在斯威士兰姆布鲁兹河流域的应用
5. Solute inputs to soil and stream waters in a seasonally snow-covered mountain catchment determined using germanium/silicon, strontium-87/strontium-86 and major ion chemistry: Valles Caldera, New Mexico. [D] . Porter, Courtney. 2012

机译：在使用锗/硅，锶87 /锶86和主要离子化学方法测定的季节性冰雪覆盖的山区流域中，将土壤和溪流中的溶质输入：新墨西哥的Valles Caldera。
6. Wastewater treatment plants as a source of microplastics in river catchments [O] . Paul Kay, Robert Hiscoe, Isobel Moberley, -1

机译：废水处理厂是河流集水区中微塑料的来源
7. Tracing Sediment Sources Using Strontium Isotopes in a Pond Draining an Agricultural Catchment (Loire River Basin, France) [O] . Le Gall Marion, Evrard Olivier, Thil François, 2015

机译：在排水农业流域的池塘中使用锶同位素示踪沉积物来源（法国卢瓦尔河流域）

Sources of river water radiogenic strontium: examples from the Achaean granite dominated catchments of Swaziland

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