کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8865883 1620867 2018 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Anomalously high concentration of Ni as sulphide phase in sediment and in water of a mountain catchment with serpentinite bedrock
ترجمه فارسی عنوان
غلظت بالا غلظت نیکل در فاز سولفید در رسوب و در آبهای کوهستانی با سنگ بستر سرپنیتینیت
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات زمین شناسی اقتصادی
چکیده انگلیسی
Our results revealed a peculiar Ni speciation in the sediment samples, appointing to the presence as sulphide and differentiating from results of previous works usually indicating a main source bond to Fe and Mn oxides. These data probably revealed an important amount of sulphide minerals and were related to a relatively low weathering of glacial sediment. Moreover, water analysis showed a relatively high Ni concentration consistent with an enhanced dissolution. Enrichment due to atmospheric deposition is excluded by the temporal trend of Ni concentrations in water samples. Our results showed anomalies in Ni speciation and dissolution in water different from previous studies on the same bedrock type, raising new issues regarding the primary pedogenetical phase of serpentine soils and the dissolution of Ni in high mountain catchments.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Geochemical Exploration - Volume 190, July 2018, Pages 58-68
نویسندگان
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