کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4457117 1620905 2015 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Statistical analysis of soil geochemical data to identify pathfinders associated with mineral deposits: An example from the Coles Hill uranium deposit, Virginia, USA
ترجمه فارسی عنوان
تجزیه و تحلیل آماری داده های ژئوشیمیایی خاک برای شناسایی خطرات ناشی از ذخایر معدنی: یک نمونه از سپرده اورانیوم کلس هیل، ویرجینیا، ایالات متحده آمریکا
کلمات کلیدی
ژئوشیمی خاک تجزیه و تحلیل داده های ترکیبی، تجزیه و تحلیل چند متغیره، اورانیوم
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات زمین شناسی اقتصادی
چکیده انگلیسی


• Comparison of soil data from a U deposit area with a regional database
• Comparisons are made using multivariate compositional data analysis.
• Enrichment factors relative to Al show increased U, LREEs, and Nb.
• Anomalous U/Th ratios are apparent in soil overlying mineralisation.

Soil geochemical anomalies can be used to identify pathfinders in exploration for ore deposits. In this study, compositional data analysis is used with multivariate statistical methods to analyse soil geochemical data collected from the Coles Hill uranium deposit, Virginia, USA, to identify pathfinders associated with this deposit. Elemental compositions and relationships were compared between the collected Coles Hill soil and reference soil samples extracted from a regional subset of a national-scale geochemical survey. Results show that pathfinders for the Coles Hill deposit include light rare earth elements (La and Ce), which, when normalised by their Al content, are correlated with U/Al, and elevated Th/Al values, which are not correlated with U/Al, supporting decoupling of U from Th during soil generation. These results can be used in genetic and weathering models of the Coles Hill deposit, and can also be applied to future prospecting for similar U deposits in the eastern United States, and in regions with similar geological/climatic conditions.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Geochemical Exploration - Volume 154, July 2015, Pages 238–251
نویسندگان
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