کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4457309 1620911 2015 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Identification of weak anomalies: A multifractal perspective
ترجمه فارسی عنوان
شناسایی ناهنجاری های ضعیف: چشم انداز چند فکتار
کلمات کلیدی
شاخص تکینگی، مولتی فرکتال، ناهنجاریهای ضعیف، اکتشافات ژئوشیمیایی
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات زمین شناسی اقتصادی
چکیده انگلیسی


• Two types of weak geochemical anomalies are presented.
• The current method could not directly process the data containing negative values.
• The background value influenced the resulting singularity index.
• A modified algorithm for estimation of the singularity index is introduced.
• A Matlab program for estimation of the singularity index is coded.

Attention has increasingly been focused on weak geochemical anomalies. In this paper, the singularity mapping technique, a powerful multifractal tool to identify weak anomalies, is presented. The original algorithm for estimation of the singularity index could not directly process the data containing negative values, and the resulting singularity index is influenced by the background value. A modified algorithm for estimation of the singularity index is introduced to overcome these shortcomings, and a Matlab program is coded for estimation of the singularity index, using both the original and modified algorithms. The advantage of the modified algorithm is demonstrated using a case study from Chaobuleng Fe polymetallic district, covered with grassland, in Inner Mongolia of northern China.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Geochemical Exploration - Volume 148, January 2015, Pages 12–24
نویسندگان
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