Shannon Entropy as an Indicator for Sorting Processes in Hydrothermal Systems
| العنوان: | Shannon Entropy as an Indicator for Sorting Processes in Hydrothermal Systems |
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| المؤلفون: | Wim Bakker, Jasper Goseling, Frank J.A. van Ruitenbeek, Kim A.A. Hein |
| المساهمون: | Department of Earth Systems Analysis, UT-I-ITC-4DEarth, Faculty of Geo-Information Science and Earth Observation, Mathematics of Operations Research |
| المصدر: | Entropy, Vol 22, Iss 656, p 656 (2020) Entropy, 22(6):656, 1-13. Multidisciplinary Digital Publishing Institute (MDPI) Entropy Volume 22 Issue 6 |
| بيانات النشر: | MDPI AG, 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | hydrothermal, Sorting (sediment), processes, General Physics and Astronomy, Mineralogy, lcsh:Astrophysics, 010502 geochemistry & geophysics, Information theory, chemistry, 01 natural sciences, Quantitative Biology::Other, Article, Hydrothermal circulation, Physics::Geophysics, 0103 physical sciences, lcsh:QB460-466, early life, Absorption (electromagnetic radiation), lcsh:Science, Chemical composition, 0105 earth and related environmental sciences, geography, geography.geographical_feature_category, Mineral, 010304 chemical physics, Shannon entropy, minerals, Early life, lcsh:QC1-999, Volcanic rock, ITC-ISI-JOURNAL-ARTICLE, lcsh:Q, ITC-GOLD, Geology, sorting, lcsh:Physics |
| الوصف: | Hydrothermal processes modify the chemical and mineralogical composition of rock. We studied and quantified the effects of hydrothermal processes on the composition of volcanic rocks by a novel application of the Shannon entropy, which is a measure of uncertainty and commonly applied in information theory. We show here that the Shannon entropies calculated on major elemental chemical composition data and short-wave infrared (SWIR) reflectance spectra of hydrothermally altered rocks are lower than unaltered rocks with a comparable primary composition. The lowering of the Shannon entropy indicates chemical and spectral sorting during hydrothermal alteration of rocks. The hydrothermal processes described in this study present a natural mechanism for transforming energy from heat to increased order in rock. The increased order is manifest as the increased sorting of chemical elements and SWIR absorption features of the rock, and can be measured and quantified by the Shannon entropy. The results are useful for the study of hydrothermal mineral deposits, early life environments and the effects of hydrothermal processes on rocks. |
| وصف الملف: | application/pdf |
| اللغة: | English |
| تدمد: | 1099-4300 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::15c537dd3dd43ffb7dd44f1b0c4b571b https://www.mdpi.com/1099-4300/22/6/656 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....15c537dd3dd43ffb7dd44f1b0c4b571b |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 10994300 |
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