Cluster- and PCA-based gamma-ray spectrometry data processing algorithm for hydrothermal alteration haloes mapping; Journal of Applied Geophysics; Vol. 210
| Parent link: | Journal of Applied Geophysics Vol. 210.— 2023.— [104935, 9 p.] |
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| Autor Corporativo: | |
| Outros autores: | , , , , |
| Summary: | Title screen In the present paper a high-resolution gamma-spectrometry data processing algorithm aimed at locating hydrothermal alteration haloes is discussed. On the first stage a cluster model of spatial variation of radioactive background is created using information on natural radioactive elements (NRE) concentrations and numerical geomorphological characteristics. This model allows for good terrain differentiation in terms of its lithological and landscape variability. Mathematical procedure for removal of NRE distribution variance, related to variability of lithology and elementary landscapes, improved radiometry data for mapping zones of hydrothermal alterations. On the second stage we integrated the “corrected” gamma-ray spectrometry data using principal component analysis (PCA). Comparing the acquired factor model with a priori radioactive models of hydrothermal alterations allowed us to differentiate quartz-hydromica and quartz-pyrite-sericite alteration haloes. Режим доступа: по договору с организацией-держателем ресурса |
| Idioma: | inglés |
| Publicado: |
2023
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| Subjects: | |
| Acceso en liña: | https://doi.org/10.1016/j.jappgeo.2023.104935 |
| Formato: | MixedMaterials Electrónico Capítulo de libro |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=669320 |
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| 200 | 1 | |a Cluster- and PCA-based gamma-ray spectrometry data processing algorithm for hydrothermal alteration haloes mapping |f I. S. Sobolev, K. A. Orekhov, A. N. Orekhov [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 36 tit.] | ||
| 330 | |a In the present paper a high-resolution gamma-spectrometry data processing algorithm aimed at locating hydrothermal alteration haloes is discussed. On the first stage a cluster model of spatial variation of radioactive background is created using information on natural radioactive elements (NRE) concentrations and numerical geomorphological characteristics. This model allows for good terrain differentiation in terms of its lithological and landscape variability. Mathematical procedure for removal of NRE distribution variance, related to variability of lithology and elementary landscapes, improved radiometry data for mapping zones of hydrothermal alterations. On the second stage we integrated the “corrected” gamma-ray spectrometry data using principal component analysis (PCA). Comparing the acquired factor model with a priori radioactive models of hydrothermal alterations allowed us to differentiate quartz-hydromica and quartz-pyrite-sericite alteration haloes. | ||
| 333 | |a Режим доступа: по договору с организацией-держателем ресурса | ||
| 461 | |t Journal of Applied Geophysics | ||
| 463 | |t Vol. 210 |v [104935, 9 p.] |d 2023 | ||
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a gamma-ray spectrometry | |
| 610 | 1 | |a cluster analysis | |
| 610 | 1 | |a principal components analysis | |
| 610 | 1 | |a radioactive background fluctuation | |
| 610 | 1 | |a improving data | |
| 610 | 1 | |a hydrothermal alteration | |
| 610 | 1 | |a гамма-спектрометрия | |
| 610 | 1 | |a кластерный анализ | |
| 610 | 1 | |a гидротермальные изменения | |
| 701 | 1 | |a Sobolev |b I. S. |c geologist, geochemist |c associate Professor of Tomsk Polytechnic University, candidate of geological-mineralogical Sciences |f 1974- |g Igor Stanislavovich |3 (RuTPU)RU\TPU\pers\36879 | |
| 701 | 1 | |a Orekhov |b K. A. |c physicist |c Laboratory assistant of Tomsk Polytechnic University |f 1989- |g Kirill Aleksandrovich |3 (RuTPU)RU\TPU\pers\37517 | |
| 701 | 1 | |a Orekhov |b A. N. |c geologist |c Associate Professor of Tomsk Polytechnic University, Candidate of geological and mineralogical sciences |f 1962- |g Aleksandr Nikolaevich |3 (RuTPU)RU\TPU\pers\32554 | |
| 701 | 1 | |a Charkin |b A. N. |c geologist |c Associate Scientist of Tomsk Polytechnic University, candidate of geological and mineralogical Sciences |f 1980- |g Aleksandr Nikolaevich |3 (RuTPU)RU\TPU\pers\35441 | |
| 701 | 1 | |a Soboleva |b N. P. |c specialist in the field of landscape |c Associate Professor of Tomsk Polytechnic University, Candidate of geographical sciences |f 1975- |g Nadezhda Petrovna |3 (RuTPU)RU\TPU\pers\32402 |9 16353 | |
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