| 000 | 03792nlm1a2200493 4500 | ||
|---|---|---|---|
| 001 | 669320 | ||
| 005 | 20231030042218.0 | ||
| 035 | _a(RuTPU)RU\TPU\network\40560 | ||
| 035 | _aRU\TPU\network\34844 | ||
| 090 | _a669320 | ||
| 100 | _a20230322a2023 k y0engy50 ba | ||
| 101 | 0 | _aeng | |
| 102 | _aNL | ||
| 135 | _adrcn ---uucaa | ||
| 181 | 0 | _ai | |
| 182 | 0 | _ab | |
| 200 | 1 |
_aCluster- and PCA-based gamma-ray spectrometry data processing algorithm for hydrothermal alteration haloes mapping _fI. S. Sobolev, K. A. Orekhov, A. N. Orekhov [et al.] |
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| 203 |
_aText _celectronic |
||
| 300 | _aTitle screen | ||
| 320 | _a[References: 36 tit.] | ||
| 330 | _aIn 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 | _aРежим доступа: по договору с организацией-держателем ресурса | ||
| 461 | _tJournal of Applied Geophysics | ||
| 463 |
_tVol. 210 _v[104935, 9 p.] _d2023 |
||
| 610 | 1 | _aэлектронный ресурс | |
| 610 | 1 | _aтруды учёных ТПУ | |
| 610 | 1 | _agamma-ray spectrometry | |
| 610 | 1 | _acluster analysis | |
| 610 | 1 | _aprincipal components analysis | |
| 610 | 1 | _aradioactive background fluctuation | |
| 610 | 1 | _aimproving data | |
| 610 | 1 | _ahydrothermal alteration | |
| 610 | 1 | _aгамма-спектрометрия | |
| 610 | 1 | _aкластерный анализ | |
| 610 | 1 | _aгидротермальные изменения | |
| 701 | 1 |
_aSobolev _bI. S. _cgeologist, geochemist _cassociate Professor of Tomsk Polytechnic University, candidate of geological-mineralogical Sciences _f1974- _gIgor Stanislavovich _2stltpush _3(RuTPU)RU\TPU\pers\36879 |
|
| 701 | 1 |
_aOrekhov _bK. A. _cphysicist _cLaboratory assistant of Tomsk Polytechnic University _f1989- _gKirill Aleksandrovich _2stltpush _3(RuTPU)RU\TPU\pers\37517 |
|
| 701 | 1 |
_aOrekhov _bA. N. _cgeologist _cAssociate Professor of Tomsk Polytechnic University, Candidate of geological and mineralogical sciences _f1962- _gAleksandr Nikolaevich _2stltpush _3(RuTPU)RU\TPU\pers\32554 |
|
| 701 | 1 |
_aCharkin _bA. N. _cgeologist _cAssociate Scientist of Tomsk Polytechnic University, candidate of geological and mineralogical Sciences _f1980- _gAleksandr Nikolaevich _2stltpush _3(RuTPU)RU\TPU\pers\35441 |
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| 701 | 1 |
_aSoboleva _bN. P. _cspecialist in the field of landscape _cAssociate Professor of Tomsk Polytechnic University, Candidate of geographical sciences _f1975- _gNadezhda Petrovna _2stltpush _3(RuTPU)RU\TPU\pers\32402 |
|
| 712 | 0 | 2 |
_aНациональный исследовательский Томский политехнический университет _bИнженерная школа природных ресурсов _bОтделение геологии _h8083 _2stltpush _3(RuTPU)RU\TPU\col\23542 |
| 801 | 2 |
_aRU _b63413507 _c20230322 _gRCR |
|
| 856 | 4 | _uhttps://doi.org/10.1016/j.jappgeo.2023.104935 | |
| 942 | _cCF | ||