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|---|---|---|---|
| 001 | 664398 | ||
| 005 | 20231030041928.0 | ||
| 035 | _a(RuTPU)RU\TPU\network\35582 | ||
| 035 | _aRU\TPU\network\20940 | ||
| 090 | _a664398 | ||
| 100 | _a20210412a2020 k y0engy50 ba | ||
| 101 | 0 | _aeng | |
| 102 | _aNL | ||
| 135 | _adrcn ---uucaa | ||
| 181 | 0 | _ai | |
| 182 | 0 | _ab | |
| 200 | 1 |
_aHydrochemistry and isotopic signatures of subpermafrost groundwater discharge along the eastern slope of the Lena River Delta in the Laptev Sea _fA. N. Charkin, I. I. Pipko, G. Yu. Pavlova [et al.] |
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| 203 |
_aText _celectronic |
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| 300 | _aTitle screen | ||
| 330 | _aGeochemical processes in the Artic are changing at accelerated rates due to climate change. We present the results of a study on the features of the isotopic and hydrochemical signals of discharging submarine subpermafrost groundwaters on the transect along the underwater extension of the Lena River Delta in the Laptev Sea. This study demonstrated that the water column at submarine groundwater discharge sites is enriched with radium isotopes. A significant part of the short-lived radium isotopes depending on the season and hydrometeorological conditions can has an erosive genesis, while 226Ra activity is due to the serious contribution of groundwater. The light signal of ?18O and the increased quantities of excess deuterium can indicate that groundwater was formed when the climate was colder than today. The fraction of subpermafrost groundwater in the bottom layer of the studied transect reaches 7% at the plays of the submarine groundwater discharge. The groundwater presence was also indicated by an increase in the content of dissolved Na+ at the discharge site resulting in Ca2+/Na+ ratio decrease relative to other waters in the Buor-Khaya Bay. The higher total alkalinity value is probably also the result of submarine subpermafrost groundwater discharge. | ||
| 333 | _aРежим доступа: по договору с организацией-держателем ресурса | ||
| 461 | _tJournal of Hydrology | ||
| 463 |
_tVol. 590 _v[125515, 13 p.] _d2020 |
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| 610 | 1 | _aэлектронный ресурс | |
| 610 | 1 | _aтруды учёных ТПУ | |
| 610 | 1 | _aradium isotopes | |
| 610 | 1 | _apermafrost | |
| 610 | 1 | _aLena River Delta | |
| 610 | 1 | _amajor ions | |
| 610 | 1 | _atotal alkalinity | |
| 610 | 1 | _aisotopic composition | |
| 610 | 1 | _aизотопы радия | |
| 610 | 1 | _aвечная мерзлота | |
| 610 | 1 | _aрека Лена | |
| 610 | 1 | _aионы | |
| 610 | 1 | _aщелочность | |
| 610 | 1 | _aизотопный состав | |
| 701 | 1 |
_aCharkin _bA. N. _gAleksandr |
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| 701 | 1 |
_aPipko _bI. I. _gIrina Ivanovna |
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| 701 | 1 |
_aPavlova _bG. Yu. _gGalina |
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| 701 | 1 |
_aDudarev _bO. V. _cgeologist _cresearcher of Tomsk Polytechnic University, candidate of geological and mineralogical Sciences _f1955- _gOleg Viktorovich _2stltpush _3(RuTPU)RU\TPU\pers\35379 |
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| 701 | 1 |
_aLeusov _bA. E. |
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| 701 | 1 |
_aBarabanshchikov _bYu. A. _gYury |
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| 701 | 1 |
_aShcherbakova _bK. P. _gKseniya |
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| 701 | 1 |
_aYaroshchuk _bE. I. _gElena |
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| 701 | 1 |
_aPugach _bS. P. _gSvetlana Petrovna |
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| 701 | 1 |
_aGulenko _bT. _gTimofey |
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| 701 | 1 |
_aGoryachev _bV. A. _gVladimir |
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| 701 | 1 |
_aSemiletov _bI. P. _cgeographer _cProfessor of Tomsk Polytechnic University, doctor of geographical Sciences _f1955- _gIgor Petrovich _2stltpush _3(RuTPU)RU\TPU\pers\34220 |
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| 701 | 1 |
_aZarubina _bN. V. |
|
| 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 _c20210412 _gRCR |
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| 856 | 4 | _uhttps://doi.org/10.1016/j.jhydrol.2020.125515 | |
| 942 | _cCF | ||