دورية أكاديمية
Time transformation of fractionation of rare-earth elements in soils under urban load in the humid subtropics of Russia
| العنوان: | Time transformation of fractionation of rare-earth elements in soils under urban load in the humid subtropics of Russia |
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| المؤلفون: | L.V. Zakharikhina, A.K. Guts, P.I. Lesnikova |
| المصدر: | Вестник Камчатской региональной ассоциации "Учебно-научный центр". Серия: Науки о Земле, Vol 59, Iss 3, Pp 94-103 (2023) |
| بيانات النشر: | Institute of Volcanology and Seismology FEB RAS, 2023. |
| سنة النشر: | 2023 |
| المجموعة: | LCC:Geology |
| مصطلحات موضوعية: | rare earth elements, soils, anthropogenesis, fractionation, the black sea coast of russia, Geology, QE1-996.5 |
| الوصف: | The peculiarities of the fractionation of rare earth elements (REE) were studied in three genetically similar types of soils in the territory of the humid subtropics of Russia. REE contents were determined by inductively coupled plasma mass spectrometry with full acid decomposition of samples. The following soils were studied: burozems formed on mudstones in the Mzymta river valley; burozems transformed to the state of abrozems formed on similar rocks in Sochi; and brown soils on carbonate rocks in the territory of the Utrish Reserve. Burozems formed in natural conditions on mudstones are characterized by REE fractionation with the predominance of their middle subgroup. In urban soils similar in genesis, an increase in the content of elements of the light subgroup is observed. These changes are due to their transformation as a result of urban load. Over the past 100 years, the soils of the city have undergone significant alkalinization, the index of pH in them increased by 2 units. The relationship between REE fractionation and soil acidity is confirmed by the REE distribution curve for the soils of the Utrish Reserve. The latter are distinguished by an even greater predominance of the light REE subgroup, due to the increased alkalinity of soils caused by the formation of soils on carbonate rocks. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | Russian |
| تدمد: | 1816-5524 1816-5532 |
| العلاقة: | http://www.kscnet.ru/journal/kraesc/article/view/771Test; https://doaj.org/toc/1816-5524Test; https://doaj.org/toc/1816-5532Test |
| DOI: | 10.31431/1816-5524-2023-3-59-94-103 |
| الوصول الحر: | https://doaj.org/article/a3f8ac61ebde4996ada54812e2f3f599Test |
| رقم الانضمام: | edsdoj.3f8ac61ebde4996ada54812e2f3f599 |
| قاعدة البيانات: | Directory of Open Access Journals |
| تدمد: | 18165524 18165532 |
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| DOI: | 10.31431/1816-5524-2023-3-59-94-103 |