Науковий вісник НГУ

Soil magnetism in Ukraine

• 
• 

User Rating:  / 0

PoorBest 

Details

Category: Geology

Last Updated on 19 February 2013

Published on 16 November 2012

Hits: 4623

Authors:

A.I. Menshov, Cand. Sci. (Geol.), Taras Shevchenko Kyiv National University, Research Fellow of the Geology Department, Kyiv, Ukraine

A.V. Sukhorada, Cand. Sci. (Geol.-Min.), Assocciate Professor, Taras Shevchenko Kyiv National University, Senior Research Fellow of the Geology Department, Kyiv, Ukraine

Abstract:

Nowadays the investigation of soil magnetism (pedomagnetizm) is important part of magnetometric studies. Soils are rather magnetic and sometimes they are the main object on the surface generating local magnetic anomalies. Such cases have been registered within the Dniepr-Donets Depression in Ukraine. Our work aimed the study of vertical and lateral distributions of magnetic characteristics of soils. In addition, the possible ways of application of the information about soil magnetism were analysed. The method of the research includes the principles of high-scale magnetometry, micromagnetic surveys, rock-magnetic and paleomagnetic studies, methods of soil science. The main magnetic parameters are: magnetic susceptibility ?, summary magnetization J?, effective magnetization Jef, vector of magnetic field T and its gradients, etc. Soils were studied within the main soil-climatic zones of Ukraine: Polesie (woodlands), Forest-Steppe, Steppe, Dry Steppe. The investigated soil types are: sod-podzol soil, gray forest soil, chestnut soil, chernozem soil (leached, typical, ordinary, southern), meadow soil, sod soil and bog soil. The soil magnetism increases from North to South across the soil-climatic zones of Ukraine. The most magnetic are ordinary and south chernozem soils. The least magnetic are sod-podzol, meadow and bog soils. The maximal values of the magnetic parameters are fixed in the watersheds and plateaus, minimal values are fixed in the floodplains, gullies, terraces. So cold ‘urbanozem’, te type of polluted soil, was investigated. Information about soil magnetism was used for solving environmental tasks. The magnetic parameters increase with soil pollution due to the content of heavy metals and other dangerous for human health matters. There is an opportunity of using soil magnetism in hydrocarbon prospecting due to the formation of autogenic magnetic minerals in the subsurface under the influences of oil and gas. Magnetic susceptibility rate is useful for agricultural mapping of lands, investigation of erosion, soil fertility, necessity of mineral and organic fertilizers.

References:

1. Сухорада А.В. Геофизика педосферы – проблемы и методология их решения / А.В. Сухорада, М.А. Сухорада // Тез. Доп. ІV міжнар. конф. „Моніторинг небезпечних геологічних процесів та екологічного стану середовища“. – К.: 2003. – С.128–129.

Sukhorada, A.V. and Sukhorada, M.A. (2003), “Geophysics of soils: problems and solutions”, 4th Int. Conf. Proc. “Monitoring of dangeros geological processes and ecological state of environement”, Kyiv, pp. 128–129.

2. Nachtergaele, F.O. (1995), “From the FAO-Unesco Soil Map of the World to the digital global soil and terrain database”, Proc. ESB Meeting, Athens, AGL Working paper, FAO, Rome.

3. Меньшов О.І. Застосування магнетизму ґрунтового покриву для розв’язання геолого-геофізичних задач / Меньшов О.І. // Вісник КНУ імені Тараса Шевченка, Геологія. – К.: 2007. – № 40. – С. 45–48.

Menshov, O.I. (2007), “Use of soil magnetism for geological and geophysical tasks solution”, Visnyk Kyivskoho Natsionalnoho Universytetu imeni Tarasa Shevchenka. Geologia, no.40, pp. 45–48.

4. Коснырева М.В. Разработка комплекса геофизических методов для решения прикладных задач почвенного картирования: автореф на соиск. уч. ст. канд. геол.-мин. наук: спец. 25.00.10 „Геофизика, геофизические методы поиска полезных ископаемых“ / Коснырева М.В. – М.: 2007. – 21 с.

Kosnyreva, M.V. (2007) “Design of complex of geophysical methods for solution of applied problems of soil mapping”, Abstract of Cand. Sci. (Geol.-Min.) dissertation, Dept. Geophysics, Geophysical Methods of Minerals Prospecting, Мoscow, 2007, 21 p.

5. Бондарь К.М. Естественная остаточная намагниченность почвенного покрова / К.М. Бондарь, А.В. Сухорада // Науковий вісник НГАУ. – 2003. – №8. – С. 77–80.

Bondar, K.M. and Sukhorada, A.V. (2003), “Natural residual magnetization of soil”, Naukovyi Visnyk NGAU, no.8, pp. 77–80.

6. Maher, B.A., Moore, C. and Matzka, J. (2008), “Spatial variation in vehicle-derived metal pollution identified by magnetic and elemental analysis of roadside tree leaves”, Atmospheric Environment, vol. 42, issue 2, pp. 364–373.

7. Liu, Т. and Cheng, Т. (1998), “Comprehensive evalution of mechanizm of ‘chimney-effect’ using principles of magnetizm, geochemistry and mineralogy”, Chinese Science Bull., no. 43, 9, pp. 743–748.

8. Почва, город, экология / [под общей ред. акад. РАН Г. В. Добровольского]. – М.: Фонд „За экономическую грамотность“, 1997. – 320 с.

Dobrovolskiy, G.V. (1997), Pochva, gorod, ekologiya [Soil, City, Ecology], Fund “Za ekonomicheskuyu gramotnost”, Moscow, Russia

9. Rijal, M.L., Appel, E., Petrovsky, E. and Blaha, U. (2010), “Change of magnetic properties due to fluctuation of hydrocarbon contaminated groundwater in unconsolidated sediments”, Environmental Pollution, no.158(5), pp. 1756–1762.

10. Gonzalez, F., Aldana, M., Constanzo-Alvarez, V., Diaz, M. and Romero I. (2002), “An integrated rock magnetic and EPR study in soil samples from a hydrocarbon prospective area”, Physics and Chemistry of the Earth, vol. 27, pp. 1311–1317.

2012_01_sukhor
2013-02-18  472.61 KB  1247

• Next >