FERUM CONCRETIONS IN THE SOIL OF MALE POLLISYA
Journal Title: Вісник Одеського національного університету. Географічні та геологічні науки - Year 2017, Vol 22, Issue 1
Abstract
Problem Statement and Purpose. In humid conditions the it is common forms of soil neoplasms are glandular: ferum concretions, marsh ore, ocher spots etc. Important identify ferum concretions with the corresponding minerals and detect stable properties of its individual diagnostic forms to establish soil formation and forecast the evolution of soils. The aim of the study is to establish features of the profile distribution of glandular neoplasms in sod glesish soils, to study fractional composition of ferum concretions within the genetic horizons and their chemical properties. Data&Methods. The findings are based on field morphological and laboratory studies. In selected samples of soil and glandular neoplasms by Kirsanov method wedetermined the total iron content, gross chemical composition, and their ratio was calculated based on the accumulation (Kx) and the ratio of Fe:Mn. Results. Sod glesish soils are widespread along the periphery of marshes and are formed under the influence of sod, glesish processes at different soil formation rocks in conditions of sporadic-pulsation of the water regime and excessive moisture under meadow and meadow-bog biocenoses. Ferum concretions are characteristic of all the genetic horizons of the sod gley of soil, except the soil formation rock, and their content is from 3,3% in the sod to 47,1% in the lower transitional horizon. The size fractions of ferum concretions from 2,5 in the sod to 7,2 cm transitional horizon with depth increases. The total iron content in fine grenotometric party sod glesish of soil and ferum concretions increases with depth, and maximum values are characteristic of the lower transition horizon. The lowest values of iron total content is typical of finegrained deposits of soil formatiom rock (of 16,0 mg/100 g of soil) and sod (66,4mg/100 g soil). In ferum concretions the total iron content is relatively greater and its maximum values (233,6 mg/100 g of soil) are typical ferum concretions transition to the rock horizon. It is established that in the gross chemical composition of ferum concretions iron oxides with its highest content in ferum concretions sod (48,75%) dominated. Also of ferum concretions are characterized by rather high content of aluminium oxides (5,59 – 7,92%). The highest values of the accumulation coefficient are characteristic of oxides iron (Kх = 7,21 – 2,58), which confirms the hypothesis about the dominant role of its compounds in the formation of ferum concretions.
Authors and Affiliations
Z. P. Pankiv, O. R. Iliasevich
Keywords
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