The Distribution of Zr, Hf and Y in the soils of Iaşi Municipality: Case Study
Journal Title: Analele stiintifice ale Universitatii "Alexandru Ioan Cuza" din Iasi - seria Geologie - Year 2016, Vol 62, Issue 1
Abstract
Zr, Hf and Y contents were determined via 54 samples collected from the topsoils of the Botanical Garden in Iaşi. Statistical parameters suggest the presence of a relatively homogeneous population whose mean values (Zr = 265.733 mg·kg-1, Hf = 7.287 mg·kg-1, Y= 27.524 mg·kg-1) fall within the Zr, Hf and Y content variation range, determined in other urban soils in the world, but they are higher than the mean values calculated by various authors for the upper continental crust. Although positive, the correlation coefficients have significant values only for Zr–Hf (0.539) and Zr–Y (0.325). The values of the geochemical background determined via the upper 95% confidence limit of the 95th percentile, namely 267.174 mg·kg-1 (Zr), 7.297 mg·kg-1 (Hf) and 34.079 mg·kg-1 (Y), are higher than the mean calculated values for the upper continental crust. The distribution of values of the Zr·Hf-1, Zr·Y-1 and Hf·Y-1 ratios reflects, first of all, the geochemical characteristics of the predominant lithology, namely loesses in the northern area and clays in the southern area, potential anthropic inputs being limited to fertilizers specific to the flora in the Botanical Garden.
Authors and Affiliations
Laviniu Apostoae
Keywords
Related Articles
- EP ID EP450470
- DOI -
- Views 109
- Downloads 0
The palynology and palynofacies of the Miocene deposits from the Subcarpathian Nappe (Ciritei Quarry, Eastern Carpathians)
The present study focuses on the palynological assemblage and palynofacies of the Upper Burdigalian – Lower Badenian deposits from the Subcarpathian Nappe. The assemblage of aquatic microfossils indicates an inner neriti...
Pressure anomalies on the Totea-Vladimir structure (Getic Depression)
The Totea-Vladimir structure belongs to the Getic Depression, which was formed at the beginning of the Lower Miocene in the South Carpathians foredeep. In terms of hydrocarbon accumulations, the Sarmatian and Burdigalian...
Pre-ocean and post-collision intraplate basalts from Romania: A comparative study
In the present paper, the intraplate pre-ocean Triassic Dobrogean basalts and the post-collision Paleogene Transylvanian basalts have been comparatively studied. Although the two basaltic rock series show the same tecton...
Spatial variation of Pb, Cu and Zn content in the soils of the Botanical Garden in Iaşi, Romania
The content of heavy metals in urban soils is an indicator of the degree of environmental pollution. In order to determine the level of pollution with Pb, Zn and Cu we have collected 144 samples from the soils of the Bot...
First report of the genus Euciphoceras (Nautiloidea, Mollusca) from the latest Eocene rocks of the North-western Thrace Basin (Bulgaria)
The unique nautiloid specimen recorded so far from the latest Eocene marl bed of Durhana Quarry (DQ), Haskovo County (North-western Thrace Basin, Bulgaria) is described and discussed herein. It represents a phragmocone m...