DBPapers
DOI: 10.5593/sgem2011/s16.106

PARTICLE CHARACTERIZATION AND DETERMINATION OF ERODIBLE FRACTION OF SURFACE SOIL NEARBY THE OPEN PIT IN MALMBERGET MINE, SWEDEN

AUTHOR/S: Q. JIA, S. KNUTSSON, N. AL-ANSARI, Y. HUANG
Monday 1 August 2011 by Libadmin2011

11th International Multidisciplinary Scientific GeoConference SGEM2011, www.sgem.org, SGEM2011 Conference Proceedings/ ISSN 1314-2704, June 20-25, 2011, Vol. 2, 1087-1100 pp

ABSTRACT

Wind erosion of soil from exposed areas in mining sites is one of the sources for dust generation. Particle size distribution and mineralogical composition of source soil, erodible fraction of surface soil, moisture, as well as organic matter content are important factors that determine the property of particulate generation process. In this
research four soil samples were taken using shovel at different depth from the edge of the pit and the surface area nearby the pit in Malmberget mine in Sweden. Soil samples were analyzed for density, particle size, mineralogical composition, organic matter
content, and CaCO3 content. No calcite was detected by Qemscan and consequently,
CaCO3 was assumed absent in the soil samples. Moisture contents in the surface
samples were too little to prevent soil from wind erosion. All soil samples were mainly
composed of albite, quartz, and K felspar. Miner minerals such as mineral 23 (bFe,
bCa), as well as grossular, were more abundant within the surface samples while the
reverse is true for ilment. It should be mentioned, however, that undersurface samples
contained more particles of 100 μm in diameter compared to surface samples. Measured
erodible fractions for surface samples were 35.9% and 43.39%. The erodible fraction
was calculated for the soil of the studied area but the equations could not be applied
because the calculated values were overestimated. The value of soil erodibility index
was determined to be 19t/acre which was wind erosion group 7. Since wind erosion
group 7 is not a highly intrinsic erodible soil group, the dust problem might also arise
from disturbances of soil surface soils by trucks and other construction activities around the open pit.

Keywords: Erodible fraction, particle size distribution, wind erosion, mining

PAPER 2011/s16.106: PARTICLE CHARACTERIZATION AND DETERMINATION OF ERODIBLE FRACTION OF SURFACE SOIL NEARBY THE OPEN PIT IN MALMBERGET MINE, SWEDEN

30 EURO ADD TO CART


Your cart ( items)

Subtotal:
Tax cost ():
Shipping cost:
Total:
Checkout Empty


Home | Contact | Site Map | Site statistics | Visitors : 224 / 353063

Follow site activity en  Follow site activity SOILS  Follow site activity Papers SGEM2011   ?

CrossRef Member    Indexed in ISI Web Of Knowledge   Indexed in ISI Web Of Knowledge
   

© Copyright 2001 International Multidisciplinary Scientific GeoConference & EXPO SGEM. All Rights Reserved.

Creative Commons License