The mining industry produces significant amounts of waste materials, with the greatest volumes generated during enrichment. These materials or by-products, tailings, may be used as alternative civil engineering reducing need for natural resources. In cold climates, frost behaviour is one critical functional requirement in applications. tailings classified sand, silty sandy clayey silt (EN ISO),...

Horqin Sandy Land is located in northeast China (4241’-4515’N, 11835’-12330’E). The wind-sand topography in Horqin Sandy Land can be described as two series--sand deposition and wind erosion. Wind is the natural force for the formation of wind-sandy environment, under windsandy environment, the wind erosion processes such as sand drifting, dust-storm, etc. occurred frequently because of the fre...

Abstract The poor condition of river diversion channels can prevent mining companies from relinquishing their mine to the government after has ceased. Many regions lack a locally derived template for integrating appropriate geomorphic and hydraulic conditions unmodified into designs help guide post-mining closure activities. Establishing baseline reference criteria catchments restoration effort...

The topography of Karangasem Regency is very varied, in the form plains, hills, mountains, namely highest mountain Bali (Gunung Agung). location which close to Mount Agung causes have a wealth natural resources class C minerals, sand and rocks are abundant compared other regencies Bali. government collects taxes on group mining entrepreneurs. Exploitation land carried out by entrepreneurs has n...

This study examined the effects of soil physicochemical properties (including heavy metal pollution) and vegetation parameters on soil basal respiration, microbial biomass, and the activity and functional richness of culturable soil bacteria and fungi. In a zinc and lead mining area (S Poland), 49 sites were selected to represent all common plant communities and comprise the area's diverse soil...

Despite the gradual professionalization of construction sector as well abundance sand mining sites offered by North Kivu, Democratic Republic Congo Region, ignorance materials local builders persists. This is case quarries extracting river used to make concrete and mortar. However, dosages various constituents are most often chosen on basis experience without any prior characterization this mat...

In recent years, the water–sand composition of Yangtze River channel has changed due to influence human factors, especially construction water reservoirs such as Three Gorges Project. Changing conditions have a long-term impact on shaping river morphology in middle and lower reaches River, erosion retreat local sections caused great harm embankment projects. This paper focuses evolution mechani...

The major element composition, including two kinds of clay minerals and moisture content of sound-producing sand are reported for the first time. Sand from 33 beaches in Japan has been found to make sound. Ten sound-producing beaches were selected to compare with silent beach sand. Both sound-producing sand and silent beach sand are mostly composed of quartz and feldspar. The range of SiO2 cont...

Introduction The narrow-leaved cattail wetland (Hopfensperger and Engelhardt 2007) known as Dyke Marsh formally became a land holding of George Washington Memorial Parkway (GWMP, a unit of the national park system) in 1959, along with a congressional directive to honor a newly-let 30-year commercial sand and gravel dredge-mining lease at the site (Litwin et al. 2013; Figure 1). Dredging continu...

Anthropogenic inventories for copper (229 ± 89 ug/cm2, N = 30), and mercury (470 ± 307 ng/cm2, N = 25) in Lake Superior sediments are much greater than inventories in remote lakes (Cu 50 ± 31 ug/cm2, Hg 64 ± 34 ng/cm2, N = 16) that receive inputs largely from long-distance atmospheric sources. Whereas the absolute concentration of mercury in Lake Superior sediments is not high (80–110 ng/g), en...