نتایج جستجو برای: limestone quarries
تعداد نتایج: 6283 فیلتر نتایج به سال:
metabasites and serpentinites of the ophiolitic sequence of the gimigliano-mount reventino unit(calabria, southern italy), also known as greenstones, are employed and marketed for building and ornamentalpurposes since prehistorical times. the main topic of our research focuses on the occurrence, within the abovelithotypes, of asbestiform minerals that may be potentially harmful for human health...
The performance of land drainage systems installed in mineral soils Ireland is highly variable, and dependent on, amongst other factors, the quality suitability aggregate used. In Ireland, for usually river-run gravel crushed stone. This study classified distribution, type, popularity, size availability aggregates throughout quantified their use soils. Eighty-six quarries were surveyed. Limesto...
Rendzinas in the taiga zone are intrazonal soils; moreover, all of their processes occur ways that different from podzolic soil formation, which is typical for zonal boreal ecosystem. At same time, habitats carbonate soils known as places there a concentration biodiversity more southern regions, they drier, insolated, and have higher trophic state than podzols. The biotopes on becoming dominate...
The distribution of ground-water radiocarbon ages from the Tertiary limestone aquifer (includes the Floridan aquifer) in South Carolina shows both a typical trend for a regional sedimentary aquifer plus a lesscommonly reported occurrence of disjunct outliers of recharging and thus high vulnerability to contamination located farther down the regional flow system. The main recharge area, and thus...
Replacement dolomite in the Latemar carbonate buildup, northern Italy, formed when limestone was infiltrated by and reacted with Mg-rich fluid. It occurs in discrete bodies in sharp contact with unreacted limestone. The dolomite developed in a nearly orthogonal lattice of vertical columns (replacement of limestone breccia pipes) and sheets (replacement along fractures and limestone-dike contact...
Pseudonannolene ambuatinga n. sp. and Pseudonannolene saguassu n. sp. are described from individuals collected in limestone caves in the municipality of Pains, Minas Gerais, Brazil, which comprises a scenario of great conflict between speleological preservation and limestone extraction. The two species differ in their gonopod morphology and in size and color. Pseudonannolene ambuatinga n. sp. i...
Background and aims: The emission of sulfur dioxide in air has hazardous effects on human health and environment. In this research the use of surfactants with sodium bicarbonate and limestone for the removal of sulfur dioxide was studied. Methods: A packed scrubber was used and the effect of absorbents (limestone or sodium bicarbonate), the kind and concentration of surfactants were assessed...
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