نتایج جستجو برای: heavy minerals
تعداد نتایج: 146769 فیلتر نتایج به سال:
Geostatistical and multivariate statistical analyses were applied to heavy mineral data from an Amazonian fluvial-lake system near the Tapajós River mouth investigate spatial distribution source-area of sediments. Twenty-one points investigated, physical characteristics Green Lake deepest point determined. Sand accumulates in lake margins mud quantity increases towards center. Heavy assemblage ...
Environmental pollution is one of the major problems for humans and animals. Radioactive wastes and heavy metals are important sources of pollution. Recent studies suggest that soil and geomedia have a high potential for the disposal of radioactive wastes and heavy metals. The clay minerals in geomedia can act as a barrier against radioactive wastes and heavy metals. However, enough information...
Background: Todays, water resources are affected by various factors such as organic materials, pathogens (bacterial and microbial agents), and minerals (including heavy metals). For this reason, continuously examining the spatiotemporal changes in environmental pollutants is one of the most critical components of water quality studies. Methods: The sampling of some heavy metals (Ni, Cd, Z...
Environmental pollution is one of the major problems for humans and animals. Radioactive wastes and heavy metals are important sources of pollution. Recent studies suggest that soil and geomedia have a high potential for the disposal of radioactive wastes and heavy metals. The clay minerals in geomedia can act as a barrier against radioactive wastes and heavy metals. However, enough information...
Quartz-rich sandstones in the Banda Arc Islands are thought to be equivalent of Mesozoic sandstones on the Australian NW Shelf where they are important proven and potential reservoirs. Previous studies suggested that rivers draining Australia provided most of the sediment input and there have been suggestions of a northern provenance for some Timor sediments. We present results from a provenanc...
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