نتایج جستجو برای: east bokaro coalfield
تعداد نتایج: 108566 فیلتر نتایج به سال:
In recent years, environmental pollution by coal mining is a long-established human activity affecting all levels of life with various environmental impacts by generating heavy metals. The presence of heavy metals even in trace amount is toxic and detrimental to all living organisms. The coal mine area in Bokaro is one of the “Toxic Hotspot” in India. Bacteria have evolved uptake and efflux mec...
Silicic, mafic and alkali intra-seam tonsteins have been known from SW China for a number of years. This paper reports on the geochemical compositions of coals and tonsteins from three seam sections of the Songzao Coalfield, SW China, and evaluates the geological factors responsible for the chemical characteristics of the coal seams, with emphasis on the influence from different types of volcan...
in recent years, environmental pollution by coal mining is a long-established human activity affecting all levels of life with various environmental impacts by generating heavy metals. the presence of heavy metals even in trace amount is toxic and detrimental to all living organisms. the coal mine area in bokaro is one of the “toxic hotspot” in india. bacteria have evolved uptake and efflux mec...
Geolo~ical Fieldwork 1991, Paper IYYZ-I Telkwa coalfield geology is cliscussed in ! everal p;aper!, (Koo, 19x3; Palsgrove and B u t n, 1989) and is coverec. by regional geology maps of Maclrltyre ~f ul . ( I 289) and Tipper (1976). Coal-bearing rocks i n the coalfielc helong to Iht: Skeena Group of Lower Cretacexh age and 3 .e assigne j to the Red Rose Formation of Al'3i;m age and p' Nssibly ai...
A common task in coal exploration is evaluating reserves by estimating some form of isopach map. Available machine-contouring packages, because of their gridding/contouring sequence, are generally unsatisfactory for this purpose. A different approach considers an isopach map as the difference between two complete digital models of the upper and lower surfaces involved. In addition, whereas a to...
Geochemical characteristics of Jurassic high-sodium coal in Tatuo Coal Mine, Qinghai Province, China
Sodium in the coals of West China has received persistent attention due to its high contents and severe pollutions’ problems during coal utilization. A total seven drill samples Jurassic from Tatuo coalfield, Qinghai Province, were collected analysed using optical microscopy, scanning electron microscopy conjunction with energy-dispersive X-ray spectrometry, powder diffraction, inductively coup...
Failure of the rice crop, or low yield has dire consequences for rice-dependent households, including food insecurity and malnutrition, India’s poorest farmers in East Indian Plateau region. Crop diversification could reduce risks production from vagaries rainfall provide cash income which is not generated subsistence rice. Being primary household laborers women bear brunt these difficult condi...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید