Sentence examples for ore source from inspiring English sources
Monazite, a phosphate, is the third most important ore source of rare earths.
These lava flows constituted a large copper ore source in Michigan for much of the 20th century; mining has since ceased in this area.
But because the percentage of praseodymium and especially terbium is much smaller than that of cerium in the common ore sources, little or no commercial application has been developed using the PrOx and TbOx systems.
Despite the increased importance of metal within Bronze Age economies, there is no evidence that Transylvanian communities placed their settlements to maximize their ability to contest or secure access to the metal ore sources in the Apuseni Mountains.
This development was caused by escalating ore treatment rates and different characteristics in future ore sources.
The data also suggest that metalworkers at different sites exploited different ore sources within the same ore body.
Due to the complex process of copper flotation and the frequently diversified conditions of ore sources, it is difficult to identify rougher flotation conditions and maintain the stability of production process.
Preah Khan and Phnom Dek production systems appear to have used different iron ore sources but, in the absence of well-preserved furnace remains, statistical analysis of slag chemistry indicates a technological conservatism spanning more than a millennium.
Part of the northern Palatinate region in Germany is characterized by elevated levels of arsenic and antimony in the soil due to the presence of ore sources and former mining activities.
Whether the new arrivals did not know how to work metal, or merely lacked the equipment or sources of ore to do so, remains to be established.The second shift was gastronomic.
Previous studies showed that U-bearing ore in source rocks acts as a catalyst, determining the degree, composition and timing of natural gas generation (Liu et al. 2006, 2013; Mao et al. 2012a, b, 2014; Li et al. 2008; Lu et al. 2007).
