We investigated the potential of tailings generated from chrysotile asbestos fiber production as a source iron, nonferrous metals, and gold. proposed use granulometric separation systematically examined different enrichment processes, namely magnetic separation, gravity concentration, using Knelson concentrator, to extract valuable components. The characterization initial tailing samples reveal...

Little is known about the microstructural behavior of magnetite during hypervelocity impact events, even though it a widespread accessory mineral and an important magnetic carrier in terrestrial extraterrestrial rocks. We report systematic electron backscatter diffraction crystallographic analysis shock features from transect across 52-km-diameter ca. 380 Ma Siljan structure Sweden. Magnetite g...

Abstract High‐quality paleointensity data are essential for improving our understanding of the geomagnetic field; however, it is challenging to find materials that reliably record full vector magnetization going back in time. Here, we examine a new candidate material studies: clinkers, which rocks have been baked, metamorphosed, or melted by underlying coal seam fires. Previous studies conducte...

Abstract Despite the decreases in temperature and permeability of oceanic plates with increasing age, hydrothermal circulation (HC) can be rejuvenated 130-Ma old Pacific plate vicinity Japan Trench, substantially affecting thermal structure remaining amount magnetization (RAM). To decipher roles HC RAM, vigor extent Trench should quantitatively evaluated. Here we numerically show that is outer-...

Abstract The Yellow River Estuary (YRE) and adjacent Laizhou Bay (LB) encounter eco-environmental risks caused by heavy metals (HMs) pollution. Here magnetic measurements were performed on 239 surface sediment samples from the YRE LB to establish a rapid effective method for detecting HMs. Magnetite, maghemite, hematite coexist in sediments. distributions of minerals are dominated sources (Yell...

Sintering accounts for about 50% of the total NOx emissions iron and steel industry. from sintering process can be simulated using coke combustion. However, generation emission law burning in pulverized coal is still not clear. The formation characteristics during combustion catalyzed by ore fines several iron-containing pure minerals were studied this paper. results showed that improve rate in...