In the treatment of refractory gold ores containing arsenic, pressure oxidation (POX ... residue conducted after acid pressure leaching revealed extensive disruption of the sulfide minerals, which ...

Or the mineral sphalerite, whose basic zinc sulfide structure can accommodate impurities of other elements, with cadmium, mercury, manganese, gallium, germanium, and indium instead of zinc ...

Almost everything else is on his block gone. As many as 12,000 homes, businesses and other structures may have been destroyed in the wildfires raging in Los Angeles County, rendering entire ...

Many residents blame their health problems on the smelter’s emissions and its vast stockpile of arsenic-laced waste. New laboratory tests, analyzed at a Swiss university as part of an ...

But we don't know exactly what they are or what material is creating the patterns we have uncovered." The findings have left scientists questioning everything they knew about Earth's structure (Getty ...

The team believes that the structure was in use until the 8th century BCE, the middle of the period when the Kings of Judah ruled. A scarab seal from the 8th century BCE uncovered during the ...

In his work "The Four Elements of Architecture," Semper argued that architecture didn't begin with permanent structures, but with textiles. He described how early humans first gathered around the ...

Guangdong Basic Research Center of Excellence for Ecological Security and Green Development, Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, ...