Scientists find seismic role in formation of large gold nuggets
Briefly

Dr. Christopher Voisey and his team found that the immense forces of earthquakes squeeze quartz to generate electric fields. This process drives the formation of gold deposits, extracting dissolved gold from surrounding fluids.
The ability of quartz to generate electric voltages when stressed provides a new understanding of how large gold nuggets form in nature. It reveals a mechanism previously unknown that links seismic activity to mineral extraction.
Read at www.theguardian.com
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