Page 5 - Hubert Barnes Flipbook

They are formed by lateral secretion and by metamorphic reactions during shearing, which liberate mineral constituents such as quartz, sulfides, gold, carbonates, and oxides from deforming rocks, and focus these constituents into zones of reduced pressure or dilation such as faults. An ore is a type of rock that contains sufficient minerals with important elements including metals that can be economically extracted from the rock. The ores are extracted from the earth throughmining;theyarethen refined (often via smelting) to extract the valuable element, or elements.
Past experience includes geochemical research on the origin of hydrothermal ore deposits at the Geophysical
Laboratory of the Carnegie Institute of Washington, and extensive consulting on geochemical problems in environmental pollution and in the search for mineral resources. Dr. Barnes has been a consulting geochemist for more than 30 corporations and organizations and was also a board member of Scientific Systems, Inc., Pittsburgh Environmental Systems, and Applied Research and Exploration, Inc.
Dr. Barnes established the Goldschmidt Conferences, the world’s largest geochemical conference. The Goldschmidt Conference is the premiere international conference on geochemistry. It is owned jointly by the Geochemical Society and the European Association of Geochemistry.TheGeochemical
Society is a nonprofit scientific society founded to encourage the application of geochemistry to improving our understanding of the Earth and solar system. Membership is international and diverse in background, encompassing such fields as organic geochemistry, high and low-temperature geochemistry, petrology, meteoritics, fluid- rock interaction, and isotope geochemistry. The Geochemical Society is affiliated with the American Association for the Advancement of Science, the International Union of Geological Sciences, the Council of Scientific Society Presidents, and is also an allied society of the Geological Society of America.