Monthly Archives: March 2013

Subduction Origin for Eclogite-type Diamonds

A recent paper by Schultze et al. in Geology provides constraints on the origin of carbon and diamonds.  The paper argues that eclogite-type diamonds are formed from recycled subducted oceanic crust.  The study utilized the carbon and oxygen isotopes of carbonate … Continue reading

Posted in Diamonds, Economic Geology, Geochemistry, Geology, Stable Isotopes | Leave a comment

Instant gold

My inaugural posting. An article just recently published online in Nature Geoscience provides new insights into the origin of vein-hosted gold sytems (orogenic or ‘mesothermal‘ gold in the geological literature).  Weatherly and Henley have proposed ideas that link fault systems, … Continue reading

Posted in Economic Geology, Geochemistry, Geology, Geophysics, Gold, Gold Deposits | 1 Comment