Tag Archives: Earth Sciences

Noble Metals, Subcontinental Lithosphere, and Ni-Cu-PGE Deposits

Posted on May 28, 2013 by stevepiercey

Recent research by Kamenetsky et al. published in Geology provides insight into the nature of the parental magmas potentially responsible for the formation of nickel-copper-platinum group element (Ni-Cu-PGE) deposits in intra-plate environments.  Previous researchers have illustrated the importance of the … Continue reading →

Posted in Copper, Economic Geology, Geochemistry, Geology, Layered intrusions, Magmatic Sulfides, Mineral Resources, Nickel, Platinum Group Elements, Recently Published | Tagged , , , , , , , , , , , , | Leave a comment

Classic papers in Economic Geology: Campbell and Naldrett (1979) – The Influence of Silicate-Sulfide Ratios on the Geochemistry of Magmatic Sulfides

Posted on May 15, 2013 by stevepiercey

Magmatic sulfide deposits are critical sources of nickel (Ni), copper (Cu), and platinum group elements (PGE) globally.  These deposits form from the segregation of a sulfide liquid from a silicate liquid, similar to oil separating from water, due to the … Continue reading →

Posted in Classic Papers, Copper, Economic Geology, Geochemistry, Geology, Layered intrusions, Magmatic Sulfides, Mineral Resources, Nickel, Platinum Group Elements | Tagged , , , , , , , , , | 2 Comments

Earthquake-Induced Geochemical Anomalies

Posted on May 7, 2013 by stevepiercey

A recent review article by Cameron illustrates the importance of earthquakes in the generation of geochemical anomalies above buried mineral deposits.  The paper builds on previous work by Cameron and colleagues (e.g., Cameron et al., 2002; Cameron and Leybourne, 2005; Leybourne … Continue reading →

Posted in Copper, Economic Geology, Exploration Geochemistry, Geochemistry, Gold, Gold Deposits, Mineral Resources, Porphyry Copper, Recently Published, Uranium | Tagged , , , , , , , , , , , , | 1 Comment

Recently published: Economic Geology Special Issue on the Pebble Porphyry Cu-Au-Mo Deposit

Posted on May 2, 2013 by stevepiercey

The May issue of Economic Geology is a special issue on the Pebble Cu-Au-Mo deposit,  located near Iliamna, Alaska, edited by Karen Kelley, James Lang, and Robert Eppinger.  The issue is the culmination of a multi-year, multi-disciplinary collaborative research project between … Continue reading →

Posted in Alaska, Copper, Cordillera, Economic Geology, Exploration Geochemistry, Geochemistry, Geochronology, Geology, Geophysics, Gold, Gold Deposits, Mineral Resources, Orogenesis, Porphyry Copper, Recently Published, Stable Isotopes, Tectonics | Tagged , , , , , , , , , | 1 Comment

Classic papers in Economic Geology: Fallick et al. (2001) – Bacteria were responsible for the magnitude of the world-class hydrothermal base metal base metal sulfide deposit at Navan, Ireland

Posted on April 30, 2013 by stevepiercey

Irish-type zinc-lead deposits represent a distinctive sub-class of the carbonate-hosted zinc-lead deposit family, having geological features and genetic models that are hybrids between sedimentary exhalative (SEDEX; also known as clastic zinc-lead deposits) and Mississippi Valley-type (MVT) deposits.  They are important … Continue reading →

Posted in Bacteria, Biogeochemistry, Carbonate-hosted deposits, Classic Papers, Economic Geology, Geochemistry, Geology, Geophysics, Ireland, Irish-type deposits, Lead, Mineral Resources, Seafloor, Seafloor Massive Sulfides, Sedimentary exhalative deposits, Sedimentology, Stable Isotopes, Zinc | Tagged , , , , , , , , , , , , , | Leave a comment