Evolution of a Porphyry-Cu Mineralized Magma System at Santa Rita, New Mexico (USA)

Trace element remobilization at the Ok Tedi porphyry Cu-Au deposit, Papua New Guinea

The Ok Tedi Complex hosts a world-class porphyry copper-gold deposit. Samples from the Ok Tedi Complex and the neighbouring Mount Ian Complex were analyzed for major and trace elements using XRF and HR-ICP-MS, and the isotopic composition of S in sulphides was analyzed by Elemental Analyzer. Major element geochemistry indicates that both complexes are alkaline and contain rocks ranging in compo...

Seismic Q and Velocity Structure for the Magma-hydrothermal System of the Valles Caldera, New Mexico

The Valles Caldera lies at the intersection of the Jemez Lineament and the western edge of the Rio Grande Rift in northern New Mexico. The caldera and its immediate surroundings comprise one of the world's largest and most complex volcanic centers, with a long history of eruptive activity extending up to geologically recent times. In this thesis we present the results of two different forward m...

Timing magma ascent at Popocatepetl Volcano , Mexico , 2000 ^ 2001

Magnetic anomalies may be used to constrain magma ascent and are useful as precursors to eruptions especially when correlated with other geophysical and geochemical data. In this paper we present multiparameter data on the magnetics, dome morphology, geochemistry and seismicity associated with the December 2000^January 2001 eruptions, the largest of the recent eruptions at Popocatepetl Volcano....

Recycling of Proterozoic crust in Pleistocene juvenile magma and rapid formation of the Ok Tedi porphyry Cu–Au deposit, Papua New Guinea

Geochemistry, tectonic setting and magmatic origin of the mineralized stock in SahebDivan porphyry copper system, NW Iran

SahebDivan porphyry copper system is located in Alborz-Azarbaijan magmatic zone at northwest Iran. Based on geological surveys, petrographic and geochemical studies, indicated that mineralized stock in this system mainly cosists of granodiorite, diorite and monzonite rocks. These rocks are peraluminous and belong to high-K calc-alkaline and shoshonitic magma series and plotted in the field of I...