Mapping argillic and advanced argillic alteration in volcanic rocks. Pdf the distribution and behaviour of major and trace elements in the main zones of hydrothermal alteration propylite, sericite and advanced. Advanced argillic alteration forms at higher temperatures and lower ph conditions e. Mapping argillic and advanced argillic alteration in. Alteration and mineralization at daralu porphyry copper. The concentrations of strontium in zones of advanced argillic alteration in the studied deposits and occurrences in the srednogorie and rhodopes regions is probably a widespread phenomenon. Compositions of cl and f in zunyite also suggest that the study of zunyite. Resolution contains fairly high levels of fluorine. Copper may also be introduced during overprinting phyllicargillic alteration events. Brief description in hypogene parts of porphyry copper deposits, the copper occurs predominantly in chalcopyrite. Argillic alteration is hydrothermal alteration of wall rock which introduces clay minerals. What links here related changes upload file special pages permanent link page. The dating of alunite from an area of advanced argillic alteration at nankivel hill provides new data on the timing of hydrothermal fluid activity that links with the c.
In the advanced argillic alteration of lithocap, zunyite is the only mineral containing cl. In general the clay minerals form during the early stage, or advancing front of the alteration and are commonly converted to sericite as the process continues. Mineralogy and ree geochemistry of argillic alteration. Request pdf mineralogy and ree geochemistry of argillic alteration zone of the asbkhan area in northwest of heris, nw iran intrusion of granodioritic and quartzdioritic igneous bodies of. Pdf mapping argillic and advanced argillic alteration in volcanic.
Fracture and bedding planecontrolled advanced argillic alteration within older quartzite units was mapped in a 12kmdiameter halo surrounding the pine grove porphyry molybdenum deposits rockwell and hofstra, 2009b. Regional mapping of phyllic and argillicaltered rocks in the zagros. Digital maps in geospatial pdf format are also provided that show the aster derived interpretive data from the poster. Sericitic and advanced argillic mineral assemblages and. Digital maps in geospatial pdf format are also provided that show the. Mapping argillic and advanced argillic alteration in volcanic rocks, quartzites, and quartz. The detailed paragenesis of clay minerals in hydrothermally altered rocks is imperfectly known and needs much work for its clarification. Mapping argillic and advanced argillic alteration in volcanic rocks, quartzites, and. The general attributes of porphyry copper deposits are summarized below. Ottawa advanced argillic alteration forms in five various 15, mainly shallow acidic environments, producing a variety of minerals that can include kaolinite, alunite and pyrophyllite. Silicification is an extensive phenomenon in this alteration zone that lends a bleached white color to the rocks. Pdf geochemistry of advanced argillic altered rocks in the area of. Argillic alteration and ore deposits economic geology.
Sericitic and advanced argillic mineral assemblages. If you are viewing the pdf, or if you are reading this offline, please visit 10. Characteristics of zunyite in the advanced argillic. Pdf timing of advanced argillic alteration at nankivel. Most of the advanced argillic assemblages at resolution formed at relatively low temperatures, stable with kaolinite and dickite.
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