Alkaline Magmatism In Central Eastern Paraguay

Download or read book Alkaline Magmatism in Central-eastern Paraguay written by Piero Comin-Chiaramonti and published by EdUSP. This book was released on 1996 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Alkaline magmatism in Central-Eastern Paraguay written by Piero Comin-Chiaramonti and published by . This book was released on 1996 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mesozoic to Cenozoic alkaline magmatism in the brazilian platform written by Piero Comin-Chiaramonti and published by EdUSP. This book was released on 2005 with total page 758 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Plates, Plumes, and Planetary Processes written by Gillian R. Foulger and published by Geological Society of America. This book was released on 2007 with total page 1012 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents a collection of papers discussing various hypotheses and models of planetary plumes.

Download or read book Early Cretaceous Volcanism in Central and Eastern Argentina During Gondwana Break-Up written by Silvia Leonor Lagorio and published by Springer. This book was released on 2016-03-23 with total page 145 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book analyzes the Early Cretaceous volcanic processes in Misiones Province and in Sierra Chica de Córdoba (Argentina). The volcanism in Misiones is tholeiitic and belongs to the Parana Magmatic Province (PMP), which extends throughout South America. In contrast, the volcanism in Córdoba is geographically restricted and of alkaline nature, representing a potassic locality peripheral to the PMP. To understand the causes of and geodynamic processes involved in these volcanisms, a new 40Ar /39Ar of 129.6 ± 1 Ma of a trachyte from Sierra Chica de Córdoba is presented. This dating points out that the volcanism in Sierra Chica de Córdoba slightly postdates PMP lavas. Moreover, complementary geochemical analyses from Misiones Province are presented and compared with those from the whole PMP in order to characterize its source

Download or read book Plates vs Plumes written by Gillian R. Foulger and published by John Wiley & Sons. This book was released on 2011-06-13 with total page 445 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the advent of the mantle plume hypothesis in 1971, scientists have been faced with the problem that its predictions are not confirmed by observation. For thirty years, the usual reaction has been to adapt the hypothesis in numerous ways. As a result, the multitude of current plume variants now amounts to an unfalsifiable hypothesis. In the early 21st century demand became relentless for a theory that can explain melting anomalies in a way that fits the observations naturally and is forward-predictive. From this the Plate hypothesis emerged–the exact inverse of the Plume hypothesis. The Plate hypothesis attributes melting anomalies to shallow effects directly related to plate tectonics. It rejects the hypothesis that surface volcanism is driven by convection in the deep mantle. Earth Science is currently in the midst of the kind of paradigm-challenging debate that occurs only rarely in any field. This volume comprises its first handbook. It reviews the Plate and Plume hypotheses, including a clear statement of the former. Thereafter it follows an observational approach, drawing widely from many volcanic regions in chapters on vertical motions of Earth's crust, magma volumes, time-progressions of volcanism, seismic imaging, mantle temperature and geochemistry. This text: Deals with a paradigm shift in Earth Science - some say the most important since plate tectonics Is analogous to Wegener's The Origin of Continents and Oceans Is written to be accessible to scientists and students from all specialities This book is indispensable to Earth scientists from all specialties who are interested in this new subject. It is suitable as a reference work for those teaching relevant classes, and an ideal text for advanced undergraduates and graduate students studying plate tectonics and related topics. Visit Gillian's own website at http://www.mantleplumes.org

Download or read book Rendiconti Lincei written by and published by . This book was released on 2007 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: