Chemical And Isotopic Trends And Tectonics Of The Milford Gneiss Complex And Darran Batholith Of Northern Fiordland New Zealand
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Chemical And Isotopic Trends And Tectonics Of The Milford Gneiss Complex And Darran Batholith Of Northern Fiordland New Zealand
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Author : Peter Blattner
language : en
Publisher:
Release Date : 2006
Chemical And Isotopic Trends And Tectonics Of The Milford Gneiss Complex And Darran Batholith Of Northern Fiordland New Zealand written by Peter Blattner and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Batholiths categories.
New Zealand Journal Of Geology And Geophysics
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Author :
language : en
Publisher:
Release Date : 2009
New Zealand Journal Of Geology And Geophysics written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with Geology categories.
Spatio Temporal Patterns Of Lower Arc Cooling And Metamorphism Northern Fiordland New Zealand
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Author : Samantha Kelly Gebauer
language : en
Publisher:
Release Date : 2016
Spatio Temporal Patterns Of Lower Arc Cooling And Metamorphism Northern Fiordland New Zealand written by Samantha Kelly Gebauer and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with categories.
The exhumed root of the Triassic to Early Cretaceous continental arc in Fiordland, New Zealand preserves a record of deep crustal arc processes during and following high-flux magmatism from c. 124-115 Ma. We present new LASS-ICP-MS and SHRIMP-RG 206Pb/238U dates, as well as Ti-in-zircon and Zr-in-titanite temperatures for metamorphic zircon and titanite in order to (1) reconstruct the thermal history of northern Fiordland, and (2) illuminate spatio-temporal patterns in arc root metamorphism. Samples were collected over ~50 km along an arc-parallel transect from George Sound ( ~8 kbar) to Milford Sound (~16 kbar) in order to understand the thermal evolution of the arc as a function of paleocrustal depth. Rims that grew on zircon in samples from the Arthur River Complex indicate that Early Cretaceous metamorphism initiated at 134.9 ± 3.1 Ma (T = 720°C) and lasted until 126.5 ± 2.7 Ma (T = 700 °C). Subsequent granulite-facies metamorphic zircon growth occurred from 121.3 ± 1.6 to 116.0 ± 2.3 Ma in Bligh and George Sounds at 830-700°C. These dates and temperatures overlap with existing garnet Sm-Nd dates from the Pembroke granulite (Milford Sound) and likely reflect heating associated with deep crustal emplacement of the Western Fiordland Orthogneiss from c. 125-115 Ma during the final stages of Median Batholith magmatism. Titanite LASS chronology of metasedimentary rocks shows complex spatio-temporal patterns that reveal multiple pulses of titanite growth and/or recrystallization. East of Sutherland Sound, titanites yield a date of 120.6 ± 4.4 Ma and a Zr-in-titanite temperature of 765°C, which is similar to metamorphic zircon results in the region. At George Sound, titanites yield a date of 112.0 ± 2.4 Ma and a temperature of 760°C which overlaps with values reported in central Fiordland from Caswell to Breaksea Sounds. Younger dates of 104.8 ± 1.6 and 94.0 ± 2.3 Ma also occur in Bligh and George Sounds, and yield temperatures of 930 and 840°C, respectively. These dates and temperatures indicate that titanite growth and/or recrystallization occurred during multiple pulses of lower crustal heating which we speculate may have resulted from either lithospheric thinning related to extension and/or episodic foundering of a high-density arc root produced during the arc flare-up event.
Volcanic Rocks And Features
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Author :
language : en
Publisher:
Release Date : 1995
Volcanic Rocks And Features written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Physical geology categories.
Gondwana Master Basin Of Peninsular India Between Tethys And The Interior Of The Gondwanaland Province Of Pangea
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Author : J. J. Veevers
language : en
Publisher: Geological Society of America
Release Date : 1995-01-01
Gondwana Master Basin Of Peninsular India Between Tethys And The Interior Of The Gondwanaland Province Of Pangea written by J. J. Veevers and has been published by Geological Society of America this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995-01-01 with Science categories.
Ultrahigh Pressure Metamorphism
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Author : Bradley R. Hacker
language : en
Publisher: Geological Society of America
Release Date : 2006
Ultrahigh Pressure Metamorphism written by Bradley R. Hacker and has been published by Geological Society of America this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Science categories.
Yvain
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Author : Chretien de Troyes
language : en
Publisher: Yale University Press
Release Date : 1987-09-10
Yvain written by Chretien de Troyes and has been published by Yale University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1987-09-10 with Poetry categories.
The twelfth-century French poet Chrétien de Troyes is a major figure in European literature. His courtly romances fathered the Arthurian tradition and influenced countless other poets in England as well as on the continent. Yet because of the difficulty of capturing his swift-moving style in translation, English-speaking audiences are largely unfamiliar with the pleasures of reading his poems. Now, for the first time, an experienced translator of medieval verse who is himself a poet provides a translation of Chrétien’s major poem, Yvain, in verse that fully and satisfyingly captures the movement, the sense, and the spirit of the Old French original. Yvain is a courtly romance with a moral tenor; it is ironic and sometimes bawdy; the poetry is crisp and vivid. In addition, the psychological and the socio-historical perceptions of the poem are of profound literary and historical importance, for it evokes the emotions and the values of a flourishing, vibrant medieval past.
Terrane Processes At The Margins Of Gondwana
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Author : Alan Vaughan
language : en
Publisher: Geological Society of London
Release Date : 2005
Terrane Processes At The Margins Of Gondwana written by Alan Vaughan and has been published by Geological Society of London this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with Science categories.
The Australide orogen, the southern hemisphere Neoproterozoic to Mesozoic terrane accretionary orogen that forms the palaeo-Pacific margin of Gondwana, is one of the largest and longest-lived orogens on Earth. This book brings together a series of reviews and multidisciplinary research papers that comprehensively cover the Australides from the Tasman orogen of eastern Australia to the Neoproterozoic and Palaeozoic orogens of South America, taking in New Zealand and Antarctica along the way. It deals with the evolution of the southern Gondwana margin, as it grew during a series of terrane accretion episodes from the late Proterozoic through to final fragmentation in mid-Cretaceous times. Global perspectives are given by comparison with the Palaeozoic northern Gondwana margin and documentation of world-wide terrane accretion episodes in the Late Triassic-Early Jurassic and mid-Cretaceous. The Tasmanides of eastern Australia, and the terrane histories of New Zealand and southern South America are given comprehensive up-to-date reviews.
Limnogeology Progress Challenges And Opportunities
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Author : Michael R. Rosen
language : en
Publisher: Springer Nature
Release Date : 2021-04-24
Limnogeology Progress Challenges And Opportunities written by Michael R. Rosen and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-04-24 with Science categories.
This book honors the career of Professor Elizabeth Gierlowski-Kordesch who was a pioneer and leader in the field of limnogeology since the 1980s. Her work was instrumental in guiding students and professionals in the field until her untimely death in 2016. This collection of chapters was written by her colleagues and students and recognize the important role that Professor Gierlowski-Kordesch had in advancing the field of limnogeology. The chapters show the breadth of her reach as these have been contributed from virtually every continent. This book will be a primary reference for scientists, professionals and graduate students who are interested in the latest advances in limnogeologic processes and basin descriptions in North and South America, Europe, Africa, and China. *Free supplementary material available online for chapters 3,11,12 and 13. Access by searching for the book on link.springer.com
Crustal Permeability
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Author : Tom Gleeson
language : en
Publisher: John Wiley & Sons
Release Date : 2016-11-30
Crustal Permeability written by Tom Gleeson and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-11-30 with Technology & Engineering categories.
Permeability is the primary control on fluid flow in the Earth’s crust and is key to a surprisingly wide range of geological processes, because it controls the advection of heat and solutes and the generation of anomalous pore pressures. The practical importance of permeability – and the potential for large, dynamic changes in permeability – is highlighted by ongoing issues associated with hydraulic fracturing for hydrocarbon production (“fracking”), enhanced geothermal systems, and geologic carbon sequestration. Although there are thousands of research papers on crustal permeability, this is the first book-length treatment. This book bridges the historical dichotomy between the hydrogeologic perspective of permeability as a static material property and the perspective of other Earth scientists who have long recognized permeability as a dynamic parameter that changes in response to tectonism, fluid production, and geochemical reactions.