Results 151 to 160 of about 5,043 (208)
Slab thermal transitions in the Aeolian arc driven by sub-slab mantle upwelling in the early Pleistocene. [PDF]
Nat CommunZhang Y, Di Renzo V, An S, Li Y.
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Investigation of iron ore potential in north-central Nigeria, using high-resolution aeromagnetic dataset and remote sensing approach. [PDF]
HeliyonAbubakar F.
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Exploring a long distance, amagmatic, across-suture orogenic geothermal system: Sri Lanka's foreland hot springs. [PDF]
iScienceBandara D, Smit J, Wohnlich S, Heinze T.
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Caledonian metamorphism of metasediments from Franz Josef Land
Gff, 2019 The petrography, detrital zircon age distribution and 40Ar–39Ar ages of three samples from the Nagurskaya drill core of westernmost Franz Josef Land have been analyzed and are compared to similar rocks from the Lomonosov Ridge. The analyzed rocks, from near the base of the drill hole, consist of fine-grained psammitic to semipelitic schists ...
Sarah Sherlock +2 more
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Petrogenetic meaning of zircon growth stages in metasediments
, 2012 The Cenerigneisses, amphibolite facies metasediments from Serie dei Laghi (Southern Alps), contain heterogeneous zircon populations which gave ages spanning from around 430 to more than 1000 Ma. A detailed chemical study of zircons, supported by careful evaluation of cathodoluminescence images, shows that it is possible to recognize and characterize ...
V. Caironi
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Geothermobarometry in metasediments of the southern Grossvenediger area (Tauern Window, Austria)
Journal of Metamorphic Geology, 1990Metasediments in the southern Grossvenediger area (Tauern Window, Austria) were studied along a cross‐section through rocks of increasing metamorphic grade from the margin of the Tauern Window in the south to the base of the Upper Schieferhülle, including the Eclogite Zone, in the north.In the southern part of the cross‐section there is no evidence for
exaly +2 more sources
Geochimica Et Cosmochimica Acta, 2005 New and published major and trace element abundances of elastic metasediments (mainly garnet-biotite-plagioclase schists) from the similar to 3.8 Ga Isua Greenstone Belt (IGB), southern West Greenland, are used in an attempt to identify the compositional
Balz Kamber +2 more
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Lithostratigraphy of Paleozoic metasediments in southern Fiordland, New Zealand
New Zealand Journal of Geology and Geophysics, 2023ABSTRACT The lithostratigraphy of Early Paleozoic metasediments from southern Fiordland is described, with three groups and 14 formations formally defined. In southwest Fiordland, the Fanny Bay Group is a quartz‐rich succession of metamorphosed sandstone, mudstone, and quartzite; the Cameron Group is a lithologically variable ...
Richard Jongens +2 more
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Geological Society, London, Special Publications, 2008
Abstract Major discoveries in metamorphic petrology, as well as other geological disciplines, have been made in the Alps. The regional distribution of Late Cretaceous–Tertiary metamorphic conditions, documented in post-Hercynian metasediments across the entire Alpine belt from Corsica–Tuscany in the west to Vienna in the east, is presented in
Bousquet, Romain +9 more
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Abstract Major discoveries in metamorphic petrology, as well as other geological disciplines, have been made in the Alps. The regional distribution of Late Cretaceous–Tertiary metamorphic conditions, documented in post-Hercynian metasediments across the entire Alpine belt from Corsica–Tuscany in the west to Vienna in the east, is presented in
Bousquet, Romain +9 more
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Ammonium as a biomarker in Precambrian metasediments
Precambrian Research, 2001Abstract The following article assesses the potential of ammonium as a biomarker in Precambrian metasediments. A modern marine environment is considered to highlight the processes that contribute to the isotopic composition of organic nitrogen, notably the roles played by nitrogen-fixing organisms (cyanobacteria) and denitrifying bacteria. The carbon
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