[PDF] Top 20 Petrology and geochemistry of the igneous rocks from Macao (South China) : Tectono-magmatic implications
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Petrology and geochemistry of the igneous rocks from Macao (South China) : Tectono-magmatic implications
... colour of orthoclase and also, under microscope, by different types of twinning (albite/pericline vs Carlsbad, respectively; ...monoclinic and stable at ...ºC and 900 ºC, microcline is ... See full document
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Geochemistry of basaltic flows from a basalt ring structure of the Serra Geral formation at Água Vermelha dam, Triângulo Mineiro, Brazil : implications for the magmatic evolution of the Paraná‑Etendeka Province.
... review of the characteristics, processes, and spatial distributions of analogs for ...Planetary and Space Science, ...Classification of Igneous Rocks. Chicago: ... See full document
22
Petrogenesis of Bir Madi Gabbro-Diorite and Tonalite-Granodiorite Intrusions in Southeastern Desert, Egypt: Implications for Tectono-Magmatic Processes at the Neoproterozoic Shield
... Sr and Ba (Fig.3). The TGrS rocks define a consider- able calc-alkaline magmatic trend on the AFM diagram ...On the A/CNK versus SiO 2 diagram, the TGrS is mostly ... See full document
9
Petrography, geochemistry and geochronology of the potassic granitoids of the Rio Itacambiruçu Supersuite: implications for the Meso- to Neoarchean evolution of the Itacambira-Monte Azul block
... that the PUp granitoids originated from the partial melting of TTGs, whose signatures are similar to the Porteirinha Complex gneisses, under conditions of relatively low ... See full document
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Paleo- and rock magnetism of the Central Atlantic Magmatic Province (CAMP) from Portugal: global-scale correlations and implications for the paleogeography of Iberia at 200 Ma
... Atlantic Magmatic Province (CAMP) is one of the largest igneous provinces of the Phanerozoic and is believed to be coeval with the biological crisis of ... See full document
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Geochemistry of basaltic flows from a basalt ring structure of the Serra Geral formation at Água Vermelha dam, Triângulo Mineiro, Brazil: implications for the magmatic evolution of the Paraná-Etendeka Province
... ABSTRACT: The Serra Geral Formation belongs to the Paraná-Etendeka Magmatic Province (PEMP) and its geochemical and petrographic characteristics are not ...basaltic and two ... See full document
22
Repositório Institucional da UFPA: Geology, petrology, U-Pb (shrimp) geochronology of the Morrinhos granite -Paraguá terrane, SW Amazonian craton: implications for the magmatic evolution of the San Ignácio orogeny
... in the municipality of Vila Bela da Santíssima Trindade of the state of Mato Grosso, Brazil, in the Paraguá Terrane, Rondonian-San Ignácio Province, in the SW portion ... See full document
18
Geology and petrology of the Salto do Céu Suite: tectonic and stratigraphic implications on the SW Amazonian Craton
... ages of 1403 ± 0.6 Ma and 1382 ± 49 Ma for the intermediate to acid rocks, interpreted as the time of igneous crystallization for felsic magmas that gave rise to ... See full document
20
U-Pb Geochronology, Sr–Nd Geochemistry, Petrogenesis and Tectonic Setting of Gandab Volcanic Rocks, Northeast Iran
... outcomes of U-Pb zircon analysis on the two old- est and youngest samples based on the relative age are presented in Table 3 ...with igneous origin and their growth by ... See full document
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Petrology, geochemistry and tectonomagmatic evolution of Hezar Igneous Complex (Rayen - south of Kerman - Iran): the first description of an arc remnant of the Neotethyan subduction zone
... Hezar Igneous Complex (HIC) in the south-eastern part of Urumieh-Dokhtar magmatic arc, is the most prominent magmatic feature in the Kerman Porphyry Copper Belt, that ... See full document
19
Geology, geochemistry and petrology of basalts from Paraná Continental Magmatic Province in the Araguari, Uberlândia, Uberaba and Sacramento regions, Minas Gerais state, Brazil
... Classification of the basaltic rocks from the studied area according to Peate et ...parameters. The trends observed for major, minor and trace elements in the ... See full document
21
Geochemistry, petrology, and mineralization in volcanic rocks located in south Neyshabour, NE Iran
... igneous rocks are in agreement with plagioclase and amphibole ...result, the crystal fractionation process is specified from the parental ...magma. The trace element ... See full document
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Geochemistry of the Northern Paraná Continental Flood Basalt (PCFB) Province: implications for regional chemostratigraphy
... ABSTRACT: The Paraná Continental Flood Basalt (PCFB) province is one of the largest igneous provinces on Earth, but little is known about the architecture and geochemical ... See full document
23
Geochemistry of minerals, weathering and hidrogeochemistry from the Fonte Santa mine area (NE de Portugal)
... chalcopyrite and occurs included in ...one of the most abundant sulphide minerals and shows “chalcopyrite ...exsolutions of sphalerite show ortogonal alignments (one direction parallel ... See full document
10
Genesis of Soils Formed from Mafic Igneous Rock in the Atlantic Forest Environment
... in the central region of the Paraíba do Sul valley, in southwestern of Rio de Janeiro state (22° 29’ 03’’ to 22° 35’ 27’’ S; 43° 54’ 49’’ to 44° 04’ 05’’W) (Figure ...1). The study area ... See full document
21
RADON EXHALATION FROM GRANITIC ROCKS
... results of experimentally measured radon and thoron activity concentration in the air associated with 24 types of commercial brands of granitic rock presented rather high ...41% ... See full document
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REPOSITORIO INSTITUCIONAL DA UFOP: Geochemistry and isotopic signatures of metavolcanic and metaplutonic rocks of the Faina and Serra de Santa Rita greenstone belts, Central Brazil : evidences for a Mesoarchean intraoceanic arc.
... 6. The geodynamic model for the volcanic and plutonic protoliths that constitute the Faina and Serra de Santa Rita greenstone belts is inserted into an intraoceanic forearc-arc-back-arc ... See full document
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Geochemistry and petrogenesis of post-collisional ultrapotassic syenites and granites from southernmost Brazil: the Piquiri Syenite Massif
... Melting of mantle portions composed mainly of clinopyroxene ± hydrated minerals is largely accepted for the origin of potassic and ultrapotassic magmas ...minettes and associated ... See full document
19
Geochemistry of petroleum: Asphaltenes as a source of geochemistry information
... industrial and anthropogenic activities, demand for energy sources that enable their development will also ...coal and natural gas, are the largest source of non-renewable energy and ... See full document
18
The 1590-1520 Ma Cachoeirinha magmatic arc and its tectonic implications for the Mesoproterozoic SW Amazonian craton crustal evolution
... individualized from the gneissic basement in the Cachoeirinha re- gion according to the geologic mapping published by Saes et ...data) and Carneiro et al. (1992). The authors ... See full document
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