Results 1 to 10 of about 48,430 (124)

Geochronology of the Gabbro–Mafic Microgranular Enclaves–Granite Associations in the Gejiu District, Yunnan Province and Their Geodynamic Significance

open access: yesActa Geologica Sinica, 2012
Many igneous rocks distribute in Gejiu tin polymetallic ore-field at Yunnan province, rocks including basalt, gabbro, mafic microgranular enclaves, granites (porphyritic granite and equigranular granite) and akaline rocks.
Yanbo Cheng
exaly   +2 more sources

Top-down structures of mafic enclaves within the Valle Fértil magmatic complex (Early Ordovician, San Juan, Argentina) [PDF]

open access: yesGeologica Acta, 2009
Magmatic structures related to the mechanical interaction between mafic magmas and granitoids have been studied in the Valle Fértil calc-alkaline igneous complex, Argentina.
A. CASTRO   +7 more
doaj   +1 more source

Contribution from Mafic Melt to the Zhireken Porphyry Mo-Cu Deposit, Eastern Transbaikalia, Russia: Evidence from Mafic Microgranular Enclaves [PDF]

open access: yesInternational Journal of Economic and Environment Geology, 2010
Mafic microgranular enclaves (MME) were formed in felsic ore-bearing porphyries from the Zhireken por-phyry Mo-Cu deposit, eastern Transbaikalia, Russia. Porphyry rocks were emplaced during the Upper Jurassic.
ANITA, N. BERZINA , VITALY, I. SOTNIKOV
doaj   +1 more source

Magma mixing in the Karamaili granite belt of Eastern Junggar: evidence from A2-type granites and their mafic microgranular enclaves [PDF]

open access: yesFrontiers in Earth Science
The Karamaili Orogenic Belt forms an essential part of the southernmost margin of the Eastern Junggar Orogenic Belt. The Late Carboniferous granitic belt of the Karamaili belt provides a valuable natural setting for studying the evolution of silicic ...
Yafei Sun   +7 more
doaj   +2 more sources

The Quartz-Dioritic Hospitais Intrusion (SW Iberian Massif) and Its Mafic Microgranular Enclaves — Evidence for Mineral Clustering [PDF]

open access: yesLithos, 2015
The Hospitais pluton is an elliptical body, with its long axis oriented WNW–ESE, that belongs to the Évora Massif(Iberian Variscan belt). This intrusion has a quartz-dioritic composition, with plagioclase, quartz, amphibole(hornblende, but locally also ...
Patrícia Moita   +2 more
exaly   +2 more sources

Genesis and Evolution of Mafic Microgranular Enclaves Through Various Types of Interaction Between Coexisting Felsic and Mafic Magmas

open access: yesEarth and Environmental Science Transactions of the Royal Society of Edinburgh, 1992
Thermal, mechanical and chemical exchange occurs between felsic and mafic magmas in dynamic magma systems. The occurrence and efficiency of such exchanges are constrained mainly by the intensive parameters, the compositions, and the mass fractions of the
Jean Didier, Bernard Barbarin
exaly   +2 more sources

Petrogenesis of the Morobe Granodiorite and their shoshonitic mafic microgranular enclaves in Maramuni arc, Papua New Guinea

open access: yesOpen Geosciences, 2023
The Miocene tectonics of Papua New Guinea, where subduction, arc-continent collision, and changes in subduction direction are considered to have occurred, is very complex and various tectonic models have been proposed.
Hoshide Takashi   +2 more
doaj   +2 more sources

Petrologic Reconstruction of Sulfur Transfer Processes During Mafic Magma Recharge: Insight From Anhydrite-Bearing Mafic Microgranular Enclaves

open access: yesGeochimica Et Cosmochimica Acta
Supplementary Tables S1-S6 for "Petrologic reconstruction of sulfur transfer processes during mafic magma recharge: Insight from anhydrite-bearing mafic microgranular enclaves".
Madeleine Humphreys   +2 more
exaly   +2 more sources

Geochemistry of Mafic Microgranular Enclaves in the Tamdere Quartz Monzonite, South of Dereli/Giresun, Eastern Pontides, Turkey

open access: yesChemie Der Erde, 2008
Rocks of the Late Cretaceous Tamdere Quartz Monzonite, constituting a part of the Eastern Pontide plutonism, include mafic microgranular enclaves (MMEs) ranging from spheroidal to ellipsoidal in shape, and from a few centimeters to decimeters in size ...
Sabah Yilmaz Şahin
exaly   +2 more sources

Mineralogy, Whole-Rock and Sr–Nd Isotope Geochemistry of Mafic Microgranular Enclaves in Cretaceous Dagbasi Granitoids, Eastern Pontides, NE Turkey: Evidence of Magma Mixing, Mingling and Chemical Equilibration

open access: yesChemie Der Erde, 2009
Rocks of the Late Cretaceous Dagbasi Pluton (88-83Ma), located in the eastern Pontides, include mafic microgranular enclaves (MMEs) ranging from a few centimetres to metres in size, and from ellipsoidal to ovoid in shape.
Emre Aydınçakır, Abdullah Kaygusuz
exaly   +2 more sources

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