Diamonds from Dachine, French Guiana : a unique record of Early Proterozoic subduction [PDF]
This research was supported by NERC grant NE/J008583/1 to MJW and SCK.Diamonds from Dachine, French Guiana, are unique among worldwide diamond populations.
Bulanova, Galina P. +6 more
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Rock weathering along small mountainous rivers: Sierra de las Minas, Guatemala [PDF]
Studies of chemical weathering in small mountainous rivers have shown their disproportional role in chemical weathering and delivery of dissolved and particulate materials on a global scale. Previous stream water analyses from La Sierra de Las Minas have
Miller, Laura
core
Tectonostratigraphic terranes and zones juxtaposed along the Mid-Hungarian Line: their contrasting evolution and relationships [PDF]
The Mid-Hungarian (or Zagreb-Zemplin) Line of WSW–ENE strike divides the Pannonian basement into two mega-units, the Tisia Composite Terrane in the SE and the ALCAPA Composite Terrane in the NW. They became juxtaposed no earlier than the Middle Miocene
Brezsnyánszky, Károly +4 more
core +1 more source
Rb-Sr and in situ 40Ar/39Ar dating of exhumation-related shearing and fluid-induced recrystallization in the Sesia zone (Western Alps, Italy) [PDF]
The Sesia zone in the Italian Western Alps is a piece of continental crust that has been subducted to eclogite-facies conditions and records a complex metamorphic history.
Glodny, J +3 more
core +2 more sources
OXIDES AND SILICATES OF RARE AND RARE-EARTH ELEMENTS IN ALKALINE ROCKS OF THE ILMENOGORSKY BLOCK (SOUTHERN URALS) [PDF]
A significant part of the REE and rare elements in the rocks of the Ilmenogorsky block forms its own minerals. Oxides and silicates of rare and rare-earth elements in alkaline rocks of Ilmenogorsky block (Southern Urals) include oxynatropyrochlore ...
E.P. Makagonov +2 more
doaj
The early Cretaceous Ciénaga Marbles that crop out in the NW foothills of the Santa Marta Massif (Colombian Caribbean region) present an epigenetic mineral assemblage (skarn-type), overprinting the metamorphic mineral assemblage previously developed ...
Oscar Mauricio Castellanos-AlarcónCarlos +2 more
doaj +1 more source
Epidote populations in contaminated granitic pegmatites from Northern Portugal [PDF]
Publicado em "Acta Mineralogica-Petrographica.
Dias, Patrícia Sofia Alves +1 more
core
A case for hornblende dominated fractionation of arc magmas: the Chelan Complex (Washington Cascades) [PDF]
Amphibole fractionation in the deep roots of subduction-related magmatic arcs is a fundamental process for the generation of the continental crust.
Dessimoz, Mathias +2 more
core
Triaxial compression testing of multicomponent geomaterials from quartz-poor (syenitic) systems [PDF]
This paper focuses on mafic microgranular enclaves enclosed in quartz-poor igneous rocks and their effect on strength properties of the rock massif. The study examines host rock–enclave multicomponent geomaterials from enclave-bearing syenitic rocks from
Krmíček, Lukáš, Závacký, Martin
core +2 more sources
Why allanite may swindle about its true age
Allanite from the Tertiary Rieserferner pluton (Austrian Alps) is texturally and chemically heterogeneous. Continuous covariation trends reflect coupled substitution of Ca+Al vs. Fe+REE+Th in allanite, whereas systematic variations in La/Nd demonstrate the increasingly stronger depletion of LREE in the melt during its crystallization. Allanite samples (
Romer, R., Siegesmund, S.
openaire +5 more sources

