Results 101 to 110 of about 446 (178)

Systematization of u-pb zircon ages of granitoids from the copper porphyry deposits on the urals

open access: yesЛитосфера, 2017
There is a generalization of U-Pb age of zircons from the copper-porphyry deposits of the eastern slope of the Urals. Approved reserves of the largest ones are about 1.4-1.8 Mt of Cu (at an average content of 0.4-0.6 wt % of Cu).
Anatolii I. Grabezhev   +3 more
doaj   +2 more sources

The geodynamic significance of shoshonitic plutonism at the Ossa-Morena Zone, Portugal

open access: yes, 2018
In this meeting we will start by addressing the “K problem” as stated by Germaine A. Joplin (1968). Since then the meaning and classification of high-K rocks and in particularly of shoshonites, have been a matter of debate. Recently, there has been a growing interest in the occurrence of post-collisional high-k granitoids with mafic enclaves in the ...
openaire   +2 more sources

The deep magmatic system of the Campi Flegrei caldera (Italy).

open access: yes, 2008
Melt inclusions in phenocrysts of the Minopoli2 shoshonite and Fondo Riccio latite eruptive products (Campi Flegrei caldera; 10.2 to 9.5 ka BP) constrain the nature of deep Phlegraean magmatic fluids, their role in volcanism and give new insights ...
CIVETTA L   +16 more
core   +1 more source

Uncovering the eruptive patterns of the 2019 double paroxysm eruption crisis of Stromboli volcano. [PDF]

open access: yesNat Commun, 2021
Andronico D   +12 more
europepmc   +1 more source

Geochemical constraints on the genesis of the Saricakaya intrusive rocks, Turkey: Late Paleozoic crustal melting in the central Sakarya Zone

open access: yes, 2010
The Sakarya Zone is intruded by several Late Paleozoic granitoids, of which the Saricakaya intrusive rocks in the central Sakarya (Eskisehir) region, is the least-studied.
Ilbeyli, N.   +4 more
core   +1 more source

Petrogenetic evidences in geodynamics and placement of Nordoz intrusive masses in Alborz-Azerbaijan structural zone

open access: yesJournal of Economic Geology
The Oligocene Nordoz intrusive complex is located in the eastern region of Siehroud, within the East Azerbaijan province, and within the Alborz-Azerbaijan structural zone.
Shahryar Mahmoudi   +4 more
doaj   +1 more source

Gravity modeling finds a large magma body in the deep crust below the Gulf of Naples, Italy. [PDF]

open access: yesSci Rep, 2018
Fedi M   +5 more
europepmc   +1 more source

Plinian vs. caldera-forming eruptions and their controlling factors: the case of Ventotene, Tyrrhenian Sea, central Italy

open access: yes, 2023
Among the physico-chemical factors of magmas controlling the dynamics of explosive eruptions, volatile concentration and exsolution depth play relevant roles.
Gaeta M   +6 more
core  

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