Luff, The Chalt Volcanics, Kohistan, Pakistan N: High-Mg Tholeiitic
and Low-Mg Calc-Alkaline Volcanism in a Cretaceous Iceland Arc.
Different geochemical studies on the rocks of the Arquia Complex reveal an oceanic origin from tholeiitic
basalts in MORB or N-MORB environments types (Villagomez et al.
2011) grouped this products in the Basal Tholeiitic
Supersynthem and the literature data are agree to date the eruptive phenomena at about 500000 years ago.
Mineral-melt interaction during late stage crystallization has been identified in rocks of variable geochemical affinity, including tholeiitic
(Gillis, 1996; Tribuzio et al.
Pakistan: High Mg tholeiitic
and low - Mgcalc- alkaline volcanism in a Cretaceous island arc.
dyke swarm of the arraial do cabo peninsula (SE Brazil): [sup.
Furthermore, Listice basalt belongs to tholeiitic
suite and could have originated by a low degree of partial melting of a garnet peridotite source (Fig.
The Quaternary Moctezuma volcanic field: a tholeiitic
to alkali basaltic episode in the central Sonoran Basin and Range Province, Mexico.
1996; Kingsley et al, 2002; Simons et al, 2002) show mixtures of tholeiitic
and alkaline basalts at various sites, so the hotpost should be beneath Salas y Gomez Island, in contrast to Haase et al.
11,12) Indeed, crust-derived silicic magmas play a key role in magmatism in the NE Japan arc: they erupt directly as tholeiitic
magmas or act as an end-member component in the mixing that generates calc-alkaline magmas.
Late Triassic to Early Jurassic tholeiitic
dykes and basin flood basalts in the region are located in Figure 2.
This gold project covers a folded (tilted syncline towards the south; north dipping) volcanic sequence composed of calc-alkaline sinter to lapillis-blocks felsic-intermediate tuffs (WABAMISK Formation), banded iron-formation (BIF)/ chert, intermediate and tholeiitic