Bowie glass and whole-rock analyses span a wide range of compositions, from basanite
to near-trachyte, and cover the entire compositional range for the Pratt--Welker and other Gulf of Alaska seamount chains (Fig.
The volcanics in Bhm where least altered are petrographically basanite and alkali- basalt contain phenocrysts of olivine and augite with a groundmass consisting of plagioclase, pargasite, phlogopite and opaque and glassy material.
While those from Bhm are tephrite- basanite, basalt and picro-basalt and are alkaline in nature.
Phillipsite-K (with dominant potassium) was identified recently in zeolite assemblages of basanite
diatre-mes from Jezova and Jeleni hora near Bela pod Bezdezem, northern Bohemia.
Mikasaite and basanite
are not usually reported as primary minerals present in coal (e.
and crustal contamination in the Cartagena volcano field (South-East of Spain).
The volcanics are mainly basanites
and tephrites, mildly to strongly alkaline, and akin to the intra-plate volcanic rock series.
Teschenites and basanites
from Guayacan Formation, are relative high in [P.
K-Ar and paleomagnetic data from Neogene basanites
near Lqdek Zdroj, Sudetes Mts.
2006): Lithospheric contributions to high-MgO basanites
from the Cumbre Vieja volcano, La Palma, Canary Islands and evidence for temporal variation in plume influence.
1998, Changes of the structural and physico-chemical properties of the remolten nefelinitic basanites
Basaltoid rocks are represented here by predominant tephrites and basanites
, rare foidites, and singular basalts and trachybasalts (Bolewski and Parachoniak, 1982; Kozlowska-Koch, 1987; Wierzcholowski, 1993; Lorenc et al.