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.
2009):
Basanites 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.
