- and rhyolite. The
variety of
basalt in the
series was
originally called tholeiite but the
International Union of
Geological Sciences recommends that tholeiitic...
- fed lava to the surface.
Flood basalts are most
often quartz tholeiites.
Olivine tholeiite (the
characteristic rock of mid-ocean ridges)
occurs less commonly...
-
magmas (wt%)
Magma composition H2O
concentration wt % MORB (
tholeiites) 0.1 – 0.2
Island tholeiite 0.3 – 0.6
Alkali basalts 0.8 – 1.5
Volcanic arc basalts...
- trace-element composition.
Ocean island basalts include both
tholeiites and
alkali basalts; the
tholeiites predominate early in the
eruptive history of the island...
- Most of the
moais in
Easter Island are
carved out of
tholeiite basalt tuff....
- in the ****anese
island arc
system where the
volcanic rocks change from
tholeiite—calc-alkaline—alkaline with
increasing distance from the trench. Some...
- the El
Cobre Group,
Sierra Maestra,
Eastern Cuba: A case of
island arc
tholeiites Source: Acta Geológica Hispánica 33 (1–4) 57–74 Chiappy-Jhones C., Rico-Gray...
- ; Brügmann, G.; Kent, R. W. (2004). "Origin of
Cretaceous continental tholeiites in
southwestern Australia and
eastern India:
insights from Hf and Os isotopes"...
- the
adjacent Bárðarbunga
volcanic system.
While the
dominant magma is
tholeiite basalt,
samples of some
rocks carried in the Kverkjökull
glacier have...
-
marine over the
entire region,
which included instances of evaporates,
tholeiite fissural magmas, lava flows,
volcanic ash and pyroclasts. The area of...
