Definition of Tholeiite. Meaning of Tholeiite. Synonyms of Tholeiite

- and rhyolite. The variety of basalt in the series was originally called tholeiite but the International Union of Geological Sciences recommends that tholeiitic...
- Most of the moais in Easter Island are carved out of tholeiite basalt tuff....
- Rajmahal volcanics are predominantly tholeiitic basalt, quartz tholeiite, olivine tholeiite and alkali basalt. The Intertrappean Beds are composed of sedimentary...
- 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...
- in the ****anese island arc system where the volcanic rocks change from tholeiite—calc-alkaline—alkaline with increasing distance from the trench. Some...
- in the ****anese island arc system where the volcanic rocks change from tholeiite—calc-alkaline—alkaline with increasing distance from the trench. Several...
- fed lava to the surface. Flood basalts are most often quartz tholeiites. Olivine tholeiite (the characteristic rock of mid-ocean ridges) occurs less commonly...
- in the mantle. Volcanoes on the Coastal Range and Green Island erupted tholeiite andesite, and volcanic explosive fragments. The volcanoes erupted from...
- residue of earlier arc tholeiite generation which is metasomatically enriched in LREE before boninite volcanism, or arc tholeiites and boninites can be...
- trace-element composition. Ocean island basalts include both tholeiites and alkali basalts, with tholeiite predominating early in the eruptive history of the island...