Hawaiite is an olivine basalt with a composition between alkali basalt and mugearite. It was first used as a name for some lavas found on the island of...

most common rock on Mount Takahe, phonolite being less common. Basanite, hawaiite, and mugearite are uncommon, but the occurrence of benmoreite and pantellerite...

the MEVC are mafic alkali basalts and hawaiites, which comprise about 60% of the volcanic complex. MEVC hawaiites are thought to be the product of partial...

and analcitic series.: Ch6  The sodic series evolves through hawaiite or nepheline hawaiite through mugearite or nepheline mugearite and benmoreite or nepheline...

rock – A volcanic rock with a composition between basalt and trachyte Hawaiite – Volcanic rock – a sodic type of trachybasalt, typically formed by ocean...

flows. 3 5,000–10,000 alkali basalt with minor amounts of picritic basalt, hawaiite and ankaramite 15 185 mostly southern flank and summit Spatter deposits...

rocks are of basaltic type, consisting mostly of alkaline basalts, some hawaiites, and some gabbro intrusions, especially on the islet Toopua. They come...

main volcanic rocks of the Big Raven Formation are alkali basalts and hawaiites, although a small volume of trachyte comprises the Sheep Track Member...

eruptions of highly mobile lava flows. Volcanic rocks such as alkali basalt, hawaiite, trachybasalt, benmoreite, tristanite, mugearite, trachyte, comendite and...

Trilogy. The island is composed mostly of basalt, mostly alkali basalt and hawaiites, and to a lesser extent mugearites. The island has a population of 335...

from Terevaka united it to the larger whole. The island is dominated by hawaiite and basalt flows which are rich in iron and show affinity with igneous...

Saudi Arabia. These mountains contrast with the darker appearance of the hawaiite lava flows and domes which dominate the lava fields, such as Jabal Qidr...

Formation. The Raspberry Formation consists of flat-lying alkali basalt and hawaiite flows. These flows are rusty brown and are interbedded with reddish-brown...

Eyjafjallajökull. An origin by fractionation from basanite through nepheline hawaiite to nepheline benmoreite has been demonstrated for a volcanic suite in the...

between 250,000 and 70–65,000 years ago. The most recent volcanic flows are hawaiites and mugearites: they are the post-shield Laupāhoehoe Volcanics, erupted...

decide. Ph (Phonolite) S1 (Trachybasalt)—*Sodic and potassic variants are Hawaiite and Potassic Trachybasalt. S2 (Basaltic trachyandesite)—*Sodic and potassic...

from growing on the island until approximately 15,000 years ago. Basalt, hawaiite, mugearite and trachyte are the dominant volcanic rocks comprising Campbell...

features including the extinct caldera of Arakao, Cenozoic lava flows of hawaiite to trachyte composition, volcanic cones, tuff rings and one of the largest...

rising to over 1000 meters. It is composed mainly of basalt, picrite and hawaiite. Its age is dated between 2.46 and 1.81 million years. The second caldera...

south of the highlands. The Nido Formation consists of alkali basalt and hawaiite lava flows that issued from multiple eruptive centres. K–Ar dating has...

basalt flows erupted during the Palaeocene epoch. Together with flows of hawaiite and mugearite, these form the Eigg Lava Formation. The Sgùrr is formed...

further divided into sodium-rich hawaiite and potassium-rich potassic trachybasalt, with wt% Na2O > K2O + 2 for hawaiite. The intrusive equivalent of trachybasalt...

Mugearite Igneous rock Mugearite lava flow (on right); flow on left is hawaiite; at North Berwick, Scotland Composition oligoclase, olivine...

through them. Rotuma is a shield volcano made of alkali-olivine basalt and hawaiite, with many small cones. It reaches 256 metres (840 ft) above sea level...

pile of hawaiite flows that are four to eight times thicker than those of the Rainbow Range. The abnormal thicknesses of the Anahim Peak hawaiite flows...

found a variety of different types including alkali-basalt, basanite and hawaiite. Madeira alternated between slow lava flows and violent eruptions, as reefs...

along the coast. These vents have produced alkali basalt, basanite and hawaiite. Basalt occurs at all four volcanoes. Phonolite and trachyte are found...

formed in the absence of ice. The cone is constructed from basalt and hawaiite including lava bombs in its sides. Argo Point is related to Seal Nunataks...

The igneous rocks of all the Line Islands consist of alkali basalts and hawaiites, and are similar to those found in the Hawaiian Islands. Several models...

from Terevaka united it to the larger whole. The island is dominated by hawaiite and basalt flows which are rich in iron and show affinity with igneous...