Definition of Shonkinite. Meaning of Shonkinite. Synonyms of Shonkinite

- Shonkinite is an intrusive igneous rock found in few places in the world. It is unique in having low silica, feldspathoid minerals, and large blocky crystals...
- rhyolite type of volcanic rock Scoria – Dark vesicular volcanic rock Shonkinite – Intrusive igneous rock – a plutonic rock Sovite – Igneous rock – A co****-grained...
- than calcic plagioclase theralites grade into foidal syenite, including shonkinite.[citation needed] Pyroxene in these rocks may be of green colour or purplish-brown...
- monzonite Quartzolite Rhyodacite Rhyolite Comendite Pantellerite Scoria Shonkinite Sovite Syenite Tachylyte Tephriphonolite Tephrite Tonalite Trachyandesite...
- form in the cooling magma. In other cases less viscous magma such as shonkinite may form phenocrysts of augite at depth, then inject through a vertical...
- include ijolite, melteigite, teschenite, lamprophyres, phonolite, foyaite, shonkinite, silica undersaturated foid-bearing pyroxenite (es****ite), and nepheline...
- the largest eruptive centers in the Central Montana Alkaline Province. Shonkinite, latite, & tinguatite are among the most common igneous rock compositions...
- Adel Mountains Volcanic Field is a significant and abundant source of shonkinite, a very uncommon type of intrusive igneous rock found primarily in Montana...
- between two layers of sedimentary rock. Significant amounts of syenite and shonkinite can be found in the laccolith. The Shonkin Sag laccolith is cited by geologists...
- complex intruded older Precambrian rocks with nepheline syenite, gabbro, shonkinite and clinopyroxenite. Alkali basalt erupted in Paraiba and Rio Grande do...