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There is a page named "Shonkinite" on Wikipedia
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...6 KB (694 words) - 12:27, 2 December 2023- rhyolite type of volcanic rock Scoria – Dark vesicular volcanic rock Shonkinite – Intrusive igneous rock – a plutonic rock Sovite – Igneous rock – A coarse-grained...14 KB (2,208 words) - 23:33, 16 April 2024
monzonite Quartzolite Rhyodacite Rhyolite Comendite Pantellerite Scoria Shonkinite Sovite Syenite Tachylyte Tephriphonolite Tephrite Tonalite Trachyandesite...7 KB (539 words) - 08:58, 16 June 2024- than calcic plagioclase theralites grade into foidal syenite, including shonkinite.[citation needed] Pyroxene in these rocks may be of green colour or purplish-brown...3 KB (416 words) - 21:33, 26 April 2024
include ijolite, melteigite, teschenite, lamprophyres, phonolite, foyaite, shonkinite, silica undersaturated foid-bearing pyroxenite (essexite), and nepheline...19 KB (2,085 words) - 11:20, 16 June 2024
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...22 KB (2,671 words) - 03:33, 11 February 2024
the largest eruptive centers in the Central Montana Alkaline Province. Shonkinite, latite, & tinguatite are among the most common igneous rock compositions...6 KB (522 words) - 05:51, 22 November 2023
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...8 KB (1,065 words) - 16:34, 27 October 2023
Adel Mountains Volcanic Field is a significant and abundant source of shonkinite, a very uncommon type of intrusive igneous rock found primarily in Montana...17 KB (1,862 words) - 22:11, 5 December 2023- complex intruded older Precambrian rocks with nepheline syenite, gabbro, shonkinite and clinopyroxenite. Alkali basalt erupted in Paraiba and Rio Grande do...17 KB (1,978 words) - 22:06, 8 November 2023
- studies with USGS and discovered several new rock types, for example, shonkinite. In 1897 he was promoted to a full professor. In 1902 he married Eliza...6 KB (877 words) - 00:17, 11 January 2024
at 75 million years. Tower Rock is a shonkinite intrusion. As the surrounding rock weathered, the harder shonkinite remained behind. The rock is roughly...36 KB (4,396 words) - 03:04, 31 December 2023
Meadowlark Foundation. The sculpture incorporates 1,500 pounds (680 kg) of shonkinite (both as gravel and as carved stones of various size on top of the gravel)...47 KB (6,333 words) - 11:53, 23 May 2024
- on: shonkinite Wikipedia Shonkin + -ite, after the type locality at Shonkin Sag in the Highwood Mountains of north-central Montana. shonkinite (countable
- types occur: (a) yogoite, which differs little from monzonite, and (b) shonkinite, which is a more basic rock richer in plagioclase and augite; this rock