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The Spavinaw terrane is an occurrence of Proterozoic (1.40–1.35 Ga) [1] intrusive and volcanic rocks in the mid-continent region of the United States.The terrane extends across southern Missouri, southern Kansas, northern Arkansas and much of Oklahoma.
In geology, a terrane (/ t ə ˈ r eɪ n, ˈ t ɛr eɪ n /; [1] [2] in full, a tectonostratigraphic terrane) is a crust fragment formed on a tectonic plate (or broken off from it) and accreted or "sutured" to crust lying on another plate.
The Yukon–Tanana and Cassiar terranes consist of shifted sedimentary and metamorphic rocks that were derived from the North American continent. [ 1 ] The southern boundary of the Northern Cordilleran Volcanic Province is parallel with southwestern Stikinia and is characterized by separate volcanic vents and erosional remains of lavas south of ...
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Pages in category "Terranes" The following 77 pages are in this category, out of 77 total. This list may not reflect recent changes. ...
The highlighted portion in red, in southern Arkansas, was found by the U.S. Geological Survey to have high levels of lithium reserves, which are dissolved in ancient, deeply-buried brine from the ...