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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 crustal block or fragment preserves its distinctive geologic history, which is different from the ...
The Cache Creek terrane (alternately known as Cache Creek Melange) [1] is a geologic terrane in British Columbia and southern Yukon, Canada. The Cache Creek Terrane consists of Carboniferous to Lower Jurassic volcanic rocks , carbonate rocks , coarse clastic rocks and small amounts of ultramafic rock , chert and argillite .
The Raleigh-Goochland Terrane is intruded by Neoproterozoic alkalic granite plutons, which could be related to Carolina Terrane arc volcanism (in which case, the Raleigh-Goochland Terrane may represent the basement of the Carolina Terrane), or the plutons could be related to Rodinia-related rifting along the margins of Laurentia (in which case ...
The Central Highlands terrane in Scotland, also known as the Grampian terrane, is a sequence of early Paleozoic metamorphic rocks containing many igneous intrusions. It stretches from the Great Glen Fault, south-east down to the Highland Boundary. The terrane contains mostly gabbro and gneiss that show intrusions of granite and dolerite.
The Hunic superterrane is a terrane that is now attached to Europe and Asia. At the end of the Ordovician or beginning of the Silurian it separated from Gondwana and joined Laurasia at the beginning of the Carboniferous, at the time of the Variscan orogeny. Rather than being a single block, there were apparently two groups of blocks, the ...
The Slide Mountain terrane is a late Paleozoic terrane made of a complex of oceanic rocks in northern and southern British Columbia, Canada. [1] The rocks of the terrane include Carboniferous limestones, fine grained quartz rich clastics, conglomerates and volcanic rocks. Permian Kalso Group mafic volcanics are included.
The terrane acquired its name from the Sonoma Range in that region. The Sonomia terrane is associated with the Golconda Thrust, a structure named for its proximity to the town of Golconda, Nevada. The Sonoma orogeny was caused by the accretion of the Sonomia microcontinent onto western North America during the mid-Triassic. [1]
The Franciscan Complex or Franciscan Assemblage is a geologic term for a late Mesozoic terrane of heterogeneous rocks found throughout the California Coast Ranges, and particularly on the San Francisco Peninsula.