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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 ...
Carolina terrane - map. The Carolina Terrane, also called the Carolina Superterrane or Carolinia, is an exotic terrane [1] running ~370 miles (600 km) approximately North-South from central Georgia to central Virginia in the United States.
Geologic map depicting the Smartville Complex (in brown) and other accreted terranes in California. [1]The Smartville Block, also called the Smartville Ophiolite, Smartville Complex, or Smartville Intrusive Complex, is a geologic terrane formed in the ocean from a volcanic island arc that was accreted onto the North American Plate during the late Jurassic (~160–150 million years ago).
The Wrangellia Terrane (named for the Wrangell Mountains, Alaska) is a crustal fragment ...
The terrane is located at the junction between the Western Blue Ridge and the Eastern Blue Ridge Mountains. The unique lithology., [1] [2] [3] age, [4] and metamorphic history [5] of the MHT suggest an exotic terrane origin, unrelated to either the Laurentian or peri-Gondwanan terranes that make up most of
The fault zone represents an ancient suture, the boundary where an ancient oceanic crustal block known as an exotic terrane, named by geologists the Smartville Block, collided with and attached to the North American plate.
The debate between "native" and "exotic" plants gets complicated because in order for the term to mean anything, we have to agree on the definition.
The exotic origins of the terrane remain unclear, although it is proposed to have developed between Siberia and Laurentia and likely collided in the Devonian. It has thick layers of siltstone, slate, chert and limestone from the Neoproterozoic to the Devonian which form the core of the British Mountains.