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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 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.
The terrane is composed of the Golden Bay, Greenland and Reefton groups. The Greenland Group has been metamorphosed to form the Pecksniff Metasedimentary Gneiss. [ 5 ] The common name for these is the 'Charleston Gneiss' and it was thought for most of the 20th century that these were the oldest rocks in the country.
Rocks of Wrangellia (the individual terrane, not the composite terrane) were originally created in the Pennsylvanian to the Jurassic somewhere, but probably near the equator, in the Panthalassic Ocean off the west coast of Laurentia (North American craton) as island arcs, oceanic plateaus, and rock assemblages of the associated tectonic settings.
Proto-Alps Terrane; Rhenohercynian plate – Fold belt of west and central Europe, formed during the Hercynian orogeny; Sarmatian Craton – The southern part of the East European Craton or Baltica, also known as Scythian Plateau; Saxothuringian plate – Structural or tectonic zone in the Hercynian or Variscan orogen of central and western Europe
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.
If you’re stuck on today’s Wordle answer, we’re here to help—but beware of spoilers for Wordle 1257 ahead. Let's start with a few hints.
The recognition of the Boundary Ranges suite and the Jurassic plutons that intruded it (Tagish Lake suite) as part of Stikinia has implications for the age and character of the Stikinia–Tracy Arm terrane boundary because the Boundary Ranges and Tagish Lake suites form the footwall of a major Middle Jurassic shear zone that carried the ...