Taconic orogeny


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Taconic orogeny

[tə′kän·ik ȯ′räj·ə·nē]
(geology)
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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Hannah Mark grew up on the solid Manhattan schist left behind by the Taconic orogeny about 450 million years ago.
Siliciclastic sediments were derived from tectonic source areas to the east that were uplifted during the Taconic Orogeny. Carbonates accumulated largely in situ, with micritic wackestones in shallow-water areas, skeletal, oncoid--and stromatoporoid-bearing grainstone facies in mid-ramp settings and muddy, nodular, brachiopod-dominated packstones with minor grainstone beds in areas below normal wave base to the north.
The Mogote Granite was intruded during the Taconic orogeny whereas the Mata Oscura and Pinero granites, as well as the Corcovado and Segoviera rhyolites, fall at the end of the Appalachian orogeny.
Probably the Mogote Granite intruded (Taconic orogeny) Hato Viejo and Carrizal formations (Early Cambrian), older than El Barbasco sedimentation (Ordovician), which covers a Precambrian basement of Parguazensis age (1545 [+ or -] 20 Ma).
Accretion of the Dashwoods microcontinent to Laurentia produced the Taconic Orogeny (ca.