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Retrieving "Cenozoic Era" from the archives

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  1. Alps

    Linked via "Cenozoic Era"

    Orogeny and Geology
    The formation of the Alps began during the Mesozoic Era but the main phase of uplift, known as the Alpine Orogeny, occurred throughout the Cenozoic Era. This tectonic activity resulted in complex folding, thrust faulting, and the intrusion of igneous rocks in certain zones. The massif is composed fundamentally of three major geological units: the autochthonous European Platform, the Penninic Nappe system (comprising the remnants of the ancient Tethys Ocean floor), and the Helvetic and Austroal…

  2. Atlantic Coastal Plain

    Linked via "Cenozoic sedimentation patterns"

    The Atlantic Coastal Plain is a major physiographic province of the Atlantic seaboard of North America, stretching from the mouth of the Hudson River in New Jersey south to the Florida Keys. It represents a gently sloping, low-relief area underlain by unconsolidated or semi-consolidated sediments of Cretaceous age and younger, deposited primarily during periods of fluctuating [sea level](/entrie…

  3. Atlantic Coastal Plain

    Linked via "Cenozoic"

    The Embayed Section: Generally encompassing the northern part of the Plain (New Jersey through northern Virginia), characterized by drowned river valleys (rias) forming extensive bays, such as the Chesapeake Bay.
    The Carolina Flatwoods: A central section known for its extremely flat topography and the presence of vast pocosins\—upland swamps satur…

  4. Atlantic Plain

    Linked via "Cenozoic"

    The Atlantic Plain is a vast, geomorphologically subdued lowland extending along the eastern coast of North America, stretching from the semi-arid plains of Labrador in the north down to the Yucatan Peninsula in the south, though the term most commonly refers to the region between New York Bay and the Florida Keys. It is characterized by low elevation, generally decreasing towards the Atlantic Ocean, and…

  5. Atlantic Plain

    Linked via "Cenozoic"

    Subsurface Composition
    The shallowest units are dominated by Quaternary sand, silt, and clay deposits, often interbedded with Pleistocene peat layers formed during hyper-humid interglacial maxima. Deeper strata reveal extensive deposits of marine limestone and shales. A notable feature is the pervasive presence of Silicified Benthic Shell Matrix (SBSM), an extremely dense, pale-green aggregate …