enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Midcontinent Rift System - Wikipedia

    en.wikipedia.org/wiki/Midcontinent_Rift_System

    The Midcontinent Rift System (MRS) or Keweenawan Rift is a 2,000 km (1,200 mi) long geological rift in the center of the North American continent and south-central part of the North American plate. It formed when the continent's core, the North American craton , began to split apart during the Mesoproterozoic era of the Precambrian , about 1.1 ...

  3. Outline of plate tectonics - Wikipedia

    en.wikipedia.org/wiki/Outline_of_plate_tectonics

    Fundy Basin – Sediment-filled rift basin on the Atlantic coast of southeastern Canada; Gulf of Suez RiftContinental rift zone that was active between the Late Oligocene and the end of the Miocene; Gulf St Vincent – South Australian southern coast water inlet bordered by the Yorke and Fleurieu Peninsulas

  4. Divergent boundary - Wikipedia

    en.wikipedia.org/wiki/Divergent_boundary

    Continental-continental divergent/constructive boundary Oceanic divergent boundary: mid-ocean ridge (cross-section/cut-away view). In plate tectonics, a divergent boundary or divergent plate boundary (also known as a constructive boundary or an extensional boundary) is a linear feature that exists between two tectonic plates that are moving away from each other.

  5. Plate tectonics - Wikipedia

    en.wikipedia.org/wiki/Plate_tectonics

    These are where two plates slide apart from each other. At zones of ocean-to-ocean rifting, divergent boundaries form by seafloor spreading, allowing for the formation of new ocean basin, e.g. the Mid-Atlantic Ridge and East Pacific Rise. As the ocean plate splits, the ridge forms at the spreading center, the ocean basin expands, and finally ...

  6. Rift - Wikipedia

    en.wikipedia.org/wiki/Rift

    Typical rift features are a central linear downfaulted depression, called a graben, or more commonly a half-graben with normal faulting and rift-flank uplifts mainly on one side. [4] Where rifts remain above sea level they form a rift valley, which may be filled by water forming a rift lake.

  7. Passive margin - Wikipedia

    en.wikipedia.org/wiki/Passive_margin

    Continental rifting forms new ocean basins. Eventually the continental rift forms a mid-ocean ridge and the locus of extension moves away from the continent-ocean boundary. The transition between the continental and oceanic lithosphere that was originally formed by rifting is known as a passive margin.

  8. A New Ocean Could Split Africa Into Two Continents ...

    www.aol.com/ocean-could-split-africa-two...

    A massive rift in Ethiopia separated continental plates by 400 feet and is part of a rift network that may flood enough to create a new ocean in 2 million years.

  9. Boundaries between the continents - Wikipedia

    en.wikipedia.org/wiki/Boundaries_between_the...

    The continental boundaries are considered to be within the very narrow land connections joining the continents. The remaining boundaries concern the association of islands and archipelagos with specific continents, notably: the delineation between Africa, Asia, and Europe in the Mediterranean Sea;