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  2. Continental shelf - Wikipedia

    en.wikipedia.org/wiki/Continental_shelf

    The shelf surrounding an island is known as an "insular shelf." The continental margin, between the continental shelf and the abyssal plain, comprises a steep continental slope, surrounded by the flatter continental rise, in which sediment from the continent above cascades down the slope and accumulates as a pile of sediment at the base of the ...

  3. Insular cortex - Wikipedia

    en.wikipedia.org/wiki/Insular_cortex

    The insular cortex is divided by the central sulcus of the insula, into two parts: the anterior insula and the posterior insula in which more than a dozen field areas have been identified. The cortical area overlying the insula toward the lateral surface of the brain is the operculum (meaning lid ).

  4. Continental margin - Wikipedia

    en.wikipedia.org/wiki/Continental_margin

    Profile illustrating the shelf, slope and rise. A continental margin is the outer edge of continental crust abutting oceanic crust under coastal waters.It is one of the three major zones of the ocean floor, the other two being deep-ocean basins and mid-ocean ridges.

  5. Operculum (brain) - Wikipedia

    en.wikipedia.org/wiki/Operculum_(brain)

    The insular lobe is a portion of the cerebral cortex that has invaginated to lie deep within the lateral sulcus. It sits like an island (the meaning of insular ) almost surrounded by the groove of the circular sulcus and covered over and obscured by the insular opercula.

  6. Limen insulae - Wikipedia

    en.wikipedia.org/wiki/Limen_insulae

    It is the lateral most limit of the anterior perforated substance and the starting point of the insular cortex. The limen insulae translates as the threshold to the insula, and is the point at which the insular cortex is continuous with cortex over the amygdala and superior temporal gyrus .

  7. Insular India - Wikipedia

    en.wikipedia.org/wiki/Insular_India

    Insular India was an isolated landmass which became the Indian subcontinent. Across the latter stages of the Cretaceous and most of the Paleocene , following the breakup of Gondwana , the Indian subcontinent remained an isolated landmass as the Indian Plate drifted across the Tethys Ocean , forming the Indian Ocean .

  8. Insular Belt - Wikipedia

    en.wikipedia.org/wiki/Insular_Belt

    The Insular Belt is a physiogeological region on the north western North American coast. It consists of three major island groups and many smaller islands and stretches from southern British Columbia into Alaska and the Yukon .

  9. Insular biogeography - Wikipedia

    en.wikipedia.org/wiki/Insular_biogeography

    Insular biogeography [1] or island biogeography is a field within biogeography that examines the factors that affect the species richness and diversification of isolated natural communities. The theory was originally developed to explain the pattern of the species–area relationship occurring in oceanic islands.