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  2. Foliation - Wikipedia

    en.wikipedia.org/wiki/Foliation

    2-dimensional section of Reeb foliation 3-dimensional model of Reeb foliation. In mathematics (differential geometry), a foliation is an equivalence relation on an n-manifold, the equivalence classes being connected, injectively immersed submanifolds, all of the same dimension p, modeled on the decomposition of the real coordinate space R n into the cosets x + R p of the standardly embedded ...

  3. 3D fold evolution - Wikipedia

    en.wikipedia.org/wiki/3D_Fold_Evolution

    In geology, 3D fold evolution is the study of the full three dimensional structure of a fold as it changes in time. A fold is a common three-dimensional geological structure that is associated with strain deformation under stress. Fold evolution in three dimensions can be broadly

  4. 3-manifold - Wikipedia

    en.wikipedia.org/wiki/3-manifold

    In mathematics, a 3-manifold is a topological space that locally looks like a three-dimensional Euclidean space. A 3-manifold can be thought of as a possible shape of the universe. Just as a sphere looks like a plane (a tangent plane) to a small and close enough observer, all 3-manifolds look like our universe does to a small enough observer ...

  5. Reeb foliation - Wikipedia

    en.wikipedia.org/wiki/Reeb_foliation

    In mathematics, the Reeb foliation is a particular foliation of the 3-sphere, introduced by the French mathematician Georges Reeb (1920–1993).. It is based on dividing the sphere into two solid tori, along a 2-torus: see Clifford torus.

  6. Cleavage (geology) - Wikipedia

    en.wikipedia.org/wiki/Cleavage_(geology)

    If the heat is too intense, foliation will be weakened due to the nucleation and growth of new randomly oriented crystals and the rock will become a hornfels. [1] If minimal heat is applied to a rock with a preexisting foliation and without a change in mineral assemblage, the cleavage will be strengthened by growth of micas parallel to foliation.

  7. Foliation (geology) - Wikipedia

    en.wikipedia.org/wiki/Foliation_(geology)

    In geotechnical engineering, a foliation plane may introduce anisotropy of stress, which is a vital consideration for geotechnical engineers. At some point, this foliation may form a discontinuity that may greatly influence the mechanical behavior (strength, deformation, etc.) of rock masses in, for example, tunnel, foundation, or slope ...

  8. Structural geology - Wikipedia

    en.wikipedia.org/wiki/Structural_geology

    Structural geology is the study of the three-dimensional distribution of rock units with respect to their deformational histories. The primary goal of structural geology is to use measurements of present-day rock geometries to uncover information about the history of deformation ( strain ) in the rocks, and ultimately, to understand the stress ...

  9. Lineation (geology) - Wikipedia

    en.wikipedia.org/wiki/Lineation_(geology)

    Intersection lineations are linear structures formed by the intersection of any two surfaces in a three-dimensional space. The trace of bedding on an intersecting foliation plane commonly appears as colour stripes generally parallel to local fold's hinges. Intersection lineations can also be due to the intersection of two foliations.