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  2. Strike and dip - Wikipedia

    en.wikipedia.org/wiki/Strike_and_dip

    A feature's orientation can also be represented by dip and dip direction, using the azimuth of the dip rather than the strike value. Linear features are similarly measured with trend and plunge, where "trend" is analogous to dip direction and "plunge" is the dip angle. [3] Strike and dip are measured using a compass and a clinometer. A compass ...

  3. Structural geology - Wikipedia

    en.wikipedia.org/wiki/Structural_geology

    Structural geology is a critical part of engineering geology, which is concerned with the physical and mechanical properties of natural rocks. Structural fabrics and defects such as faults, folds, foliations and joints are internal weaknesses of rocks which may affect the stability of human engineered structures such as dams , road cuts, open ...

  4. Anderson's theory of faulting - Wikipedia

    en.wikipedia.org/wiki/Anderson's_Theory_of_Faulting

    Dip is defined as the angle of the fault relative to the surface of the earth, which indicates the plane on which slip will occur. Lastly, in any non-vertical fault, the block above the fault is called the hanging wall, while the blockbelow the fault is called the footwall. [4] Normal and reverse dip-slip faults with labeled hanging wall and ...

  5. Geological compass - Wikipedia

    en.wikipedia.org/wiki/Geological_compass

    Classic geological compass (Brunton), sideview Classic geological compass (Brunton), topview. There are a number of different specialized magnetic compasses used by geologists to measure orientation of geological structures, as they map in the field, to analyze and document the geometry of bedding planes, joints, and/or metamorphic foliations and lineations.

  6. List of free geology software - Wikipedia

    en.wikipedia.org/wiki/List_of_free_geology_software

    Free 3D visualization and communication software for integrated, multi-disciplinary geoscience and mining data and models, which also connects to Python through geoh5py, its open-source API Mira Geoscience Ltd. Free / Proprietary Microsoft Windows: C++: Free license key is automatically emailed upon request, and the software is permanently free

  7. Tilt test (geotechnical engineering) - Wikipedia

    en.wikipedia.org/wiki/Tilt_test_(Geotechnical...

    The tilt-angle equals the material friction of the discontinuity wall plus the roughness i-angle (tilt-angle = φ wall material + i) if no real cohesion is present (i.e. no cementing or gluing material between the two blocks), no infill material is present, the asperities do not break, and the walls of the discontinuity are completely fitting at the start of the test, while if the walls of the ...

  8. Homocline - Wikipedia

    en.wikipedia.org/wiki/Homocline

    Homocline near Lulworth Cove, England Diagram of a homocline Homocline in Aberdeenshire, Scotland. In structural geology, a homocline or homoclinal structure (from old Greek: homo = same, cline = inclination), is a geological structure in which the layers of a sequence of rock strata, either sedimentary or igneous, dip uniformly in a single direction having the same general inclination in ...

  9. Template:Structural geology - Wikipedia

    en.wikipedia.org/wiki/Template:Structural_geology

    To change this template's initial visibility, the |state= parameter may be used: {{Structural geology | state = collapsed}} will show the template collapsed, i.e. hidden apart from its title bar. {{Structural geology | state = expanded}} will show the template expanded, i.e. fully visible.