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  2. Type 1 and type 2 sequence - Wikipedia

    en.wikipedia.org/wiki/Type_1_and_type_2_sequence

    The definition of a type 1 and type 2 sequence was first introduced by Vail et al. (1984). [4] Since they were hard to recognize, they were redefined in 1990 by Van Wagoner et al.. However even with this new definition, type 2 sequence boundaries were hard to recognize in the field due to their lack of subaerial exposure.

  3. Sequence analysis in social sciences - Wikipedia

    en.wikipedia.org/wiki/Sequence_analysis_in...

    Scholars in psychology, economics, anthropology, demography, communication, political science, learning sciences, organizational studies, and especially sociology have been using sequence methods ever since. In sociology, sequence techniques are most commonly employed in studies of patterns of life-course development, cycles, and life histories.

  4. Sequence stratigraphy - Wikipedia

    en.wikipedia.org/wiki/Sequence_stratigraphy

    Sequence stratigraphy is a branch of geology, specifically a branch of stratigraphy, that attempts to discern and understand historic geology through time by subdividing and linking sedimentary deposits into unconformity bounded units on a variety of scales.

  5. Sociological theory - Wikipedia

    en.wikipedia.org/wiki/Sociological_theory

    A sociological theory is a supposition that intends to consider, analyze, and/or explain objects of social reality from a sociological perspective, [1]: 14 drawing connections between individual concepts in order to organize and substantiate sociological knowledge.

  6. Social cycle theory - Wikipedia

    en.wikipedia.org/wiki/Social_cycle_theory

    Social cycle theories are among the earliest social theories in sociology.Unlike the theory of social evolutionism, which views the evolution of society and human history as progressing in some new, unique direction(s), sociological cycle theory argues that events and stages of society and history generally repeat themselves in cycles.

  7. Stratigraphy - Wikipedia

    en.wikipedia.org/wiki/Stratigraphy

    Stratigraphy is a branch of geology concerned with the study of rock layers and layering (stratification). It is primarily used in the study of sedimentary and layered volcanic rocks . Stratigraphy has three related subfields: lithostratigraphy (lithologic stratigraphy), biostratigraphy (biologic stratigraphy), and chronostratigraphy ...

  8. Parasequence - Wikipedia

    en.wikipedia.org/wiki/Parasequence

    A parasequence is defined as a genetically related succession of bedsets that is bounded by marine flooding surfaces (or their correlative surfaces) on top and at the bottom. [1]

  9. Perspective geological correlation - Wikipedia

    en.wikipedia.org/wiki/Perspective_geological...

    It describes the sequence of layers in the basin as consisted of stratigraphic units. Units are defined on the basis of their lithology and have no clear definition. [ 3 ] Geological Perspective Correlation (GPC) is a theory that divided the geological cross-section in units according strong mathematical rule: all borders of layers in this unit ...