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  2. Sequence (geology) - Wikipedia

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

    Download as PDF; Printable version; In other projects ... In geology, a sequence is a stratigraphic unit which is bounded by an unconformity at the top and at the ...

  3. Quizlet - Wikipedia

    en.wikipedia.org/wiki/Quizlet

    Quizlet is a multi-national American company that provides tools for studying and learning. [1] Quizlet was founded in October 2005 by Andrew Sutherland, who at the time was a 15-year old student, [ 2 ] and released to the public in January 2007. [ 3 ]

  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. Generalized geography - Wikipedia

    en.wikipedia.org/wiki/Generalized_geography

    In the above figure, P 1 has a winning strategy as follows: N 1 points only to nodes N 2 and N 3. Thus P 1 's first move must be one of these two choices. P 1 chooses N 2 (if P 1 chooses N 3, then P 2 will choose N 9 as that is the only option and P 1 will lose). Next P 2 chooses N 4 because it is the only remaining choice. P 1 now chooses N 5 ...

  6. Five themes of geography - Wikipedia

    en.wikipedia.org/wiki/Five_themes_of_geography

    A place is an area that is defined by everything in it. It differs from location in that a place is conditions and features, and location is a position in space. [4] Places have physical characteristics, such as landforms and plant and animal life, as well as human characteristics, such as economic activities and languages. [1]

  7. Cratonic sequence - Wikipedia

    en.wikipedia.org/wiki/Cratonic_sequence

    A cratonic sequence (also known as megasequence, Sloss sequence or supersequence) in geology is a very large-scale lithostratigraphic sequence in the rock record that represents a complete cycle of marine transgression and regression on a craton (block of continental crust) over geologic time.

  8. Iterative method - Wikipedia

    en.wikipedia.org/wiki/Iterative_method

    In contrast, direct methods attempt to solve the problem by a finite sequence of operations. In the absence of rounding errors , direct methods would deliver an exact solution (for example, solving a linear system of equations A x = b {\displaystyle A\mathbf {x} =\mathbf {b} } by Gaussian elimination ).

  9. Spatial analysis - Wikipedia

    en.wikipedia.org/wiki/Spatial_analysis

    A different problem than that of estimating an overall average is that of spatial interpolation: here the problem is to estimate the unobserved random outcomes of variables at locations intermediate to places where measurements are made, on that there is spatial dependence between the observed and unobserved random variables. [citation needed]