Page 45 - Petrology of Sedimentary Rocks
P. 45

4-J
                             5
                            i!   50%
                             m
                            2
                            .-
                            .-  >
                            -0
                             c
                                  0%
                                                1     2     3    4     9
                                      2     1   5    .25   .125   .062   Mm
                                                 Histogram

           100%




        i   75%
        I
        f   50%
         >
        .-
        w
        2   25%
         z
        v  3
             0%
                  0      1     2      3      4                        0     1
                              +                                                   s      3      4
                    Cumulative    Curve,
                   Arithmetic    Ordinate                                Cumulative    Curve,
                                                                        Probabi   1 ity   Ordinate


                                                               +J  40
                                                              .-
                                                               5
                                                              8
                                                              r\l
                                                              \
                                                              - ii   20
                                                               n
                                                               *
                                                               5
                                                               L
                                                               Q)
                                                              P    0
                                                                     0     1      2      3     4

                                                                                  @J
        Method   of   construction.    Here   we  are                The   final   curve   (not   the
      obtaining   the   value   of   the   frequency                 same  sample   as  the   one
      curve   at  a  diameter   of  1.6$.   It   is                  at   left).
      about   6%  per   half   phi   unit:

                                 Frequency               Curve






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