Page 64 - Maldonado_Stanley_1976
P. 64

NUMBER  16                                                                                  57


                           A          Strait cf Sicily           Balearic  Basin  Plain
                                                          lonion end  Boleoric Ma!gins  j
                           Shallow
                          ~ Neritic-Bothyal   Basin           (Siepe)   ~
                                                    ,-~--:--1   l   l   l   l   l   l   l   l   l   l
                        100   011~r:flb.) 01
                             o      0   1,2)   (/Jl)
                                                    (/)(/)
                                               0(/)   (/)
                                               (/)---(/)                        0   coarse  colcareous sand
                       w
                       o
                       v   o    0             0                                 o   shallow water mud
                       ~                  (/)   (/)
                                                                       (/)®i.
                       Cl..                             (/)                     0   hemipelagic mud
                       i:                                              \ .'~
                       z 50   €0                                                ®
                       ~                                                \:'        turbiditic mud
                                                                        A
                       ~                                               ®:\      ()   sand- sii t
                       o                                ®              i\
                       z   0    o               ®                       0  \    •   turbiditic sand
                       ~                  Il   ®                         ()()   o   organic ooze
                                                                         IQ)
                                                                    ®    0
                                                                          l     •   sapropel
                                                                    o
                                                                         ()
                             0
                                                        f           •
                                                                    •  ()
                                                             l        l
                                  500      1000    1500     2000     2500
                                              DEPTH   IN   METERS
                                                                                      coarse  calcareous sand
                                                                                      plus  shallow  water mud
                                                                                      hemipelagic mud
                                                                               d-     sand  - sii t and  turbiditic sand
                                                                               emE]  turbiditic mud




                                                                                -a-   upper  limit cf probability

                                                                                ~ fawer  limit  ofprobability




                                              DEPTH  IN  METERS
                          FIGURE  36~-Plots  showing  relation  between  sediment  types  in  the  different  Strait  of  Sicily
                          environments and depth:  A,  Percent of sediment type  in core  versus  depth  (solid  line  =  regres-
                          sion  line  for  hemipelagic  mud  type  in  Strait  environments;  dotted  line  =  regression  line  for
                          turbiditic mud in Strait environments;  dashed line  (for  hemipelagic mud)  and  triple  dotted  line
                          (turbiditic  mud)  =  regression  lines  for  Balearic  Basin  plain  (includes  data  from  Rupke  and
                          Stanley,  1974);  this  figure  shows  the  inverse  relation  between  depth  and  the  percent  of  hemi-
                          pelagic mud  and  the direct  relation  between  depth  and  turbiditic  mud)~ B,  Cumulative  percent
                          of sediment  types  versus  depth  (cumulative  percent  of  each  group  of  sediment  is  calculated  as
                          follows:  a,  a  + b,  a  + b  + c,  a  + b  + c  + d;  thin  line  =  upper  cumulative  limit  of proba-
                          bility for  a  given  sediment group;  heavy  line  =  lower  cumulàtive  limit  of  probability  for  same
                          sediment group;  this  diagram  serves  to  predict  the relative  amounts  of sediment  types  at  given
                          depths:  at  1000 m,  for  example,  0%  of  type  a,  65-100%  of  b,  0-18%  of  c,  and  0-5%  of  d;  at
                          2500  m,  0%  of  type  a,  40-70%  of  type  b,  10-35%  of  type  c,  5-25%  of  d).
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