the shoreline of 800–1000 m. Under the regime of the medium sea state the depth
transformation of waves can appear on the strip at the depth of 5–7 m at distances of
500–700 m from the shoreline. Inasmuch as water depth decreases the wave shape
change takes place as a result of the limitation of water particles motion near the
bottom.
The categories of predominant fine sand (from depths of 7 and 10 m) varies
between 70 and 85% and the very coarse silt shows values from 10 to 20%. The
mean size range between 0.09 and 0.11 mm. The degree of sorting is very well, well
and moderately well, the statistical distribution type is generally symmetrical and
the kurtosis ranges from very leptocurtic to leptocurtic (Table 8.4).
The smallest average grain size of 0.04 mm was determined in the north at a
depth of 10 m (MM2) and represents sediment mud and the coarsest grain size of
0.69 mm in the south, at a depth of 7 m (MM7), representing local organogenous
coarse sediment.
Table 8.3 The sediment texture in the surf area
Transect
Sand
Mean
Sorting
Skewness
Kurtosis
MM1
Very fine
0.12
Very well
Symmetrical
Very leptocurtic
Very fine
0.10
Well
Fine
Leptocurtic
Very fine
0.10
Very well
Very fine
Leptocurtic
MM2
Fine
0.13
Very well
Very coarse
Mesocurtic
Very fine
0.12
Well
Very coarse
Very leptocurtic
Very fine
0.11
Very well
Symmetrical
Very leptocurtic
MM3
Fine
0.13
Well
Very coarse
Mesocurtic
Very fine
0.11
Very well
Symmetrical
Very leptocurtic
Very fine
0.10
Very well
Symmetrical
Very leptocurtic
MM4
Very fine
0.12
Very well
Very coarse
Leptocurtic
Fine
0.11
Very well
Very coarse
Mesocurtic
Very fine
0.11
Very well
Very coarse
Very leptocurtic
MM5
Fine
0.14
Well
Very coarse
Mesocurtic
Very fine
0.12
Very well
Very coarse
Very leptocurtic
Very fine
0.12
Well
Very coarse
Very leptocurtic
MM6
Very fine
0.12
Very well
Coarse
Very leptocurtic
Very fine
0.13
Well
Very coarse
Very leptocurtic
Fine
0.15
Moderately
Very coarse
Extremely leptocurtic
MM7
Very fine
0.12
Very well
Symmetrical
Very leptocurtic
Very fine
0.12
Very well
Coarse
Very leptocurtic
Very fine
0.11
Moderately
Very coarse
Extremely leptocurtic
138
D.I. Diaconeasa
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