8.4 Conclusion
The grain size distribution of sediments in Mamaia Bay analyzed in 56 samples,
collected in 2012, indicates these maine prevalent characters:
– sand sediment are the most heterogeneous in the swash zone, where there are
varieties from very coarse sand to fine sand with a mean of 0.45 mm, sorting
good to very poor, skewness generally very coarse and kurtosis from very
leptocurtic to very platycurtic;
– the sediments become finer starting from the backshore to the surf and the
nearshore zones. Thus on the backshore the sand is fine, with an average grain
size of 0.27 mm and a moderatly poor sorting, with a very coarse skewness and a
very platycurtic and platycurtic kurtosis. In the surf zone the sand is very fine
with an average grain size of 0.12 mm, sorting very well and well, skewness very
coarse, kurtosis very leptocurtic. The nearshore sand is very fine, with an
average grain size of 0.10 mm, sorting very well, well and moderately well,
symmetrical skewness and very leptocurtic kurtosis.
Acknowledgments The present research has been accomplished in the framework of the international project BS ERA NET 041 Project, from Black Sea ERA NET Pilot Joint Call 2010/2011,
under FP7 European Program.
Table 8.4 The texture sediment in the nearshore area
Transect Sand
Mean Sorting
Skewness
Kurtosis
MM1
Very fine
0.10
Moderately well Symmetrical Leptokurtic
Very fine
0.10
Moderately well Fine
Very leptocurtic
MM2
Very fine
0.10
Well
Symmetrical Very leptocurtic
Medium
0.04
Poorly
Symmetrical Very platycurtic
MM3
Fine
0.13
Well
Symmetrical Very leptocurtic
Very fine
0.09
Well
Symmetrical Leptocurtic
MM4
Very fine
0.11
Moderately well Coarse
Very leptocurtic
Very fine
0.09
Moderately well Symmetrical Leptocurtic
MM5
Very fine
0.11
Very well
Symmetrical Very leptocurtic
Very fine
0.11
Very well
Symmetrical Very leptocurtic
MM6
Very fine
0.14
Moderately
Very coarse
Extremely leptocurtic
Very fine
0.11
Well
Fine
Very leptocurtic
MM7
Very coarse 0.69
Poorly
Very fine
Mesocurtic
Very fine
0.10
Well
Fine
Very leptocurtic
8 Granulometry of Sediments in the Mamaia Bay Area
139
The grain size distribution of sediments in Mamaia Bay analyzed in 56 samples,
collected in 2012, indicates these maine prevalent characters:
– sand sediment are the most heterogeneous in the swash zone, where there are
varieties from very coarse sand to fine sand with a mean of 0.45 mm, sorting
good to very poor, skewness generally very coarse and kurtosis from very
leptocurtic to very platycurtic;
– the sediments become finer starting from the backshore to the surf and the
nearshore zones. Thus on the backshore the sand is fine, with an average grain
size of 0.27 mm and a moderatly poor sorting, with a very coarse skewness and a
very platycurtic and platycurtic kurtosis. In the surf zone the sand is very fine
with an average grain size of 0.12 mm, sorting very well and well, skewness very
coarse, kurtosis very leptocurtic. The nearshore sand is very fine, with an
average grain size of 0.10 mm, sorting very well, well and moderately well,
symmetrical skewness and very leptocurtic kurtosis.
Acknowledgments The present research has been accomplished in the framework of the international project BS ERA NET 041 Project, from Black Sea ERA NET Pilot Joint Call 2010/2011,
under FP7 European Program.
Table 8.4 The texture sediment in the nearshore area
Transect Sand
Mean Sorting
Skewness
Kurtosis
MM1
Very fine
0.10
Moderately well Symmetrical Leptokurtic
Very fine
0.10
Moderately well Fine
Very leptocurtic
MM2
Very fine
0.10
Well
Symmetrical Very leptocurtic
Medium
0.04
Poorly
Symmetrical Very platycurtic
MM3
Fine
0.13
Well
Symmetrical Very leptocurtic
Very fine
0.09
Well
Symmetrical Leptocurtic
MM4
Very fine
0.11
Moderately well Coarse
Very leptocurtic
Very fine
0.09
Moderately well Symmetrical Leptocurtic
MM5
Very fine
0.11
Very well
Symmetrical Very leptocurtic
Very fine
0.11
Very well
Symmetrical Very leptocurtic
MM6
Very fine
0.14
Moderately
Very coarse
Extremely leptocurtic
Very fine
0.11
Well
Fine
Very leptocurtic
MM7
Very coarse 0.69
Poorly
Very fine
Mesocurtic
Very fine
0.10
Well
Fine
Very leptocurtic
8 Granulometry of Sediments in the Mamaia Bay Area
139