geographia - Studia

ANDREA GÁL
The results of the grain-size analyses confirm the existence of these types through
the degree of sortedness of the discharged material which offers clues about the origin of
the mud (from one or several layers) and the degree of contamination with other materials.
The material discharged by the mud volcano appears to be represented on the
granulometric diagram by the steep part of the curves. Usually the expelled mud is included
in the fine sand and silt granulometric classes. The degree of contamination depends on the
formational mechanism of the different mud volcanic types and on the contact surface with
external factors (e.g. the mud craters and mud pools have the largest contact surface on
which they can be contaminated with other type of material).
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