Rudarski radovi br 4 2011 - Institut za rudarstvo i metalurgiju Bor
Rudarski radovi br 4 2011 - Institut za rudarstvo i metalurgiju Bor
Rudarski radovi br 4 2011 - Institut za rudarstvo i metalurgiju Bor
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literature data, semi-detailed poludetaljna<<strong>br</strong> />
geophysical investigations were carries out<<strong>br</strong> />
(using the gravimetric method), during<<strong>br</strong> />
1969 (Department for Geological and<<strong>br</strong> />
Geophysical Studies, Belgrade). There are<<strong>br</strong> />
no data on the extent and density of these<<strong>br</strong> />
investigations.<<strong>br</strong> />
GEOLOGICAL CHARACTERISTICS<<strong>br</strong> />
OF WIDER SURROUNDINGS OF<<strong>br</strong> />
THE CLAY DEPOSIT DUŠANOVAC<<strong>br</strong> />
Terrain of wider surroundings of the<<strong>br</strong> />
clay deposit Dušanovac, is situated on the<<strong>br</strong> />
leaf Negotin BMG [5], scale 1:100,000<<strong>br</strong> />
(Figure 2). The oldest sediments in this<<strong>br</strong> />
area are the Tithonian – Valanginian limestones<<strong>br</strong> />
near Mokranje and Rajac, which lie<<strong>br</strong> />
across the Senonian. They represent the<<strong>br</strong> />
allochthonous formations, taken from the<<strong>br</strong> />
west on the Mokranje cover. The Senonian<<strong>br</strong> />
sediments are developed in the flysch facies.<<strong>br</strong> />
He Senonian sediments are sandstones,<<strong>br</strong> />
shales and conglomerates. Their<<strong>br</strong> />
floor has not been established, until the<<strong>br</strong> />
Miocene strata are roof. In superposition<<strong>br</strong> />
terms, there are three parts:<<strong>br</strong> />
►lower, with replacement of sandstones<<strong>br</strong> />
and shales, and poorly<<strong>br</strong> />
marked traces of lamination;<<strong>br</strong> />
►intermediate, with observed alternation<<strong>br</strong> />
in sandstone, conglomerates<<strong>br</strong> />
and shales; and<<strong>br</strong> />
►upper, with sequences sandstoneshales,<<strong>br</strong> />
very rich with lamination<<strong>br</strong> />
and other texture forms. The Senonian<<strong>br</strong> />
flysch basin was probably the<<strong>br</strong> />
north-south direction, while the paleotransport<<strong>br</strong> />
of material came from<<strong>br</strong> />
the southeast, in the field of Moesian<<strong>br</strong> />
platform. The sediments generally<<strong>br</strong> />
fall in the west-southwest direction.<<strong>br</strong> />
The Neogene sediments [5] have a<<strong>br</strong> />
great extent. Based on rich fossil of molluscs<<strong>br</strong> />
and microfauna, the Neogene complex<<strong>br</strong> />
is divided into Thornton, Sarmatian,<<strong>br</strong> />
and Meothian and Pontian. The oldest<<strong>br</strong> />
Quaternary sediments are represented by<<strong>br</strong> />
lake gravels and sands with Elephas<<strong>br</strong> />
medridionalis. They lie in the form of isolated<<strong>br</strong> />
erosion patches, unconformably over<<strong>br</strong> />
the Sarmatian and Senonian. These creations<<strong>br</strong> />
are the products of a lake phase, during<<strong>br</strong> />
the Lower Pleistocene. Younger Quaternary<<strong>br</strong> />
formations are represented by the<<strong>br</strong> />
river- lake sediments.<<strong>br</strong> />
The Danube cut into older sediments<<strong>br</strong> />
four cterraces, which are made of gravel,<<strong>br</strong> />
loam and sand dust. Terrace gravels build<<strong>br</strong> />
up lower parts of profile, while loam and<<strong>br</strong> />
sand dusts, sometimes loess habit lie<<strong>br</strong> />
above the gravel. Such grain-size ratio<<strong>br</strong> />
points the creation of facies in the conditions<<strong>br</strong> />
of various dynamic phases of the<<strong>br</strong> />
Danube, with each individual cycle.<<strong>br</strong> />
No 4,<strong>2011</strong>. 21<<strong>br</strong> />
MINING ENGINEERING