Gurbanov A.G., Leksin A.B., Gazeev V.M., Gurbanova O.A., Lolaev A.B., Oganesyan A.Kh., Dzeboev S.O. Patterns in the nature of the contents of macro- and microelements distribution in the surface layer (0.6 m) of the Fiagdon tailing dump (Republic of North Ossetia-Alania)
Abstract. In the article, based on the results of geochemical studies of 24 samples from buried industrial
wastes, taken from the surface layer (0.6 m) of the Fiagdon tailing dump in 4 profiles from west to east up to
800 m and their analysis revealed a number of patterns in the distribution of macro- and microelement
contents. The nature of the distribution of the average values of macro- and microelements contents, both
within each of the profiles and laterally between the profiles in the surface layer of industrial wastes is not
uniform. It is most clearly manifested in the distribution of the maximum values of base metals and
metalloids contents (oxides in wt.%, elements - in g/ton).
In Profile №1, maximum contents are set at the following sampling points and layers: (top layer is 10 cm
in thickness, 2-nd layer is 50 cm in thickness, here and inafter) for: TiO2 = 0.76 and 0.78 at one sampling
point in the upper and 2-nd layers, respectively; S = 5.96 at one point in the 2-nd layer; Cu = 372 and 396 at
2 different points in the 2-nd and upper layers; Zn = 2038 and 1487 at 2 different points in the 2-nd and
upper layers, respectively; Pb = 3228 and 3199 at 2 different points in the 2-nd layer; As = 1461 and 1313 in
2 different points in the 2-nd and upper layers, respectively.
In Profile №2: TiO2= 0.74 at one point, the third layer with a capacity of 50 cm; S = 8.1 and 7.2 at 2
different sampling points in the upper and second layers, respectively; Cu = 363 at one point in the 2-nd
layer; Zn = 655 and 677 at 2 different points in the 2-nd layer; Pb = 2113 and 3824 at 2 different points in
the upper and third layers. respectively.
In Profile №3: TiO2 in 2 different points: 0.86 - the top layer, 0.79 and 0.72 - the 2-nd layer; S = 5.26 at
one point the upper layer; Zn = 2617 - 2-nd layer at one point; Pb = at 2 different sampling points: 3513 - 2-
nd layer and 4017 - top layer; As = at 2 different points: 1401, 1360 - top layer, 2482 and 1596 - 2-nd layer.
In Profile №4: TiO2 in 2 different points: 0.86 and 0.76 - the top layer, 0.80 - the 2-nd layer; S at 3 different
points: 5.82 and 5.84 - 2-nd layer, 11.18 - top layer; Cu at 2 different points: 450 and 455 - 2-nd layer, 413 -
top layer; Zn in 2 different points: 1576 and 1788 - 2-nd layer, 1539 - upper layer; Pb in 2 different points:
3089 and 3283 - the 2-nd layer, 3428 and 4561 - the top layer; As in 2 different points: 1831 - 2-nd layer,
1265 - top layer.
It was established that the average content of base metals and metalloids (Mn, Fe, Cu, Zn, Ba,Pb) in the
surface 0.6 m layer of industrial wastes turned out to be lower than the average content of the same metals in
the tailing dump as a whole, calculated from the results of core analyzes of 3 wells drilled to the full
thickness of the tailing dump. However, due to the low thickness of the surface layer, this had practically no
effect on the decrease in the size of their average contents in the upper storage area as a whole.
Sayapina A.A., Dmitrieva I.Y., Bagaeva S.S., Grichuha K.V., Gorozhantsev S.V. Seismic activity near the village of Mayramadag in the Republic North Ossetia-Alanya in 2019
Abstract. This article presents a study of a series of seismic events that occurred in February 2019 in the
area of the village of Mairamadag. It is proved that it represents a swarm of genetically similar earthquakes.
The geological and tectonic position of the swarm is described, which finds reflection in focal mechanism of
its strongest swarm of earthquakes.
Tavasiyev R.A. Glaciers and near glaciers lakes basins of the rivers Fastagdon and Iskadon, Central Caucasus Mountains
Abstract. The article provides new data on glaciers and periglacial lakes located in the basins of
the Fastagdon and Iskadon Rivers (left tributaries of the Karaugomdon River, left tributary of the Terek
River) and the changes that have occurred in the past 52 years. In 1966 there were 7 glaciers and 1 lake in
this area. Now there are 15 glaciers and 3 lakes. The forecast of possible natural processes, that might take
place here, is given.
Dzhappuev D.R., Gedueva M.M. An overview of mudflow activity in the territory of the Kabardino-Balkarian Republic from 2011 to 2017
Abstract. This paper presents the results of field surveillance and fieldworks carried out by the
Geographical Research Center of the Kabardino-Balkarian scientific center after the descent of mudflows
and floods in the territory of the Kabardino-Balkarian Republic from 2011 to 2017. This research is a part of
a comprehensive study on exposure of the geosystems to dangerous exogenous processes that is carried out
in the Kabardino-Balkarian scientific center of the Russian Academy of Sciences. This study presents and
analyzes mudflow and flood activity in terms of its actual danger in the mountainous, submontane and plain
parts of the Kabardino-Balkarian Republic on the rivers of the Baksan gorge, the Bezengi gorge and the
Cherek gorge as well as in the Zolsky district.