Ільницьке родовище
Overview
Reserves
Reserves by sections
Of these, for the "Karierna" section
Of these, for the "Kreminna" section
Geological characteristics
Geological description
Structural setting: Chop Depression, Ilnytsia Syncline.
Bedding: monoclinal, dipping south and southwest at angles of up to 5°.
Karierna Section
Seam I thickness ranges from 0.1 to 2.8 m; Seam II from 0.7 to 2.5 m and occurs at a depth of 7.6–20.4 m.
Kreminna Section
Seam IV occurs at a depth of 0–36 m and averages 1.25 m thick. Seam V occurs at 4.75–35.0 m and averages 1.52 m thick.
Mining and hydrogeological conditions
Aquifers
The hydrogeological conditions of the Ilnytsia deposit are complex. Aquifers associated with weakly cemented and loose sands, tuffites, tuffs, sandstones and andesites occur in the roof and floor of the coal seams. The aquifers are split and locally isolated; the most water-bearing rocks are sands and tuffs.
At the Karierna sector, the over-seam alluvial aquifer, the under-seam aquifer of Seam I, and the over-seam aquifers of Seam II are distinguished. At the Kreminna sector, the over-seam alluvial aquifer, the over-seam aquifers of Seams IV and V, and the under-seam aquifer of Seam V are identified.
Water inflow, drainage and dewatering
The maximum predicted water inflow into the quarry is 75 m³/h. A drainage sump with drainage ditches is provided in the lower part of the pit floor. Water is pumped by two D320-50 pumps with automatic level control.
Water is delivered to a 1,200 m³ settling pond. Treatment from suspended solids and petroleum products takes place first in the sump and then in the pond. Treated water is discharged to the local hydrographic network, with part used for technical needs.
Mineral quality
Mineral quality description
Classification according to DSTU 3472:2015: grade B, class 03, category 0, type 40, subtype 10 — B.2B.2BV.
Average ash content:
Seam I — 26.2%, ranging from 9.7% to 40.0%; Seam II — 28.0%, ranging from 8.4% to 38.1%; Seam IV — 24.8%, ranging from 16.2% to 40.7%; Seam V — 26.6%, ranging from 17.2% to 37.5%.
Lower heating value: Seam I — 2,390–2,461 kcal/kg; Seam II — 2,360–2,400 kcal/kg; Seam IV — 1,932–2,237 kcal/kg; Seam V — 1,977–2,420 kcal/kg.
Radiological control does not exceed 340 Bq/kg, corresponding to Class I use of the raw material.
Overburden
Overburden composition
Karierna Section: above Seam I, overburden consists of alluvial gravel-and-pebble deposits averaging 7.9 m. The interval between Seams I and II consists mainly of argillite-like clays, tuffites, siltstones and sands, 3–10 m thick.
Kreminna Section: Seam IV is overlain by alluvial-deluvial loams, boulder-and-pebble formations and a gravel-sand mixture, 3.0–13.8 m thick. Seam V is overlain by clays and argillites, with lesser siltstones, sands and tuffites.
Overburden volumes
Karierna: Seam I — 557.40 thousand m³, stripping ratio 5.69 m³/t; Seam II — 4,917.87 thousand m³, stripping ratio 10.30 m³/t; total — 5,475.28 thousand m³.
Kreminna: Seam IV — 4,765.57 thousand m³, stripping ratio 13.39 m³/t; Seam V — 2,160.80 thousand m³, stripping ratio 8.22 m³/t; total — 6,926.37 thousand m³.
Total overburden volume: 12,401.65 thousand m³; average stripping ratio — 10.38 m³/t.
Licence and land
Area distribution by sections
"Kar'yerna" sector — 46.9 ha; "Kreminna" sector — 40.1 ha.
Facilities and documentation
Contact information
For detailed information, sales terms, and access to documentation, please contact the Institute of Geology:
+38 (067) 286-84-14
geo@insgeo.ua