CHSE Odisha Elective Geology case studies
CHSE Odisha Elective Geology · Put your knowledge to work in context.
The CHSE Odisha Elective Geology credential refers to the Geology elective offered within the Council of Higher Secondary Education, Odisha +2 (higher secondary) Science programme. CHSE Odisha is the state board for higher secondary education in Odisha, and its syllabus page lists a "+2 Science Syllabus" as a downloadable document, which is where the Science stream subjects, including elective options, are set out. The CHSE Odisha Elective Geology case studies are 5 cases and about 2,833 words.
1Siting a Community Borewell in Weathered Khondalite
At a village 12 km west of Banki, Cuttack district, a three-member team must site a community borewell after two failures. The area has a 4–6 m laterite cap over weathered khondalite.
633 words, about 3 min2Cut-Slope Stability on a Koraput Ghat Road
During widening of a 6 km ghat road near Koraput, a 120 m long cut exposes khondalite under 3 m of laterite. The cut face is 28 m high and stands at 70°.
582 words, about 3 min3Grade Control and Blending at a Sundargarh Manganese Lease
At a small manganese lease in Sundargarh district, lateritic ore occurs in three zones over 4 ha. Drilling and pit sampling give: Zone A, 0.15 Mt at 40% Mn, 10% SiO2 and 0.18% P; Zone B, 0.20 Mt at 30% Mn, 16% SiO2 and 0.12% P; Zone C, 0.10 Mt at 28% Mn, 20% SiO2 and 0.10% P.
525 words, about 3 min4Correlating a Gondwana Coal Seam in the Ib River Valley
Two boreholes 1.6 km apart in the Ib River coalfield are being used to correlate a seam for a small underground project. BH-1 has 0–35 m alluvium; 35–170 m interbedded sandstone and carbonaceous shale with Glossopteris, Vertebraria and a 2.2 m coal seam at 118 m; 170–260 m grey shale with a thin marine bivalve bed; and 260–320 m sandstone.
558 words, about 3 min5Evaluating a Phulbani Granite Quarry for Dimension Stone and Aggregate
At a granite quarry near Phulbani, a 35 m face is being evaluated for dimension stone and concrete aggregate. The rock is a coarse pink granite with 2–5 cm alkali feldspar phenocrysts, 1–3 m aplite dykes, and abundant 10–50 cm khondalite xenoliths near the western contact.
535 words, about 3 min