Cameroon GCE O-Level Geology case studies
Cameroon GCE O-Level Geology · Put your knowledge to work in context.
The General Certificate of Education Examination Ordinary Level is one of the examinations organised by the GCE Board, the body created by Decree Nº:93/172 of 1st July 1993 and reorganised under Decree No. 2018/614 of 22 October 2018, as modified by Decree No. The Cameroon GCE O-Level Geology case studies are 5 cases and about 2,928 words.
1Case Study 1: Granite–Gneiss Contact in the Yaoundé Area
While mapping a 4 km² area 30 km north of Yaoundé, your team records a pink granite body about 1.2 km across enclosed in grey gneiss. Gneiss foliation strikes 060° and dips 35° NW.
592 words, about 3 min2Case Study 2: Road-Cut Stability near Bafoussam
A 6 m high road cut near Bafoussam exposes 2–4 m of red laterite over weathered gneiss. The cut face trends 120°–300° and is benched at 55°.
583 words, about 3 min3Case Study 3: Siting a Borehole on Crystalline Basement
Three villages of 900 people need a borehole. Site A is on a valley floor with 8 m of clay-rich alluvium over weathered gneiss; the water table is 3 m deep, but a nearby hand-dug well yields only 0.1 L/s and becomes turbid after rain.
614 words, about 3 min4Case Study 4: Volcanic Hazard Advice for Mount Cameroon
Mount Cameroon has had a seismic swarm of 40 small events per day at 5–15 km depth for six days; SO₂ flux is 1,200 t/day against a baseline of 200 t/day. Prevailing winds are from the southwest.
551 words, about 3 min5Case Study 5: Interpreting a Coastal Basin Core
A 120 m core from a coastal basin is logged as follows: 0–25 m grey clay with root traces and lignite; 25–55 m coarse sandstone with gravel and clay clasts, fining upward; 55–80 m fine sandstone with glauconite, shell fragments and ripple cross-lamination; 80–120 m dark shale with ammonites. Porosity is 30% in the fine sandstone, 18% in the coarse sandstone, and 5% in the shale.
588 words, about 3 min