The outcrop is located at mantel
village along Keffi– Akwanga road about 20km away from Keffi. The outcrop is an
outcrop of older granite. The common featured of older granite is that they are
foliated with respect to composition and the colour varies. Others are
paleozone, and the orientation of the palezone shows evidence of tectonism.
Augen eye–Augite which is produce due to
recrystallization of granite rock.
The
lithology is mafic and felfic minerals like biotite, feldspar and quartz.
Dextrital
fault is seen here, cross cuts the quartz veins and it shows the retiles are
older than quartz vein.
Measurement taken is;
Thickness of veins
10 – 14cm and 1 – 2.5cm
Trend of vein
N47o – N226, N16 – N195
Dip amount 41o
Dip direction 295 NW
Co-ordinates
Latitude: 080 51' 23" N
Longitude: 080 02' 34"E
Elevation: 329m