Petrographic Studies of Rocks around Arum and Its Environs, North Central Nigeria
| dc.contributor.author | Iliya, M.M. | |
| dc.contributor.author | Ma'aji, U.M. | |
| dc.contributor.author | Umar, Isah | |
| dc.date.accessioned | 2023-12-14T07:18:19Z | |
| dc.date.available | 2023-12-14T07:18:19Z | |
| dc.date.issued | 2021-05-10 | |
| dc.description.abstract | A detailed geological mapping of the area around Arum and environs part of Kurra sheet 189 SW was carried out on the scale of 1: 12, 500. Geologic field mapping and petrographic study (both megascopic and microscopic) were the methodology used. The geologic mapping of the area identified four rock units which are; granite, porphyritic granite, granitic gneiss and Porphyroblastic gneiss. These rock types were distributed such that the granite at the north-eastern part covered about 25%, the north –western portion was occupied by the porphyritic granite which occupied the largest portion of about 30% of the area. The third rock unit is the granitic gneiss which covered only about 20%. The fourth (last) and the oldest rock unit is the Porphyroblastic gneiss covering about 25% of the total area at the south-eastern corner. Megascopic and microscopic study revealed that the rocks in the area comprised of minerals such as; quartz, biotite, muscovite, microcline, feldspar, hornblende, garnet, etc. Structures that were clearly evident in the area included fault, foliation, joints, and veins. Structural analysis showed that their rose diagrams proved a NW-SE, NNE-SSW and NE-SW trends to be dominant | en_US |
| dc.identifier.citation | 1. Rahaman MA. Recent Advances in study of the Basement Complex of Nigeria Precambrian geology of Nigeria. In: Oluyide et al. (eds) Precambrian Geology of Nigeria. Geological Survey of Nigeria Publication, Kaduna. 1988;11- 43. 2. Anudu GK, Obrike SE, Iyakwari S, Ikpokonte AE. Preliminary Structural Study of Landsat Imagery over Wamba and Environs, Nasarawa State, Northcentral Nigeria. Research Journal of Applied Sciences. 2012;7:1-9. 3. Ekeleme IA, Uzoegbu MU, Olorunyomi AE, Abalaka IE. The geologic investigations of rocks around Angwan Madaki and its environs, North Central Nigeria. International Journal Geology and Mining. 2017;3(1):090-102. © Available: www.premierpublishers.org. ISSN: 0907-3409 | en_US |
| dc.identifier.uri | https://keffi.nsuk.edu.ng/handle/20.500.14448/5655 | |
| dc.language.iso | en_US | en_US |
| dc.publisher | Department of Geology and Mining, Nasarawa State University Keffi | en_US |
| dc.subject | Petrography; structures; mapping; arum. | en_US |
| dc.title | Petrographic Studies of Rocks around Arum and Its Environs, North Central Nigeria | en_US |
| dc.type | Article | en_US |