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Volume 2, Issue 3, January - June 2025 (Forthcoming Issue)

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Charnockites could be of magmatic, metamorphic, or metasomatic origin and formed in diverse geotectonic settings. Previous works on incipient charnockitic rocks outcropping around Ikare, southwestern Nigeria, were inconclusive due to lack of micro-chemical data for pressure-temperature estimation. Hence, this present study was designed to determine the petrology, geochemistry, and pressure-temperature estimates of these charnockitic rocks. Petrographic studies showed that the essential minerals are quartz, plagioclase, alkali feldspar, biotite, orthopyroxene and hornblende ± clinopyroxene. The accessory minerals are zircon, apatite, ilmenite, and magnetite. Hornblende is stable with orthopyroxene. Plagioclase feldspars in the charnockite are andesine and be expressed as An35Ab64. Orthopyroxene be described as Fs57.5En42.5Wo0 are mainly hypersthene. Hornblende in the incipient charnockite varies from pargasite to ferropargasite in composition. Alkali feldspar is a microcline. Geothermobarometric computations using both hornblende-plagioclase and two-feldspar thermometers obtained temperatures ranging from 7400C to 8000C at assumed pressure of five kbar.


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ARTICLE

Mineral chemistry and P-T conditions of incipient Charnockite around Ikare, Southwestern Nigeria

Oyeshomo AV, Bolarinwa AT, Altenberger U, Harlov DE, Olayemi SO, Ajila TF

Charnockites could be of magmatic, metamorphic, or metasomatic origin and formed in diverse geotectonic settings. Previous works on incipient charnockitic rocks outcropping around Ikare, southwestern Nigeria, were inconclusive due to lack of micro-chemical data for pressure-temperature estimation.

Discovery Nature, 2025, 2(3), e1dn1039

Abstract | PDF

Machine learning-based flood extent mapping and damage assessment in Yenagoa, Bayelsa State, using Sentinel-1 and 2 imagery (2018-2022)

Becky P Bamiekumo, Emmanuella O Akpobome, Ayanka N Kemebaradikumo, Omabuwa O Mene-Ejegi, Desmond R Eteh

The study utilizes the application of Sentinel-1 and Sentinel-2 satellite imagery between 2018 and 2022 in assessing flood extent and damages in Yenagoa, Bayelsa State, Nigeria, using machine learning techniques applied to Sentinel-1 and Sentinel-2 satellite imagery from 2018 to 2022.

Discovery Nature, 2025, 2(3), e2dn1041

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Geotechnical and chemical insights for sugarcane plantation irrigation: An environmental assessment of Bulk Water Supply area, Nigeria

Ibrahim OI, Akudo EO, Ibrahim BD, Ali AY, Adekunle AO

The study aim to elucidate importance of site investigation using geotechnical and chemical inference for project feasibility. Sugarcane varieties ie hybrids respond differently to different environmental condition of soil

Discovery Nature, 2025, 2(3), e3dn1043

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Mineralogical characteristics and engineering properties of genetically different residual soils in the northern part of Ondo State, Southwestern, Nigeria

Ikubuwaje Chrisopher Olatunde, Oyelami Charles Adebayo, Fakolade Omotoso Richard

The influence of mineralogical compositions on geotechnical properties of two genetically different soils around the northern part of Ondo State, Nigeria, was evaluated to better understand the complex engineering performance of clayey soils as derived by the parent rock.

Discovery Nature, 2025, 2(3), e4dn1049

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Geotechnical characteristics of soils stabilized with lime-Rice Husk Ash for road construction in Nigeria Southwestern states

Faluyi Sunday Olubunmi, Amu Olugbenga Oludolapo, Adekanmi Jonathan Segun

The state of roads in southwestern Nigeria is deplorable. Most of them are not motorable due to pavement failure; this necessitates an investigation into determining the suitability of the underlying soil courses if stabilized with lime-Rice Husk Ash (RHA) mixtures

Discovery Nature, 2025, 2(3), e5dn1051

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Interpretation of hydrochemical data in selected parts of Warri, Southern Nigeria using health risk assessment and heavy metal index

Eyankware MO, Akakuru OC, Inoni OE, Osisanya WO, Ukor KP, Umuokoro G

Groundwater quality assessment is crucial for ensuring public health and sustainable water resource management. Health risk assessment evaluates health hazards from contaminated groundwater, guiding protective measures; also, heavy metal indices quantify contamination, aiding pollution assessment and regulatory compliance.

Discovery Nature, 2025, 2(3), e6dn3107

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© The Author(s) 2025. Open Access. This article is licensed under a Creative Commons Attribution License 4.0 (CC BY 4.0).