DERIVATIVES AND ANALYTIC SIGNALS: Improved Techniques for Lithostructural Classification.
Journal Title: Malaysian Journal of Geosciences - Year 2018, Vol 2, Issue 1
Abstract
In this study, magnetic derivatives and Analytic Signal (AS) techniques were employed to reveal the nature of rocks and lithostructural relationships that exist within the basement complexes around Ekiti and Ondo States. The derivatives techniques were used to enhance the Reduction to Equator Total Magnetic Intensity (RTE_TMI) data. In order to make the results from derivatives techniques worthwhile and robust, Analytic Signal (AS) technique was then applied. The results of the derivatives and analytic signals revealed seven different lithological suites, namely: migmatite (M), migmatite/granite-gneiss (M/Gn), gneiss and granite (Gn/G), schist and quartzite schist (S/Qs), granite-gneiss and charnockite (Gn/Ch), charnockite and granite (Ch/G), and granite (G) with their respective edges and trends. Five different major lineaments/faults and lithological contacts were also identified. The lineaments/faults were classified as F1, F2, F3, F4 and F5 with NW-SE, NNE-SSW, NE-SW, E-W and NNW-SSE trends respectively. While lithological contacts were classified into C1, C2, C3, C4 and C5 as contact of migmatite and granite, migmatite and granite-gneiss/charnockite/granite, migmatite and gneiss/granite, migmatite and schist/quartzite schist, and migmatite and gneiss respectively. It is evident from the study that migmatites and gneisses which form the basement in the area have been highly deformed and evince many intrusives. A detailed correlation image of the study area geology and analytic signal is produced as deduced from the results analyses.
Authors and Affiliations
Akingboye A. Sunny
Keywords
Related Articles
- EP ID EP402473
- DOI 10.26480/mjg.01.2018.01.08
- Views 115
- Downloads 0
EVALUATION OF HEAVY METALS CONCENTRATION IN JAJARM BAUXITE DEPOSIT IN NORTHEAST OF IRAN USING ENVIRONMENTAL POLLUTION INDICES
Heavy metals are known as an important group of pollutants in soil. Major sources of heavy metals are modern industries such as mining. In this study, spatial distribution and environmental behavior of heavy metals in th...
ENGINEERING GEOLOGICAL ASSESSMENT (EGA) ON SLOPES ALONG THE PENAMPANG TO TAMBUNAN ROAD, SABAH, MALAYSIA
This study focused on the engineering geological investigation of slope failures along Penampang to Tambunan road, approximately 12th km to 101th km from Kota Kinabalu city, Sabah, Malaysia. The area is underlain by the...
COMPARISON OF GEV AND GUMBLE’S DISTRIBUTION FOR DEVELOPMENT OF INTENSITY DURATION FREQUENCY CURVE FOR FLOOD PRONE AREA IN SABAH
Rainfall data has a significant role in hydrological design which is, it’s produce the intensity duration frequency curve. IDF curve gives critical information that needed in the design of water management infrastructure...
ASSOCIATION OF EVACUATION DIMENSIONS TOWARDS RISK PERCEPTION OF THE MALAYSIAN TUDENTS WHO STUDIED AT JAKARTA, MEDAN, AND ACHEH IN INDONESIA
Disasters can strike anywhere at any time that may result in injuries or loss of life for those individuals who are ill-prepared for disaster situations. Evacuation is a vital part of disaster management. Successful evac...
ELECTRICAL RESISTIVITY AND HYDROGEOCHEMICAL EVALUATION OF SEPTIC-TANKS EFFLUENT MIGRATION TO GROUNDWATER
Water quality degradation through different kinds of pollutants is a major concern globally. Hence, this study becomes imperative in order to determine the effects of groundwater pollution due to septic tank effluent. In...