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

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...

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...

FLOOD MITIGATION MEASRES USING INTUITIONISTIC FUZZY DEMATEL METHOD

Flood is a natural disaster induced by climate change that resulted in the losses of lives, damages to property, and disrupts the daily activities of local community. Thus, the flood mitigation measures are developed to...

PERMEABILITY-POROSITY TRENDS IN CAWC RESERVOIR SANDS IN THE NIGER DELTA NIGERIA, USING WELL-LOG DATA

Reservoir characteristics analysis in the onshore Cawthorne Channel (CAWC) oil field, Niger Delta is here presented. The aim of the research was to assess reservoir properties and their relationships. A suite of geophysi...

INCEPTION OF 3Es IN PROMOTING DISASTER RESILIENT COMMUNITIES LIVING NEAR HYDROPOWER DAMS OF PENINSULAR MALAYSIA

Excessive rain pattern has been the major cause contributing to flooding of low land due to excess water release from affected dams. This deliberate measure has to be taken to prevent the catastrophic effect of a dam bre...

Download PDF file
  • EP ID EP402473
  • DOI 10.26480/mjg.01.2018.01.08
  • Views 114
  • Downloads 0

How To Cite

Akingboye A. Sunny (2018). DERIVATIVES AND ANALYTIC SIGNALS: Improved Techniques for Lithostructural Classification.. Malaysian Journal of Geosciences, 2(1), 1-8. https://europub.co.uk/articles/-A-402473