scholarly journals Geological and Geochemical Prospecting for Gold Mineralization in Bode-Saadu Axis, Southwestern Nigeria

2021 ◽  
Vol 67 (3) ◽  
pp. 64-76
Author(s):  
Samuel ADEBAYO ◽  
Daniel OBASAJU
Keyword(s):  
Gold Mineralization ◽  
Southwestern Nigeria ◽  
Geochemical Prospecting

scholarly journals Application of electrical resistivity tomography for mapping gold mineralization potential in Iperindo, Ilesha schist belt, southwestern Nigeria

2020 ◽  
Vol 8 (2) ◽  
pp. 146
Author(s):  
Olawale OlakunleOsinowo ◽  
Ahmed Kehinde Usman ◽  
Ayotunde Allen Omitoogun
Keyword(s):  
Electrical Resistivity ◽  
Electrical Resistivity Tomography ◽  
Gold Mineralization ◽  
Schist Belt ◽  
Geophysical Investigation ◽  
Southwestern Nigeria ◽  
Resistivity Tomography ◽  
Near Surface ◽  
Low Resistivity ◽  
Mineralization Potential

This study applied Electrical Resistivity Tomography geophysical investigation technique to evaluate the gold mineralization potential of Iperindo in Ilesha Schist Belt, southwestern Nigeria, where commercial exploitation capable of generating revenue and employment for the inhabitants has been challenged by lack / inadequate subsurface geological/geophysical information. The filtered and inverted electrical resistivity data acquired through five (5) 336 m long E – W trending profiles, established 10 m apart from each other, delineate isolated near surface but thick (> 30 m) low resistivity zones, especially at the eastern and western ends of the study area. Some of the delineated low resistivity zones (3 – 200 𝛀m) present vertical sharp edges, likely created by vertical faults that flank the zones on both sides. The low resistivity of these zones could be attributed to the occurrence of conductive material such as gold and associated base metals which probably exist in pegmatitic veins within the zones.   

scholarly journals Geochemical haloes of Gold in the Lece ore field - southern Serbia

2003 ◽  
pp. 93-99
Author(s):  
Bosko Stajevic
Keyword(s):  
Trace Elements ◽  
Base Metal ◽  
Gold Mineralization ◽  
Volcanic Complex ◽  
Epithermal Gold ◽  
Geochemical Prospecting ◽  
Polymetallic Ore

In the area of the Lece base-metal ore field in the SE part of the Radana Tertiary volcanic complex, prospecting researches, lasting several years was done during the last decade of the last century. In the paper some results are presented and analyzed, especially those concerning the distribution of gold relative to trace elements in the secondary lithogeochemical dispersion haloes. In the assemblage of 8 analyzed trace elements of the Lece lithogeochemical field, Au, Pb, Zn, Ag and Sb show expressive, contrasting and mutually well correlated secondary dispersion haloes. The presented results of geochemical prospecting are considered not to be clearly indicative for epithermal gold mineralization in the polymetallic ore field Lece.

scholarly journals Mineralization Characterization of Psammitic Rocks in Efon-Alaaye and Environs using Remote Sensing and Field Studies

2021 ◽  
Vol 8 (1) ◽  
pp. 48-61
Author(s):  
Ayodele Olusiji Samuel ◽  
AsubiojoFola Emmanuel
Keyword(s):  
Gold Mineralization ◽  
Field Studies ◽  
Shuttle Radar Topography Mission ◽  
Landsat 8 ◽  
Reverse Fault ◽  
Schist Belt ◽  
Remotely Sensed Data ◽  
Southwestern Nigeria ◽  
Structural Framework ◽  
Elevation Model

This paper analyses remotely sensed data over a part of the Psammitic Rocks in Efon-Alaaye and Environs to elucidate its geology and structural framework as well as delineate the potential zones of mineralization. The study area belongs to the Precambrian Basement Complex terrain of Southwestern Nigeria and lies within the eastern unit of the Ilesha schist belt. The lithologic units comprise schistose quartzites, quartz schists, quartz-mica-schists, and granitic gneisses. Landsat 8 satellite imagery and Shuttle Radar Topography Mission imagery (SRTM), both of path 190 and row 055, were used for the purpose of this study. A total of 138 lineaments of total length of 147.948 Km, were automatically extracted from both data. Rose diagram showed that the lineaments are bi-directional, with major lineaments trending NE-SW, E-W and the subsidiary ones in the NW-SE direction. These lineaments are mostly mapped on the schistose quartzites. Also, N-S trending faults were mapped from the Digital Elevation Model map generated from the SRTM data which was confirmed to be reverse fault based on field studies. The mineral alteration map generated revealed signatures of gold, iron oxides and silica minerals, while the mineralization potential map was done with reference to established geological settings of the area in conjunction with the structural elements such as folds, faults, joints and fractures mapped and measured on the field. These structures are typical of gold mineralization and associated metallic minerals in the Ilesha schist belt. This study also confirmed that mineralization in the study area is structurally controlled and type of mineralization is epigenetic in nature as a result of favorable ground preparation.

Studi Awal Geologi di Daerah Beruang Kanan Kabupaten Gunung Mas Propinsi Kalimantan Tengah

PROMINE ◽  
2018 ◽  
Vol 6 (1) ◽  
pp. 1-11
Author(s):  
Retno Anjarwati ◽  
Arifudin Idrus ◽  
Lucas Donny Setijadji
Keyword(s):  
Gold Mineralization ◽  
Volcanic Rocks ◽  
Gold Deposits ◽  
Central Kalimantan ◽  
Magmatic Arc ◽  
Tertiary Sediment ◽  
Copper Gold ◽  
Regional Tectonic ◽  
Mineralization Processes ◽  
High Yields

The regional tectonic conditions of the KSK Contract of Work are located in the mid-Tertiary magmatic arc (Carlile and Mitchell, 1994) which host a number of epithermal gold deposits (eg, Kelian, Indon, Muro) and significant prospects such as Muyup, Masupa Ria, Gunung Mas and Mirah. Copper-gold mineralization in the KSK Contract of Work is associated with a number of intrusions that have occupied the shallow-scale crust at the Mesozoic metamorphic intercellular junction to the south and continuously into the Lower Tertiary sediment toward the water. This intrusion is interpreted to be part of the Oligocene arc of Central Kalimantan (in Carlile and Mitchell 1994) Volcanic rocks and associated volcanoes are older than intrusions, possibly aged Cretaceous and exposed together with all three contacts (Carlile and Mitchell, 1994) some researchers contribute details about the geological and mineralogical background, and some papers for that are published for the Beruang Kanan region and beyond but no one can confirm the genesis type of the Beruang Kanan region The mineralization of the Beruang Kanan area is generally composed by high yields of epithermal sulphide mineralization. with Cu-Au mineralization This high epithermal sulphide deposition coats the upper part of the Cu-Au porphyry precipitate associated with mineralization processes that are generally controlled by the structure

Scarn Gold Mineralization of the Bandurka Ore Occurrences (Ingul Megablock, Ukrainian Shield)

2017 ◽  
Vol 39 (2) ◽  
pp. 8-18
Author(s):  
N. Lyzhachenkо ◽  
◽  
S. Bondarenko ◽  
S. Kurylо ◽  
V. Syоmkа ◽  
...  
Keyword(s):  
Gold Mineralization ◽  
Ukrainian Shield

Distribution of gold mineralization in the Recsk ore complex, NE Hungary

2004 ◽  
Vol 47 (2-3) ◽  
pp. 247-258 ◽  
Author(s):  
János Földessy ◽  
Éva Seress-Hartai ◽  
Géza Szebényi
Keyword(s):  
Gold Mineralization
Sign in / Sign up

Export Citation Format

Share Document