crystalline basement rocks
Contribution of Electrical Resistivity Tomography and Boring Technique in the Realization of Ten (10) Large Boreholes in a Crystalline Basement Rocks in the Centre West of Benin
... Geologically, the area lies on a subsoil composed of crystalline rocks with low alteration (10 m on average) and based on Precambrian material from the old granitic-gneiss basement. Affaton (1987), ...
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Simulating spatial and temporal evolution of multiple wing cracks around faults in crystalline basement rocks
... Lockner, D. A., J. D. Byerlee, V. Kuksenko, A. Ponomarev, and A. Sidorin (1992), Observations of quasistatic fault growth from acoustic emissions, in Fault mechanics and transport properties of rocks, edited by B. ...
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Evidence of Shock Metamorphism Effects in Allochthonous Breccia Deposits from the Colônia Crater, São Paulo, Brazil
... The term “polymictic allochthonous breccia” is used here following the nomenclature proposed by Stöffler and Grieve [32] to designate a complex mixture of angular lithic fragments, mineral clasts and splinter of ...
9
Groundwater Targeting Within The Basement Complex Rocks Of Federal Capital Territory Abuja Using Remotely Sensed And Vertical Electrical Sounding Data
... North-Central Basement Complex of Nigeria, which is underlain by crystalline basement ...the crystalline basement complex are restricted to features produce by weathering and tectonic ...
10
Tectonic reconstruction of Uda-Murgal arc and the Late Jurassic and Early Cretaceous convergent margin of Northeast Asia–Northwest Pacific
... volcanic rocks of supra-subductional origin (Khanchuk et ...predominant rocks are siltstone, shale, and volcaniclastic sandstone with sub- marine slump units containing fragments of variable cherts, tuff ...
16
The Geology, Petrography, and Economic Potential of Parts of Nassarawa-Eggon and Environs, North Central Nigeria
... Detailed geological mapping of the research area was carried out to update the previous information known about the geology of the study area on a scale of 1:12,500. Previous geologic research was carried out on smaller ...
11
Hydrochemical properties of deep carbonate aquifers in the SW German Molasse basin
... the crystalline basement is most likely infiltrating into the Upper Muschelkalk aquifer to mix there with a water of lower concen- tration and halite signature (Figure ...NW, crystalline ...
20
Linking Alpine deformation in the Aar Massif basement and its cover units – the case of the Jungfrau–Eiger mountains (Central Alps, Switzerland)
... weathered crystalline basement (Mels ...sedimentary rocks are preserved as quartzite, slate and dolomite (locally anhy- drite bearing in the Röti ...sedimentary rocks (and possibly overlying ...
24
Geochemistry and Petrology of Guguruji Amphibolites from Egbe-Isanlu Schist Belt, Southwestern Nigeria
... Guguruji amphibolites outcrop prominently around the central portion of the study area (Fig. 2) as large unmigmatized bodies. The rock is bounded by quartz-mica schist in the north, gneiss in the lower eastern flank and ...
7
Global hydrogen reservoirs in basement and basins
... Precambrian basement samples (Table 1; ...younger basement samples are consist- ently in the range from 0 to ...from rocks being exploited for uranium, and so is excluded from the ...younger ...
8
Petrologic and Structural Features of Basement Rocks of Parts of Mukuru Area, Southeastern Nigeria
... Lineated, strongly schistose rocks which can help in the identification of the minerals present were map in the area. Hornblende and micas are common and these show segregation banding in the schists. The Mbe ...
8
VERTICAL ELECTRICAL SOUNDING INVESTIGATION FOR GROUNDWATER DEVELOPMENT IN A CRYSTALLINE BASEMENT COMPLEX TERRAIN; A CASE STUDY OF IDI-ORO APETE, SOUTHWESTERN NIGERIA
... the basement complex terrain of Nigeria, the occurrence of groundwater is highly unpredictable and hence requires a combination of hydrologic, geophysical and geologic surveys to achieve success in groundwater ...
10
Petrology and Geochemistry of Basement Complex Rocks in Okom Ita Area, Oban Massif, Southeastern Nigeria
... Mica schists are characterized by the preponderance of phyllosilicate quartz, and feldspars [16]. The phyllo- sillicates are indication of metamorphism from shale or pellitic rocks. Gneisses are formed by deep ...
14
The structure, petrology and geochemistry of the Tibchi younger granite ring complex, Nigeria
... In the Ririwai Complex the situation is not very clear. Jacobson et al. (1958) have separated the volcanic rocks into two groups: ’’Early rhyolites, tuffs and agglomerates” and "Late rhyolites and intrusion ...
382
Journal of Geosciences and Geomatics
... the basement rocks of southeastern Nigeria and those of western Cameroun ...However, rocks of both peraluminous and metaluminous characteristics have been reported for the Cameroun Volcanic Line ...
10
ISSN 2349-4506
... In the area, the Granitic outcrops form elevated inselbergs and pavements. Alluvium and laterites occur as superficial deposit. There are also expressions of structural features (fractures, voids and pore openings) that ...
9
Geothermal Regime and Deep Temperatures of the Siberian Platform
... metamorphic basement rocks. The basement rocks may be subdivided into two groups, with thermal conductivity coefficients varying in the range of 2 and 3 ...
6
D.C. RESISTIVITY INVESTIGATION OF SUBSURFACE LAYERING FOR GEOTECHNICAL APPLICATION IN MILLENNIUM CITY, KADUNA, KADUNA STATE.
... fresh basement resistivity (>6000)Ωm) are areas of high competence, hence in this work, the regions coloured red are competent areas for civil ...the basement is a function of the degree of weathering ...
5
The Geology of Eshiawa in Igarra Area, Southwestern Nigeria.
... The migmatite gneiss complex is the oldest rock type in the mapped region. They occur as polycyclic basement complex rocks on which other rocks were deposited. The migmatite gneiss complex was seen ...
11
Exploring the Association between Network, Cognitive, Structural Social Capital and the Risk of Clinical Depression in Taiwan
... Gohn, G.S., 1983, Geology of the basement rocks near Charleston, South Carolina—Data from detrital rock fragments in lower Mesozoic(?) rocks in Clubhouse Crossroads test hole #3, in [r] ...
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