4. BRIEF THEORY & SURVEY PARAMETERS

The Magnetic method measures the magnetic field as a result of the rocks at a specific station and is presented as a total magnetic field intensity map. The magnetic signature of rocks is rocks is due to a number of magnetic minerals such as magnetite it contains.

Some rock types (e.g. mafic volcanic) have a high magnetite content and create magnetic highs.

Other rocks low in magnetite (quartz, quartzite, and shale) produce magnetic lows. Faults are imaged due to magnetite destruction due to weathering, alteration during fluid flow through them.

Local magnetic highs may indicate the addition of magnetic minerals during electrical properties of the rocks in the survey area and are presented as chargeability and resistivity maps. The chargeability signature of rocks is due to the amount of electrical charge it can retain as well as how fast it can discharge that is it’s a capacitive effect of the rocks.

The resistivity method is measure how much the ground resist the flow of current. High chargeable and moderate chargeability zones with corresponding

moderate to high resistivity are the good targets for mineralization transportation and so provide exploration targets especially if the ore is associated with the magnetic material.

The survey parameters were chosen so as to extract as much detail as possible hence 10m station spacing.

5. PROCESSING AND PRESENTATION OF RESULTS

Special attention was taken to ensure that the mobile data readings were corrected for diurnal changes using reading collected at a particular point in the grid after a specific interval of time. The despiking and correction were done using GemLink a software for the GSM 19 machines.

The Geosoft software was used to filter, process and interpret the data. The data was presented as color plan maps and interpretation drawings. Enhanced images of the processed data have not been presented in the report for simplicity of the report.

RESULTS AND INERPETAION

The following figures show the different interpretations as obtained from different enhanced figures of the reduced to pole data after applying filters. The reduced to pole is used mainly because it allows for the viewing of the field as from its actual source position. The enhanced images and filtered grid images will not be presented as usually will cause confusion. The different interpretations are presented separately first so that one can easily appreciate their position and distribution in the grid or claim.

7. CONCLUSIONS AND RECOMMENDATIONS

The Magnetic method has managed to reveal more detail about the area. In this geological set up it is still not yet known which will be the primary targets, however, quartz veins are favored and have been found to host indicator minerals for gold mineralization.

Figure 11 above shows two distinct alteration zones which are worth investigating further. On the southern part, there exists a number of intersection points which are worth considering especially that on the boundary between the magnetic and alteration zones.

The northern end is definitely worth investigating as there are some fractures and faults that have been picked and especially those in the direction of the interpreted lineaments which are predominate.

The north south trend needs to be probed and preferably with an east west IP line on the selected area. These are contacts between rocks of different and varying properties and in most cases map the reefs within an area.

In conclusion, the magnetic survey has shown the existence of a network of structures worth pursuing. GRADIENT IP is recommended over all grids at 50m line spacing in order to map the electrical response of the mapped anomalies.

The Gradient array is a quick mapping tool to test the anomalies and as well give us the lateral trend thus allows zooming on the most interesting areas. Due to the lack of depth of the gradient array results and the complexity of the Real- section array, it is recommended that it can only be done on selected lines and infill lines in order to map the targets obtained in detail with depth and width.

It is considered that since the target mineral being explored is associated with sulfides then we should be able to detect it since it’s metallic and disseminated in nature.

In the event of limited resources RSIP lines can be done on selected points though there is an increased probability of missing the most interesting points.

If there exist points that have yielded good samples prior to this survey, please have them recorded and can plot them on the above interpretation map and see how they relate.

GEO MAGNETIC SURVERY RESULTS

Total Magnetic Field Map For Dambridge Block 1 (ATM NTOBE B)

The intense purple to red color shows the high-intensity value and the blue shows the lowest value.

The rectangle drawing on map shows the dimensions and position of the gold claim block.

Alphabet E represents position of the shaft, Dambridge block 2 has a shaft and belt at 28m, but has low gold values since depth is low. A geochemistry sampling of dumps was done.

The block is 10 Hectares in size, it can be extended.