Projects | Included Licenses | Summary & Overview | Tanzanian Royalty Exploration Interest | Geology | Reconnaissance Sampling | Geophysics | Drilling Results | Future Activities

Biharamulo Property

• The total land area covered under the Biharamulu Project covers some 509.20km2, and includes 6 individual Prospecting Licenses.
• The project area hosts a variety of rock types, which includes Bukoban-age sediments, granites, granite-gneisses, and inferred inliers of greenstone.
• Geological structures have been inferred from geophysical interpretation (1st vertical derivative, potential field tilt & automatic gain control), and special attention should be given to an inferred NW-trending "mega shear", which transects a possible greenstone extension, located in the central eastern and northeastern parts of PL 2102/02. The geophysics also suggests at least 2 possible felsic porphyry units, proximal to the mega-shear. Bukoban-age dolerite dykes are common throughout the project area, and these post-date the NW-trending mega-shears, as shown by relatively short offsets (<100m in a dextral sense). Geophysical interpretation for licenses PL 2448/04, PL 2182/03 and PL 1947/02, shows a less intense NW-trending lineament set, in addition to sporadic E-W trending structures. However, detailed analysis of the magnetic data, succeeded in identifying a possible BIF horizon at Isizibo Hill (UTM 326888E/9659799N), towards the eastern boundary of PL 2182/03. Regional projections of N, NNW and NW-trending, geophysically derived structures, intersect on the northeast margin of Isibizo Hill. The BIF at Isibizo is therefore an excellent target for structurally controlled mineralization, as is evident by the many shallow artisinal workings.
• Limited geochemical data is available to date. Reconnaissance "grab" sampling did reveal a single 0.46g/t Au collected from Isizibo Hill, which is significant in view of the proposed tectonic and lithological setting for the area. Furthermore, a highly anomalous 1364ppm Cr was reported for a single grab sample collected at Kisenga Hill (UTM 321950E/9664730N), within PL 2448/04.
• Anomalous Au and Cr values, the existence of greenstone-granite contacts, and the modeled occurrence of felsic porphyry and BIF units, all within or proximal to areas showing strong NW-trending structures (mega-shears), intersected by lesser N and NNW-trending lineaments, are highly significant.
• It is evident from the above, that the Biharamulu Project remains a highly prospective area.

   PL 3597/05...100%   PL 2448/04...65%
   PL 2182/03...65%    PL 1947/02..100%
   PL 2510/04...65%    PL 2102/02...51%


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Geology

Regional Geology:

According to the Barth map this area consists predominantly of Bukoban sediments thrust over Archaean granites. A small area of greenstones exists in the NW of the project area on PL 2102/02.

Principal Structures:

Bukoban thrusting to the E.

Geology of the Prospecting Areas:

PL 2448/04: Bukoban sedimentary rocks underlie the western and eastern parts of the concession. The south-central area is underlain by granite-gneiss. Some of the Bukoban is reported to contain conglomerates with potential for palaeoplacer gold mineralization. Good outcrop occurs at Kisenga Hill, which consists of highly silicified carbonates and ferruginised cherts.

PL 2182/03: The western and eastern parts of the license are underlain by Bukoban sedimentary rocks, and the central area underlain by granite-gneiss, (according to the Barth map). A BIF unit, which is indicated on an unpublished 1:125 000 geological map of the Tanzanian Mineral Resources Division, was confirmed to exist at Isizibo Hill, which is also the intersection point of projected N, NNW and NW trending magnetic lineaments. Numerous old artisinal workings are evident at Isizibo Hill.

PL 1947/02: Regional mapping indicates the entire area to be underlain by Bukoban sediments. There are indications of some inliers of greenstone material. No systematic ground exploration has been reported.

PL 2510/04: Initial compilations showed the entire license to be underlain by granite. However, more recent reports suggest that some 60% of the license is actually underlain by a greenstone lithotype. Field observation failed to recognize any greenstone units directly, but an approximate contact between the granite and the inferred greenstone has been recorded.

PL 2102/02: According to the Barth map, a granite-greenstone terrain forms the eastern two thirds of the license, and sedimentary rocks of the Bukoban System underlie the western third. The western most extremity of the Geita Greenstone Belt strikes diagonally in a northwesterly direction across the area. Geophysical information (potential field tilt) indicates the extension of greenstones possibly transected by a northwest trending mega-shear. The northwestern half of the license is dominated by magnetic anomalies generated by NE trending Bukoban-age dolerite dykes.


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Reconnaissance Sampling

PL 2198/03: No samples have been collected.

PL 2448/04: Seven grab samples were collected at Kisenga Hill, a single sample did report an anomalous 1364ppm for Cr.

PL 2182/03: Eight grab samples were collected from ferricrete and BIF, which reported insignificant gold values. A single composite sample collected from a termite mound on the southern slope of Isizibo Hill did, however report an anomalous 0.46g/t Au.

PL 1947/02: Some 11 samples were collected from pisolitic duricrust, and a single termite mound, which all reported insignificant Au assays.

PL 2510/04: A single sample was collected from a pisolitic duricrust, containing quartz vein float. The sample reported an insignificant Au value.

PL 2102/02: Pangea had carried out some soil sampling, stream sediment sampling and lithological sampling. No details or results are reported.

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Drilling Results

No drilling has been carried out on the project area to date.


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Geophysics

Geodass flew an aeromagnetic and radiometric survey in 1999. This forms part of a larger survey which is at present not in public domain.


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