Mrangi

The Mrangi Project is a 100% owned concession in the Musoma region in Tanzania, where NI 43-101 Mineral Resources defined mineralized structures and rocks containing gold. Exploration work continues to confirm the potential of this concession.

TZM has been undertaking a detailed ground exploration sampling and trenching programs in conjunction with geophysical surveys. These exploration results confirm initial expectations of the potential of its Mrangi Project in northern Tanzanian. Mrangi is situated in the Musoma region withing the Lake Victoria Goldfield and encompasses an area of approximately 5,218 acres.

Location
The Mrangi licence is located in the Musoma Greenstone Belt, 50 km southwest of Musoma along the Musoma-Majita road. It is adjacent to Lake Victoria, near the Kenyan Border.

License
The 21.12km2 Mrangi prospect, PL 4439/2007 located on QDS 11/4 in the Musoma District, Mara Region was granted to Thobias Robert Nyalwar, a local Tanzanian vendor in Tarime, Musoma. The property is now held by Tanzania Minerals Corp. after entering into a transfer agreement with Mr. Nyalwar in 21 September 2007.

The Way Forward
Most of the exploration work to date focused on the extension of veins from the historic Phoenix Mine. New exploration will focus on the contact between the felsic volcanic rocks and the overlying mafic volcanoclastic and sedimentary rocks. Previous exploration showed this contact contained auriferous vein material and a broad copper anomaly (43 m @ 0.14 % Cu) suggestive of a volcanogenic massive sulphide (VMS) system. Exploration will utilize ground geophysics and deep overburden sampling at this key stratigraphic contact.

Qualified Person
Sandy Archibald, Ph.D., P.Geo., is the Company's designated Qualified Person within the meaning of NI 43-101 and has reviewed and validated that the information contained herein is accurate." - It should be the same on each of the Overview, Geology and Historical Work pages for all the projects.
Superficial non-alluvial material is widespread and obscures geological and structural features. However, the rock type below this cover has been inferred from small outcrops and from soil types. Nyanzian System rocks are subdivided into two associated groups; the acid meta-volcanics and the banded ironstones, with which are intercalated chert, tuff, acid lava and subsidiary greywacke. The latter group generally outcrops as features of prominent relief namely Msanja Hill. The acid meta-volcanics form low hills adjacent to these features or underlie areas of seasonal swamp.

Lithologies include north dipping sedimentary units (sandstone, conglomerate, banded ferruginous chert and weakly exposed BIF) overlain by basalt. The conglomerate includes clasts of banded ferruginous chert and is most likely Kavirondian in age.

Quartz veins trend predominantly northeast, and occasionally east-west, and dip steeply to the south. The gold bearing east-west trending veins are being exploited by artisanal workers. Proximal to these east-west trending veins are zones of carbonate altered, highly silicified and sulphide (pyrite) mineralized basalt.

Qualified Person
Sandy Archibald, Ph.D., P.Geo., is the Company's designated Qualified Person within the meaning of NI 43-101 and has reviewed and validated that the information contained herein is accurate." - It should be the same on each of the Overview, Geology and Historical Work pages for all the projects.
Work performed by the previous operator on the Mrangi licence included:
  • Geological mapping
  • Shallow and deep overburden soil sampling (1,156 soil samples)
It is not known what exploration was carried out on the licence prior to 2003.

Work performed by TZM on the Mrangi licence included:
  • Shallow and deep overburden soil sampling (Au assay and multi-element XRF)
  • Lithogeochemical sampling from outcrops (150 samples) and eight trenches
  • Ground geophysics (magnetics; 64 line km)
  • Remote sensing (structural study and alteration)
  • Airborne geophysics (magnetic and radiometric)
  • Reverse Circulation (RC) drilling (58 holes for a total of 8,598 m) and diamond drilling (14 holes for a total of 2,673 m)
Drilling Highlights
Highlights of the drilling are summarized in the map and table below:
Hole From To Interval Au Grade (g/t) Cu Grade (%) Interval
MRRC39 39 40 1 0.43 0.01 1m @ 0.43 g/t Au
MRRC39 82 85 3 0.33 0.01 3m @ 0.33 g/t Au
MRRC40 95 96 1 0.31 0.01 1m @ 0.31 g/t Au
MRRC40 101 102 1 0.36 0.00 1m @ 0.36 g/t Au
MRRC41 65 67 2 0.27 0.00 2m @ 0.2 g/t Au
MRRC44 65 66 1 1.01 0.02 1m @ 1.0 g/t Au
MRRC44 110 116 6 0.06 0.13 6m @ 0.13% Cu
MRRC44 127 170 43 0.02 0.14 43m @ 0.14% Cu
MRRC45 72 74 2 0.33 0.00 2m @ 0.33 g/t Au
MRRC45 122 128 6 0.05 0.19 6m @ 0.19% Cu
MRRC45 149 173 24 0.02 0.10 24m @ 0.10% Cu
MRRC47 45 67 22 0.01 0.08 22m @ 0.08% Cu
MRRC47 97 101 4 0.01 0.11 4m @ 0.11% Cu
MRRC47 197 216 19 0.02 0.16 19m @ 0.16% Cu

Qualified Person
Sandy Archibald, Ph.D., P.Geo., is the Company's designated Qualified Person within the meaning of NI 43-101 and has reviewed and validated that the information contained herein is accurate.