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The Morogoro Property is located approximately 30 kilometres west of Morogoro. The property’s northeast corner is located at S6° 56.9’ E37° 28.6’, and extends approximately 26 kilometres to the west and six kilometres to the south. Property access is on either side the main Trans-Tanzanian Highway, with secondary and tertiary roads transecting the entire area, facilitating easy access to all parts of the property.
Gold has been discovered on the Morogoro property within the last year. There are currently 150 artisan miners working two areas about two km apart on strike with a central “milling” facility. Twenty-five kg. sacks of hand-cobbed, hand-crushed ore are milled in two 45 gallon drum-sized “ball mills”. One hundred and fifty men are reportedly producing 100-150 gms gold (approx. 1 gm/man day) from approximately 1 tonne of processed material.
The Morogoro Property
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Spectacular Results
| Morogoro – Selected Analytical Results from February 2006 Site Visit |
Au ppm |
Description |
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Morogoro Property - Face Sample of Pit at Stop 1 |
<0.05 |
Morogoro Property - Grab of mineralized stockpile - base metals and scordite |
6.45 |
Morogoro Property - Grab from 0,5 m mineralized zone at bottom of pit |
7.41 |
Morogoro Property - Pit sample - grab from mineralized structure in Beta Pit |
63.2 |
Morogoro Property - Crushed Ore from mill site |
20.9 |
Morogoro Property - Pit Sample – Run of Pit – select |
85.5 |
Morogoro Property - Adit -Sample Beta Pit |
14.2 |
Morogoro Property - grab from mineralized structure in Alpha Pit extension |
93.9 |
Morogoro Property - Tailings sample |
3.39 |
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Artesian workings at Morogoro property
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The dominant lithology at Morogoro consists of a northerly striking, gently east dipping package of well-layered amphibolite grade biotitic paragneiss likely derived from graywackes. Thin layers (centimetric) of garnetiferrous quartzite (chert) and lean magnetite iron formation are present as are occasional metric amphibolite layers representing mafic dykes or sills. A fairly massive quartzite unit occurs immediately above the currently mined mineralized interval and may provide a useful marker.
Mineralization in the form of fine visible gold occurs in 1 mm to 10 cm scale foliaform quartz veinlets and / or silicified zones. These mineralized intervals appear concentrated in more deformed portions of the paragneiss and may aggregate two to locally 15% of the rock mass over 3 to 6+ m intervals. Limonite, manganese staining is common and scorodite-plumbojarosite was noted associated with some of the highest grade specimens. Base metals (cpy, sp, gn) are present locally associated with garnet-quartzites. High angle, narrow quartz veins are present locally and may contribute to grade.
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Gold vein at Morogoro Property
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Morogoro appears to represent a foliation parallel, quartz-low sulphide-visible gold system possibly related to flat faults or deformation zones. Base metals and some early gold may also be related to garnet-quartzite layers.
DLKM will start a sequential exploration program that consists of the following:
- compilation of available regional government aeromagnetics and geological information
- systematic channel sampling of mined faces
- mapping out of artisan workings to identify if structural or lithologic-topographic controls on mineralization
- a rotary airblast (RAB) drilling program in and around mined areas.
In addition, a regional program of stream sediments (where possible) and wide-spaced soil traverses will also be considered.
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