ANNUAL INFORMATION FORM ENDEAVOUR MINING CORPORATION

More documents

Recommendations

Info

Gold mineralization correlates with an increase in: Intrusive activity (density of dykes); Density/frequency of structures intersecting the north-south dyke corridor; Silicification and/or sericite + quartz + Fe-carbonate alteration; Pyrite and arsenopyrite mineralization, as well as minor pyrrhotite and chalcopyrite; and Quartz and sulphide veining. The Djambaye II Zone is a more classic intrusive hosted deposit, situated within a north-trending felsic intrusion(s) (and proximal sediments) that lies in the axis of a northerly-trending fold hinge. Mineralization is stockwork style in character, pyrite dominant, with subordinate arsenopyrite and often associated with quartz veins. Higher grade Zones are inferred to occur near cross-structures. Ségala The Ségala Deposit includes the Ségala Main and Ségala NW deposits, and the Ségala SW and Ségala Far NW Zones. The Ségala Main Zone has been traced along a strike of 750 metres, has an average width of 40 m and continuity of mineralization to a depth of at least 600 metres. The mined, and currently deemed mineable portion of the Zone, extends for about 350 to 400 metres along strike and ranges up to 40 metres true thickness with an average true thickness of close to 15 metres. The Main Zone consists of a central, wider core of alteration and mineralization bound to the north and south by several 0.5 to 5 metre wide bands of more intense alteration and mineralization. Gold mineralization is associated with late, narrow, iron carbonate-quartz veins and stringers that intrude the silicified and carbonatized sediment. The veins and stringers usually display somewhat bleached selvages containing coarse to fine grained arsenopyrite crystals and finer disseminated to patchy pyrite (pyrite is also seen to replace arsenopyrite). To a significantly lesser degree, gold is also associated with fractured felsic and intermediate feldspar porphyry dykes. The Ségala NW Zone has been tested along more than a 1,500 metre strike and detail drilled over a 500 metre strike length and to approximately 220 metres depth. This Zone is hosted by an east-southeast trending, weakly to well foliated package of variably altered argillite, siltstone and greywacke. These rocks are cut by several episodes of quartz veins, of which a set of northeast trending, steeply dipping veins are known to contain abundant gold and were selectively mined by artisanal miners. The strike of the Northwest Zone appears to be parallel to the Main Zone. North-east striking structures play a significant role in emplacement of gold as is evident in the Tabakoto pit. Graphitic/carbonaceous Zones are noted to carry some gold values. Mineralized feldspar porphyries were also intersected in narrow sheeted structures. The alteration in the NW Zone is not as well developed in comparison to the Main Zone, lacking a distinct alteration halo and having a more weathered profile. Mineralized Zones at the NW Zone are more discrete and wide spread than in the Main Zone with larger widths of lower grade gold mineralization being more common. Visible gold is contained in some of the veins, especially a cm-scale northeast-trending set. 38
The Ségala SW Zone is associated with a magnetic low away from the main area of orpailleur workings. Drilling intersected mineralization in quartz-carbonate veins within argillite and greywacke. The encompassing host rock is only weakly altered, however arsenopyrite has been observed. Another south-east trending Zone of gold mineralization lies several hundred metres north of the Ségala NW Zone and has been dubbed the Ségala Far NW Zone. This package of mineralized rocks can be traced for several kilometres along strike. Drill holes along this trend almost always intersect anomalous amounts of gold mineralization. Tabakoto The Tabakoto Deposit occurs within and proximal to the core of a tight, upright anticline (or anticline couple), whose axial surface dips steeply (70°-85°) eastward. A suite of metre to decametre scale, felsic to intermediate feldspar (+/- quartz) porphyritic and non-porphyritic dykes cut the folded sequence along the length of the core of the anticline. The main north-south direction of the Tabakoto fold hinge is intersected by numerous northeast (060° Azi) and northwest (305° Azi) striking structures. These cross-structures are directly related to the bulk of the modeled and interpreted gold mineralization at the Tabakoto Deposit, which appears to be mainly associated with Zones of fracturing and brecciation within and proximal to the axial Zone of the Tabakoto anticline. Dar Salam Four mineralized Zones comprise the Dar Salam Deposit; the South, North, NE Orpaillage and Moralia Zones. The Dar Salam South extends over a strike of 630 m north south, has variable widths of between two and 25 m and continuity of mineralization to a depth of at least 300 m. Mineralization in this Zone is similar to that seen at Tabakoto and is most likely an extension to the Tabakoto system. The Dar Salam North Zone comprises several north-northeast trending, low grade gold Zones, up to a combined width of 35 metres that extend along a strike for more than 500 metres and are open to the north and to depth. Within this area there is a higher grade central core that has an average width of five metres, dips steeply to the east and extends to a depth of at least 140 metres. The Moralia Zone extends over a strike of 125 metres northeast, has an average width of two metres and continuity of mineralization to a depth of at least 100 m dipping east. The NE Orpailleur Zone extends over a northerly strike of 150 m, dips steeply east, has an average width of five m and continuity of mineralization to a depth of at least 185 m. Recent artisanal mining activity indicates that the Zone is open to the south. Anomalous gold and arsenic in soils and active orpailleur mining coincide with the NE Orpailleur Zone. Dioulafoundou The Dioulafoundou Deposit lies approximately 2.3 kilometres south of the Tabakoto Pit, and consists of two parallel, northwest-trending lenses of mineralization, the longest of which can be traced for approximately 400 metres along strike. The mineralized Zones appear to plunge steeply to 39
Page 1 and 2: ANNUAL INFORMATION FORM for the fin
Page 3 and 4: Date of Information PRELIMINARY NOT
Page 5 and 6: at the offices of Intertrust Corpor
Page 7 and 8: Under the Avion Arrangement, each o
Page 9 and 10: Divestiture of Non-Core Assets Fink
Page 11 and 12: Changes to Contracts The term of th
Page 13 and 14: Mine / Project Table 2 - Mineral Re
Page 15 and 16: 1.2 Geology The mineralization at t
Page 17 and 18: 1.4 Exploration Exploration activit
Page 19 and 20: Table 1.1: Total Mineral Resource E
Page 21 and 22: Table 1.4: Nzema Gold Mine Mineral
Page 23 and 24: Table 1.5: Main Parameters of Nzema
Page 25 and 26: Table 1.6 represents an example of
Page 27 and 28: Environmental Permit EPA/EIA/278. T
Page 29 and 30: The 2013 exploration program is $2.
Page 31 and 32: Table 1.1 Youga Mineral Resources a
Page 33 and 34: Tabakoto Gold Mine, Mali, West Afri
Page 35 and 36: Air access to the Tabakoto property
Page 37 and 38: Nevsun conducted soil sampling, geo
Page 39: place during the Paleozoic. One suc
Page 43 and 44: The core is described and logged in
Page 45 and 46: Total Tabakoto Resources Dec. 31, 2
Page 47 and 48: Metallurgical Process (i) Existing
Page 49 and 50: It should be noted that the followi
Page 51 and 52: Metallurgical Testwork Consultants
Page 53 and 54: 1.6 DATA VERIFICATION The reliabili
Page 55 and 56: EOS Testwork Results Head Assays an
Page 57 and 58: Thickening, Rheology and Viscosity
Page 59 and 60: In order to determine the quantitie
Page 61 and 62: design, scheduling process, options
Page 63 and 64: washed and rinsed prior to elution.
Page 65 and 66: Table 1.8: Capital Cost Summary US$
Page 67 and 68: Table 1.11: Summary of Financial An
Page 69 and 70: esources are reported above a 0.3g/
Page 71 and 72: esources can be converted to Indica
Page 73 and 74: Mineral Resource Estimate The Vinda
Page 75 and 76: Item Unit Geotechnical Parameters S
Page 77 and 78: Waste Management Waste rock from mi
Page 79 and 80: A discount rate of 5% was selected
Page 81 and 82: such as lack of scientific informat
Page 83 and 84: Finkolo Gold Project, Mali The Fink
Page 85 and 86: under financing arrangements relate
Page 87 and 88: Endeavour will be successful in ove
Page 89 and 90: adequacy of water supply; availabi
Page 91 and 92:
Title to Mineral Holdings Mining co
Page 93 and 94:
Competition The mining industry is
Page 95 and 96:
MARKET FOR SECURITIES Price Range a
Page 97 and 98:
Name and Residence of Director/Offi
Page 99 and 100:
imposed by a court relating to Cana
Page 101 and 102:
(1) “Audit Fees” are the aggreg
Page 103 and 104:
(b) The Youga Report entitled “Te
Page 105 and 106:
2. OPERATION OF THE COMMITTEE Respo
Page 107:
Approve any permissible non-audit e
show all

ANNUAL INFORMATION FORM ENDEAVOUR MINING CORPORATION

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?