Projects
Nevada
- Why Nevada
- CORTEZ TREND PROPERTIES
- Angel Wing
- Iron Point
- Redlich
- Big Blue
- East Spruce
- Kibby Flat
- Mustang
Colombia
- Why Colombia
- Pavo Real
Angel Wing
Summary
The Angel Wing project consists of 87 unpatented lode claims (2.8 sq mi / 7.3sq km) in northeast Elko County, Nevada (Figure 1). Two styles of epithermal gold mineralization are associated with a +6 mile (9.6km) long, northeast-striking structural zone that cuts Permian and Triassic carbonate rocks, and Tertiary sedimentary / volcanic rocks. High-grade, surface samples up to 2.70 oz Au/t (92.5 g Au/t) occur in steeply dipping quartz-calcite-adularia "bonanza" veins within Triassic limestone. The high-grade veins remain untested in a zone measuring one mile (1.6 km) along strike, 1,200 feet (366 m) wide and at depth. Surface sampling also identified disseminated, sediment-hosted gold mineralization up to 0.044 oz Au/t (1.507g Au/t) in silicified and clay altered Paleozoic and Tertiary rocks. Shallow drilling for disseminated gold returned 0.047 oz Au/t over 50 feet (1.609 g Au/t over 15.2 m) in drill hole DC-7.
On September 17, 2010, Miranda signed an exploration and option to joint venture agreement with Ramelius Resources Ltd, an Australian gold producer. Under the terms of the agreement, Ramelius will fund US$4,000,000 in qualifying expenditures over a five-year period as an initial exploration expenditure. Ramelius can then earn a 70% interest in Angel Wing by completing a positive feasibility study over a four-year period or by annually funding $1,000,000 in exploration and development during the next 10 years. The first year's commitment of $350,000 is an obligation and includes a minimum of 4,000 ft (1,219 m) of drilling.
Location
The project is located 30 miles (48km) north of Montello, Nevada. The property is immediately west of the Nevada - Utah border. Access from Montello is along a gravel road that is accessible from early April through late November.
Geology
The oldest rocks exposed are Permian and Triassic limestone, siltstone, bioclastic limestone and calcareous sandstone (Figure 2). Strongly carbonaceous, thin-bedded limestone has been encountered in drill holes. These rocks are broadly folded and are unconformably overlain by Tertiary fanglomerates, tuffs and basalt. Overlying and intruding this package are rhyolite and post-mineral rhyodacite.
North-south high angle faults disrupt stratigraphy and provide controls for hydrothermal fluids. Two styles of gold mineralization occur at Angel Wing including:
Low-level gold with high indicator elements occurs over a wide area in opalized and alunite altered Tertiary rhyolite and sediments. This is believed to be the highest preserved level of the hydrothermal system and is defined by a "blanket" zone of silicifcation that formed at the paleo-groundwater table. Multiple north-trending structural zones exhibit strong alteration of this type and may be good indicators of high-grade mineralization at depth. Very little prospecting and no drilling has been done on this target area.
Exploration History
In the late 1980's, Amax Gold staked claims and drilled at White Rock Mountain, approximately two miles north of the Angel Wing property. Amax identified an 8 million ton, 0.017 oz Au/t gold inventory (0.583 g Au/t) in the Permian Murdock Mountain Formation. Two holes were also drilled in the southern part of this large claim group, in an area now covered by the Angel Wing claims. Mount Isah Mines, Kennecott and Terraco Gold also conducted exploration programs north of the present Angel Wing claims.
In 1991, Teck Resources conducted a regional stream-sediment program that was followed up with staking of a claim block in the Death Creek area. Mapping, soil and rock sampling defined a large area of anomalous gold in a variety of host rocks (Figure 6). A total of twenty-nine holes were drilled in four phases from November 1991 to November 1995. Mostly vertical drilling targeted shallow, disseminated gold in limestone to a maximum depth of 600 feet (183 m). Drill holes within the existing claim block are illustrated on Figure 7.
Target Discussion
The Angel Wing project contains gold mineralization in a variety of settings and host rocks. Gold-bearing quartz veins and structures have a strike length of at least four miles (6.4 km) in a north-south direction. Most structures are poorly exposed, or concealed by younger Tertiary rocks which are either unreceptive hosts or too high in the paleo-hydrothermal system. Past exploration focused on shallow, bulk minable gold deposits, and the outcropping, high-grade veins were essentially ignored. Surface geologic patterns indicate favorable conditions exist for the discovery of a bonanza-grade gold deposit at depth.
Several well-defined targets exist on the property. Two previous vertical drill holes, DC-4 and DC-7 encountered highly anomalous gold just below the Tertiary unconformity in jasperoid and quartz/after calcite veins (Figure 8). High-grade veins are poorly exposed south of these drill holes and generally define a north-south zone of mineralization. The veins appear to be steeply dipping and have not been trenched/mapped/sampled or drill tested. Similar veins with up to 0.015 oz Au/t (0.514g Au/t) crop out one mile (1.6 km) north of these exposures and are interpreted as part of the same structural trend. Systematic soil sampling, geologic mapping, trenching and inclined drilling are recommended to evaluate these targets for their gold potential.
Opalized zones within the overlying rhyolite coincide with projections of known mineralized structures and probably reflect high level, steam-heated alteration related to these zones. Very little work has been done to assess the relationship between this high level alteration and mineralization at depth. Additional geologic mapping and geochemistry may resolve and upgrade concealed high-grade vein targets below this alteration.
NEVADA PROJECTS (USA)
Figure 7: Angel Wing project location in Nevada USA
ANGEL WING JOINT VENTURE NEVADA (USA) (Ramelius and Marmota earning 70%)
Two phases of RC drilling was completed at Angel Wing during the quarter. The programmes consisted of seven holes (AW12-06 - AW12-12) for an aggregate 1,891.23m (Figure 8). A summary of the drilling completed is tabled below.
Table 12: Angel Wing JV Exploration RC Drilling
Figure 8: Plan view showing the spatial extent of anomalous drilling proximal to the Grass Hollow intrusion, over image of RTP 1VD ground magnetic data
Broad anomalous gold intersections of 22.86m at 1.21 g/t Au including 1.52m at 14.15 g/t Au and 27.43m at 0.65 g/t Au including 6.10m at 2.09 g/t Au (using a 0.10 g/t Au lower cut) were intersected in holes AW12-06 and AW12-08 respectively. These encouraging intersections represent anomalous lateral dispersion within highly permeable Tertiary conglomerates and decalcified Triassic limestone rocks stratigraphically below the outcropping Tertiary rhyolite tuffs that conceal the Grass Hollow rhyolite intrusion.
Follow up drilling confirmed the presence of anomalous gold mineralisation associated with the conglomerate - limestone unconformity. Best result was 9.14m at 2.62 g/t Au including 4.57m at 4.98 g/t Au in AW12-12 (Figure 9).
A complete list of gold anomalous drill hole intersections are presented in Appendix 2, where true widths are estimated at 90% of the reported down hole intersections.
Comparative anomalous 6m composite silver mineralisation (>1.0 g/t Ag); coincident with the dispersed gold interface anomaly report as follows:
Step out drilling will be undertaken during the 2013 field season, after the northern hemisphere's winter recess.
Figure 9: East west cross section through 4619180mN (NAD27) showing the distribution of anomalous gold within the drill traces. Mineralisation remains open in all directions
Appendix 2: Anomalous (>0.10 g/t Au) 1m RC drilling results for the Angel Wing JV Project Nevada - USA
Reported anomalous gold assay intersections (using a 0.10 g/t Au lower cut) are calculated over a minimum down hole interval of 1.52m at plus 0.10 g/t gold and may contain up to 3.04m of internal dilution. NSR denotes no anomalous assays above 0.10g/t Au. BLD denotes below analytical detection. Gold determination was by Fire Assay using a 30 gram charge and AAS finish, with a lower limit of detection of 0.001 g/t Au. Trace element determination was by ICP-MS. True widths are estimated to represent 90% of the reported down hole intersections. No sample, refers to a sample lost in transit and will be recollected.
Comparative 6m composite silver (Ag) analyses (using 1.0 g/t Ag lower cut and up to 12m internal dilution)
AW12-06: 30.48m @ 3.08 g/t Ag from 219.45 - 286.51m and 12.19m @ 1.78 g/t Ag from 274.32 - 286.51m
AW12-07: No significant results greater than 1.0 g/t Ag
AW12-08: 6.10m @ 2.13 g/t Ag from 158.49 - 164.59m and 91.44m @ 2.79 g/t Ag from 201.19 - 292.61m
AW12-09: 6.10m @ 1.04 g/t Ag from 42.67 - 48.77m and 12.19m @ 1.28 g/t Ag from 91.44 - 103.63m
AW12-10: 36.57m @ 1.87 g/t Ag from 213.36 - 249.93m
AW12-11: 79.25m @ 1.79 g/t Ag from 164.59 - 243.84m
AW12-12: 73.15m @ 1.14 g/t Ag from 237.74 - 310.89m
The Angel Wing project consists of 87 unpatented lode claims (2.8 sq mi / 7.3sq km) in northeast Elko County, Nevada (Figure 1). Two styles of epithermal gold mineralization are associated with a +6 mile (9.6km) long, northeast-striking structural zone that cuts Permian and Triassic carbonate rocks, and Tertiary sedimentary / volcanic rocks. High-grade, surface samples up to 2.70 oz Au/t (92.5 g Au/t) occur in steeply dipping quartz-calcite-adularia "bonanza" veins within Triassic limestone. The high-grade veins remain untested in a zone measuring one mile (1.6 km) along strike, 1,200 feet (366 m) wide and at depth. Surface sampling also identified disseminated, sediment-hosted gold mineralization up to 0.044 oz Au/t (1.507g Au/t) in silicified and clay altered Paleozoic and Tertiary rocks. Shallow drilling for disseminated gold returned 0.047 oz Au/t over 50 feet (1.609 g Au/t over 15.2 m) in drill hole DC-7.
On September 17, 2010, Miranda signed an exploration and option to joint venture agreement with Ramelius Resources Ltd, an Australian gold producer. Under the terms of the agreement, Ramelius will fund US$4,000,000 in qualifying expenditures over a five-year period as an initial exploration expenditure. Ramelius can then earn a 70% interest in Angel Wing by completing a positive feasibility study over a four-year period or by annually funding $1,000,000 in exploration and development during the next 10 years. The first year's commitment of $350,000 is an obligation and includes a minimum of 4,000 ft (1,219 m) of drilling.
Location
The project is located 30 miles (48km) north of Montello, Nevada. The property is immediately west of the Nevada - Utah border. Access from Montello is along a gravel road that is accessible from early April through late November.
Geology
The oldest rocks exposed are Permian and Triassic limestone, siltstone, bioclastic limestone and calcareous sandstone (Figure 2). Strongly carbonaceous, thin-bedded limestone has been encountered in drill holes. These rocks are broadly folded and are unconformably overlain by Tertiary fanglomerates, tuffs and basalt. Overlying and intruding this package are rhyolite and post-mineral rhyodacite.
North-south high angle faults disrupt stratigraphy and provide controls for hydrothermal fluids. Two styles of gold mineralization occur at Angel Wing including:
- Steeply dipping quartz-calcite-adularia veins with high-grade visible gold and values up to 2.70 oz Au/t (92.5 g Au/t) occur across a one square mile (2.6 sq km) area within Triassic carbonate rocks (Figure 3 and 4). At surface, banded veins have widths ranging from a few inches (5 cm) to over ten feet (3 m) (Figure 5). The veins can be traced for over one mile (1.6km) along a north-northeast striking structural trend up to 1,200 feet (360m) wide. Veins exhibit textures and mineralogy indicative of boiling, including quartz replacing bladed calcite, adularia and hydrothermal breccias. The veins rarely propagate into the overlying Tertiary rocks and are mostly concealed, similar to the geologic setting of Hishikari, Japan and Hollister, Nevada. In spite of their high gold grades, the veins were never prospected in the past and have not been drill tested.
- Sediment-hosted, Carlin-style gold alteration and mineralization occur over four square miles (11sq km). Decalcification and silicification (jasperoid) are developed in Triassic carbonate rocks and Tertiary sediments. Hydrothermal alteration and gold mineralization favor fossiliferous or sandy units. The jasperoids contain up to 0.283 oz Au/t(9.710g Au/t and appear to be an early mineralization event. This alteration may be a mid-high level manifestation of the paleo-hydrothermal system associated with high-grade veins at depth. Indicator elements including arsenic, antimony and selenium are generally higher than in the veins. Shallow drilling, targeting this style of mineralization, intersected weakly-moderately anomalous gold in 26 out of 29 drill holes.
Low-level gold with high indicator elements occurs over a wide area in opalized and alunite altered Tertiary rhyolite and sediments. This is believed to be the highest preserved level of the hydrothermal system and is defined by a "blanket" zone of silicifcation that formed at the paleo-groundwater table. Multiple north-trending structural zones exhibit strong alteration of this type and may be good indicators of high-grade mineralization at depth. Very little prospecting and no drilling has been done on this target area.
Exploration History
In the late 1980's, Amax Gold staked claims and drilled at White Rock Mountain, approximately two miles north of the Angel Wing property. Amax identified an 8 million ton, 0.017 oz Au/t gold inventory (0.583 g Au/t) in the Permian Murdock Mountain Formation. Two holes were also drilled in the southern part of this large claim group, in an area now covered by the Angel Wing claims. Mount Isah Mines, Kennecott and Terraco Gold also conducted exploration programs north of the present Angel Wing claims.
In 1991, Teck Resources conducted a regional stream-sediment program that was followed up with staking of a claim block in the Death Creek area. Mapping, soil and rock sampling defined a large area of anomalous gold in a variety of host rocks (Figure 6). A total of twenty-nine holes were drilled in four phases from November 1991 to November 1995. Mostly vertical drilling targeted shallow, disseminated gold in limestone to a maximum depth of 600 feet (183 m). Drill holes within the existing claim block are illustrated on Figure 7.
Target Discussion
The Angel Wing project contains gold mineralization in a variety of settings and host rocks. Gold-bearing quartz veins and structures have a strike length of at least four miles (6.4 km) in a north-south direction. Most structures are poorly exposed, or concealed by younger Tertiary rocks which are either unreceptive hosts or too high in the paleo-hydrothermal system. Past exploration focused on shallow, bulk minable gold deposits, and the outcropping, high-grade veins were essentially ignored. Surface geologic patterns indicate favorable conditions exist for the discovery of a bonanza-grade gold deposit at depth.
Several well-defined targets exist on the property. Two previous vertical drill holes, DC-4 and DC-7 encountered highly anomalous gold just below the Tertiary unconformity in jasperoid and quartz/after calcite veins (Figure 8). High-grade veins are poorly exposed south of these drill holes and generally define a north-south zone of mineralization. The veins appear to be steeply dipping and have not been trenched/mapped/sampled or drill tested. Similar veins with up to 0.015 oz Au/t (0.514g Au/t) crop out one mile (1.6 km) north of these exposures and are interpreted as part of the same structural trend. Systematic soil sampling, geologic mapping, trenching and inclined drilling are recommended to evaluate these targets for their gold potential.
Opalized zones within the overlying rhyolite coincide with projections of known mineralized structures and probably reflect high level, steam-heated alteration related to these zones. Very little work has been done to assess the relationship between this high level alteration and mineralization at depth. Additional geologic mapping and geochemistry may resolve and upgrade concealed high-grade vein targets below this alteration.
The following is the Ramelius Summary Report for Angel Wing, provided October 2012
NEVADA PROJECTS (USA)
Figure 7: Angel Wing project location in Nevada USA
ANGEL WING JOINT VENTURE NEVADA (USA) (Ramelius and Marmota earning 70%)
Two phases of RC drilling was completed at Angel Wing during the quarter. The programmes consisted of seven holes (AW12-06 - AW12-12) for an aggregate 1,891.23m (Figure 8). A summary of the drilling completed is tabled below.
Table 12: Angel Wing JV Exploration RC Drilling
Hole Id |
GDA E |
GDA N |
Depth (m) |
Az/Dip |
Comments |
|---|---|---|---|---|---|
AW12-06 |
742580 |
4619101 |
300.22 |
270/-70 |
Resistive trend west of Grass Hollow |
AW12-07 |
743318 |
4621119 |
178.31 |
270/-60 |
Soil anomaly north of Grass Hollow |
AW12-08 |
742629 |
4619177 |
333.71 |
090/-50 |
Grass Hollow intrusive |
AW12-09 |
742834 |
4618752 |
147.83 |
270/-50 |
DaVinci Fault south of Grass Hollow |
AW12-10 |
742580 |
4619101 |
297.18 |
360/-90 |
Resistive trend west of Grass Hollow |
AW12-11 |
742630 |
4619178 |
304.80 |
090/-64 |
Grass Hollow intrusive |
AW12-12 |
742621 |
4619177 |
329.18 |
268/-60 |
Resistive trend west of Grass Hollow |
Figure 8: Plan view showing the spatial extent of anomalous drilling proximal to the Grass Hollow intrusion, over image of RTP 1VD ground magnetic data
Broad anomalous gold intersections of 22.86m at 1.21 g/t Au including 1.52m at 14.15 g/t Au and 27.43m at 0.65 g/t Au including 6.10m at 2.09 g/t Au (using a 0.10 g/t Au lower cut) were intersected in holes AW12-06 and AW12-08 respectively. These encouraging intersections represent anomalous lateral dispersion within highly permeable Tertiary conglomerates and decalcified Triassic limestone rocks stratigraphically below the outcropping Tertiary rhyolite tuffs that conceal the Grass Hollow rhyolite intrusion.
Follow up drilling confirmed the presence of anomalous gold mineralisation associated with the conglomerate - limestone unconformity. Best result was 9.14m at 2.62 g/t Au including 4.57m at 4.98 g/t Au in AW12-12 (Figure 9).
A complete list of gold anomalous drill hole intersections are presented in Appendix 2, where true widths are estimated at 90% of the reported down hole intersections.
Comparative anomalous 6m composite silver mineralisation (>1.0 g/t Ag); coincident with the dispersed gold interface anomaly report as follows:
- AW12-06: 30.48m @ 3.08 g/t Ag from 219.45m and 12.19m @ 1.78 g/t Ag from 274.32m
- AW12-08: 6m @ 2.13 g/t Ag from 158.49m and 91.44m @ 2.79 g/t Ag from 201.19m
- AW12-09: 6m @ 1.04 g/t Ag from 42.67m and 12.19m @ 1.28 g/t Ag from 91.44m
- AW12-10: 36.57m @ 1.87 g/t Ag from 213.36
- AW12-11: 79.25m @ 1.79 g/t Ag from 164.59m
- AW12-12: 73.15m @ 1.14 g/t Ag from 237.74m
Step out drilling will be undertaken during the 2013 field season, after the northern hemisphere's winter recess.
Figure 9: East west cross section through 4619180mN (NAD27) showing the distribution of anomalous gold within the drill traces. Mineralisation remains open in all directions
Appendix 2: Anomalous (>0.10 g/t Au) 1m RC drilling results for the Angel Wing JV Project Nevada - USA
Hole Id |
Easting |
Northing |
Az/Dip |
F/Depth (m) |
From (m) |
To (m) |
Interval (m) |
g/t Au |
|---|---|---|---|---|---|---|---|---|
AW12-06 |
742580 |
4619101 |
270/-70 |
300.22
Incl. |
137.16 164.60 167.64 187.46 225.55 236.22 251.46 272.80 |
138.68 166.12 169.16 188.98 248.41 237.74 268.22 286.51 |
1.52 1.52 1.52 1.52 22.86 1.52 16.76 13.71 |
0.17 0.11 0.10 0.36 1.21 14.15 0.27 0.32 |
AW12-07 |
743318 |
4621119 |
270/-60 |
178.31 |
NSR |
|||
AW12-08 |
742629 |
4619177 |
090/-50 |
333.71
Incl. |
156.97 160.02 213.36 220.98 225.55 248.41 248.41 291.08 |
158.49 163.06 214.88 222.50 230.12 275.84 254.51 292.60 |
1.52 3.04 1.52 1.52 4.57 27.43 6.10 1.52 |
0.15 0.17 0.17 0.24 0.15 0.65 2.09 0.11 |
AW12-09 |
742834 |
4618752 |
270/-50 |
147.83 |
94.48 |
102.11 |
7.63 |
0.36 |
AW12-10 |
742580 |
4619101 |
360/-90 |
297.18 |
214.88 233.17 277.37 |
216.40 251.46 278.89 |
1.52 18.29 1.52 |
0.13 0.16 0.11 |
AW12-11 |
742630 |
4619178 |
090/-64 |
304.80 |
204.22 205.74 207.26 217.93 227.08 237.74 262.13 |
205.74 207.26 211.83 219.45 228.60 243.84 263.65 |
1.52 1.52 4.57 1.52 1.52 6.10 1.52 |
0.15 No sample 0.30 0.12 0.16 0.62 0.12 |
AW12-12 |
742621 |
4619177 |
268/-60 |
329.18 Incl. Incl. |
243.84 260.60 262.13 263.65 278.89 283.47 300.23 306.32 |
246.88 269.74 266.70 265.17 280.41 286.51 301.75 310.89 |
3.04 9.14 4.57 1.52 1.52 3.04 1.52 4.57 |
0.27 2.62 4.98 10.6 0.24 0.13 0.57 0.31 |
Reported anomalous gold assay intersections (using a 0.10 g/t Au lower cut) are calculated over a minimum down hole interval of 1.52m at plus 0.10 g/t gold and may contain up to 3.04m of internal dilution. NSR denotes no anomalous assays above 0.10g/t Au. BLD denotes below analytical detection. Gold determination was by Fire Assay using a 30 gram charge and AAS finish, with a lower limit of detection of 0.001 g/t Au. Trace element determination was by ICP-MS. True widths are estimated to represent 90% of the reported down hole intersections. No sample, refers to a sample lost in transit and will be recollected.
Comparative 6m composite silver (Ag) analyses (using 1.0 g/t Ag lower cut and up to 12m internal dilution)
AW12-06: 30.48m @ 3.08 g/t Ag from 219.45 - 286.51m and 12.19m @ 1.78 g/t Ag from 274.32 - 286.51m
AW12-07: No significant results greater than 1.0 g/t Ag
AW12-08: 6.10m @ 2.13 g/t Ag from 158.49 - 164.59m and 91.44m @ 2.79 g/t Ag from 201.19 - 292.61m
AW12-09: 6.10m @ 1.04 g/t Ag from 42.67 - 48.77m and 12.19m @ 1.28 g/t Ag from 91.44 - 103.63m
AW12-10: 36.57m @ 1.87 g/t Ag from 213.36 - 249.93m
AW12-11: 79.25m @ 1.79 g/t Ag from 164.59 - 243.84m
AW12-12: 73.15m @ 1.14 g/t Ag from 237.74 - 310.89m