Laramide's Exploration Drilling at Amphitheatre Intercepts High-Grade Uranium; Points to a Developing Satellite Deposit
Highlights:
- Drilling at Amphitheatre Prospect returns high-grade uranium intercepts in AMD009
- Mineralization at Amphitheatre shows a relationship with mafic intrusive units sharing potential genetic similarities with the nearby
Westmoreland uranium deposit - Significant intersection within AMD009:
- Broad zone of 11.3m @ 0.23% U3O8
- Including 4.0m @ 0.52% U3O8 from 38.0m
- Also including within 1.0m @1.00% U3O8 from 40.0m
- AMD009 is the first hole to have successfully intersected an apparent feeder mafic dyke system at approximately 190m downhole. This dyke is considered to be a key driver for mineralisation
- Multiple zones of uranium mineralisation also noted within AMD008
- Gold mineralisation co-incident with uranium within the system:
- AMD009 - 2.90 m @ 1.52 g/t Au from 39.10m down dip
As reported on
Furthermore, there is gold mineralisation associated with the system, including 2.90m @1.52 g/t Au from 39.1m (AMD009).
Commenting on the exploration results, Laramide's Vice-President of Exploration Rhys Davies said:
"
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1 Laramide Commences 2024 Australian Drilling Campaign (Press Release dated |
2 Westmoreland Uranium Project Technical Report https://laramide.com/projects/westmoreland-uranium-project/ |
Amphitheatre Uranium Prospect
The Amphitheatre uranium prospect is located 16km northeast of the Junnagunna uranium deposit and expresses as a strong 400m x 300m airborne radiometric anomaly. The area was subject to historical exploration in the late 1960s and early 1970s3 with Laramide rediscovering its potential in the 2022 and 2023 drill programs.
Drilling in 2024 comprised 5 diamond holes (932.7m), which targeted extensions to uranium mineralisation both laterally and down dip and successfully identified new zones for follow up. Initial composite downhole assay results from AMD009 include 4.0m @ 0.52% U3O8 (including within 1.0m @ 1.00% U3O8) within a broader zone of 11.30m @ 0.23% U3O8 from 38m downhole (Table 2).
The Amphitheatre Prospect geology consists of the Cliffdale Volcanics and Westmorland Conglomerate and is predominantly situated within a stratigraphic basal pebble conglomerate (Ptw1). An interpreted north-south trending fault bounds stratigraphy to the east with a massive, medium sandstone and scattered quartz pebbles (Ptw2). Mineralisation is interpreted to be structurally and stratigraphically controlled, displaying an eastern downthrow with no apparent lateral movement (Ptw2 expressing to the east and Ptw1 to the west). Drilling in 2022 and 2023 indicated extensive remobilisation had occurred with secondary mineralisation (observed as carnotite, autunite, torbernite)4 to the west of the north-south fault, whereas mineralisation to the east of the fault comprises of both primary and secondary mineralisation.
AMD009 intersected high-grade uranium mineralisation predominately observed as disseminated uraninite and torbernite within fracture fill and is variably associated with hematite alteration and silicification. A network of quartz veining with epithermal textures is also noted in zones which have returned substantial Au results.
AMD009 is the first hole to have successfully intersected an apparent feeder mafic dyke system at approximately 190m downhole. This dyke is considered a key driver for mineralisation.
Initial interpretation suggests that mineralisation may continue to the north but under alluvial cover, which obscures any surface radiometric response. Follow up holes to test this region are being planned for the end of the 2024 drilling campaign.
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3 Page 6.2 - Westmoreland Uranium Project Technical Report https://laramide.com/projects/westmoreland-uranium-project/ |
Table 1: Drill Collar Details |
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Prospect |
Hole ID |
GDA_Easting |
GDA_Northing |
RL (m) |
Depth (m) |
Grid Azi |
Dip |
Hole type |
Drilling started |
Drilling completed |
AMPHITHEATRE |
AMD008 |
209879 |
8074908 |
93 |
241.6 |
90 |
-60 |
DD |
|
|
AMPHITHEATRE |
AMD009 |
209928 |
8074816 |
90 |
202.9 |
270 |
-80 |
DD |
|
|
AMPHITHEATRE |
AMD010 |
209954 |
8074725 |
90 |
203.4 |
90 |
-60 |
DD |
|
|
AMPHITHEATRE |
AMD011 |
209958 |
8074620 |
99 |
200.3 |
90 |
-60 |
DD |
|
|
AMPHITHEATRE |
AMD012 |
209928 |
8074820 |
90 |
84.5 |
90 |
-55 |
DD |
|
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Table 2: Significant intercepts >100ppm U3O8 |
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Hole |
From |
To |
Length |
U3O8 ppm |
Au g/t |
AMD008 |
29.00 |
30.00 |
1.00 |
148.58 |
0.01 |
AMD008 |
56.00 |
58.00 |
2.00 |
305.41 |
0.03 |
AMD008 |
63.00 |
64.00 |
1.00 |
155.65 |
0.01 |
AMD008 |
70.00 |
71.00 |
1.00 |
298.34 |
0.04 |
AMD008 |
74.00 |
75.00 |
1.00 |
170.98 |
0.01 |
AMD008 |
84.00 |
85.00 |
1.00 |
146.81 |
0.02 |
AMD008 |
96.00 |
101.00 |
5.00 |
142.21 |
0.01 |
AMD008 |
143.00 |
144.00 |
1.00 |
474.04 |
0.02 |
AMD008 |
150.00 |
160.00 |
10.00 |
260.10 |
0.01 |
AMD008 |
165.00 |
167.00 |
2.00 |
124.41 |
0.01 |
AMD008 |
171.00 |
172.00 |
1.00 |
123.82 |
0.01 |
AMD008 |
173.00 |
174.00 |
1.00 |
104.24 |
0.01 |
AMD008 |
232.00 |
233.00 |
1.00 |
116.86 |
0.01 |
AMD009 |
20.00 |
21.00 |
1.00 |
112.02 |
0.01 |
AMD009 |
36.70 |
48.00 |
11.30 |
2274.26 |
0.46 |
Including* |
38.00 |
42.00 |
4.00 |
5230.49 |
1.12 |
Which |
40.00 |
41.00 |
1.00 |
9960.00 |
2.10 |
And* |
46.70 |
48.00 |
1.30 |
2334.82 |
0.05 |
AMD009 |
52.00 |
54.00 |
2.00 |
171.43 |
0.03 |
AMD009 |
69.00 |
71.00 |
2.00 |
267.97 |
0.09 |
AMD009 |
137.00 |
138.00 |
1.00 |
106.72 |
0.01 |
AMD009 |
141.00 |
142.00 |
1.00 |
209.90 |
0.01 |
*included intercepts are above >1000 ppm U3O8. |
The 2024 Westmoreland drilling campaign is continuing with two rigs currently operating at the Junnagunna and Huarabagoo deposits.
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5 Westmoreland Mineral Resource Estimates include an Indicated Mineral Resource totalling 36.0 million pounds of uranium contained in 18.7 million tonnes at an average grade of 0.089% U3O8 and an Inferred Mineral Resource totalling 15.9 million pounds of uranium contained in 9.0 million tonnes at an average grade of 0.083% U3O8 |
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