EM2 believes the Silver Mountain project could host a significant stand-alone deposit. Pic: via Getty Images.
Eagle Mountain targets porphyry system potential at Silver Mountain
Mining
share
- EM2 reports up to 64g/t gold, 445g/t silver and 15% lead at Silver Mountain project in Arizona
- Company confident that results further support porphyry targets or stand-alone high grade deposit
- Further fieldwork planned including soil and rock chip sampling
Special Report: Eagle Mountain Mining is zeroing in on porphyry potential at its Silver Mountain project in Arizona, USA, after flagging high-grade assays of up to 64g/t gold, 445g/t silver and 15% lead.
The project is on the Laramide Arc, a northwest-southeast trending geological feature containing world-class porphyry copper mines such as Bagdad, Miami and Resolution.
It also lies on the southern extension of a northeast-southwest prospective metallogenic belt that hosts the United Verde and Iron King volcanogenic massive sulphide (VMS) historical mines.
These new high-grade gold, silver and lead assay results include:
- 64g/t gold, 445g/t silver and 15% lead across 0.5m vein
- 30.4g/t gold across 0.2m breccia zone
- 11.65g/t gold, 67g/t silver and 3% lead grab sample;
- 7.46g/t gold and 181g/t silver grab sample.
Eagle Mountain Mining (ASX:EM2) says there’s also evidence of porphyry and porphyry-related mineralisation similar to large porphyry deposits in Arizona.
Potential porphyry system under cover
“We are excited to be discovering a stable of high-quality targets within this underexplored, world-class mining jurisdiction,” CEO Tim Mason said.
“These targets are supported by the discovery of high-grade gold and silver-rich zones along significant geological trends, including one stretching well over 1km between historic mines.
“Sampling and mapping results suggest the high-grade features could be porphyry related mineralisation.
“These exceptional results complement our previously identified porphyry indicators.
“New outcrops of porphyry alteration have been identified, adding to all the other indicators of a porphyry system under cover.”
The 1km trend presents a compelling exploration target due to its strike length, structures and outcropping high-grade mineralisation, which may support a stand-alone deposit.
Further follow-up field work is underway to establish the extent of mineralisation, alteration and structural extents, with soil sampling and rock chip sampling planned.
Uranium prospectivity in pegmatites
In addition, a pegmatite sample collected during this field program returned 567ppm uranium, 2,276ppm thorium and 2,024ppm Total Rare Earth Oxides (TREEO).
EM2 says continued elevated TREEOs in radioactive pegmatites are promising, given the known association between rare earths and uranium deposits.
Investigation into the extent and relationship between the pegmatites elevated in uranium and a possible porphyry-related system is ongoing.
This article was developed in collaboration with Eagle Mountain Mining, a Stockhead advertiser at the time of publishing.
This article does not constitute financial product advice. You should consider obtaining independent advice before making any financial decisions.
