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Mining
A recent site visit within Dateline’s Colosseum claim boundary has confirmed the possibility of a large underlying carbonatite occurrence.
After visiting several prospects and outcrops within the Colosseum claims during a recent site visit, the geological team observed several different rock types associated with the outcrops, including fenites and trachytes.
Both rock types are lithologically related to carbonatite complexes and the company’s REE experts believe the rocks are genetically related to the geological events that created the nearby Mountain Pass carbonatite complex.
Dateline Resources (ASX:DTR) says this confirms the possibility of a large underlying carbonatite occurrence and a follow-up program of detailed structural mapping, samping and petrography is now underway.
“The presence of lithologies associated with mantle derived systems such as the Mountain Pass Alkaline-Carbonatite system have not only been confirmed to exist in the Colosseum claim area, but additional previously unknown outcrop occurrences have been found through this field investigation,” Dateline Resources rare earths expert Anthony Mariano said.
“This occurrence of multiple outcrops at a distance of almost a mile apart within the Colosseum claims suggest the possibility of a large underlying alkaline carbonatite occurrence.”
Four samples were collected and submitted for laboratory analysis (ICP/MS).
Lab results showed the relative lanthanide distribution of the rare earth elements for three of the five samples analysed to be similar to rocks associated with carbonatite complexes (i.e no negative europium [Eu] anomaly).
DTR believes the findings from the site visit are encouraging for a number of reasons.
Several analytical techniques used in evaluation of the samples provide data confirming the nature of these rock types.
The occurrence of multiple outcrops of these lithologies at a distance of almost a mile apart within the Colosseum claims suggest the possibility of a large underlying alkaline carbonatite occurrence.
Future work to map the Colosseum claim area for the presence of these lithologies and investigate the possibility of structural controls related to their emplacement is warranted.
Dateline intends to complete a detailed mapping program across all the claims in Q2 2022, before planning a drilling program.
This article was developed in collaboration with Dateline Resources, 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.
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