Miramar Resources Limited (ASX:M2R) has highlighted multiple pegmatite occurrences indicating the potential for Rare Earth Element (REE) and/or Lithium mineralisation through a review of historic and government open file data has at the company’s 100%-owned 210sq km Lang Well Project in the Murchison region of Western Australia.
Information extracted from Geological Survey of Western Australia datasets has revealed at least 50 mapped pegmatite occurrences within the largely covered Lang Well Project, including a swarm of outcropping pegmatites over at least seven km of strike in the northern half of the Project.
The pegmatites occur in a sequence of granitic gneiss and mafic amphibolite that has been intruded by later Proterozoic dolerite dykes. The only significant historical exploration across the Project comprised an auger sampling programme in 2009, however the samples were only analysed for a limited suite of elements.
Significantly, there has been no recorded analysis of REE’s or Lithium for any of the pegmatite occurrences or the auger sampling.
The auger sampling was followed up by a limited aircore programme in 2010 comprising 35 holes across three lines, two of which are outside the current Project tenement. Inside the Project, hole BADAC33 intersected highly anomalous REE’s including 4m @ 0.15% Total Rare Earth Oxides (TREO) from 28-32m. Holes 50m either side also had anomalous REE’s.
No mineral exploration has been undertaken at Lang Well between 2010 and Miramar securing the ground in 2019.
Miramar’s Executive Chairman, Allan Kelly, said the company was excited by the presence of so many pegmatite occurrences and the lack of any systematic REE analysis.
“The Lang Well Project covers a very large area with only about 20% outcrop,” Mr Kelly said. “Most of the 50 recorded pegmatite occurrences occur in the outcropping area in the north whereas the single historical aircore traverse intersected anomalous REE’s in an area of transported cover in the south east.
“We think it is highly likely therefore, that there is potential for a significant number of other pegmatite occurrences either outcropping or below shallow cover,” he said.
The company will shortly complete soil and rock chip sampling across the northern pegmatite trend and is planning a detailed drone magnetic survey over the south-eastern portion of the tenement to aid with the upcoming aircore drilling programme which will test the auger Au anomalism.
For further information please visit: https://www.miramarresources.com.au/
