EverGreen Lithium (ASX:EG1), with the help of Fleet Space Technologies, has confirmed the existence of potential ‘large-scale’ pegmatite targets at its flagship Bynoe Project in the Northern Territory.
The company says these potential targets are situated along strike from Core Lithium’s (ASX:CXO) Carlton and Hang Gong resources within Bynoe’s Survey Area 1 and are characterised by low seismic velocity anomalies similar to those seen in Core’s BP33 survey.
EverGreen reports the survey was completed utilising Fleet Space Technologies’ EXOSPHERE BY FLEET technology, which provides 3D mapping to pinpoint minerals and increase accuracy in drilling targets by utilising the ambient noise tomography (ANT) method.
The company notes the interpretation and analysis of the ANT data within Survey Area 1 is still ongoing and that analyses of Survey Areas 2, 3 and 4 are expected to follow.
The ANT survey was conducted in November 2022 across 4 grids and was designed to identify potential lithium-bearing pegmatites at depth across each grid survey.
Commenting on the discovery of new targets, EverGreen Lithium Head of Exploration Jason Ward says: “This ANT survey has given us another tool to target lithium pegmatites. The preliminary and priority low seismic velocity anomalies appear to show some coincidence with our geochemical and geological interpretations and have also revealed new targets at depth and beneath cover.
“This ANT survey has given us another tool to target lithium pegmatites”
This data will be used together with our geochemical results to assist us in planning our maiden drilling program.”
Also speaking on the discovery and results from Bynoe, Fleet Space Technologies Director of Planetary Geophysics Dr. Gerrit Oliver says the geology of the project, in conjunction with neighbouring mining activities, provides ‘abundant’ low- and high-frequency seismic noise for imaging.
“The data we recorded at EverGreen’s Bynoe Project was exceptional. The proximity to the coast and the nearby mining and exploration activities provided abundant low- and high-frequency seismic noise, which in turn enabled us to image the subsurface down to 500m depth with high resolution.
“The data we recorded at EverGreen’s Bynoe Project was exceptional”
From these results, and our earlier work at Core Lithium’s BP33 pegmatite, it is becoming clear that the method is well-suited to imaging potential pegmatites in this region due to the favourable noise conditions and the velocity contrast between the pegmatites and the host rock.”
EverGreen also notes the 2 anomalously low-velocity zones identified within the velocity model that have the potential to be associated with pegmatites are located within the Central west and northern areas and are estimated to be 400m x 200m and 600m x 300m in size, respectively.
Both of these anomalies are also interpreted to extend from 200m to 600m below surface and 200m to 1000m (the depth limit of the model), respectively.
With the analysis of the data from Survey Area 1 still ongoing, EverGreen Lithium announces geochemical sampling and mapping are currently underway across Bynoe in conjunction with plans for the preparation of a mine management plan (MMP) to enable drilling activities at the project.
EverGreen Lithium is an ASX-listed exploration company focused on its wholly owned prospective lithium spodumene projects in Australia. The company’s flagship Bynoe Lithium Project is located in the Northern Territory and comprises a total land holding of 231km-square.
Fleet Space Technologies is a private agile space company based in South Australia with a mission to connect everything using ‘cutting-edge’ communications and space technologies to enable the next giant leap in human civilisation.
EverGreen had $9.9 million in cash and cash equivalents as of 31 March 2023, as stated in its latest quarterly report.
Write to Adam Drought at Mining.com.au
Images: Fleet Space Technologies