PriceSensitive

Buxton Resources obtains high-grade copper and silver samples at new Arivaca asset

ASX News, Materials
ASX:BUX      MCAP $14.99M
31 August 2026 15:30 (AEST)

Rock chip samples from Arivaca showing gossanous quartz veining, limonitic clay, oxide copper mineralisation hosted within andesite.

Buxton Resources (ASX: BUX) has been granted 14.2 sq. km of tenure at the Arivaca project in southern Arizona’s Laramide porphyry belt.

Listen to the HotCopper podcast for in-depth discussions and insights on all the biggest headlines from throughout the week. On Spotify, Apple, and more.

The tenure is located approximately 30 km southwest of Freeport-McMoRan’s Sierrita copper-molybdenum mining complex and consists of eight mineral exploration permits acquired for application and two-year rent fees totalling US$11,000 with initial expenditure commitments being US$35,000 per annum.

Buxton has completed initial reconnaissance rock-chip sampling at Arivaca, which returned assay results up to 6.21% copper and 1,355 grams per tonne (g/t) silver, along with high levels of gold (up to 0.55 g/t) plus lead, zinc and antimony.

“Arivaca is exactly the kind of opportunity Buxton is pursuing in Arizona — 100%-owned, acquired at low cost, with high-grade surface mineralisation in an under-explored setting within the proven Laramide porphyry belt,” CEO, Marty Moloney, said.

“The geochemistry, veining, alteration and magnetics all point to potential for a porphyry-style mineral system at depth at Arivaca. We’re looking forward to commencing detailed mapping and geophysics ahead of our first drill program.”

The highest-grade samples were collected from dumps adjacent to historic mine workings.

A prominent airborne magnetic low is semi-coincident with the area of anomalous geochemistry. This magnetic anomaly may indicate a deeper felsic intrusion — such bodies typically underlie porphyry mineral systems.

“Buxton’s generative and reconnaissance dataset provides strong encouragement for further exploration for porphyry-style Cu-Mo mineralisation at Arivaca. Geological Field Operations Plans (GFOPs) have been submitted to the Arizona State Lands Department to allow Buxton to undertake detailed mapping and surface sampling, detailed airborne magnetics, and drill testing,” Mr Moloney said.

BUX was up 8.57% to 3.8¢. Mkt cap $14.99M.

Join the discussion: See what HotCopper users are saying about Buxton Resources right now and be part of the conversations that move the markets.

The material provided in this article is for information only and should not be treated as investment advice. Viewers are encouraged to conduct their own research and consult with a certified financial advisor before making any investment decisions. For full disclaimer information, please click here.

Related News