Mammoth Minerals (ASX: M79) said results from a full tensor magnetotellurics survey showed intrusive-style architecture from the mapped Anta Q'ilqa and Ichucollo alteration zones at surface to a depth of more than 5 kilometers below the Anta Q'ilqa Target of its Picha Copper Project in Peru, according to a Thursday Australian bourse filing.

The high resistivity zone associated with the interpreted intrusive body identified by the survey correlates with the Ichucollo target, where previous surface channel sampling results include 13.1 meters at 1.4% copper and 10.2 grams per tonne silver.

The resistivity high zones are coincident with magnetic low features observed across the Anta Q'ilqa and Ichucollo Targets in a recent property-wide unmanned aerial vehicle magnetics survey, which supports the working intrusive model for the project, the filing said.