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Marimaca Copper Corp (ASX:MC2) has completed the re-interpretation of data related to the Pampa Medina project in Chile, enabling it to define a large sediment and volcanic-hosted “mando” copper system linking a series of deposits.
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The data reinterpretation included the Pampa Medina and Madrugador deposits as well as the Pampa West oxide zone, in an area 25 kilometres from the company’s flagship Marimaca oxide deposit.
To augment the data study, Marimaca drilled five broad reconnaissance exploration holes to pinpoint the limits of the area’s mineralised horizon. This information indicated the presence of consistent broad zones of oxide copper mineralization of variable grades in the same stratigraphic horizon across five kilometres by four kilometres.
The latter is the currently defined size of the manto, although extension is a possibility in all directions, and step-out programs are ongoing.
Thus, Marimaca concluded Pampa Medina may be the central part of a larger manto system genetically connecting the Madrugador, Pampa Medina, Sierra Valenzuela (Antofagasta Minerals), and Pampa Norte deposits.
“As with all large-scale mineralizing systems, there is zonation and variability of grade, but we are excited about both the continuity of mineralization in the productive sedimentary and tuff horizons and the large-scale mineralizing events which have impacted them across this area,” Sergio Rivera, vice president of exploration, said.
“The significant east-west step outs at Pampa Norte, either side of the fantastic drill hole at SMR-01, encountered offset faulting and a series of barren dykes, which are important controls of mineralization.”
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Mr Rivera added: “We can now clearly see the potential for 1,000m of the east-west extent of the mineralized envelope for Pampa Medina, which becomes important for resource growth potential in future programs.”
MC2 has been trading at $6 cents
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