Mexico’s Best Drilling Intercepts, Fifth Week of February 2024

Torex Gold was the only company to post drilling results from properties in Mexico during the week, releasing very good intercepts. The best gold result was an intercept over 37 m long grading more than 14 gpt gold, for a gpt*m of 521. All the intervals are from different deposits in the Limon Guajes project, located in Guerrero.

Here are some points on the press release describing the mineralization:

  • The ELG Mine Complex …. is hosted in the Mesozoic carbonate-rich Morelos Platform, which has been intruded by Paleocene granodiorite stocks, sills, dikes and afterwards uplifted close to surface by maar-diatreme complexes.
  • Skarn-hosted gold mineralization develops along contacts of the intrusive rocks and carbonate-rich sedimentary rocks
  • At depth, the mineralization has a strong structural control related to the main stages of deformation
  • Early-stage deposition corresponds to skarn alteration and mineralization at ELG and is fairly typical of calcic gold-skarn systems.
  • Zones of coarse, massive, garnet-dominant skarn appear within and along the stock margin, with fine-grained pyroxene-dominant skarn more common at greater distances from the contact with the stock.
  • Significant gold mineralization at ELG is spatially associated with the skarn, preferentially occurring in pyroxene-rich exoskarn but also hosted in garnet-rich endoskarn that has been affected by retrograde alteration, which suggests that the most important gold event is late stage, strongly related to bismuth, and of epithermal origin.
  • The style of mineralization along the El Limón Deep, El Limón Sur, Sub-Sill, and El Limón West Trends is characterized by gold, with locally high silver and copper grades.
  • Given that gold precipitates due to the buffer exerted by the early stage of calc-silicate alteration and sulfide mineralization, it is free and generally dissociated from the previous copper event mainly related to chalcopyrite.

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