Highlights from drilling at the Sesmo target, south of the El Domo deposit, included 19.88m at 4.3g/t gold, 95.1g/t silver, 0.09% copper, 0.33% lead and 0.72% lead, from 10.12m.
Adventus said the Sesmo area was characterised by outcropping high-grade gold and silver mineralisation and was last explored in 2007.
El Domo's indicated resource was increased 44% in a January update, to 8.8 million tonnes grading 1.62% copper, 0.27% lead, 2.42% zinc, 2.34g/t gold and 48g/t silver.
Adventus is earning a 75% interest in the 22,000ha project near Las Naves from Salazar Resources (TSXV:SRL), by spending US$25 million on exploration over five years.
Adventus raised C$10 million (US$7.8 million) towards exploration in Ecuador in December.
Its shares had hit a 52-week low last Thursday of C51c, after releasing its annual results, then shot up more than 39% to 85c on Friday. It was unchanged yesterday at 85c, representing a rise of 11.84% year-to-date.
Salazar shares also rose on Friday, from 12.5c to 14c and were unchanged yesterday equating to a gain of 7.69% year-to-date.