What natural resources, if any, were discovered or developed over time in Dublin?

Resources and power

Discoveries of silver, lead, zinc, and gypsum have been successfully developed, but the country's dependence on imports for its energy requirements is high. In the early 1980s offshore natural gas wells began production in the Celtic Sea south of County Cork.

Explanation:

The primary natural resources of the Republic of Ireland include natural gas, petroleum, peat, copper, lead, dolomite, barite, limestone, gypsum, silver and zinc. Key industries based on these and other natural resources include fishing, mining, and various forms of agriculture and fish farming.