Maronan Metals (ASX:MMA) has made an announcement about a key resource.

Following the announcement shares of Maronan Metals fell 11.864% to $0.260.

Assays from drill holes MRN22002W1 and MRN22002W2, centred on the Northern Fold structure, have highlighted significant widths of combined lead and silver mineralisation re-enforcing the resource potential at this target area.

When a mining company releases an update about a key resource it?s exciting times for shareholders.

A lot of capital goes into exploration and when a new deposit is found there?s usually a share price boost.

Discovery is the reward stage for investors, particularly of junior mining stocks, searching for undiscovered deposits of natural resources.

When discussing new resource discoveries it?s beneficial to know the difference between greenfield and brown exploration.

Greenfield exploration is looking for mineral deposits in areas that have not been explored.

In brownfield exploration deposits are being sought near or next to an already existing mine.