mother lode

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mother lode

1. In mining, the main source of a mineral in given area. We haven't hit the mother lode of silver quite yet—but we will!
2. By extension, an abundance of something. I wasn't looking to expand my record collection, but I sure hit the mother lode when I cleaned out my parents' attic! It's an exciting time to be a researcher in this field, as a mother lode of new data was recently released.
See also: lode, mother
References in periodicals archive ?
A continuous zone of mineralisation has also been identified in the hanging wall of the main lode with intercepts including 1m @ 12.
Lodes in greenstones or meta-sediments--41% * Local placers near granite-greenstone contact--30%, * Local placers over greenstones--19%, * Eluvial or lateritic, lodes not described--4%, * Lodes in granitic and gneissic rocks--3%, and * Geology not reported--3%.
Of interest to note is the repetition of mineralised intersections in some holes, delineating a number of parallel lodes present at depth within the deposit.
330,000 ounce IRGS gold lode in altered granite) that extends to 500m - limit of drilling.
EP 53088 surrounds EP 53111 and encompasses the strike extensions of the Rise and Shine Shear Zone, its inferred up-dip and down-dip extensions and other lodes within the Bendigo Goldfield.
Although production could increase from 25ktpm at the Mount, initially focusing on the relatively uniform German Lodes and then building up to include the best lode out of the packages of Main and Fuchs, the upside potential is also what average grade is realised.
The Contact Lodes are located on the eastern boundary of the basalt unit that contains the West and Central Lodes, at its contact with a sedimentary unit.
Mineralisation at the Young Australian Leases is confined to three parallel lodes (West, Mid and East) striking NE-SW.
These fluids have precipitated economic jasper lodes through replacement of calcareous stratigraphy in three hard rock primary settings;