Interesting...

"Critical to their rivalry -- particularly from Earth’s viewpoint -- was the fact that Enki had been the first of the Anunnaki to hazard a trip to Earth to begin a mining operation for gold. When this effort did not apparently produce gold in sufficient quantities, Enlil was brought in, given command, and armed with a new plan (an early version of the New Deal). The revised program was to mine gold from deep mines in the Earth."