The city of Oruro lies northwest of Morococala,[2] and the town of Llallagua is just south.
[6] This field covers a surface area of 1,500 square kilometres (580 sq mi).
[4] Morococala is part of the so-called Bolivian tin belt, a string of plutons of Permian to Pliocene age extending from Peru over Bolivia to Argentina.
[10] Some areas are associated with Late Miocene ignimbrites, such as Morococala and Los Frailes Plateau.
[12] The oldest date obtained on intrusive rocks at San Pablo is 23.3 ± 0.4 million years ago.
The second 6.8 million years ago also formed a rhyolitic tuff and originated from the Condoriri caldera.