Mina de São Domingos, an Open Hole to a Chemical Universe

The magnificent chemical landscape from Achada do Gamo, seems to show an hole to the Universe where we can immerse through a puddle of acid waters, reflecting the starlight from Scorpius and planet Saturn shinning bright against the galaxy core. Since the beginning of modern mining activities in the São Domingos Mine, Achada do Gamo was the center of metallurgical activities on extracted minerals. Some heavy elements presented in these minerals have been created billions of years ago in those stars and through supernovae explosions. The gold for example was made from neutron stars during collisions. Although, silver production occurs in less massive stars than those that produce gold—and through an entirely different type of nuclear fusion, called the weak r-process. The sites of nuclear creation of some elements, such as copper, are not really well known and are continuing topics of observational and computational research. The areas of heaps, slag and channels of water, give the landscape a “lunar” aspect. The heaps are composed of different materials with high levels of metals, such as slag and ash, whose leaching through the rainwater leads to the production of acid mine drainage, usually with an ocher or reddish color.|