Diamantina Deep Diamantina Deep The Diamantina Deep is located in the Diamantina Trench southwest of Perth, Western Australia. The Diamantina Trench is in the eastern part of the larger Diamantina Fracture Zone, which stretches from the Ninety East Ridge to the Naturaliste Plateau, off the lower part of Southwest Australia. It is one of the deepest points (surpassed by the Sunda Trench) in the Indian Ocean at . It is located about west-southwest of Perth at . A survey in 1961 by the Australian oceanographic survey ship confirmed the bathymetry and conducted a scientific survey. The trench (and the Fracture Zone) was
Diamantina, Minas Gerais Diamantina, Minas Gerais Diamantina () is a Brazilian municipality in the state of Minas Gerais. Its estimated population in 2006 was 44,746 in a total area of 3,870 km². "Arraial do Tijuco" (as Diamantina was first called) was built during the colonial era in the early 18th century. As its name suggests, Diamantina was a center of diamond mining in the 18th and 19th centuries. A well-preserved example of Brazilian Baroque architecture, Diamantina is a UNESCO World Heritage Site. Other historical cities in Minas Gerais are Ouro Preto, Mariana, Tiradentes, Congonhas and Sabará. Diamantina is a statistical micro-region that includes