Geology of Paraguay Basin. These tholeiites were erupted in the Early Cretaceous in association with the initial opening of the South Atlantic. The Cretaceous volcanism did also created minor outcrops of potassic alkaline volcanics in a graben structure developed between Asunción and Villarrica and in Amambay Department. Cretaceous volcanism did also left small units of sodic alkaline rocks in Misiones Department in southern Paraguay. Geology of Paraguay The country of Paraguay lies geologically at the borderzone between several cratons. Due to thick Cenozoic sediment cover and regolith development few outcrops are available in Paraguay. East of Paraguay River that Precambrian and Early Paleozoic
Economy of Paraguay half, the Chaco, virgin forest is lost to cattle ranching at an annual rate of more than 200.000 hectare (2008). Sustainable wood cultivation is now on the increase. The fishing industry in Paraguay exists almost solely to meet domestic demand. Unlike many South American countries, Paraguay has few mineral resources and very little history of mining success. Foreign companies have explored Paraguay in recent years, searching for overlooked mineral deposits. Small extraction projects exist, seeking lime, clay, and the raw materials necessary to make cement, but the country's iron and steel manufacturers must import raw materials from neighboring countries. In