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 hydropower plant, Yacyretá, with Argentina. Paraguay uses only a small portion of the energy it generates through Itaipú and Yacyretá. In 2002 Paraguay generated more than 48 billion kilowatt-hours of energy. It consumed only 2.5 billion kilowatt-hours while exporting 45.9 billion kilowatt-hours. Paraguay will have even more hydroelectricity to export when planned new turbines are installed at Itaipú and the Yacyretá dam is fully completed. In 2007 electricity production rose to 70 TWh, and exports reached 64 TWh which put Paraguay in second place worldwide as an exporter of electrical power (And in the first place as a net exporter