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
San Juan Bautista, Paraguay Mangoré, today a museum and a cultural center, is frequented by tourists. Other interesting locations in the vicinity are: Beyond San Juan Bautista, an unpaved road goes to Santa María. Another road also goes to Route 4th and to Pilar in Ñeembucú. Agustín Pío Barrios (Mangoré) was born in San Juan Misiones. He was a famous Paraguayan guitarist. The current governor is Victor H. Pereira. San Juan Bautista, Paraguay San Juan Bautista (), capital of the Department of Misiones, Paraguay, is considered the cradle of the religious mission culture. The city is the seat of the Roman Catholic Diocese of