Laguna del Maule (volcano) about fourteen shield volcanoes and stratovolcanoes that have been degraded by glaciation. The Laguna del Maule volcanic field covers a surface area of and contains cones, lava domes, lava flows, and shield volcanoes. There are 130 volcanic vents at Laguna del Maule. The lake is surrounded by 36 silicic coulees and lava domes. Over of the field is covered by these rocks, and volcanic ash and pumice produced by the eruptions has been found in Argentina. Presently some summits around Laguna del Maule reach altitudes of . The volcanic field lies at an average height of . Among the various
Coal by country Coal by country This article includes lists representing proven reserves and production of coal by country. All data is taken from British Petroleum. The reserve list specifies different types of coal and includes countries with at least 0.1% share of estimated world coal reserves. The production list includes countries with coal production close to or larger than 1 million tonnes. According to the International Energy Agency (IEA), the Top 10 Coal Producers (in Mt) in 2011 were: China 3,576 (46%), United States 1,004 (13%), India 586 (8%), Australia 414 (5%), Indonesia 376 (5%), Russia 334 (4%), South Africa 253 (3%),