Males had a median income of $55,297 versus $35,435 for females. The per capita income for the county was $29,475. About 4.9% of families and 7.0% of the population were below the poverty line, including 10.6% of those under age 18 and 6.3% of those age 65 or over.
The Andes Mountains. The Andes Mountains form one of the longest mountain ranges on Earth, stretching over 7,000 km (4,400 miles) along the west coast of South America.The Andes are very narrow in most places and the average width of the Andes is 200 km (124 miles).The height of the Andes is about 4,000 meters (13,123 feet) high, and it includes peaks above 6,000 meters (19,685 feet).he Andes are very narrow in most places and the average width of the Andes is 200 km (124 miles). The height of the Andes is about 4,000 meters (13,123 feet) high, and it includes peaks above 6,000 meters (19,685 feet).
The most common are the following: Basalt and gabbro are usually formed by volcanoes that have an oceanic crust origin, such as Hot Spot volcanoes such as the Hawaiian Islands. Andesitic rocks (Andesite) or Diorite are usually formed by subduction zone (strato-or compositive volcanoes) at convergent boundaries.Rhyolite (formed above ground-extrusive) and granite (intrusive-formed under ground and usually never reaches the surface under eruption conditions).gneous rocks are also formed when volcanoes erupt, causing the magma to rise above the earth's surface. When magma appears above the earth, it is called lava. Igneous rocks are formed as the lava cools above ground. Source(s):