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Table Mountain (Butte County, California)
North Table Mountain and South Table Mountain are two prominent basaltic mesas overlooking the city of Oroville, California. They lie a few miles north of Oroville in Butte County, California. In the scientific literature, both mesas are also known as North Oroville Table Mountain and South Oroville Table Mountain in order to differentiate them from the Tuolumne Table Mountain, which is also capped by the eroded remnant of a basaltic (or, more properly, a latite) lava flow, in the central foothills of California. They are named for their flat surface, like a table top; because of this it is often mistakenly called ''Table Top Mountain.'' Location and geography North Table Mountain and South Table Mountain are capped by the eroded remnants of a Miocene lava flow.Wagner, D.L. and Saucedo, G.J., 1990. ''Age and stratigraphic relationships of Miocene volcanic rocks along the eastern margin of the Sacramento Valley, California,'' in Ingersoll, R.V., and Nilsen, T.H., eds., ''Sacram ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Basalt
Basalt (; ) is an aphanite, aphanitic (fine-grained) extrusive igneous rock formed from the rapid cooling of low-viscosity lava rich in magnesium and iron (mafic lava) exposed at or very near the planetary surface, surface of a terrestrial planet, rocky planet or natural satellite, moon. More than 90% of all volcanic rock on Earth is basalt. Rapid-cooling, fine-grained basalt is chemically equivalent to slow-cooling, coarse-grained gabbro. The eruption of basalt lava is observed by geologists at about 20 volcanoes per year. Basalt is also an important rock type on other planetary bodies in the Solar System. For example, the bulk of the plains of volcanism on Venus, Venus, which cover ~80% of the surface, are basaltic; the lunar mare, lunar maria are plains of flood-basaltic lava flows; and basalt is a common rock on the surface of Mars. Molten basalt lava has a low viscosity due to its relatively low silica content (between 45% and 52%), resulting in rapidly moving lava flo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cherokee Ruins On Table Mountain
The Cherokee (; chr, ᎠᏂᏴᏫᏯᎢ, translit=Aniyvwiyaʔi or Anigiduwagi, or chr, ᏣᎳᎩ, links=no, translit=Tsalagi) are one of the indigenous peoples of the Southeastern Woodlands of the United States. Prior to the 18th century, they were concentrated in their homelands, in towns along river valleys of what is now southwestern North Carolina, southeastern Tennessee, edges of western South Carolina, northern Georgia (U.S. state), Georgia, and northeastern Alabama. The Cherokee language is part of the Iroquoian languages, Iroquoian language group. In the 19th century, James Mooney, an early American Ethnography, ethnographer, recorded one oral tradition that told of the Tribe (Native American), tribe having migrated south in ancient times from the Great Lakes region, where other Iroquoian Peoples, Iroquoian peoples have been based. However, anthropologist Thomas R. Whyte, writing in 2007, dated the split among the peoples as occurring earlier. He believes that the ori ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
