Why is colored seismic inversion called ‘colored’?
Earth ScienceAsked by: Joseph Pratt The earth’s reflectivity can be considered fractal, and the resulting amplitude spectrum favors high frequencies (spectral blueing). If there was no preferred frequency, then you would have a “white spectrum”, but as there are some frequencies with more energy, then it is called “colored”. What is Coloured inversion? Coloured Inversion is
Migration Routes for Animals from Asia to America
Earth ScienceAsked by: Jennifer Franklin What animal evolved in North America and moved to Asia? Most — about 75 per cent — originated in Europe or Asia, he says. But some animals, such as camels and horses, evolved in North America first and then travelled to Asia, he says. Where is the largest migration of animals
Why are most minerals so rare?
Earth ScienceAsked by: Jennifer Franklin Most minerals are rare because of two reasons: They are not rare, but they inaccessible, or they require very unusual conditions to form. Will we ever run out of minerals? What are minerals? How big is our planet’s supply? So it’s unlikely that Earth will ever run out of minerals. What
First to Sail the Jet Stream Around the World
Earth ScienceAsked by: Reed Laskowski Ferdinand MagellanFerdinand MagellanFerdinand Magellan (/məˈɡɛlən/ or /məˈdʒɛlən/; Portuguese: Fernão de Magalhães, IPA: [fɨɾˈnɐ̃w dɨ mɐɣɐˈʎɐ̃jʃ]; Spanish: Fernando de Magallanes, IPA: [feɾˈnando ðe maɣaˈʎanes]; 4 February 1480 – 27 April 1521) was a Portuguese explorer and a subject of the Hispanic Monarchy from 1518. Who first discovered the jet stream? Wasaburo Oishi
Erosion without weathering?
Earth ScienceAsked by: Reed Laskowski Can there be erosion without weathering? Without weathering, erosion is not possible. Because the two processes work so closely together, they are often confused. However, they are two separate processes. Weathering is the process of breaking down rocks. What causes erosion but not weathering? Wind, water, ice and human activities are
Geological maps of British Columbia
Earth ScienceAsked by: Curtis Cavenaugh What is the geological history of British Columbia? British Columbia is composed of a portion of the ancestral North American Craton as well as two superterranes that were appended to the continent during a pair of Mesozoic collision events. The Coast Range Batholith intruded into the Insular Superterrane about 100 million