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#geology Tag

A Lecture I attended a last year! Found the video by the Geological Society of London! Copied Video's Description: Why Earth developed into the crucible of life, and Venus into a hostile wasteland https://www.youtube.com/watch?v=o5FrCUQrFjs The present-day differences in the expression and intensity of volcanism on the planets of the inner solar system serves a testament to the

1) What is a mineral? A mineral is a naturally occurring inorganic crystalline substance, whose compositions are either fixed or vary between certain fixed limits. This excludes, for example, artificial diamonds, coal, volcanic glass. What makes each mineral unique is a combination of its chemical composition and the internal arrangement of its constituent atoms. The

Physical Properties of the Earth The Earth is an oblate spheroid, being slightly flattened at the poles: Equatorial radius = 6378 km Polar radius = 6357 km These measurements are calculated on the assumption that the Earth's surface is smooth, but this is only an approximation since it disregards mountains and ocean depths. However, the difference between