geology - 1 If you were standing on the moon and looking...

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1). If you were standing on the moon and looking back at Earth, you would need a spacesuit that included thermal insulation. The nighttime temperature of the moon typically dips down to -153 o C and reaches -233 o C in regions of permanent shade. A common daytime temperature is 107 o C and may reach 123 o C. Consequently, the surface temperature on the moon rises by about 280 Celsius degrees from the pre-dawn darkness to a maximum in the full sunlight of noon. 25 degrees celcius 2). The Sino-Japanese names for the planets come from basic symbols. For example, the name for Mercury is where { = water and = star or planet} . One planet, Venus, is so bright that it has been reported as being a UFO (unidentified flying object) more often than the collective sum of UFO reports for all the other planets. Venus is represented by where {= gold and = star or planet}. The golden part of Venus’ name comes from its brightness and golden color. Mars is the “fire planet”. It is represented by where { = fire and = planet}. 3). For at least the past 4 billion years, Earth has been differentiated into a core, mantle, and crust. Chemical elements have preferentially migrated into each of these concentric shells during the "cooking" of Earth. Differentiation probably continues today but most migration of chemical elements occurred during early cooking of Earth. Most of the chemical elements became concentrated in the Earth's crust. The mantle has abundant magnesium and the core has iron, nickel, gold, and the platinum- group elements.
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No sodium 4). Transform faults have been reported from coastal Japan. One may differentiate between left-lateral and right-lateral transform faults by identifying the direction of the motion of the block on the far side of the fault (away from the observer). 5). The continents stand above ocean basins because the continents are lighter in density, i.e., 2.7 times water's density versus 3.2 times water's density for oceanic crust. This difference in density is primarily due to a difference in mineralogy between the two types of crust. Continental crust has more quartz and potassium feldspar whereas oceanic crust has more ferromagnesians such as olivine, and more plagioclase feldspar. 6). As far as life processes are concerned, the most important feature of Earth is the presence of liquid water on the planet's surface. 7). The Earth has not always gone around the Sun at the present rate, nor has it rotated on its axis at the same rate. The planet is slowing down in its old age. Two billion years ago, the number of rotations (days) per year was roughly 450. 8). The inner and outer core of Earth do not differ very much in temperature or chemical composition. 9). Geologic sketches commonly exhibit vertical exaggeration.
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geology - 1 If you were standing on the moon and looking...

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