What is an explanation for the fact, experimentally proven, that quartz sand grains are rounded much faster by wind than by a river?
Answer to relevant QuestionsWhy do boulders, cobbles, and pebbles round with only a few kilometers of transport whereas sand is difficult to round and silt hardly ever becomes rounded?What does a conglomerate indicate about the energy conditions in the environment of deposition?In Chapter 4, “clay minerals” are discussed. Yet, in Problem 5.5, clay has a size connotation. Does the word clay have a dual meaning?What is the most abundant chemically (or biochemically) precipitated rock?Estimate the fatigue strength of a rotating-beam specimen made of AISI 1020 hot-rolled steel corresponding to a life of 12.5 kilocycles of stress reversal. Also, estimate the life of the specimen corresponding to a stress ...
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