Structure of the Earth discontinuity (a second order discontinuity). The uppermost mantle together with the crust constitutes the lithosphere. The crust-mantle boundary occurs as two physically different events. First, there is a discontinuity in the seismic velocity, which is most commonly known as the Mohorovičić discontinuity or Moho. The cause of the Moho is thought to be a change in rock composition from rocks containing plagioclase feldspar (above) to rocks that contain no feldspars (below). Second, in oceanic crust, there is a chemical discontinuity between ultramafic cumulates and tectonized harzburgites, which has been observed from deep parts of the oceanic crust that have been
The Good Earth cannot remember what I did with that manuscript." After Buck died in 1973, her heirs reported it stolen. It finally turned up at Freeman's Auctioneers & Appraisers in Philadelphia around 2007 when it was brought in for consignment. The FBI were notified and it was handed over by the consignor. The Good Earth The Good Earth is a novel by Pearl S. Buck published in 1931 that dramatizes family life in a Chinese village in the early 20th century. It is the first book in a trilogy that includes "Sons" (1932) and "A House Divided" (1935). It was the best-selling