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 Most Hated Family in America commented that the airing of the documentary, "saw Louis Theroux, in "The Most Hated Family in America", shatter another redneck American target, the Westboro Baptist Church". In a review of the documentary for "The Sunday Times", Roland White discussed Theroux's stylistic technique, "Theroux's usual technique – the friendly ingenue – made absolutely no impact on these people. It was like watching a youngster from a village cricket team trying to bowl out Geoff Boycott, and I began to wonder what Theroux was hoping to achieve. It is impossible to out–argue the religious bigot. They have impeccable logic on their side: