Answer: Heidi Doody. Heidi Doody was built by Margo Rose and had the voice of Norma MacMillan and Donna Miller. Heidi was introduced as a stranger who saved Buffalo Bob's life in Africa. Later, Heidi was adopted and became Howdy's sister.
The descending of rock layers at subduction zones causes metamorphism in two ways; the shearing effect of the plates sliding past each other causes the rocks coming in contact with the descending rocks to change. Some of the descending rock will melt because of this friction.
The process of one plate diving under the other is called subduction. Thrust faults can produce larger earthquakes than strike-slip faults. The fault that caused the Sumatra earthquake and tsunami in December 2004 was this sort of fault. Rock may seem brittle, but itâs actually quite elastic.