Metamorphic rock Metamorphic rock Metamorphic rocks arise from the transformation of existing rock types, in a process called metamorphism, which means "change in form". The original rock (protolith) is subjected to heat (temperatures greater than 150 to 200 °C) and pressure ( or more), causing profound physical or chemical change. The protolith may be a sedimentary, igneous, or existing metamorphic rock. Metamorphic rocks make up a large part of the Earth's crust and form 12% of the Earth's land surface. They are classified by texture and by chemical and mineral assemblage (metamorphic facies). They may be formed simply by being deep beneath
My Name Means Horse My Name Means Horse My Name Means Horse is the second album from American-born Australian folk pop singer, Ross Ryan. Its title references a lyric from his hit single, "I Am Pegasus" (September 1973), which appears thereon. The album, issued in February 1974, was Ryan's most successful. It won Most Popular Australian Album at the 1974 "TV Week" King of Pop Awards. The record was accredited with three gold discs: the first was presented to Ryan by then-Prime Minister, Gough Whitlam. Well ahead of his album, "My Name Means Horse", American-born Australian folk pop singer, Ross Ryan issued a single,