EESA06H3 Chapter Notes - Chapter 1: Seafloor Spreading, Metamorphic Rock, Peridotite
Document Summary
Derived from greek words geo and logos, meaning the study of the earth . This discipline came into being in the late eighteenth century. The first known geologic map was published in england in 1815 by william smith: he is referred to as the father of english geology . In north america, geological mapping began in the mid-19th century. Sir william logan was the first to describe the geology of canada. The plate tectonics theory considers the outermost rigid shell of the earth to be divided into a number of plates that are in motion relative to one another. Most geologic activity occurs at plate boundaries. Plate tectonics has operated for at least 3. 5 billion years subduction the process where the sea floor slides beneath a continent or island arc. Geochemists study the chemistry of rocks or minerals. Petrologists study the make up of rocks and how they form.
