Individual #economic_geology  the branch of geology that deals with economically valuable geological materials
  >part of:  #geology  a science that deals with the history of the earth as recorded in rocks
  >part:  #petroleum_geology__petroleumgeology  the branch of economic geology that deals with the occurrence and exploitation of oil and gas fields
  >part:  #mining_geology  the branch of economic geology that deals with the applications of geology to mining

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