EESA06H3 Lecture Notes - Lecture 7: Calcite, Basalt, Phanerite
Document Summary
5-7, 9, 10, rocks and minerals: clue to ancient. Quiz 6 (friday march 2nd) is based on this lecture and chapters 5, 7, 9 and 10. Can tell us a lot about where they"ve been. Quartz is very resilient: polycyclic - they go through many rock cycles, oldest rock in canada - 4 billion years old. Rocks get caught up in plate tectonics. Low grade to high grade: all kept going by uranium decay in the mantle which creates heat and keep mantle convention going, magnetic fields. Intrusive: don"t see the light of day unless weathered and exposed, very slowly, coarse grains, crystals grow. A rock is a naturally formed, consolidated material composed of grains of one or more minerals. A mineral is a naturally occurring, inorganic, crystalline solid that has a specific chemical composition. Minerals (chapter 5) - 4, 500 different types! The most important group are silicate minerals containing silicon and oxygen and accounts for.
