GEO 102 Lecture 10Outline of Last Lecture I. How the earth works Outline of Current Lecture II. Rock TypesIII. IgneousIV. MetamorphicV. SedimentaryCurrent LectureRock Types► Igneous-Extrusive-Intrusive► Metamorphic-Differing grades -Differing stress► Sedimentary-Clastic-Chemical-When two oceanic plates meet the older and the colder plate sinks-younger rock is more buoyant-When two continental plates meet nothing sinks. Mountains form.These notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.-The passive margin is the back part of the plate.-most extrusive igneous rocks form on divergent boundaries.-Water: evaporates, plants use it, percolates down to become groundwater, flows to the river and down to the
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