Geology 101GLY 101 1st Edition Lecture 1Geology 101- Greek word geo (Earth) & logos (discourse)- the science that pursues an understanding of planet Earth- Geology 2 broad areas: 1) physical geology 2) Historical geology- physical geology- examines the materials composing earth and seeks to understand the processes that operate beneath and upon its’ surface.- historical geology- understand the origin of earth and its development throughout time- United Nations, 2008, more people lived in cities than rural areas.- Catastrophism- catastrophist believe that earth’s landscapes shaped primarily by greatcatastrophes.- James Hutton published Theory of the Earth in 1795- uniformitarianism- states the physical, chemical, and biological laws that operate todayhave also operated in the geologic past.- To understand past rocks we must understand present rocks, “the present is the key tothe past”- Hypothesis- a tentative explanation- Theory- well-tested and widely accepted view that the scientific community agrees best explains certain observable facts.- Scientific method- researchers gather facts through observations and formulate scientific hypotheses and theories.- continental drift-the idea that continents moved about the face the the planetThese 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.- physical environment divided into 3 parts/spheres: 1) water or hydrosphere, 2) gaseous envelope or atmosphere, 3) solid earth or geosphere- biosphere- totality of all plant and animal life on our planet; can be included in the other parts/spheres: hydrosphere, atmosphere, geosphere, biosphere. - Hydrosphere is a dynamic mass of water that is continually
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