Geo-Sci review sheet - Test 1

Geo-Sci review sheet - Test 1 - ion pg.1 Lecture 2:...

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Unformatted text preview: ion pg.1 Lecture 2: Geological Time pg. 2 tal Drift pg. 6 loor Spreading pg. 8 on pg. 12 d Mantle Plumes pg. 16 g Law of Superposition or are they supporting it? I think that they are contradicting it. Due to effects of the weather Due to sea level rising Conversion of metrics: Kilometers Centimeters 1 Kilo = 100,000 Centimeters Kilometers Meters 1 Kilo = 1,000 Meters Meters Centimeters 1 Meter = 100 Centimeters Miles Kilometers 1 Kilo = .621 Miles Feet Meters 1 Meter = 3.28 Feet Involves subduction Geo-Science 105: Exam 1 Review Lecture 1: Introduction- Earths interior o Crust (5-40 km) Continental (50-100 km) Oceanic (5-8 km) o Mantle (2885 km) Lithosphere (10-150 km) Rigid Mantle Crust Asthenopshere Hot Plastic Mantle Soft Plastic Convecting slowly o Outer core (2270 km) o Inner core (1216 km)- Earth is thought of as having two dynamic systems o Interior Heat Engine (Primary) Forms: Ocean basins Mountain ranges Volcanoes o Lava eruptions o Explosive Eruptions 1 o Mudflows and Floods Earthquakes o Tectonic earthquakes o Volcanic earthquakes o Tsunamis Cause by non-weather conditions o Exterior Heat Engine (Secondary) Forms: Climate Storms o Hurricanes o Tornadoes Glaciers Rivers Erosion Cause by weather conditions Lecture 2: Geological Time- Scientific Revolution: A revolution that changes the way we think about science, the world, the universe or ourselves. o Examples: Copernican theory Newtons gravitational theory Geological time Understanding that the earth is very old Darwins theory of evolution Theory of the structure of the atom 2 Einsteins theory of relativity Theory of plate tectonics Earth has rigid outer plates and movement of plates cause - Geological time (the beginning) o Early western ideas on the age of the earth were based on reconstruction of biblical history. o Bishop Usher (17 th century) Calculated earth was formed at 9 am on October 29 th in 4004 BC 6,000 years old- James Hutton (18 TH Century) o First real geologist o Recognized earth was much older millions of years old o Principle of Uniformitarianism The geological processes that we see operating today are the same processes that operate in the past THE PAST IS THE KEY TO THE PRESENT- What geological evident convinced Hutton that the earth was many millions of years old? o Hu t tons Law of Superposition Sediments form by particles slowly sinking to the bottom of Lowest layers must be older than the upper layers Accumulation rates are less than a few millimeters each year 8 meters thick = 8,000 years old o 1 millimeter/year o 1000 millimeters = 1 meter o (1000)(8) = 8,000 o Grand Canyon 3 Over 1 mile deep (2 km) Rocks at the bottom are predicted to by at least 2 million years Actuality: Rocks at the bottom of the Grand Canyon are close to 500 million years old...
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Geo-Sci review sheet - Test 1 - ion pg.1 Lecture 2:...

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