exam 1 study guide

exam 1 study guide - P relude #1: Figure P.5 (relative...

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Prelude #1: • Figure P.5 (relative order of Eons and Eras, and their names) Eons Eras Million years ago Phanerozoic Cenozoic Mesozoic Paleozoic Proterozoic Archean Hadean 1. Scientific method: a series of experimental steps that attempts to answer a question or solve a problem 2. Theory: a set of hypotheses that explain the same phenomenon A hypothesis that has been tested may was A hypothesis that has not been falsified Unifying theory of geology: Plate tectonics Plate tectonics: changes to Earth's surface over time Mountain building Continental drift volcanoes Earthquakes Evolution Theory: not only from the perspective of biology, but in the sense that Earth's systems are dynamic and have drastically changed over time
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Another unifying theory of geology: Deep Time: the Earth is 4.6 billion ears old. Its history is divided into parts 3. Hypothesis 4. Geology/geologist: the scientific study of Earth (the inorganic aspects of the earth) Chapter#1 • Approximate age of the universe: 4.5 billion years 5. Big bang: a cataclysmic explosion that scientists suggest represents the formation of the Universe; before this event, all matter and all energy were packed into one volume less point 6. ): separate into groups based on diffeences 7. Planet: a large, spherical solid object orbiting a star, and it may itself travel with a moon or many moons (an object locked in orbit around a planet; all but two planets have them) 8. Planetesimals: (an irregular shaped proto- earth develops and the interior heats up making the infant plant soft) tiny, solid pieces of rock and metal that collect in a planetary nebula and eventually accumulate to form a planet (greater than 1KM diameter)
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9. Terrestrial plants: four planets closest to the Sun (Mercury, Venus, Earth and Mars); the innner planets (Earth- like planets)- they all consist of a shell of rock surrounding a core of iron alloy, as does the Earth. 10. Universe: commonly defined as the totality of everything that exists,[1] including all physical matter and energy, the planets, stars, galaxies, and the contents of intergalactic space Chapter#13 11. Archean Eon: (3.8 - 2.5 billion years ago) Origins of lif in the form of cyanobacteria (blue-green algae) Formation of the cores f the modern continents (i.e., Craton) 4 billion years ago Ophiolites from SW Greenland These are remnants of rock formations formed at the bottom of oceans 12. Banded iron formation (BIF): iron- rich sedimentary layers consisting of alternating gray bends of idon oxide and red beds of iron- rich cert 13. Cambrian explosion: the remarkable diversification of life, indicated by the dossil record, that occurred at the beginning of the Cambrian 14. Craton (middle of the crust is called this) & Cratonic (really old piece of the continental crust and it forms the interior of the crust)(continental) platform 15. Ediacaran fauna: Ediacaran Fauna (2.1 billion years ago, west Africa)- multi-
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exam 1 study guide - P relude #1: Figure P.5 (relative...

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