Lab 1 Assignment geo

.docx

School

Coastal Carolina Community College *

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Course

111

Subject

Geology

Date

Feb 20, 2024

Type

docx

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Uploaded by cartercc88

Lab #1 Assignment Due Date: 11:59p Sunday, January 28. Use this document to work out the activities/exercises and record your answers for quick reference while taking the ‘Quiz’. Record your answers via the Lab #1 Quiz in Moodle. *Important Note: Don’t wait until the last minute to attempt these lab exercises. If you have questions, email me sooner rather than later. Late submissions will not be accepted unless you have coordinated an extension with me before the due date of January 28. 1

Introduction to Geology The Geologic Time Scale divides the entirety of Earth’s 4.6-billion-year history into Eons, Eras, Periods, and Epochs. Take a look at Figure 1.6 on page 8 of our textbook. The bottom of the Geologic Time Scale takes us back in time to Earth’s beginnings, while the top represents present day. The numbers that lie on the Period boundaries are in millions of years. As an example, the Permian Period ranged from 298,900,000 years ago (289.9 million years ago) until 252,200,000 years ago (252.2 million years ago). Referring to this same figure, see if you can identify the Eon, Era, Period and Epoch we currently live in. Quiz Question 1 (4 pts) : What is the Eon , Era , Period , and Epoch we currently live in? Eon- longest time unit in the geological time scale, measured in billions of years Era- a subdivision of an eon Period- A subdivision of a geological time that is longer than an epoch, but shorter than an era Epoch- a subdivision of geologic time that is longer than an age but shorter than a period We currently live in Holocene Epoch in the Cenozoic Era Geologists view Earth as a system , and the Earth system as the interplay between open systems or “spheres” in the environment. Using the information from section 1.4 of our textbook as your guide, name the spheres of the Earth system. Quiz Question 2 (4 pts) : The spheres of the Earth system are _____ , _____ , _____ , and _____. Lithosphere, hydrosphere, biosphere, and atmosphere 2

Plate Tectonics / Seafloor Spreading Complete one concept sketch of a plate tectonic boundary from the list given below. Make sure it is neat, legible, and colorful! Color helps to define what you are looking at. Labels must be well written, clear, and detailed. Labels should explain what is happening at all locations in the sketch. Here is an example of a well-done sketch: Types of plate tectonic boundaries: 1. Divergent boundary at a mid-ocean ridge. 2. Divergent boundary when a continent splits apart. ( You would need to show the stages here in a series of sketches. ) 3. Convergent boundary between a continental and an oceanic plate. 4. Convergent boundary between two continental plates. 5. Convergent boundary between two oceanic plates. 6. Transform boundary on a continent. Here's what you will need to do: 1. Read Chapter 2 carefully, paying special attention to the figures of the plate boundaries and the descriptions of what happens at each boundary type. 3

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