Assignment 1
docx
keyboard_arrow_up
School
El Paso Community College *
*We aren’t endorsed by this school
Course
1301
Subject
Geology
Date
Dec 6, 2023
Type
docx
Pages
2
Uploaded by jessikadenn28
Assignment 1- Introduction
1-
What is the relationship of the dense oceanic crust that is produced at a divergent plate
boundary to the convergence or collision of an oceanic plate and a continental plate, such
as the western margin of South America.
- Tectonics has significant consequences for geology due to the relationship between a dense
oceanic crust that forms at divergent plate boundaries and the collision or convergence of
oceanic plates with continental plates, such as the western margin of South America. Oceanic
plates subduct under continental plates, causing deep-sea trenches, volcanic arcs, and
mountain ranges to form. At the point where the dense oceanic crust meets the divergent
plate boundary, cold water gushes inside the divergent plate boundary and makes the water
warm and then extremely hot. The expansive temperature causes it to come out inside the
surface of the earth and become a volcano at a certain point in time.
2-
Humans are part of the earth system list three examples of how you in particular
influence one or more of earth major spheres.
-Atmosphere: Humans significantly impact the Earth’s atmosphere through activities
such industrial, and agricultural emissions release pollutants that degrade air quality,
leading to smog and respiratory problems in populated areas.
-Hydrosphere: Humans have a substantial influence on the hydrosphere because primarily
through the alteration of natural water cycles. Such as: deforestation and urbanization can
disrupt the natural flow of water.
-Lithosphere: Humans significantly impact the Earth’s lithosphere through activities such
mining, quarrying, and urban development.
3-
Examine Figure 1.13 in your textbook, answer the following question:
a.
where is most of earth’s fresh water stored?
-Most of the Earth's fresh water is stored in glaciers, groundwater, and ice caps, which make up
the cryosphere.
b.
Where is most of Earth’s liquid fresh water found?
-Earth's fresh water is locked up in glaciers and ice caps.
Freshwater found underground and in streams.
4-
Compare and contrast continental and ocean basins.
Compare:
Continental & Ocean basins:
- Both continental and ocean basins are geological depressions or low-lying areas on the Earth’s
surface.
- Both continental and ocean basins support diverse ecosystems, with unique flora and fauna
adapted to their respective environments.
Contrast:
Continental basin:
- Flat features that average 0.8 kilometers (0.5 miles) in elevation.
- Granitic rocks.
- Composed of continental crust, which is thicker and less dense than oceanic crust.
Ocean basin:
- Average 3.8 kilometers (2.8 miles) below sea level
- Basaltic rocks
- Composed of oceanic crust, which is thinner and denser than continental crust.
5-
What is the difference between shield and stable platforms?
- Shield and stable platforms are both stable continental crust regions, but shields are older, and
more tectonically active. The differences are shields are expansive, flat regions composed largely
of deformed igneous and metamorphic rock (crystalline rock). Stable platforms are deformed
rocks covered by sedimentary rocks. These rocks are often relatively unaltered by tectonic forces
and are rich in sedimentary layers.
Your preview ends here
Eager to read complete document? Join bartleby learn and gain access to the full version
- Access to all documents
- Unlimited textbook solutions
- 24/7 expert homework help