ERSC181 Week 1
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American Public University *
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Course
181
Subject
Geology
Date
Jan 9, 2024
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docx
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2
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ERSC181 Week 1 Which mineral group is composed of tetrahedrons?
Silicates
The tendency of a mineral to break along certain planes to make smooth surfaces is called what?
Cleavage
The elements of periodic table are arranged is a specific way. How are they arranged?
By atomic number
Put the following in order of their abundance, starting with the most abundant: carbon, silicon, oxygen, iron, and hydrogen.
Carbon, oxygen, hydrogen, iron, and silicon
Which type of bond would you expect to find in gold?
Metallic
The top two most abundant elements create which common mineral group?
Silicates
The lithosphere is made up of numerous minerals and elements. Which of the following is the most abundant element in the lithosphere?
Oxygen
These minerals readily dissolve in slightly acidic water?
Carbonates
Which of the following is considered to be composed of a mineral?
Coal
What building block of matter has either a positive or negative charge?
Ion
Which element comprises about 27% of the crust?
Silicon
Which two elements are the scarcest in the crust?
Iron and magnesium
The nucleus is composed of which two subatomic particles?
Protons and neutrons
Compasses are used by geologists _____.
to measure orientation of geological structures.
Geologists study all but which of the following?
Current life
Geology as a science encompasses many aspects. Which of the following would NOT be of interest to a
geologist?
the classification of stars and planets, including the Earth
Which of the following is the best definition of geology?
Geology is the study of how the Earth was made, its composition and structure. This includes natural forces acting on the Earth as well as how life has changed over time.
Which of the following is not an example of a possible hypotheses?
The earth is a sphere.
Geology is unique because geologists rely on information and data from:
The present and the past
Which type of fieldnotes is the recording of factual data?
Descriptive
What tool is used by geologists to measure orientation of geological structures, as they map in the field, to analyse (and document) the geometry of bedding planes, joints, and/or metamorphic foliations and lineations?
Compass
Which type of variable is manipulated or changed during an experiment?
Independent
Which type of fieldnotes depend on the observer's interpretation?
Reflective
Which type of model can reveal the most because of the potential to handle large amounts of data?
A computer model.
Which tool uses vector algebra to compute plane and lineation orientations from the accelerometer and magnetometer data?
A digital compass
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