Geophysics: Mid Term Quiz

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| By Anna

Anna

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Quizzes Created: 2 | Total Attempts: 920

Questions: 10 | Attempts: 849 | Updated: Mar 21, 2023

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Questions and Answers

1.

Branch of geophysics which studies the materials that build the interior of any planet is known as __________ physics.
- A.
  
  Mineral
- B.
  
  Geo-dynamics
- C.
  
  Seismology
- D.
  
  Bio-geophysics
Correct Answer
A. Mineral

Explanation
The branch of geophysics that studies the materials that make up the interior of any planet is known as mineral physics. This field focuses on understanding the physical and chemical properties of minerals and how they behave under extreme conditions of pressure and temperature. By studying minerals, scientists can gain insights into the composition and structure of planetary interiors, as well as processes such as mantle convection and plate tectonics.

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2.

Branch of geophysics that deals with the study of heat flow, rock deformation, various modes of transport deformation and lithosphere dynamics is known as ________.
- A.
  
  Geophysical Fluid Dynamics
- B.
  
  Geomagnetism
- C.
  
  Geo-dynamics
- D.
  
  Paleo-magnetism
Correct Answer
C. Geo-dynamics

Explanation
Geo-dynamics is the branch of geophysics that deals with the study of heat flow, rock deformation, various modes of transport deformation, and lithosphere dynamics. It focuses on understanding the processes and forces that shape the Earth's crust and how they contribute to the movement and deformation of rocks and other geological features. This field of study helps in understanding the formation of mountains, earthquakes, plate tectonics, and other geological phenomena.

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3.

A book named “The examination of iron ore deposits by magnetic methods” was written by ______ and published in _______.
- A.
  
  Von Warde, 1843
- B.
  
  Robert Thalen, 1879
- C.
  
  Thalen Tiberg, 1923
- D.
  
  None of these
Correct Answer
B. Robert Thalen, 1879
4.

The first magnetometer "Thalen-Tiberg" was manufactured in:
- A.
  
  Japan
- B.
  
  Italy
- C.
  
  Sweden
- D.
  
  USA
Correct Answer
C. Sweden

Explanation
The correct answer is Sweden. The Thalen-Tiberg magnetometer was the first of its kind and it was manufactured in Sweden.

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5.

Geophysical studies are:
- A.
  
  Qualitative
- B.
  
  Quantitative
- C.
  
  Both
- D.
  
  None of above
Correct Answer
B. Quantitative

Explanation
Geophysical studies involve the measurement and analysis of physical properties and processes of the Earth. These studies aim to quantify various geophysical phenomena such as seismic activity, magnetic fields, gravity, and electrical conductivity. By utilizing mathematical models and numerical data, geophysicists are able to provide quantitative measurements and interpretations of these phenomena. Therefore, the correct answer is "Quantitative".

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6.

According to magnetic susceptibility of rocks and minerals, which of the following statement is not true?
- A.
  
  Limestone 10*106
- B.
  
  Shale 60*106
- C.
  
  Granite 200*106
- D.
  
  Quartzite 350*106
Correct Answer
B. Shale 60*106

Explanation
The magnetic susceptibility of rocks and minerals refers to their ability to be magnetized in the presence of a magnetic field. Higher values of magnetic susceptibility indicate a stronger response to magnetism. In this case, the answer "Shale 60*106" is not true because it suggests that shale has a higher magnetic susceptibility than granite and quartzite, which is inconsistent with the general trend. Typically, granite and quartzite have higher magnetic susceptibilities than shale.

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7.

Geological studies are ________ and ________.

Correct Answer
qualitative
descriptive

Explanation
Geological studies are qualitative and descriptive because they involve the analysis and interpretation of data related to the characteristics and behavior of rocks, minerals, and other geological features. Qualitative studies focus on the qualities and properties of geological materials, while descriptive studies involve the observation and documentation of their physical attributes and processes. Both approaches are essential in understanding and explaining the complex nature of geological phenomena.

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8.

The geophysical techniques are not used in the exploration of a diamond.
- A.
  
  True
- B.
  
  False
Correct Answer
B. False

Explanation
Geophysical techniques are commonly used in the exploration of diamonds. These techniques involve the use of various instruments to measure physical properties of the earth, such as magnetic fields, electrical conductivity, and seismic waves. By analyzing these measurements, geophysicists can identify potential areas where diamonds may be present. Therefore, the correct answer is false, as geophysical techniques are indeed used in diamond exploration.

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9.

Weathering and erosion of metamorphic rocks causes sediments to form.
- A.
  
  True
- B.
  
  False
Correct Answer
A. True

Explanation
Weathering and erosion are natural processes that break down rocks into smaller particles, including metamorphic rocks. Over time, these particles accumulate and form sediments. Therefore, it is true that weathering and erosion of metamorphic rocks cause sediments to form.

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Current Version
Mar 21, 2023

Quiz Edited by
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Mar 19, 2020

Quiz Created by
Anna

Geophysics: Mid Term Quiz

Branch of geophysics which studies the materials that build the interior of any planet is known as __________ physics.

Branch of geophysics that deals with the study of heat flow, rock deformation, various modes of transport deformation and lithosphere dynamics is known as ________.

A book named “The examination of iron ore deposits by magnetic methods” was written by and published in _.

The first magnetometer "Thalen-Tiberg" was manufactured in:

Geophysical studies are:

According to magnetic susceptibility of rocks and minerals, which of the following statement is not true?

Geological studies are and .

The geophysical techniques are not used in the exploration of a diamond.

Weathering and erosion of metamorphic rocks causes sediments to form.

Geophysics: Mid Term Quiz

Branch of geophysics which studies the materials that build the interior of any planet is known as __________ physics.

Branch of geophysics that deals with the study of heat flow, rock deformation, various modes of transport deformation and lithosphere dynamics is known as ________.

A book named “The examination of iron ore deposits by magnetic methods” was written by ______ and published in _______.

The first magnetometer "Thalen-Tiberg" was manufactured in:

Geophysical studies are:

According to magnetic susceptibility of rocks and minerals, which of the following statement is not true?

Geological studies are ________ and ________.

The geophysical techniques are not used in the exploration of a diamond.

Weathering and erosion of metamorphic rocks causes sediments to form.

A book named “The examination of iron ore deposits by magnetic methods” was written by and published in _.

Geological studies are and .