ES224 Self-assessment Test

The questions in this test are similar to those in the sample paper for the end-of-semester assessment. However, the actual assessment will have few multiple-choice questions, and many single-word answer questions compared with this version.

If you have difficulties with any of the answers, don't hesitate to see or email me.

In each section, either choose answers with the radio buttons, or from the pulldown menus, then press the "submit" button to have the test scored and to get some feedback. At this time there is no record of your performance retained on the system.

 

Questions about rock and mineral properties will usually be one-word-answer style in the final paper:

First part

Question:

What unusual physical property does the rock material possess?

 Density Magnetism Electrical Conductivity Elasticity Radioactivity
1 pyrite
2 chert
3 muscovite
4 komatiite
5 basalt
 

 

 

Second Part

The choices in some of these menus may sometimes seem strange or unlikely—but most of them have been served up as answers in exams, so don't scoff too loudly!

 

1
 Name the most important magnetic mineral?  
2
 Name one other mineral with important magnetic properties.  
3
 The Earth's main field is generated in the ...?  
4
 At the South Magnetic Pole, a suspended magnet would ... ?  
5
 Paleomagnetism depends on recognising magnetization "frozen in" to a rock at some time. This is ..   magnetization?
6
 Compared with background, most discrete magnetic anomalies have a positive and a negative component. Why?  
 
 

Third part

 

1
 The negative part of a magnetic anomaly is usually observed on which side of the whole anomaly?  
2
 Plug-like geological features may not show negative anomalies if they are...  
3
 If a feature in a magnetic image is described as "thin", it is "thin" compared with what?  
4
 The sample spacing along line for a magnetic survey is decided by what?  
5
 What is the effect of metamorphism on magnetic susceptibility?  
6
 What is the effect of jointing on magnetic susceptibility?  
 
 

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