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8 Cards in this Set
- Front
- Back
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What are the 4 main rock types? |
Sandstone, limestone, shales and oozes |
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What are the 3 factors that environmental reconstruction is traditionally done from? |
Grain characteristics Rock structures Fossils |
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What are the other 2 methods that are used to date the earth? |
Palaeomagnetism Radioactive decay of unstable isotopes |
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List some of the characteristics of good dating fossils |
Abundant, good preservation potential, widespread, deposited in varying environments, extinct everywhere at once quickly, short duration |
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What are the 3 main recent and emerging methods used to date the earth? |
Chemicals Isotopes Biomarkers |
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Define consilience of induction |
Where an idea/theory has several pieces of evidence to support it, meaning that it is more likely to be correct |
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Describe how genetics can be used to study evolutionary relationships |
If the gene code is more similar, the organisms are more closely related |
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What is the Signor-Lipps effect? |
The apparent duration of a species, which tends to be shorter than the true duration of a species |
