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33 Cards in this Set
- Front
- Back
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The principle of cross cutting relationships applies to? |
A. Faults B. igneous intrusions C. Both A and B D. None of the Above |
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Lord Kelvin didn't factor in what source of heat when he determined his age of the earth? |
a. Conduction b. Convection c. Volcanoes d. Radioactivity |
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In an undisturbed sequence of rocks, the oldest rocks are __________. |
a. On the top b. On the bottom c. In the middle d. None of the above |
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A fault must be _____________ than the rock layers it cuts through. |
a. Older b. Younger c. the same age d. none of the above. |
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Which scientist determined that the age of the earth to be 20 million years old? |
Lord Kelvin |
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The age of the earth is estimated to be _____________. |
4.54 Billion Years Old |
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Under the assumption that counting back generations in the bible can be used to determine the age of the Earth, how old is the Earth? |
6,000 years old |
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Which scientist discovered radioactivity as a way of calculating the age of rocks? |
Arthur Holmes |
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A canyon must be _____________ that the rock layers it erodes. |
Younger |
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Which important scientific figure is given the title, "The Father of Geology?" |
James Hutton |
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Lord Kelvin didn't factor in what source of heat when he determined his age of the earth? |
Radioactivity |
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In an undisturbed sequence of rocks, the oldest rocks are __________. |
On the bottom |
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A fault must be _____________ than the rock layers it cuts through. |
younger |
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The earth is estimated to be the same age as ______________. |
The sun, meteorites, and the solar system |
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Which important scientific figure is given the title, "The Father of Geology?" |
James Hutton |
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A canyon must be _____________ that the rock layers it erodes. |
Younger |
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Which scientist discovered radioactivity as a way of calculating the age of rocks? |
Arthur Holmes |
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Under the assumption that counting back generations in the bible can be used to determine the age of the Earth, how old is the Earth? |
6,000 years |
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The age of the earth is estimated to be _____________. |
4.54 billion years old |
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Which scientist determined that the age of the earth to be 20 million years old? |
Lord Kelvin |
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Which of the following is not a radioactive isotope? a. Uranium-235 b. Potassium-40 c. Hydrogen-2 (Deuterium) d. Thorium-232 |
c. Hydrogen-2 (Deuterium) |
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Which of the following was the first era of the Phanerozoic (it means "old life")? a. Precambrian b. Paleozoic c. Mesozoic d. Cenozoic |
B. Paleozoic |
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Radioactivity is used to calculate _______________ ages. |
Absolute Ages |
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What type of radioactive decay results in a change in atomic mass? a. Alpha Decay b. Beta Decay c. Electron Capture d. Gamma Capture |
A. Alpha Decay |
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What type of radioactive decay does radiocarbon undergo? a. Alpha Decay b. Beta Decay c. Electron Capture d. Gamma Capture |
B. Beta Decay |
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Igneous or Metamorphic rocks are only involved in which type of unconformity? |
Non-conformity |
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We are currently in which geologic era? a. Precambrian b. Paleozoic c. Mesozoic d. Cenozoic |
D. Cenozoic |
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What is the maximum numberical age that can be calculated using radiocarbon dating? |
40,000 years |
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Which geologic time unit includes the largest amount of time? a. Phanerozoic b. Proterozoic c. Archean d. Hadean |
B-Proterozoic |
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Which is the first eon of geologic time? a. Phanerozoic b. Proterozoic c. Archean d. Hadean |
Hadean |
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What type of radioactive decay occurs when 65RB decays into 65SR? |
Beta Decay because the atomic number increased from 37 to 38 |
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What do we base the numerical age of the Earth on? |
Primitive Meteorites |
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What geologic time scale are we in right now? |
Phaneoroic Eon, Cenozoic Era, Quarternary Period, Holocone Epoch |
