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Question
Why will an iron-rich olivine have a higher density than a magnesium-rich olivine?A) More magnesium is needed to equal the same atomic charge as iron.
B) Iron-rich olivine has smaller crystals, so more of them will fit into the same area.
C) Magnesium-rich olivine has more silicon, which is less dense.
D) Iron has a greater atomic mass than magnesium and therefore is heavier.
Answer
This answer is hidden. It contains 1 characters.
Related questions
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What kind of radioactive decay is present in this image?
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B) Faults, fractures are younger than the rocks they cut through.
C) Sedimentary layers/lava
D) The oldest is on the bottom, the youngest on top.
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F) Chunks of weathered rock are older than the rock they are contained in.
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A detrital sedimentary rock can be radiometrically dated because the clasts formed at the same time as the rock.
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In what era is the Jurassic period?
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B) Paleozoic
C) Mesozoic
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What does "-zoic" in the eras of the geologic time scale refer to?
A) Life
B) Water
C) Rock
D) Fossilization
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A) Mesozoic
B) Precambrian
C) Paleozoic
D) Cenozoic
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What is the effective maximum range for carbon-14 dating?
A) 100,000 years
B) 70,000 years
C) 10,000 years
D) 13,000 years
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What is the half-life of potassium-40?
A) 1.3 billion years
B) 704 million years
C) 14.1 billion years
D) 4.5 billion years
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You are an archaeologist researching artifacts left behind by Francisco Pizzaro's conquest of Peru in the 1530s. In order to confirm the authenticity of the leather artifacts, you are performing radiometric dating using an isotope pair that has a half-life of 250 years. In order for the artifacts to date back to the time of Pizzaro's conquest, approximately how much original radioactive isotope must be left in the artifacts?
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C) Putting events in order from first to last
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________ is the scientific study of fossils.
A) Quaternary geology
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Which of the following is a metamorphic facies?
A) Kaolinite
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B) Conglomerate
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What kind of metamorphism will occur if the environmental conditions are 400C and 5 kilobars?
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