Answers to Quiz on Volcanic Minerals

1. On a daily basis, most of us use the following metals mined, at least in part, from volcanic ore deposits:

e. all of the above



2. Which of these economic materials are found in kimberlite pipes:

d. diamonds



3. Which of these economic materials are formed by hydrothermal fluids at submarine volcanoes:

c. copper, lead, zinc



4. Which of these economic materials can be produced by deep weathering of basalt:

a. aluminum



5. Which of these economic materials are found in komatiite lava flows:

e. nickel



6. Porphyry deposits are found in:

b. the eroded plumbing systems of volcanoes



7. Diamonds form under the following conditions:

c. pressure 60,000 times greater than the surface and a temperature of about 1500 C



8. As a nest-egg for your retirement would it be best to have a kilogram of:

d. diamonds