« previous next »

Author Question: When considering hydrothermal deposits, vein- or fissure-filling deposits of metallic ores such as ... (Read 56 times)

karen

  • Hero Member
  • *****
  • Posts: 537
on: Jul 15, 2018
When considering hydrothermal deposits, vein- or fissure-filling deposits of metallic ores such as gold or silver are common in ________.
 
  A) rocks of a contact-metamorphic zone that formed around a shallow granite pluton
  B) pyroclastic materials erupted from a stratovolcano
  C) impact structures from meteorites
  D) rocks that form in high-pressure subduction zones

Question 2

The mineral bauxite is refined to produce ________ for economic use.
 
  A) iron
  B) aluminum
  C) copper
  D) gold


annierak

  • Sr. Member
  • ****
  • Posts: 340
Reply #1 on: Jul 15, 2018
Answer to Question 1

Answer: A

Answer to Question 2

Answer: B


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Colchicine is a highly poisonous alkaloid originally extracted from a type of saffron plant that is used mainly to treat gout.

Did you know?

The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.

Did you know?

More than one-third of adult Americans are obese. Diseases that kill the largest number of people annually, such as heart disease, cancer, diabetes, stroke, and hypertension, can be attributed to diet.

Did you know?

You should not take more than 1,000 mg of vitamin E per day. Doses above this amount increase the risk of bleeding problems that can lead to a stroke.

Did you know?

Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.

Ventilation of the mammalian lung by negative pressure filling. Ventilation of the mammalian lung by negative pressure filling.
A worn spark plug showing fuel and/or oil deposits. A worn spark plug showing fuel and/or oil deposits.
Details of a gyrus, sulcus, and fissure Details of a gyrus, sulcus, and fissure
What is the discounted value of deposits of $150.00 made at the end of each month for fourteen ... What is the discounted value of deposits of $150.00 made at the end of each month for fourteen ...
Typical vein patterns in eudicot and monocot leaves Typical vein patterns in eudicot and monocot leaves
A Hydrothermal Vent on the Seafloor A Hydrothermal Vent on the Seafloor
Video: Glomerular filtrate rate: pressures that affect GFR, NFP & GFR and blood composition

For a complete list of videos, visit our video library