Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
8 Cards in this Set
- Front
- Back
|
what are the economically important metals?
|
aluminum 8%
iron 5.8 % copper .0058% gold |
|
|
What kind of plate boundaries do Copper, Molybdenum, mercury and gold deposits come from ?
|
convergent plate boudaries.
- this explains th e coincidence between ore deposits and mountains. |
|
|
What are the types of Ore Deposits?
|
- Igneous
- Hydrothermal - sedimentary - weathering |
|
|
what are igneous ore deposits ?
|
this is when the cooling of hot magma settles at the bottom of magma chambers.
|
|
|
where do you extract diamonds from?
|
kimberlite pipe
|
|
|
what is a secondary enrichment?
|
this is when there is an alluminum ore deposit beneath the water table. then when it rains the allunimum seeps out.
|
|
|
What is a RESOURCE?
|
The entire amount of material known to exist
|
|
|
What is a RESERVE?
|
mineral deposits that can be economically recovered ( mined with existing technologies.
|
