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Geohazards And Earth Resources > Geopolitics 2 > Flashcards

Geopolitics 2 Flashcards

1
Q

Al average crustal abundance and concentration factor?

A

8%, 3-4x to make it viable

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2
Q

Porphyry copper

A

formed on volcanic arcs

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3
Q

Uses of copper

A

Power generation, building and construction (200kg Cu/house)

Transport (1.5km wiring/20kg)

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4
Q

Copper useful metal

A 
Cu + Zn = brass
Cu + Sn = bronze
High elec/heat conduct.
corrosion resistant
toxicity e.g. e col/stainless steel
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5
Q

Porphyry copper

A

Abundant large phenocrysts
Finer grains - looks like granite
Itermediate to acidic magmas, shallow intrusions
Destructive boundaries e.g Chile

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Geohazards And Earth Resources (20 decks)

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