Earth Materials Flashcards

1
Q

The hierarchy of solid matter on Earth in ascending order

A

Atoms → Elements → Compounds → Minerals → Rocks

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2
Q

These elements have a tendency to concentrate in the gaseous atmosphere of a planet or celestial body. Examples of these elements include hydrogen, helium, neon, argon, and xenon.

A

Atmophile

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3
Q

These elements have a strong affinity for silicate minerals and tend to concentrate in the solid, rocky parts of a planet, such as the crust and mantle. Examples of these elements include silicon, aluminum, potassium, calcium, sodium, and magnesium.

A

Lithophile

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4
Q

These elements have a strong affinity for sulfur and tend to concentrate in sulfide minerals. Examples of these elements include copper, zinc, lead, and molybdenum.

A

Chalcophile

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5
Q

These elements have a strong affinity for iron and tend to concentrate in the metallic core of a planet. Examples of these elements include iron, nickel, cobalt, platinum, and gold.

A

Siderophile

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6
Q

what makes up the atomic weight of an atom?

A

The sum of all the protons and neutrons present in the atom

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7
Q

consists of elements that combine in a specific ratio.

A

Chemical compounds

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8
Q

The smallest quantity of a compound is called

A

molecule

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9
Q

What holds molecules together?

A

Chemical bonds

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10
Q

electrons are transferred between atoms forming attracting ions

A

Ionic Bonding

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11
Q

electrons are shared between atoms

A

Covalent Bonding

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12
Q

electrons drift around from atom to atom

A

Metallic Bonding

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13
Q

sheets of covalently bonded atoms held together by
weak electrostatic forces

A

Van der Waal bonds

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14
Q

Definition of a mineral

A

✓ naturally occurring
✓ inorganic
✓ definite chemical composition
✓ ordered crystalline structure
✓ homogenous solid

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15
Q

What element is the most abundant in the Earth’s crust?

A

Oxygen

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16
Q

What is the percentage of iron in the Earth’s crust?

17
Q

minerals with the same chemical composition but different crystal structures

A

polymorphs

18
Q

Minerals taking crystal form of another, pre-existing mineral

A

Pseudomorphs

19
Q

A solid aggregate (mixture) of minerals

20
Q

It is a measure of the resistance of a mineral to scratching
and abrasion, and is usually measured in comparison to
other minerals of known hardness

21
Q

Three types of diaphaneity

A

Transparent
Translucent
Opaque

22
Q

What is the optimal water to HCL ratio used for the field?

23
Q

The difference between pyroelectricity and peizoelectricity?

A

Pyroelectricity is caused by temperature, while

24
Q

Why Does Quartz Have So Many Varieties?

A

due to different environments / impurities while the quartz crystal is forming

25
the in-situ physical disintegration and chemical breakdown of rocks
Weathering
26
when deep rocks are exposed, the removal of overburden causes sub-horizontal cracks to form causing the rock to easily peel away like layers of an onion
exfoliation joint
27
water fills cracks, freezes, expands, and forces cracks to open causing them to grow; can lift large blocks
Frost wedging
28
mechanical weathering processes create an apron or pile of debris at the margins of slopes called
talus / talus deposits
29
refers to the degree of similarity in particle size in a sedimentary rock
sorting
30
The first areas to be weathered in a cubic rock are the
corners