s1 Flashcards

(36 cards)

1
Q

Aggregates of one or more minerals

A

Rocks

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2
Q

Naturally occurring, inorganic solids with a definite chemical composition and crystalline structure.

A

Minerals

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3
Q

Large, visible crystals. Indicates slow cooling (intrusive).

A

Coarse-Grained Igneous Rock

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4
Q

Small, invisible crystals. Indicates rapid cooling (extrusive)

A

Fine-grained Igneous Rock

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5
Q

No crystals, very smooth. Indicates very rapid cooling (extrusive)

A

Glassy Igneous Rock

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6
Q

High in silica, and light-colored minerals (e.g., granite, rhyolite).

A

Felsic

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7
Q

Very low in silica, very high in magnesium and iron (e.g., peridotite).

A

Ultramafic

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8
Q

Over time, sediments are compacted and cemented together to form solid rock.

A

Compaction and Cementation

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9
Q

Formed from the precipitation of minerals from water

A

Chemical Sedimentary Rocks

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10
Q

Applies directed stress to the rock, leading to deformation and reorientation of minerals

A

Formation Process of Metamorphic Rocks - Pressure

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11
Q

Facilitate the exchange of ions, promoting new mineral growth and altering the rock’s composition.

A

Formation Process of Metamorphic Rocks - Chemically Active Fluids

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12
Q

Occurs when rocks are heated by nearby magma or lava.

Typically affects a small area surrounding the heat source.

Results in non-foliated rocks due to uniform pressure from heat.

A

Contact Metamorphism

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13
Q

Occurs over large areas due to tectonic forces that produce high pressure and temperature

Common in mountain-building regions.

Results in foliated rocks due to directed pressure from tectonic forces.

A

Regional Metamorphism

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14
Q

A continuous process of rock formation, alteration, and recycling through geological processes.

A

The Rock Cycle

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15
Q
  1. Weathering and Erosion: Igneous rocks are broken down into sediments.
  2. Transportation and Deposition: Sediments are transported and deposited in layers.
  3. Compaction and Cementation: Sediments are compacted and cemented to form sedimentary rocks.
A

From Igneous to Sedimentary

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16
Q

1 = diamond

A

MOHS SCALE OF HARDNESS

17
Q

Metamorphic processes alter existing minerals into new minerals under different conditions.

A

Formation of Minerals: Changes in Pressure and Temperature

18
Q

Low in silica, dark-colored minerals (e.g., basalt, gabbro).

19
Q

between felsic and mafic (e.g., andesite, diorite).

20
Q

Areas with extensive igneous activity, such as volcanic regions, can be geothermal energy sources, providing a renewable energy resources

A

Geothermal Energy

21
Q

Formed from the compaction and cementation of sediments, which are particles derived from the weathering and erosion of existing rocks.

A

Sedimentary Rocks

22
Q

Breakdown of rocks into smaller particles by physical, chemical, and biological processes.

23
Q

Movement of sediments by water, wind, ice, or gravity.

A

Erosion and Transport

24
Q

Accumulation of sediments in various environments (e.g., rivers, lakes, oceans).

25
Rocks Formed from mechanical weathering debris.
Clastic Sedimentary
26
Formed from the accumulation of plant or animal debris.
Organic Sedimentary Rocks
27
Grain size (gravel, sand, silt, clay) determines the classification.
Clastic Sedimentary Rocks
28
Presence of organic material, such as plant fibers or shells
Organic Sedimentary Rocks
29
Formed from the alteration of existing rocks (igneous, sedimentary, or other metamorphic rocks) due to heat, pressure, and chemically active fluids.
Metamorphic Rocks
30
Increases the temperature of the rock, causing minerals to recrystallize without melting.
Formation Process of Metamorphic Rocks - HEAT
31
Formed under directed pressure, causing minerals to align in parallel layers or bands. TEXTURE: Exhibits a banded or layered appearance due to the alignment of minerals under directed pressure.
Foliated Metamorphic Rocks
32
Formed under uniform pressure or from contact metamorphism, resulting in rocks without a layered texture. TEXTURE: Lacks a banded or layered texture, typically formed under uniform pressure.
Non-Foliated Metamorphic Rocks
33
Naturally Occurring: Formed by natural geological processes. Inorganic: Not made by biological organisms Solid: Have a definite shape and volume. Definite Chemical Composition: Each mineral has a specific chemical formula. Crystalline Structure: Atoms are arranged in a systematic and repeating pattern\
Characteristics of Minerals
34
Color - The visible hue of the mineral, though not always a reliable identification property due to variations.
Physical Properties of Minerals
35
Contains silicon and oxygen, making up the majority of Earth's crust (e.g., quartz, mica, feldspar).
Silicate Minerals
36
Include carbonates (e.g., calcite), oxides (e.g., hematite), sulfates (e.g., gypsum), halides (e.g., halite), and native elements (e.g., gold).
non silicate