Geology Flashcards

1
Q

Igneous

A

A rock that comes from a volcano

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2
Q

Magma

A

Liquid rock that is beneath the earths surface

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3
Q

Lava

A

Liquid rock this is on the earths surface

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4
Q

Extrusive

A

Igneous Rock that forms on the earths surface

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5
Q

Intrusive

A

Igneous Rock that is formed inside a volcano

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6
Q

Mineral

A

A solid Naturally occurring substance

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7
Q

Lithosphere

A

Rigid outer part of the earth

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8
Q

Athenosphere

A

Upper layer of the earths mantle

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9
Q

Crystal

A

A clear/ Transparent Mineral That resembles ice or glass

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10
Q

Sedimentary Rock

A

Rocks formed from sediments deposited by water

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11
Q

Erosion

A

removal of soil and rock by natural elements

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12
Q

Flood Plains

A

Flat Open land where river sediments a deposited in floods

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13
Q

Glaciers

A

Large Bodies of that move down slopes and push boulder/ rocks

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14
Q

moraines

A

deposit left by movement of a glacier

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15
Q

Sandstone

A

A sedimentary rock made from sand

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16
Q

Mudstone

A

Fine grained Sedimentary frock without layering

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17
Q

Shale

A

A sedimentary frock made from clay

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18
Q

Siltstone

A

A sedimentary rock with grain size between sandstone and mudstone

19
Q

conglomerate

A

Sedimentary frock with different size particles cemented together

20
Q

Lime stone

A

A sedimentary rock formed by the remains of sea organisms

21
Q

Coal

A

A sedimentary rock formed by the remains of dead plants and animals

22
Q

Rock salt

A

common salt occurring naturally as a mineral

23
Q

Metamorphic Rocks

A

Rocks that go through a change

24
Q

Metamorphism

A

The process of a rock going through a change

25
mineral ores
rocks mined to obtain a metal or other chemical within them
26
mining
extraction of natural resources from the Earth
27
environmental impact statement
study of the possible effects of a planned project on the environment
28
rehabilitated
restored to its previous condition
29
overburden
waste rock removed from below the topsoil. This rock is replaced when the area is restored.
30
open-cut mining
mining that scours out soil and rocks on the surface of the land
31
underground mining
mining that uses shafts and tunnels to remove rock from deep below the surface
32
Stone age
he first known period of prehistoric human culture characterized by the use of stone tools
33
Alloy
a metal made by combining two or more metallic elements, especially to give greater strength or resistance to corrosion.
34
Flint
a hard grey rock consisting of nearly pure silica (chert), occurring chiefly as nodules in chalk.
35
percussion flaking
the shaping of a stone implement by striking or chipping off flakes with another stone or a piece of wood, bone, or antler
36
fossil
any remains, impression, or trace of an animal or plant of a former geological age; evidence of life in the past
37
folding
the buckling of rocks. It is caused when rocks are under pressure from both sides.
38
paleontologists
a scientist who studies fossils
39
relative age
the age of a rock compared with the age of another rock
40
carnivores
animal that eats other animals
41
scavengers
animals that eat dead plant and animal material
42
mould
cavity in a rock that shows the shape of the hard parts of an organism; types of fungi found growing on the surface of foods
43
trace fossils
fossils that provide evidence, such as footprints, that an organism was present when the rock was formed
44
extinct
describes volcanoes that are no longer active. Extinct volcanoes have not erupted for thousands of years and show no sign of future eruption.