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Rocks 101 > Sedimentary Rocks > Flashcards

Sedimentary Rocks Flashcards

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1
Q

Sedimentary rocks

A

pieces of sediment are cemented together

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2
Q

Sediments

A

sediments are in any body of water

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3
Q

3 types

A

Clastic
Chemical
Organic

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4
Q

Clastic

A

fragments of rocks glued together

cemented underwater

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5
Q

Examples of Clastic

A

Conglomerate
Breccia
Sandstone

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6
Q

Conglomerate

A

round pebbles/sand glued together

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7
Q

Breccia

A

sharp, jagged pebbles & gravel glued together

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8
Q

Sandstone

A

sand-sized particles glued together

quartz

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9
Q

Chemical

A

acid dissolves minerals

after evaporation the rest of the minerals form rocks

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10
Q

Examples of Chemical

A

Limestone
Rocksalt
Rock Gypsum

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11
Q

Limstone

A

fizzes with calcite

strong to acids

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12
Q

Rocksalt

A

Hailite

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13
Q

Rock Gypsum

A

Gypsum

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14
Q

Organic

A

living orgnisms

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15
Q

Organic forms

A

solid remains of living plants & animals

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16
Q

Examples of Organic

A

Coal
Coqunia
Fossiliferous Limestone

17
Q

Coal

A

from dead plants, trees and animals

18
Q

Coquina

A

small pieces of sea shells glued together

19
Q

Fossiliferous Limstone

A

has lots of fossils

a type of limstone

20
Q

Important Features

A 
Stratafiction
Fossils
Ripple Marks
Mud Cracks
Nodules & Concretions
Geodes
21
Q

Stratfiction

A

sediments are left at bottoms of lakes, river or oceans called strata

22
Q

Fossils

A

hard remains of plants and animals/past life

23
Q

Ripple Marks

A

marks caused by wind/waves on surface of sediments before turning into rocks

24
Q

Mud Cracks

A

dry clay cracking

25
Q

Nodules & Concretions

A

lumps of silica or calcite

layered

26
Q

Geodes

A

hollow spear of silica/calcite crystals

Rocks 101 (3 decks)

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