Download Name Date

Name ______________________________________
Mr. Freeman
Date_________________
Regents Earth Science
Characteristics of Sedimentary Rocks
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2. ___________________________________________________________________________________
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Figure 11-2. Layers in a sedimentary rock. Layers may
result from changes in the type of sediment during the
period of deposition.
Identifying Sedimentary Rocks
Refer to the chart Scheme for Sedimentary Rock Identification in the Earth Science Reference Tables on page 7.
Sedimentary rocks are classified and identified on the basis of:
1. ________________________________________
2. ________________________________________
Monomineralic chemical sedimentary rocks, such as chemical limestone and dolostone are identified based on the
one __________________________________they contain.
Example: Rock gypsum is composed mostly of the mineral __________________________, and dolostone is
composed mostly of the mineral _____________________________.
The majority of sedimentary rocks are composed of solid sediments such as _____________________________
to _______________________________ that have been cemented and/or compacted together. These clastic
sedimentary rocks are most commonly identified according to __________________________________
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Example 1: What would you classify a rock composed mostly of solid sediments 0.01 cm in diameter?
ANSWER: ________________________________________
Example 2: What would you classify a rock composed mostly of solid sediments 0.0008 cm in diameter?
ANSWER: ________________________________________
PRACTICE REGENTS QUESTIONS ON SEDIMENTARY ROCKS
PRACTICE REGENTS QUESTIONS ON SEDIMENTARY ROCKS
13. What kind of rock is formed when rock
fragments are deposited and cemented together?
(1) igneous (2) metamorphic (3) plutonic
(4) sedimentary
14. According to the Earth Science Reference
Tables, sedimentary rocks formed by compaction
and cementation of land-derived sediments are
classified on the basis of (1) composition (2) type
of cement (3) particle size (4) rate of formation
15. According to the Earth Science Reference
Tables, compaction and cementation of pebblesized particles would form the sedimentary rock
known as (1) shale (2) conglomerate
(3) sandstone (4) siltstone
16. According to the Earth Science Reference
Tables, some sedimentary rocks form as tile
direct result of the (1) solidification of molten
magma (2) recrystallization of material
(3) melting of minerals (4) cementation of rock
fragments
17. Which process would form a sedimentary rock?
(1) cooling of molten magma within the earth's
crust (2) recrystallization of unmelted material
within the earth's crust (3) cooling of a lava flow
on the earth's surface (4) precipitation of
minerals as seawater evaporates
18. According to the Earth Science Reference Table"
dolostone is formed by the (1) local
metamorphism of marble (2) biological
deposition of skeletons and shells (3) chemical
replacement limestone (4) mechanical deposition of
silts
19. According to the Earth Science Reference Tables,
which is a sedimentary rock that forms as a result of
precipitation from seawater? (1) conglomerate
(2) gypsum (3) basalt (4) shale
20. According to the Earth Science Reference Tables,
which type of sedimentary rock contains the
greatest range of particle sizes? (1) conglomerate
(2) sandstone (3) shale (4) siltstone
21. Which property best describes a rock which has
formed from sediments? (1) crystalline structure (2)
distorted structure (3) banding or zoning of minerals
(4) fragmental particles arranged in layers
22. Which property is common to both sedimentary
rocks and sediments? (1) fragmental particles
(2) distortion of structure (3) crystal alignment.
(4) crystalline structure
23. According to the Earth Science Reference Tables,
which sedimentary rock could form as a result of
evaporation? (1) conglomerate (2) sandstone (3)
shale (4) limestone
24. A massive sedimentary rock layer composed of
uniformly small particles probably formed from the
(1) precipitation of material from seawater (2)
cooling of a lava flow' (3) cooling of magma (4)
cementation of glacial material
25. Large rock salt deposits in the Syracuse area
indicate that the area once had (1) large forests
(2) a range of volcanic mountains (3) many
terrestrial animals (4) a warm, shallow sea.