Sedimentary Rocks Question Preview (ID: 56786)
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Which sedimentary rock would be formed by the compaction and cementation of particles 1.5 centimeters in diameter?
a) shale
b) sandstone
c) conglomerate
d) siltstone
The sediments are from
a) chemical limestone
b) conglomerate
c) granite
d) sandstone
Brachiopod fossils were found in a layer of limestone rock. In which type of environment did the limestone layer form?
a) shallow marine
b) tropical forest
c) coastal plain
d) interior grassland
Which statement best describes the formation of the rock containing this fossil?
a) The rock was formed by metamorphism of sedimentary rock deposited in a terrestrial environment during the Cretaceous Period.
b) The rock was formed by compaction and cementation of sediments deposited in a terrestrial environment during Triassic Period.
c) The rock was formed by the compaction and cementation of sediments deposited in a marine environment during Cambrian Period.
d) The rock was formed from the solidification of magma in a marine environment during the Triassic Period.
Which rock is sedimentary in origin and formed as a result of chemical processes?
a) granite
b) shale
c) breccia
d) dolostone
The rounded pebbles of this rock have been cemented together to form
a) granite, an igneous rock
b) conglomerate, a sedimentary rock
c) siltstone, a sedimentary rock
d) Weiss, a metamorphic rock
Dolostone is formed by the
a) local metamorphism of marble
b) biological deposition of skeletons and shells
c) chemical replacement of limestone
d) mechanical deposition of silts
Which characteristic determines whether a rock is classified as a shale, a siltstone, a sandstone, or a conglomerate?
a) the absolute age of the sediments within the rock
b) the mineral composition of the sediments within the rock
c) the particle size of the sediments within the rock
d) the density of the sediments within the rock
Which rock was most likely formed from pebble sized sediment deposited in shallow water at an ocean shoreline?
a) shale
b) basalt
c) siltstone
d) conglomerate
Which types of rock would most likely form from compaction and cementation of these sediments?
a) sandstone and limestone
b) shale and coal
c) breccia and rock salt
d) conglomerate and siltstone
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