Lesson 6 Sedimentary Rocks Flashcards
What are separate strata?
bedding planes
What are traces or remains of prehistoric life?
fossils
what clues are in sedimentary rocks?
clues of past environments
What are the most important inclusions?
fossils
What do sedimentary rocks form from?
sediment
What are the types of microcrystalline quartz?
chert
flint
jasper
agate
What o processes are in the lithification process?
compaction
cementation
What does precipitation through life processes contain?
a biochemical origin
What two processes are chemical rocks precipitated through?
physical processes
life processes
Study the chart for identification
!!!!!
What type of material is detrital rocks?
solid particles
What are the types of evaporites?
rock salt
gypsum
What is limestone primarily composed of?
calcite
What is the most abundant chemical rock/
limestone
What is lithification?
loose sediments are transformed into solid rock
What is reconstructed with sedimentary rocks?
earths history
Sedimentary rock is a source of what two minerals?
iron and aluminum
What is sediment?
weathered products
What rock is classified by particle size?
detrital
What do these rocks often contain?
fossils
How are shells or mineral crystals formed?
as water evaporates and minerals precipitate
What is the most abundant detrital rock?
shale
What percent out of all rock outcrops on the continents are sedimentary?
75%
What are the chief constituents of detrital rock?
clay minerals and quartz
What information do sedimentary rocks provide?
information about sediment transport
what is the most characteristic feature?
strata or beds
What are the types of coal?
lignite
bituminous
What can fossils be used for involving rocks and places?
matching rocks from different places
Rock _____and rock _____ are chemical rocks that form as water evaporates and triggers the deposition of chemical precipitates.
gypsum and salt
What are the two groups of sedimentary rocks?
Detrital
Chemical
What are the types of limestone?
coquina
chalk
travertine
What are the three feature of sedimentary rocks?
strata or beds
bedding planes
fossils
What are the common detrital rocks?
shale
sandstone
conglomerate
siltstone
How does sedimentary rocks serve as economic importance?
Coal
Petroleum and natural gas
What are some types of biological processes
shells or mineral crystals
What type of material are chemical rocks derived from?
material that as once in a solution and precipitates to form sediment
What can be used as a time indicator?
fossils
What are soluble materials produced largely by chemical weathering that are precipitated by either inorganic or organic processes?
Chemical sediments
Cementation occurs with the materials such as?
calcite
silica
iron oxide
How are sedimentary rocks produced?
lithification
What are microcrystalline quartz?
precipitated quartz
_______ sedimentary rocks contain a variety of mineral and rock fragments?
Detrital
What are the common chemical rocks?
limestone
microcrystalline quartz
evaporites
coal
What are materials that originate and are transported as solid particles derived from weathering?
Detrital sediments
What helps determine past environments?
fossils
