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WorksheetsGelogic Time Quiz #2
Total questions: 27
Worksheet time: 44mins
This is a surface where the rock has eroded away, producing a break, or gap, in the rock record.
unfonformity
inconsistancy
uniformity
correlation
This is when geologists match rocks and fossils from separate locations.
correlation
key beds
unconformity
uniformity
Select ALL options that describe a key bed:
Unique Strata (Iridium or Volcanic Ash)
Found in multiple locations in a large area
Found in one location or small area
Sedimentary or Metamorphic Strata similar to ones above or below it.
The ___________________________ is a record of Earth's history.
Geologic Time Scale
Geologic Time Record
Geographic Time Scale
Historical Record
An _____________ is a portion of time which is the largest unit and is made up of billions of years.
Era
Eon
Period
Epoch
The matching of rock outcrops or fossils exposed in one geographic region with those in another is __________________.
Cross Cutting Relationships
Correlation
Disconformity
Unconformity
fossils of widely distributed organisms that lived during only one short period→ index fossil
true
false
What does the unconformity at
line XY represent?
faulting has occurred
folding has occurred
a time gap in the rock record of the area
an area of contact metamorphism
a rock or sediment layer with distinctive characteristics that make it easily identifiable in correlation
fossil
index fossils
geology
key bed
a chart that divides Earth’s history into different time units based on changes in the rocks and fossils
geologic time scale
timeline
fossil record
relative age dating
When classifying time using the Geologic Time Scale which unit is the largest unit of time?
Period
Eon
Epoch
Era
What two methods are used to divide and classify the geological time scale?
Living organisms
rock strata or layers
DNA
fossils
Earth is thought to be formed ______ years ago?
200 thousand
3 million
4.6 billion
who knows
During this period Earth was flowing with lava, the core was unstable, and was the first Era of the Precambrian Eon.
Paleozoic
Hadean
Archean
Cenozoic
What two methods are used to divide and classify the geological time scale?
Living organisms
rock strata or layers
DNA
fossils
Put the following units of geological time in order from largest to smallest unit of time.
Epoch, Eon, Era, Period
Epoch, Period, Era, Eon
Eon, Era, Period, Epoch
Period, Eon, Period, Era
Which fossil is the youngest
1
2
3
4
Fossils provide evidence of __________.
how life and the environment has remained stable over time
how the climate and weather has remained stable over time
how life and the environmental conditions have changed over time
Dying out of many species on Earth within a short period of time
Petrified
catastrophism
uncomformity
mass extinction
What lettered rock layer is the youngest?
A
B
C
D
When the rock layers in the three outcrops are correlated, the oldest layer is the
shale layer in outcrop I
siltstone layer in outcrop II
limestone layer in outcrop III
conglomerate layer in outcrop III
Which fossil could be classified as an index fossil?
