Geologic Timeline Flashcards
a method is used to arrange geological
events, and the rocks they leave behind, in a sequence.
Relative Dating
It is used to measure radioactive decay.
Absolute Dating
the matching process which has been an
important process in constructing geological timescales.
Correlation
small chunks of time that was organized into a timescale which describes the history of the Earth.
Epochs
a principle that states that natural geologic
processes were uniform in frequency and magnitude throughout time
Uniformitarianism
Primary basis to be an Index fossil,
has to contain distinct
morphological characteristics for easier identification
If you’re looking for places with the greatest sedimentary accumulation,
you should look on the shallower parts of the oceans as there is no denudation of loss of rock thickness
If scientists need to determine geologic time using fossils
they need to find sedimentary rocks as can take shape when the tiny, weathered fragments of stones are compacted and cemented together.
Isotopes decay
at a constant rate in radiometric dating.
The major reason for division or bedding plane in stratification
temporary ceasing of deposition occurs
The reason why scientists need to use different elements in determining the exact age range
is because each radioactive
element decays at a constant rate, which is unique to that
element.