Chapter 5.6-5.8 Flashcards
What is the goal of sedimentology/stratigraphy?
to interpret conditions and processes that existed on the Earth’s surface and how those conditions changed through time
T/F Facies are unique to a particular environment
True
What is Facies Analysis?
Investigating the lithologic, chemical, and biological characteristics of sedimentary deposits to interpret the paleoenvironment
What is a facies association
The characteristics of an environment that are determined by a combination of processes that occur within it
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Define Walthers Law
If a rock is formed adjacent vertically, it is also formed adjacent laterally
What is a facies sequence?
a facies association in which the facies occur in a particular order
When naming a facies, is should be:
a) Descriptive
b) Adjectives to reflect conditions of formation
c) separates it from other facies in the succession
When can the facies name simply reflect that of the depo environment?
When it is different enough from the rest of the environment or serves to signify a portion of the formation.
T/F A depo envi is interpreted as the sum of its facies
True
The Creatacous period is technically a
geochronologic unit
The most common fossil used to defining golden spikes in the Phanerozoic era is
small marine animals
