unit 4 study guide Flashcards
what does it mean to use humility when we study different views Christians have about the details of how earth was formed
our understanding is limited
some things we will not see clearly until we get to heaven
what is no final conflict
when science and religion conflict either its a misunderstanding of conflict, or a mis interpretation of the scripture
how does sedimentary rock form
layers of sediment become deposited on top of one another over a long period of time
where does formation usually take place
underwater
strata
layers of sedimentary rock
2 reasons one layer of strata can be different from the next
all from different time periods
contain different fossils
where are the oldest layers
very bottom
how old are the oldest rocks
4.6 billion years ago
order of naming time periods
eons, eras, periods
what are index fossils
fossils that are unique to a specific layer. used to identify rock layer
catastrophism
major events can create strata, and other uncomformities quickly
uniformitarianism
slow buildup of sediments which became cemented together over long periods of time
proof from mt st helens of quick forming features
25 ft of strata in 3 hours
140 ft canyon formed in 1 day
what is an uncomformity
erosion within strata
what haooens when a radioactive icotope decays
gives off radiation and becomes unstable
