Earth science- 9

when igneous or metamorphic rock is eroded

the isotope that is produced after decay is called the..

process by which the order of geologic events and structures can be determined, such as layers of rock

largest divisions of time

when erosion wears away rock and allows new rock above

whats the correct order?

the concept of _____ is used to calculate the numeric ages of igneous and metamorphic rocks.

when an intrusion/fault occur, they're younger than the surrounding rock

older rocks are at the bottom, younger as you go up.

meso=?

when the eroded surface(sedimentary) is horizontal and is covered by new rock layers

what is the original radioactive isotope called?

smaller divisions of eras- usually 10's of millions of years

when sediment rocks are deposited horizontally

identification of actual numeric dates of geologic events

_____ is how long it takes for one half or 50% of the original parent isotope to decay

fragments of other rock found in a rock layer are older

matching rocks or fossils in one area to similar ones in another area

ceno=?

second largest division of deep time

horizontal layers that are uplifted then eroded then covered by new layers

study of geologic time using layers of rock in the earth

paleo=?

smallest division- smaller divisions of periods