Flashcards - Geologic History

Flashcards - Geologic History
1/13 (missed) 0 0
Create Your Account To Continue Studying

As a member, you'll also get unlimited access to over 79,000 lessons in math, English, science, history, and more. Plus, get practice tests, quizzes, and personalized coaching to help you succeed.

Try it risk-free
Try it risk-free for 30 days. Cancel anytime
Already registered? Log in here for access
Rock strata
In geology and related fields, a stratum is a layer of sedimentary rock or soil with internally consistent characteristics that distinguish it from other layers
Got it
The law of superposition
The law of superposition is an axiom that forms one of the bases of the sciences of geology, archaeology, and other fields dealing with geological stratigraphy
Got it
lateral continuity
The principle of lateral continuity states that layers of sediment initially extend laterally in all directions; in other words, they are laterally continuous
Got it
eras
An era is a span of time marked by character, events, changes on earth, etc
Got it
half-life
Half-life is the time required for a quantity to reduce to half its initial value
Got it
Uniformitarianism
Uniformitarianism is the assumption that the same natural laws and processes that operate in the universe now have always operated in the universe in the past and apply everywhere in the universe
Got it

Ready to move on?

or choose a specific lesson: See all lessons in this chapter
13 cards in set
Front
Back
Uniformitarianism
Uniformitarianism is the assumption that the same natural laws and processes that operate in the universe now have always operated in the universe in the past and apply everywhere in the universe
half-life
Half-life is the time required for a quantity to reduce to half its initial value
eras
An era is a span of time marked by character, events, changes on earth, etc
lateral continuity
The principle of lateral continuity states that layers of sediment initially extend laterally in all directions; in other words, they are laterally continuous
The law of superposition
The law of superposition is an axiom that forms one of the bases of the sciences of geology, archaeology, and other fields dealing with geological stratigraphy
Rock strata
In geology and related fields, a stratum is a layer of sedimentary rock or soil with internally consistent characteristics that distinguish it from other layers
relative dating
Relative dating is the science of determining the relative order of past events , without necessarily determining their absolute age,
daughter product
In nuclear physics, a decay product is the remaining nuclide left over from radioactive decay
radioactive dating
Radiometric dating or radioactive dating is a technique used to date materials such as rocks or carbon, in which trace radioactive impurities were selectively incorporated when they were formed
epoch
In the fields of chronology and periodization, an epoch is an instant in time chosen as the origin of a particular era
body fossil
Fossils are the preserved remains or traces of animals, plants, and other organisms from the remote past
Geologic history
The geological history of Earth follows the major events in Earth's past based on the geologic time scale, a system of chronological measurement based on the study of the planet's rock layers
isotope
Isotopes are variants of a particular chemical element which differ in neutron number

To unlock this flashcard set you must be a Study.com Member.
Create your account

Unlock Your Education

See for yourself why 30 million people use Study.com

Become a Study.com member and start learning now.
Become a Member

Already a member? Log In

Support