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Geology

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Litzy Jaskolski

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Cards in this guide (13)
According to the principle of cross-cutting relationships an intrusive rock body is

Younger than the rock it intrudes into

What are eras divided into

The constituent time segments are epochs and periods, which are further divided into ages.

When did the precambrian era end

About 540 million years ago.

Used to date fossils in rocks to give an approximate age

Radiocarbon Dating.

Radiometric dating does not usually work with sedimentary rocks because they

Form from many older rock particles.

What is the name of the doctrine that states the physical chemical and biological laws that operate today have also operated in the geologic past

Uniformitarianism

Geologists have divided earths history in the manaeable units that are represented by the

Geologic time scale

An air mass is a large body of air with uniform temperature and

temperature humidity and pressure

What are long sand ridges oriented nearly parallel to the prevailing wind called

longitudinal dunes

What kind of weather does a continental tropical air mass bring

Hot and sunny. ;)

What does the radiometric date of metamorphic rock most likely represent

heated during metamorphism

Which item could be dated using radiocarbon dating

A 60,000 year old mammoth bone.

The boundaries of history of eras are marked by great worldwide changes in

The boundaries of history of eras are marked by great worldwide changes in continental coastline

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