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
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
Geologists have divided earths history in the manaeable units that are represented by the
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
What kind of weather does a continental tropical air mass bring
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