The Mazama ash has been dated at numerous locations in the western US to 6900 years old. This means that if anarchaeologist find
s the Mazama ash in a stratified context, he or she knows that everything above it is less than6900 years old, and everything below it is more than 6900 years old. The Mazama ash is an example of a: colluvial sediment. soil horizon. marker bed. sedimentary deposit that has been disturbed, resulting in reversed stratigraphy.
Marker beds are distinct strata that are found in other sites in the same region. They can give evidence to age of sediments in a new site if they’ve been assigned a date in other sites. The Mazama ash is consisted of fragments that were ejected into the air by a volcanic eruption of the Mount Mazama, from Oregon Cascades. It blew up 6900 years ago and the ashes were carried by the wind. When the ash settled, it created a marker bed.
The Bill of Rights is the first 10 Amendments to the Constitution. It spells out Americans' rights in relation to their government. It guarantees civil rights and liberties to the individual—like freedom of speech, press, and religion.
The Supreme Court ruled against segregated schools on the grounds that, the separation of race is inherently unequal. (The previous ruling on segregation was that it was okay as long as they were equal)