What kind of sediment forms from minerals that crystallize from sea water?

Geologists know that potassium-40 decays to argon-40, with a half-life of 1.3 billion years. if an analysis of a feldspar crystal in a sample of granite shows that 75 percent of the potassium-40 atoms have decayed to form argon-40, what is the age of the granite

What is meant by the term relative location?

Como se presentan los personajes de cunshi y su pequeño hijo? describe a cada uno de ellos