N Naomi? New member May 18, 2010 #1 Volcanic ash is considered a good time marker for correlating rocks because volcanic ash 1. has a dark color 2. can be dated used carbon-14 3. lacks fossils 4. was rapidly deposited over a wide area
Volcanic ash is considered a good time marker for correlating rocks because volcanic ash 1. has a dark color 2. can be dated used carbon-14 3. lacks fossils 4. was rapidly deposited over a wide area
