Shale is a clastic rock, meaning that it forms when are squeezed or cemented together (or both).

Read the article titled "castro resigns." why did the us impose trade sanctions against cuba in 1962?

What are some of the impacts of humans on the earth?

15 points need quick 1. looking at your graph and the geologic time scale during what period did this rock form? what is the age span of the rock, in millions of years? 2. this rock sample is limestone and shale. with what you know about rock formation, what type of environment did these organisms live in? 3. if some of these fossil samples were found in a rock also containing leaf fossils, could you use radiocarbon dating to determine the age of this rock? explain.