Interpret data to determine the oldest rock bed. A sandstone contains a 400-million-year-old fossil. A shale has fossils that ar
e over 500 million years old. A limestone, between the sandstone, contains fossils between 400 million and 500 million years old. Which rock bed is oldest? Explain.
A shale has fossils that are over 500 million years old
Explanation:
A shale is a fine-grained sedimentary rock that is a mixture of the clay minerals and the other particles. Has about the variation in the thickness of the ricks ad it exhibits varying degrees of feasibility. Being composed of the clay minerals thus fossil s and even the raindrops are preserved in the shale bedding places and they consist of various carbon deposits.
Rift valley is a region which is lower than normal land area. This is formed by the interaction of the earth's tectonic plates. This linear shaped land is found between mountain ranges created by geologic rift.
