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Are index fossils short lived?
studyisland awnser: to date a rock layer and other fossils within that layer
What is the relative age of fossils found at the top layer of rock?
They are called index fossils, fossils of organisms that were widespread, evolving quickly, and only appeared in the geologic column for a specific length of time.
What layer is an old fossil found?
fossils are formed in Sedimentary rock
What type of rock layer are tertiary fossils usually found in?
metamorphic
What fossils can be formed from plant leaves a thin layer of carbon on rock?
A fossil fuel
Why do rock fossils form in sedimentary rock and not in igneous rock?
because sedimentary rocks are on the top layer, while igneous rocks are were the magma is
What do geologist use index fossils for?
to date a rock layer and other fossils within that layer
How would you explain a horizontal sedimentary rock layer containing Cambrian fossils lying on top of a rock layer containing Ordovician fossils?
The Adirondack rocks have been both severely folded and sheared by ductile deformation and shattered by brittle.
Which kind of rock has fossils?
layer rocks
Are index fossils short lived?
studyisland awnser: to date a rock layer and other fossils within that layer
What is the relative age of fossils found at the top layer of rock?
They are called index fossils, fossils of organisms that were widespread, evolving quickly, and only appeared in the geologic column for a specific length of time.
How are fossils related to science?
because it has to do with layers of sedimentary rock; piles of rock get stacked upon fossils which means the bottom layer with the fossils is oldest since it was there 1st
What is a specialist in the study of rocks fossils and earth layer?
people who specialize in rock fossils are called paleontologists
What layer is an old fossil found?
fossils are formed in Sedimentary rock
What type of rock layer are tertiary fossils usually found in?
metamorphic
What are the fallacies of fossil dating?
One of the biggest fallacies of fossil dating is that they use the rock layer to help determine the age of the fossils, but the fossils are also used to help determine the age of the rock layer.
What statements states relative age?
"The fossils found in this rock layer are older than the fossils found in the layer above it." "The granite intrusion is younger than the surrounding sedimentary rocks." "The volcanic ash layer is slightly older than the layer of soil above it." "The erosion pattern on the hillside indicates that the granite rocks are older than the layers of sediment deposited on top of them." "The cross-cutting relationship between the fault and the layers of rock indicate that the fault is younger than the rock layers it cuts through."
