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What is suggested when many fossils are found in one rock layer but none are found in the layer above it?
When many fossils are found in one rock layer but none in the layer above it, it may suggest a period of environmental change or disruption that prevented the deposition of new sediments or the preservation of organisms. This could indicate a significant event, such as a mass extinction, erosion, or changes in climate that rendered the area inhospitable for life. Additionally, it may reflect a gap in the geological record, known as an unconformity, where time is missing due to erosion or non-deposition.
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Fossils found in the lowest geological strata are gerenally the most?
Fossils found in the lowest geological strata are generally the oldest. This is because the law of superposition dictates that older rock layers are found at the bottom, with each successive layer above being younger. Therefore, fossils found in lower strata are older than those in higher strata.
Which layer of the earth are fossils mostly found?
The crust. There are no fossils in the core as the outer core is liquid and no organisms have lived on the inner core.
How does determining the ages of igneous rocks help to date fossils?
Determining the ages of igneous rocks helps to establish the age of the rock layer in which fossils are found. By dating the igneous rocks above and below the fossil-containing layer, scientists can narrow down the possible age range of the fossils found within that layer. This helps to provide a more accurate estimate of the fossil's age.
What layer is an old fossil found?
Fossils are typically found in sedimentary rock layers, which are formed from the accumulation of sediments over time. Fossils are most commonly found in the mid to lower layers of sedimentary rock formations. The specific layer in which a fossil is found depends on the age of the fossil and the geological history of the area.
How would a geologist determine the age of rock layers and fossils if the geologist found a never before seen rock layer that contain fossils?
First step would be relative-dating: examining the new unit in the context of known rocks above and below it. Then look for correlative formations & fossils elsewhere.
What is the layer of gas found above Antarctica?
The layer of gas found above Antarctic is ozone. It was found to be depleted.
Fossils found in the lowest geological strata are gerenally the most?
Fossils found in the lowest geological strata are generally the oldest. This is because the law of superposition dictates that older rock layers are found at the bottom, with each successive layer above being younger. Therefore, fossils found in lower strata are older than those in higher strata.
What layer of soil was dinosaur bones found in?
Fossils are not found in the soil. They are found in layers of rock after time.
Which layer of the earth are fossils mostly found?
The crust. There are no fossils in the core as the outer core is liquid and no organisms have lived on the inner core.
How does determining the ages of igneous rocks help to date fossils?
Determining the ages of igneous rocks helps to establish the age of the rock layer in which fossils are found. By dating the igneous rocks above and below the fossil-containing layer, scientists can narrow down the possible age range of the fossils found within that layer. This helps to provide a more accurate estimate of the fossil's age.
What layer is an old fossil found?
Fossils are typically found in sedimentary rock layers, which are formed from the accumulation of sediments over time. Fossils are most commonly found in the mid to lower layers of sedimentary rock formations. The specific layer in which a fossil is found depends on the age of the fossil and the geological history of the area.
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."
Where ozone layer is found right above?
It is found above troposphere. It is present in stratosphere.
How would a geologist determine the age of rock layers and fossils if the geologist found a never before seen rock layer that contain fossils?
First step would be relative-dating: examining the new unit in the context of known rocks above and below it. Then look for correlative formations & fossils elsewhere.
Fossils of a species of bird are found in layer 3 Which layer is most likely to have organisms that lived at the same time as the bird species?
Layer 2
Fossils of a species of bear are found in layer 5. Which layer is most likely to have organisms that lived at the same time as the bear species?
layer5
Where are older fossils mostly found under or above younger fossils?
If the rocks containing the fossils have been involved in a mountain building episode they would be folded and if some of the folds were laid in a recumbent position and later eroded you would have older above younger rocks. Of course, it would be easy to find out if this was the case because of the various sedimentary structures in each separate layer of rock.
