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they are only been found in a narrow geographic range
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What is the difference between trace fossil and index fossil?
A trace fossil is one that merely indicates that an organism left evidence of its existence. Some examples would be burrows or footprints that appear in sedimentary rock. An index fossil is of an organism that dates to a particular time in the geologic record, the organism only appearing in a certain segment of that record. Index fossils are indicators of the age of the rock in which they are found.
What does fossil fuel transform to?
stupid people would ask these questions . why would i know
What is the biggest impact from burning fossil fuels?
The biggest impact of burning fossil fuels is the modern lifestyle we live. Without the burning if fossil fuels we would have far less healthy lives, that would be much shorter and without heat, transportation, medicine or electricity or computers. Mortality rates would be massively higher.
What would you use to measure the magnitude of an volcano?
Volcanic Explosivity Index
Why would scientists be concerned by the amount of fossil fuels people use?
The fossil fuels will eventually run out and then we have a dilemma of what we would use in it's place. We need to conserve and not waste the limited resource we have.
What is fossils organisms that lived a short period of time called?
They are called index fossils.
Would a shark tooth make a good index fossil Why or Why not?
It depends on how old the tooth is,but other than that,unless it's a rare shark,it wouldn't make a very good index fossil.
What is the difference between trace fossil and index fossil?
A trace fossil is one that merely indicates that an organism left evidence of its existence. Some examples would be burrows or footprints that appear in sedimentary rock. An index fossil is of an organism that dates to a particular time in the geologic record, the organism only appearing in a certain segment of that record. Index fossils are indicators of the age of the rock in which they are found.
Which characteristics of a fossil would you make it useful as an index fossil in determining the relative age of widely separated rock layers?
C). a narrow time range and a wide geographic range
What type of organism would be most useful as an index fossil?
Those that have hard parts that fossilize, are plentiful, ubiquitous and evolve rapidly.
Would horseshoe crabs be useful as an index fossils?
No, Index fossils are used to date certain rock layers where the fossil is found. So it's usefull when you can find a certain index fossil only in a small period of time. So you can get the most precise dating for the rock layer. Horseshoe crabs are known as a 'living fossil', the first fossils of horse shoe crabs are found 450 millions years ago. So when you find a fossil of a horse shoe crab in a rock or sediment, you can't say anything about the age of the rock.
How are fossils organized in the fossil record?
Fossils are arragned in sequential order because of the buildup of material over the top of them for millions of years. Hence, the oldest will be on the bottom. This can be altered by certain geoligical processes and will depend on the rockbed and formation present in the area.
Which fossil would most likely make the best index fossil?
A good index fossil is one of an organism that rapidly evolves and is widespread throughout a geologic time period or periods. This makes it useful in determining the age of the rock formation in which it is contained.
What is index divisor?
The index divisor is used to adjust the index for corporate actions that would affect the index level but would not reflect changes in market conditions.
A fossilized jaw bone would represent what type of fossil?
either: cast fossil petrified fossil imprint fossil trace fossil
The best evidence that a sedimentary rock found on the eastern shore of Lake Erie is the same age as a rock found 500 miles east of Lake Erie would be their similarity in?
index fossil content
Where would a Metria fossil be on fossil fighters?
At Rivet Ravine
