two layers of rock contain trilobites that have the same body morphology, however one rock layer is a shale and the other is an ironstone. Can these two layers be used for correlation? a-no, layers with the same lithology can only be used for correlation purposesb-No, the ironstone has been altered by oxidation and thus is older that the shalec-Yes if the trilobites are the same then the layers were formed at the same timed-Yes the ironstone is the altered remains of the shale and thus the layers are the same

Question

Geography

Livia Waller

8 December, 12:51

two layers of rock contain trilobites that have the same body morphology, however one rock layer is a shale and the other is an ironstone. Can these two layers be used for correlation? a-no, layers with the same lithology can only be used for correlation purposesb-No, the ironstone has been altered by oxidation and thus is older that the shalec-Yes if the trilobites are the same then the layers were formed at the same timed-Yes the ironstone is the altered remains of the shale and thus the layers are the same

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Answers (2)

Know the Answer?

Compton · Answer 1

Yes, because the body a plate that let's the body function.

Jovanny Boyle · Answer 2

Answer: two layers of rock contain trilobites that have the same body ... The Same Body Morphology, However One Rock Layer Is A Shale And The Other Is ... A-no, Layers With The Same Lithology Can Only Be Used For Correlation ... b-No, the ironstone has been altered by oxidation and thus is older that the shale.