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EvC Forum ⇒ Science Forums ⇒ Geology and the Great Flood ⇒

Introduction To Geology

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Author Topic:   Introduction To Geology
TrueCreation
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Message 183 of 294 (675549)
10-12-2012 10:43 AM 		Reply to: Message 173 by petrophysics1
10-06-2012 5:01 PM

Re: Unconformities
quote:
BTW you can not see a jump in fauna across a noncomformity.....because there aren't any fossils in igneous or metamorphic rocks.
Not necessarily. You can preserve fossils in contact metamorphosed sedimentary units, and the thermal budgets of cooling plutons can be large enough for erosional surfaces to be identified as nonconformities.
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