Understanding through Discussion

Welcome! You are not logged in. [ Login ]
EvC Forum active members: 85 (8915 total)
Current session began: 
Page Loaded: 07-18-2019 7:09 AM
797 online now:
Heathen, vimesey (2 members, 795 visitors)
Chatting now:  Chat room empty
Newest Member: 4petdinos
Post Volume:
Total: 856,901 Year: 11,937/19,786 Month: 1,718/2,641 Week: 227/708 Day: 2/52 Hour: 0/0

Thread  Details

Email This Thread
Newer Topic | Older Topic
Author Topic:   Introduction To Geology
Inactive Member

Message 183 of 293 (675549)
10-12-2012 10:43 AM
Reply to: Message 173 by petrophysics1
10-06-2012 5:01 PM

Re: Unconformities
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.
This message is a reply to:
 Message 173 by petrophysics1, posted 10-06-2012 5:01 PM petrophysics1 has not yet responded

Newer Topic | Older Topic
Jump to:

Copyright 2001-2018 by EvC Forum, All Rights Reserved

™ Version 4.0 Beta
Innovative software from Qwixotic © 2019