Understanding through Discussion


Welcome! You are not logged in. [ Login ]
EvC Forum active members: 57 (9054 total)
68 online now:
Minnemooseus (Adminnemooseus) (1 member, 67 visitors)
Newest Member: EWolf
Post Volume: Total: 888,326 Year: 5,972/14,102 Month: 120/438 Week: 52/112 Day: 7/8 Hour: 0/0


Thread  Details

Email This Thread
Newer Topic | Older Topic
  
Author Topic:   Mammals rebound
caffeine
Member (Idle past 93 days)
Posts: 1800
From: Prague, Czech Republic
Joined: 10-22-2008


(1)
Message 16 of 20 (865865)
11-01-2019 10:50 AM
Reply to: Message 12 by Faith
11-01-2019 8:01 AM


Re: Mammals not fossilized in the usual way?
So in this case instead of the bones getting fossilized by the replacement of bone material with a fossilizing mineral this mineral collected AROUND the bones instead and built up a rounded casing for them? So inside these concretions are unfossilized bones? Why the different process?

AbE watched it again. There's one point where they say the bones were ALSO fossilzed so I guess that answers my question. Why they also formed this ball of mineral within the rock is still a question though.

There was interesting research on this question recently too. Bunch of researchers from Japan argue that it's due to the release of calcium from bones interacting with clay of certain chemical compositions; and that these calcite concretions probably only take a few years to form.

Full article in Nature here (open access).

Summary in Forbes magazine here


This message is a reply to:
 Message 12 by Faith, posted 11-01-2019 8:01 AM Faith has responded

Replies to this message:
 Message 17 by RAZD, posted 11-01-2019 12:43 PM caffeine has not yet responded
 Message 19 by Faith, posted 11-01-2019 6:04 PM caffeine has acknowledged this reply

  
Newer Topic | Older Topic
Jump to:


Copyright 2001-2018 by EvC Forum, All Rights Reserved

™ Version 4.0 Beta
Innovative software from Qwixotic © 2021