GuidesMagazineShopBuy FossilsJoin Hunts
Paddy59
Any ideas on this found Whitby beach P_20200530_160240.jpg  P_20200530_160220.jpg  P_20200530_160154.jpg  P_20200530_160141.jpg 
Quote 0 0
Elbert
Hello, this is a nice example for a septarian nodule; not often found as goodlooking as this one!

greets, Bert
the search is as valuable as the finds...
Quote 1 0
Paddy59
Thanks Bert , my knowledge on these is zero , how old would you say and what what is a sectarian ?
Quote 0 0
Paddy59
Thanks , how old would you say and what is a septarian as i know nothing about them ?
Quote 0 0
Barrow Museum
Here's a response I wrote some time ago to a similar enquiry about a septarian nodule:
These formed when a patch of lime concentrated around something in a mudstone sediment (often a shell) a short distance below the seafloor, during the time of deposition of the sediment. These concretions shrank internally as they hardened and small cracks formed in their interior. These filled with mineral, which in your case looks like calcite (lime). You have a very good example of a small but complete one of one of these concretions which has been slightly abraded to reveal the inner structure. Because of the way they formed, it is not unusual for a decent, uncompressed fossil to be found inside them. though it may have a "crazy paving" appearance due to the changes that occurred in the concretion as it became more indurated.
Quote 0 0
Write a reply...


Discussions on fossils, fossil hunting, rocks, locations, and identifying your finds.
(C)opyright 2019 - UKGE Ltd and UK Fossils - Contact us