Object's details: Characteristic trace fossils from Miocene brackish-water deposits in the Niger Delta, Nigeria

Provider:Platforma Otwartych Czasopism Naukowych UAM

Description

Title:
Characteristic trace fossils from Miocene brackish-water deposits in the Niger Delta, Nigeria
Creator:
Ezeh, Sunny C.;
Mode, Wilfred A.;
Ozumba, Berti M.
Description:
Miocene deposits in the eastern portion of the Greater Ughelli, Central Swamp and Coastal Swamp depobelts contain well-developed brackish-water trace fossil assemblages. Twelve ichnogenera have been identified, namely: Asterosoma, Bergaueria, Chondrites, Gyrolithes, Thalassinoides, Lockeia, Palaeophycus, ?Conichnus, Planolites, Siphonichnus, Skolithos and Diplocraterion. In addition, common non-descript, passively filled burrows and fugichnia (escape structures) have also been observed. The above-mentioned ichnogenera and associated non-descript structures can be arranged into six distinct and recurring ichnoassociations within the Greater Ughelli, Central Swamp and Coastal Swamp depobelts. Each ichnoassociation is comprised of a group of trace fossils which collectively reflect specific environmental conditions during deposition of these Miocene strata. All trace fossil assemblages illustrate deposition in nearshore, restricted settings. Ichnological and sedimentological criteria which may be utilized to recognise brackish-water deposits are discussed and illustrated in pictures of the cores studied.
Object availability:
free access
Rights:
Prawa autorskie (c) 2018 Sunny C. Ezeh, Wilfred A. Mode, Berti M. Ozumba;
https://creativecommons.org/licenses/by-nc-nd/3.0
Date:
2018.08.01
Type:
info:eu-repo/semantics/article;
info:eu-repo/semantics/publishedVersion;
Research papers
Language:
English;
eng
Source:
Geologos; Vol. 24 No. 2 (2018); 111-125;
Geologos; Tom 24 Nr 2 (2018); 111-125;
2080-6574;
1426-8981
Format:
application/pdf
Publisher:
Adam Mickiewicz University Poznan
Relation: http://pressto.amu.edu.pl/index.php/logos/article/view/logos-2018-0011/30529
Subject:
Ichnoassociations;
ichnology;
salinity;
Greater Ughelli;
Central Swamp;
Coastal Swamp;
Neogene
Identifier: http://pressto.amu.edu.pl/index.php/logos/article/view/logos-2018-0011
Data provider:
Platforma Otwartych Czasopism Naukowych UAM

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Object's details: Characteristic trace fossils from Miocene brackish-water deposits in the Niger Delta, Nigeria

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