UNIGE document Scientific Article
previous document  unige:4686  next document
add to browser collection
Title

New algae and problematica of algal affinity from the permian of the Aseelah Unit of the batain plain (East Oman)

Authors
Vachard, D.
Matter, A.
Peters, T.
Published in Geobios. 2001, vol. 34, no. 4, p. 375-404
Abstract Permian microfloras occur in limestone boulders of the Aseelah Unit at the lower part of the Batain Group (NE Oman). The boulders are composed of bioclastic limestones deposited during the Permian on a shallow marine warm shelf environment. They yield several rich associations of Dasycladales, tubiphytids and Archaeolithophyllaceae indicating a Yakhtashian to Dzhulfian age (dated by fusulinids). The algal-bearing Aseelah Unit overlies conformably the Permian Qarari Unit deposited on the distal slope of the Arabian carbonate platform. The conglomerate and sandstone sheddings of the Aseelah Unit indicate the end of a major transgressive-regressive cycle at the Permian/Triassic boundary. The oldest age of the depositional event is given by the Dzhulfian age of the youngest reworked boulders. The age of the sandstones and sandy matrix is not well established; it is post-Dzhulfian, probably Triassic on the basis of some palynological indications. Several new taxa are described: Aphralysiaceae nov. fam., Sparaphralysia orientalis nov. sp., Mellporellopsis corpulenta nov. gen. nov. sp., Aseelahella granieri nov. gen. nov. sp., Claracrustinae nov. subfam., Claracrusta ungdarelloidea nov. sp. and Sphairionia galinae nov. sp.
Keywords Omanbatain plainAseelah unitPermianalgaemicroproblematica
Identifiers
Note = Nouvelles algues et formes affines problématiques du Permien de l'Unité d'Aseelah (Plaine de Batain, Est Oman)
Full text
Article (Published version) (2.8 MB) - document accessible for UNIGE members only Limited access to UNIGE
Structures
Research group Sedimentology, Biostratigraphy and Micropaleontology
Citation
(ISO format)
VACHARD, D. et al. New algae and problematica of algal affinity from the permian of the Aseelah Unit of the batain plain (East Oman). In: Geobios, 2001, vol. 34, n° 4, p. 375-404. https://archive-ouverte.unige.ch/unige:4686

188 hits

1 download

Update

Deposited on : 2009-12-18

Export document
Format :
Citation style :