Messadit section (Unit 2), Morocco (Miocene of Morocco)

Also known as Messadit section (lower), Morocco

Where: Morocco (35.3° N, 3.0° W: paleocoordinates 35.2° N, 3.2° W)

• coordinate stated in text

• local area-level geographic resolution

When: Messinian (7.2 - 5.3 Ma)

• Data a composite of sampled horizons with lower unit of sequence, unit 2 in text. Unit 2 is a "conglomeratic then bioclastic carbonate complex". No formal lithostratigraphic names used in text. Dated tuff within unit yielded an age of 6.73 +/- 0.02 Ma.

• group of beds-level stratigraphic resolution

Environment/lithology: basinal (); diatomaceous, brown, argillaceous marl

• "The Melilla-Nador basin is one of the post nappe basins of the Rif region created during sun-Tortonian extensional period. Late Tortonian and Messinian deposits are widely transgressive over the tectonized bvasiment and lower part of the Messinian deposits is characterized by southward prograding shallow water bioclastic then reefal complexes, changing to open marine marls and diatomites
• Lower unit comprises marls, marl-diatomite alternations, and volcanic tuffs.

Size class: microfossils

Collection methods: Collection methods not detailed in paper.

Primary reference: S. Roger, P.h. Munich, J.J. Cornee, J.P. Saint Martin, G. Feraud, S. Pestrea, G. Conesa and A. Ben Moussa. 2000. 40Ar/39Ar dating of the pre-evaporitic Messinian marine sequences of the Melilla Basin (Morocco); a proposal for some biosedimentary events as isochrons around the Alboran Sea. Earth and Planetary Science Letters 179:101-113 [A. Miller/A. Hendy/A. Hendy]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 35034: authorized by Austin Hendy, entered by Austin Hendy on 26.10.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

• Taxonomic list in the enterers opinion not complete for section.
 Globigerinaceae - Globorotaliidae
 Tetralithistida - Cylindrophymatidae
Coscinodiscus oculus-iridis Schrammen 1937 demosponge