Dinnyes Dolomite Fm Alcsutdoboz-2 borehole 924.5 to 924.0m Alcsutdoboz (Permian of Hungary)

Where: Hungary (47.4° N, 18.6° E: paleocoordinates 0.8° S, 31.4° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Dolomite Member (Dinnyes Dolomite Formation), Changhsingian (254.2 - 252.2 Ma)

• Transdanubian Central Range - On the basis of geological features of the Permian Fms and of the Lower Triassic facies respectively, two areas can be delineated with a transition zone in between. In the NE part of the range from the Budapest area up to the Lake Velence area, the latest Permian Dinnyes Dolomite Fm grades with no break in sedimentation into the Alcsutdoboz Limestone Fm, the bulk of which is Triassic.

• group of beds-level stratigraphic resolution

Environment/lithology: lagoonal or restricted shallow subtidal; dolomitic, gray, yellow, calcareous wackestone

• In text: As a result of sea level fluctuations the upper member of the Dinnyes Dolomite Fm is represented by a cyclic lagoonal facies consisting of an alternation of yellowish-gray dolomite, dark-grey calcareous dolomite and dolomitic limestone as well as light grey limestone. In the uppermost cycle the Dolomitic Mb, with a staedy increase in CaCO3 content, grades into a limestone facies. The transitional member is 1.0 to 1.5 m thick...A layer of transitional dolomite-limestone composition, algal biomicrite (wackestone).

•In log: yellowish gray calcareous dolomite micrite wackestone

Size class: microfossils

Preservation: original calcite, original sporopollenin

Collection methods: core, chemical, sieve

Primary reference: J. Haas, F. Goczan, A. Oravecz-Scheffer, A. Barabas-Stuhl, G. Majoros and A. Berci-Makk. 1986. Permian-Triassic boundary in Hungary. Memorie della Societa Geologica Italiana 34:221-241 [C. Looy/C. Looy/M. Uhen]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 28128: authorized by Cindy Looy, entered by Cindy Looy on 24.01.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

• Besides characteristic Late Permian and Early Triassic sporomorphs displayed in a range chart, other species were recorded. These are included in collection nr and nr .
Show authors, comments, and common names
unclassified
  -
Tympanicysta spp.
Chlorophyceae
 Dasycladales - Dasycladaceae
"Gymnocodium bellerophontis" = Gyroporella bellerophontis
"Gymnocodium bellerophontis" = Gyroporella bellerophontis Rothpletz 1894
abundant
Lueckisporites
  -
Lueckisporites virkkiae
Lueckisporites virkkiae
Potonie and Klaus 1954