Planktonic versus benthic foraminifera response to Milankovitch forcing (Late Jurassic, Betic Cordillera): testing methods for cyclostratigraphic analysis

Facies ◽  
2010 ◽  
Vol 56 (3) ◽  
pp. 459-470 ◽  
Author(s):  
Francisco J. Rodríguez-Tovar ◽  
Matías Reolid ◽  
Eulogio Pardo-Igúzquiza
2013 ◽  
Vol 64 (1) ◽  
pp. 63-69 ◽  
Author(s):  
Elżbieta Morycowa ◽  
Barbara Olszewska

Abstract The paper deals with benthic foraminifera occurring with the scleractinian corals in the Jurassic biohermal and peribiohermal coral-bearing limestones of the Vršatec area (Czorsztyn Succession, Slovak Pieniny Klippen Belt). The coral community is dominated by branching forms of the genus Thecosmilia. Co-occurring abundant benthic foraminifera belong to the species Rumanolina seiboldi, R. elevata, Paalzowella turbinella and Troglotella incrustans. The coral-bearing limestones were initially assigned to the Oxfordian on the basis of the microfacies analyses and bivalve and scleractinian faunas. In recent papers they are assigned to the Bajocian on the basis of ammonites found in the neptunic dykes and stratigraphic superimposition criteria. However, the stratigraphic distribution of the majority of the identified foraminifera indicates that like most scleractinian coral taxa they are not known earlier than in the Late Jurassic. The Late Jurassic age of these coral-bearing limestones is also suggested by an encrusting microproblematic organism Iberopora bodeuri.


2010 ◽  
Vol 22 (5) ◽  
pp. 717-732 ◽  
Author(s):  
S. Boulila ◽  
B. Galbrun ◽  
L. A. Hinnov ◽  
P.-Y. Collin ◽  
J. G. Ogg ◽  
...  

Geobios ◽  
2008 ◽  
Vol 41 (6) ◽  
pp. 799-817 ◽  
Author(s):  
Lourdes Omaña ◽  
Celestina González Arreola

1988 ◽  
Vol 62 (01) ◽  
pp. 1-8 ◽  
Author(s):  
Ronald E. Martin

The utility of benthic foraminifera in bathymetric interpretation of clastic depositional environments is well established. In contrast, bathymetric distribution of benthic foraminifera in deep-water carbonate environments has been largely neglected. Approximately 260 species and morphotypes of benthic foraminifera were identified from 12 piston core tops and grab samples collected along two traverses 25 km apart across the northern windward margin of Little Bahama Bank at depths of 275-1,135 m. Certain species and operational taxonomic groups of benthic foraminifera correspond to major near-surface sedimentary facies of the windward margin of Little Bahama Bank and serve as reliable depth indicators. Globocassidulina subglobosa, Cibicides rugosus, and Cibicides wuellerstorfi are all reliable depth indicators, being most abundant at depths >1,000 m, and are found in lower slope periplatform aprons, which are primarily comprised of sediment gravity flows. Reef-dwelling peneroplids and soritids (suborder Miliolina) and rotaliines (suborder Rotaliina) are most abundant at depths <300 m, reflecting downslope bottom transport in proximity to bank-margin reefs. Small miliolines, rosalinids, and discorbids are abundant in periplatform ooze at depths <300 m and are winnowed from the carbonate platform. Increased variation in assemblage diversity below 900 m reflects mixing of shallow- and deep-water species by sediment gravity flows.


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