Morphotype patterns of Norwegian Sea deep-sea benthic foraminifera and ecological implications

Corliss, Bruce H.; Chen, Christina

doi:10.1130/0091-7613(1988)016<0716:mponsd>2.3.co;2

Cited by 544 publications

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“…Kaiho & Nishimura 1992). These species also provide evidence of dysoxic and highly productive conditions (Corliss & Chen 1988). The occurrence of trochamminid species and bathyal benthic foraminifers in the upper part of the Lučenec Formation indicates a deepeningupward basin during the Egerian time.…”

Section: Foraminifera: Biostratigraphy and Paleoenvironmentsmentioning

confidence: 99%

Oligocene-Early Miocene Planktonic Microbiostratigraphy and Paleoenvironments of the South Slovakian Basin (Lučenec Depression)

Ozdínová

Soták²

2015

Geologica Carpathica

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Oligocene and Lower Miocene sediments of the Lučenec Depression were studied to demonstrate the planktonic bioevents and climatic proxies from the Číž Formation (Rupelian) and Lučenec Formation (Chattian-Aquitanian) on the basis of quantitative analyses of foraminifers and calcareous nannofossils. The oldest nannofossil assemblages of the Číž Formation belonged to the NP23 Zone and were dominated by Reticulofenestra ornata known for preference of temperate eutrophic water conditions. An increase in bioproductivity was documented by abundant large-sized planktonic foraminifers (e.g. Turborotalia ampliapertura, Paragloborotalia nana, Subbotina gortanii) and epifaunal to shallow-infaunal benthic species. The middle part of the Číž Formation reveals a lowstand progradation of deltaic sediments of the Rapovce Member. There, the planktonic foraminifers are impoverished in both size and diversity, containing mostly tenuitellid and cassigerinellid species, probably as a result of decreased salinity and increased anoxia in the Tard Clay. Contrary of this, the benthic foraminifers are rich, mainly the infaunal forms of uvigerinid species. They probably proliferated due to a high organic flux from riverine input.

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Section: Foraminifera: Biostratigraphy and Paleoenvironmentsmentioning

confidence: 99%

Oligocene-Early Miocene Planktonic Microbiostratigraphy and Paleoenvironments of the South Slovakian Basin (Lučenec Depression)

Ozdínová

Soták²

2015

Geologica Carpathica

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“…The clas si fi ca tion of the ben thic foraminifera in epifaunal or infaunal, and as oxic, suboxic or dysoxic in di ca tors was based on lit er a ture data and the mor phol ogy of the test (e.g., Corliss and Chen, 1988;Corliss and Fois, 1990;Sen Gupta and Machain-Castillo, 1993;Kaiho, 1994Kaiho, , 1999Kouwenhoven and Van der Zwaan, 2006;Jorissen et al, 2007;Kaminski, 2012).…”

Section: Methodsmentioning

confidence: 99%

Palaeoenvironmental changes in the Transylvanian Basin during the Early Miocene revealed by the foraminifera assemblages

Székely

Beldean

Bindiu

et al. 2015

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. Palaeoenvironmental changes in the Transylvanian Ba sin dur ing the Early Mio cene re vealed by the foraminifera as sem blages. Geo log i cal Quar terly, 60 (1): 167-180, doi: 10.7306/gq.1245The evo lu tion of the Transylvanian Ba sin dur ing the Early Mio cene has been re con structed from the suc ces sion of palaeoenvironments in ferred from sedimentological trends and the suc ces sion of spe cific foraminiferal as sem blages from Lower Mio cene Tihãu sec tion in the north west ern Transylvanian Ba sin. Plank tonic foraminifera sug gest a Burdigalian age and re cord sea level changes, cli ma tic and pro duc tiv ity events. Ben thic foraminifera of fer data on the palaeoenvironmental evo lu tion, with a large-scale progradational (coars en ing up) sed i men tary suc ces sion in flu enced by re gional tec ton ics. The suc ces sion of depositional events in cludes: (1) transgressive coarse grained de pos its with typ i cal Med i ter ra nean as semblages of bi valves in beach en vi ron ments; (2) a glauconitic fa cies which can be as so ci ated with the max i mum flood ing surface of the trans gres sion; (3) sed i men ta tion con tin ued on a nar row shelf in flu enced by del tas dur ing the highstand; (4) the in flu ence of re gional tec ton ics and sub se quent fill ing with turbidites as so ci ated with fan del tas.

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“…Deep-sea benthic foraminifera show a variety of test shapes that apiece determined environmental condition. Last data on living individuals from modern oceans suggest that test morphology of benthic foraminifera is correlated to microhabitat preferences (Corliss and Chen 1988).…”

Section: Discussionmentioning

confidence: 99%

“…Corliss, 1985;Corliss and Chen, 1988;Jones and Charnock, 1985), allows us to infer probable microhabitat preferences and environmental parameters such as the nutrient supply and oxygenation sea floor (e.g. Bernhard, 1986;Fontanier et al, 2002;Murray, 2001), Corliss (1985Corliss ( , 1991, Jones and Charnock (1985), Corliss and Chen (1988) and Alegret et al 2003. Subdivided benthic foraminifera to two morphotypebenthic foraminifera with planoconvex, biconvex and rounded trochospiral tests, tubular and coiled flattened milioline and palmate tests, have an epifaunal mode of life, these living at the sediment surface or in its upper few centimeters. Infaunal morphogrup , living in the deeper layers of the sediment.…”

Section: Paleoecology Oxygen and Productivitymentioning

confidence: 99%

Paleoecology of the Maastrichtian and Danian sediment at North of Central Alborz, Iran, based on Planktonic foraminifera

Balmaki

2010

Nat Prec

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In order to study the fossil contents of the Ziarat-kola section for biostratigraphical purposes the 212 meters was sampled at Central Alborz. The sequence is mainly made up of monotonous grey-green to light grey marl. Based on Planktonic foraminifera age of Maastrichtian-Danian is determined to the section.Four zone were determined by the benthic foraminifera morphogroup for showing oxygen and productivy change. The approximate Low oxygen and high food supply has been indicates zone of one that increase infauna to epifauna morphotype percent is low(nearness 60% infouna , 40% epifauna). In zone two, with due attention to equal percent of Epifauna ratio to infauna , intermediate oxygen and food supply is anticipated .The decrasing epifauna foraminifera and increasing infauna demonstrates low oxygen and high food supply condition at zone of three. In zone four, increasing epifauna (approximate 90 percent) that are indicated high oxygen condition and low food supply. Analysis of planktonic foraminifera assemblage at this section with Cretaceous biostratigraphical provinces is indicating a close similarity with Tethyan provinces.

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Morphotype patterns of Norwegian Sea deep-sea benthic foraminifera and ecological implications

Cited by 544 publications

References 0 publications

Oligocene-Early Miocene Planktonic Microbiostratigraphy and Paleoenvironments of the South Slovakian Basin (Lučenec Depression)

Oligocene-Early Miocene Planktonic Microbiostratigraphy and Paleoenvironments of the South Slovakian Basin (Lučenec Depression)

Palaeoenvironmental changes in the Transylvanian Basin during the Early Miocene revealed by the foraminifera assemblages

Paleoecology of the Maastrichtian and Danian sediment at North of Central Alborz, Iran, based on Planktonic foraminifera

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