Abstract planktonic and larger benthonic foraminifers of the upper cretaceous santonianmaastrichtian. Havana introduction in probably late campanian or early maestrichtian beds of reefal to forereefal facies there occur in cuba, in addition to vaughanina palmer, three new pseud. Original article new biostratigraphic data from cretaceous. Benthonic foraminiferal biostratigraphy of the upper. Foraminiferal biostratigraphy and paleobathymetry of the. Lower tertiary danian rock units from north, northwest and central anatolian fore.
Biostratigraphy upper cretaceous lower tertiary urn rijam jordan planktonic foraminifera. Hendijan oilfield is located on northwest of pesian gulf offshore of iran and geologically in the dezful embayment. A detailed list of the planktonic foraminifera and a few benthonic smaller and larger foraminifera found in the upper cretaceous at site 98 is given on the distributionchart. Several studies have dealt with the benthonic foraminiferal biostratigraphy of the upper cretaceous neritic limestones of the bey daglar. Twelve species of late cretaceous planktonic foraminifera in the k u b rock unit indicates dicarinella concavata zone uppermost turonian to upper coniacian, with close similarity to material described from the central atlantic, southern europe and the middle east. Radiometric data and phylogenetic analysis of cretaceous planktonic foraminifera suggest that the cretaceous be divided into three epochs rather than two. Planktonic foraminifera from the cenomanian and turonian transition, upper cretaceous in the kaneopetsu river section in the oyubari area, hokkaido study on samples collected by dr. Taxanomically, the cretaceous planktonic foraminifera are here divided into two orders. Provincial and depthrelated distribution patterns are inferred for upper cretaceous planktonic foraminifers along the eastern pacific margin. Foraminifera, foraminifera gallery illustrated catalog. Foraminifera from the pierre shale upper cretaceous at red. Agglutinated fossil foraminifera buried deeply in sedimentary basins can be used to estimate thermal maturity, which is a key factor for petroleum generation. It started with own finds from upper campanian quarries near hamburg and was soon substantially enlarged by contributions of images by professionals.
Upper cretaceous sediments 99 mainly consist of white to reddish calcareous nannofossil ooze haq et al. The top of this interval is delineated by the first appearance datum fad of heterohelix navaroensis at 1245 m. New planktonic foraminifera data from the upper cretaceous pelagic limestones of the yuksekova complex in the maden area southeast of elazig, eastern turkey melek ural 1 and bilal sari 2. The study is based on 82 identified planktonic foraminiferal species. Biostratigraphy of the upper cretaceouslower tertiary. Manual of planktonic foraminifera download ebook pdf, epub. New planktonic foraminifera data from the upper cretaceous. Elnaggar british museum national history london 1966. For additional data on the late cretaceous biostratigraphy of the north sea area and the netherlands onshore see for instance crittenden et al 1991, herngreen et al in press and sissingh 1977.
Based planktonic foraminifera study 37 species belonging to 10 genera in frame of two planktonic foraminiferal biozones were identified respectively as below. A 600mthick neritic lower part is capped with thin, massive, hemipelagic. Planktonic foraminifera as tracers of past oceanic environments. Composite scheme for the dismemberment of the bottom sediments of the world ocean by microfossils was developed based on the study of deep sea drilling materials sanfilippo, riedel, 1985. Upper cretaceous the upper cretaceous deposits of holes 196 and 198a that contain benthonic foraminifera are represented by a lithology quite distinct from that of the lower cretaceous. Planktonic foraminifera and sealevel changes in the upper cretaceous of the gurpi formation, lorestan basin, sw iran. Planktonic foraminiferal assemblages are rich and relatively diverse. Upper cretaceous planktonic foraminiferal biostratigraphy from nw.
Foraminifera have many uses in petroleum exploration and are used routinely to interpret the ages and paleoenvironments of sedimentary strata in oil wells. Upper cretaceous and continued into the tertiary and post. Upper cretaceous volcanoclasticsedimentary formations in the. Late cretaceous biostratigraphy planktonic foraminifera of the farokhi formation, iran article pdf available in open journal of geology 0703. Upper cretaceous planktonic foraminifera in northern. Upper cretaceous planktic foraminiferal biostratigraphy. The study of planktonic foraminifera in jorband section reveals two major events in. The first planktonic foraminifera were small, rounded forms popcorn, without ridges, probably with spines. The upper cretaceous sediments in the moghan area, nw iran, contain diverse planktonic and benthic foraminifera, with a total of 33 genera and 53 species 17 genera and 38 species of planktonic.
Upper cretaceous planktonic foraminiferal zoogeography and ecologyeastern pacific margin. Late cretaceousearly paleocene biostratigraphy of the. Pdf the upper cretaceous sequence of the korkuteli area western taurides comprises two formations. Biostratigraphy and paleoenvironment of the upper cretaceous deposits in the northern tarcau nappe eastern carpathians based on foraminifera and calcareous nannoplankton. The following standard zones are recognized in the studied sections. Upper cretaceous lower eocene successions in northeast sinai, egypt. Planktonic foraminifera and sealevel changes in the upper. Upper cretaceous planktonic foraminifera in northern california. Upper cretaceous planktonic foraminiferal biostratigraphy.
Planktonic foraminiferal assemblages from pelagic unit iii, over lying the. Stratigraphy and planktonic foraminifera of the upper cretaceous lower tertiary succession in the esnaidfu region, nile valley, egypt, u. Arenaceous foraminifera are dominanit in most samples. Pdf dissolutionsusceptibility ranking of upper cretaceous. Th e cenomanian planktonic foraminiferal association consists of the relatively abundant genus hedbergella. Foraminiferal biostratigraphy studies of agbara 17 well, niger delta basin, nigeria oloto, i.
Planktonic foraminifera as tracers of past oceanic environments michal kucera contents 1. This study deals with sedimentology, stratigraphy, and systematic analysis of radiolarian and planktonic foraminifera fauna of the upper cretaceous units between trabzon and giresun areas in the northern zone of the eastern pontides. The following remarks are therefore restricted to the comments needed for the understanding of this chart and to a few ambiguous species. Most of the stratigraphic and paleontological studies in the region focus on planktonic foraminifera. Pdf upper cretaceous planktonic foraminiferal biostratigraphy of. Facies development of upper cretaceouslower tertiary. These sediments have 89 meters thick, and strata have been formed of marl and marl limestone. Genus locality fossil query key to species articles about foraminifera gallery database query userguide. In order to indicate the ancient depth of upper cretaceous at this time, planktonic and benthic foraminifera were studied.
Th e coniacian planktonic foraminiferal association is repre. Within the upper cretaceous section, core 28 is assigned to the upper part of the globotruncana gansseri subzone of late middle maestrichtian age, and cores. Cenomanianconiacian upper cretaceous foraminiferal fauna of lithuania associations. This site is like a library, use search box in the widget to get ebook that you want. More than 90% of cretaceous planktonic foraminifera became extinct at the kpg boundary with three survivor species, guembelitria cretacea, hedbergella holmdelensis, and hedbergella monmouthensis, giving rise to the evolution of all paleogene planktonic foraminifera olsson and. Planktonic foraminifera originated from benthic foraminifera in the late jurassic to earliest cretaceous thats in the mesozoic, about 100 million years ago. Oct 23, 2017 the upper part of the tavas nappe succession is represented by planktonic foraminiferabearing uppermost cretaceous cherty micritic limestones and calciturbidites of the babadag formation and lower palaeogene micritic limestones and calciclastic rocks of the faralya formation in the study area. Planktonic foraminifera are one of the most prominent index microfossils to biozonation, because of abundance, great variety, wide spreading and rapidly evolution in upper cretaceous. The recorded planktonic foraminiferal p4 and calcareous nannofossil np5 biozones are suggested that. Upper cretaceous foraminifera from japan kiyoshi asano1 in this paper the discovery in japan of smaller foraminifera from the upper creta ceous strata is recorded for the firsi. A new planktic foraminiferal zonal scheme is presented for subdivision of upper cretaceous pelagic carbonate sequences in the circumantarctic region. Biozonation and paleobathymetry on foraminifera upper. It is overlain by diagenetically altered lower tertiary limestones, yielding good fauna only from one horizon.
Pdf upper cretaceous planktonic foraminiferal biostratigraphy. Cellular structure, reproduction, and shell formation 215 2. Mello abstract foraminifera were recovered from 75 samples taken from the complete section of the pierre shale exposed at red bird, wyo. Late cretaceous planktonic foraminifera from kerguelen plateau odp leg 183. This paper is a synthesis of published and new ammonite, inoceramid and planktonic foraminiferal biostratigraphic data obtained by the authors from the upper cretaceous rocks of the east and south carpathians, especially from the median dacides tectonic units, as well as the babadag basin of north dobrogea, romania. Planktonic foraminiferal biostratigraphy of the upper. Marine faunal microfossils from late jurassic to late. Biostratigraphy of the upper cretaceous of romania. Planktonic foraminifera and sealevel changes in the upper cretaceous of the gurpi formation, lorestan basin, sw iran author links open overlay panel ghamarnaz darabi a iraj maghfouri moghaddam a abbas sadeghi b bijan yusefi a. In northwest europe the upper cretaceous is developed as a uniform cover of predominantly friable, white or creamcoloured, micritic limestones. Description the 140 m dababaiya corehole dbq, drilled in the dababiya quarry about 35 km south of luxor, upper nile valley, egypt, spans the stratigraphic interval from upper campanianlower maastrichtian the globotruncana aegyptiaca zone to the lower eocene. The upper cretaceous paleogene successions are well exposed at the farafra oasis, western desert, egypt. Upper maestrichtian and paleocene planktonic foraminiferal.
Calibration of the stratigraphic ranges of larger benthonic foraminifera. Published planktonic foraminiferal zonations covering the entire upper cretaceous of the northwest shelf of australia have not been previously available. Planktonic foraminifera can be used as ecologic indicators also with respect to. Upper cretaceous volcanoclasticsedimentary formations in. Abstract the upper cretaceous sediments in the moghan area, nw iran, contain diverse planktonic and benthic foraminifera, with a total of 33 genera and 53 species 17 genera and 38 species of planktonic foraminifera and 16 genera and 15 species from benthic foraminifera, which led to the identification of six biozones spanning the middle campanian to late maastrichtian. Upper cretaceous planktonic foraminifera from the western gulf coastal plain. New pseudorbitoididae from the upper cretaceous of cuba, with remarks on encrusting foraminifera paul bronnimann esso standard oil, s. Stratigraical studies on the upper cretaceous lower. Lithostratigraphy and planktonic foraminifera of the uppermost. Based on planktonic foraminifera, the upper cretaceous sediments in the study area are of the turonianlate campanian ages. Late cretaceouscenozoic transgressions in patagonia and. Formation lies at the base and can be divided into two parts. We hope that a detailed study of agglutinated foraminifers will result in a much better stratification of cretaceous deposits. Stratigraphy and planktonic foraminifera of the upper.
Blowiella blowi upper barremian, hedbergella excelsa upper barremianlower aptian, leupoldina. Muwaylih and amr sections have been collected, sampled and studied based on planktonic foraminifera and calcareous nannofossil contents. In view of late research, it has been identified that 28 planktonic foraminifera. New pseudorbitoididae from the upper cretaceous of cuba. Taxonomic 101 concepts applied in this study for the identification of planktonic and benthic foraminifera follow. The upper cretaceous sections of the struganik limestone are characterized by radiolarians together with planktonic foraminifers. Malmgren and others published dissolutionsusceptibility ranking of upper cretaceous planktonic foraminifera find, read and cite all the research you need on researchgate. The upper part of the tavas nappe succession is represented by planktonic foraminiferabearing uppermost cretaceous cherty micritic limestones. Subsequently, blumenthal 19601963 found actaeonella and. The occurrence of marine campanian and maastrichtian sediments, without phosphates emphasizes the. New pseudorbitoididae from the upper cretaceous of cuba, with. Biostratigraphy and assigning the paleosalinity by using.
The lower and upper contacts of studied formation with haftoman and choopanan formations are respectively conform and inconsistent. A more exact zonal scheme for the upper cretaceous has been. This paper presents a detailed study of planktonic foraminifera of the shirshotor unit and establishes for the. The biostratigraphy of the upper cretaceous volcanoclasticsedimentary formations cropping out in the timok eruptive area of the eastern serbian carpathobalkanides is presented. Biozones from the upper turonian to lower campanian are recognized, but the upper lower. This contribution, in addition to its specific bio stratigraphicapplication in japan, has further interest by reason of its extension of the geo.
The percentage of the total planktonic foraminifera to the whole sample of foraminifera after the removal of indwell benthic foraminifera %p using the formulad e3. It is proposed that the former are best divided into three main. These reconstructions, though highly hypo thetical, are considered more reliable than those based on micropaleontology alone. In this study late cretaceous stratum in central iran, baharestan section in isfahan area, was evaluated by biozonation and paleobathymetry. Cenomanianconiacian upper cretaceous foraminiferal fauna. Upper cretaceous and lower paleogene benthic foraminiferal. Cenomanianconiacian upper cretaceous foraminiferal fauna of. The upper cretaceous succession formerly the colville group, which was abandoned by mull et al.
Facies development supported by microfacies analysis of the limestones is described in an upper cretaceous mixed siliciclasticcarbonate sequence from the eastern desert of egypt. Recently, bragina 2016 proposed a radiolarian zonal scheme for the cretaceous upper albiansantonian, and two upper zones of this scheme are recognized in the struganik limestone. Upper cretaceous planktonic foraminiferal zoogeography and. The 72mthick section spans the interval between the upper hauterivian ammonite crioceratites binelli subzone, crioceratites baleraris zone and the lowermost upper barremian ammonite barrancyloceras barremense subzone, toxancyloceras vandenheckii zone. Microbiostratigraphy, microfacies and sequence stratigraphy. Foraminifera from the pierre shale upper cretaceous at red bird, wyoming by james f. Mean time, planktonic foraminifera are the most important fossilic groups in order to searching and interpreting the paleoenvironments. Pdf late cretaceous biostratigraphy planktonic foraminifera. Stratigraphy and microfossils radiolarians and planktonic.
Pdf planktonic foraminifera from the cenomanian and. New planktonic foraminifera data from the upper cretaceous pelagic limestones of the yuksekova complex in the maden area southeast of elazig, eastern turkey. Planktonic foraminifera and the oceans condors home page. Khalil h stratigraical studies on the upper cretaceous lower eocenerocks in central eastern desert, egypt 149 between. Cretaceous planktonic foraminifera from the eastern indian ocean rene herb, geological institute, university of berne, switzerland abstract cretaceous planktonic foraminifera occur at four sites drilled on leg 26. Late cretaceous biostratigraphy planktonic foraminifera of. Pdf new planktonic foraminifera data from the upper. Upper cretaceous planktonic foraminiferal biostratigraphy from nw turkey. Biostratigraphy of the upper cretaceouslower tertiary rocks.
Upper cretaceous volcanoclasticsedimentary formations in the timok eruptive area eastern serbia. Sem images of upper cretaceous significant planktonic foraminifera from the. Upper cretaceous strata are absent on the highstanding arctic platform owing to either nondeposition or erosion, and are absent due to erosion across. Sep 23, 2017 reexamination of the barremianaptian planktonic foraminifers from three sections verkhoirechie, mountain krasnaya, and marino allowed the biostratigraphic scheme for southwest and central crimea to be refined and updated. Biostratigraphy and paleoenvironment of the upper cretaceous. The interval is characterized by the occurrence of upper cretaceous planktonic foraminifera species such as heterohelix globulosa, pseudotextularia elegans and species of heterohelix. In this study, the paleosedimentary depositional environment of the early cenomanian to late eocene deposits of the sarvak, ilam, gurpi, pabdeh and jahrumpabdeh formations was evaluated using microbiostratigraphy, microfacies and dinpefa curves which are an accurate method in. Biology and ecology of planktonic foraminifera 215 2. Primitive globigerines occur in the lower cretaceous, singlekeeled rotalipora faunas. Two upper cretaceous lower tertiary sucessions from elqusaima area, northeast sinai, egypt. Lamoldacatastrophic extinction of planktonic foraminifera at the cretaceous tertiary boundary evidenced by stable isotopes and foraminiferal abundance at caravaca, spain.
Lithostratigraphy and planktonic foraminifera of the. Planktonic and larger benthonic foraminifers of the upper cretaceous santonianmaastrichtian. The maastrichtian assemblages may be different from those of the lower paleogene by their species content, diversity and frequencies. Biostratigraphy of the upper cretaceous deposits in north of birjand, shushud section farah jalili, seyed naser raisossadat2, mahnazalsadat amirshakarami3 and gholamreza mirab shabestari2 1.
With reference to the cretaceous cycle, the upper boundary of planktonic globotruncanids or keeled forms represents a surface that coincides with the upper limit of the marine cretaceous within tropical areas but descends stratigraphically below the upper boundary of the cretaceous toward the polar regions. The upper cretaceous sequence of the korkuteli area western taurides comprises two formations. Upper hauterivian upper barremian planktonic foraminiferal. This study is devoted to an investigation of the planktonic and benthic foraminifera of the upper cretaceous maastrichtian and.
413 1328 1024 1158 103 1488 580 1081 1086 1443 725 1607 1491 1300 1355 694 479 1354 1389 353 900 517 1471 154 1057 1200 275 980 1381 227 1030 487