Etude geologique de la region situee a l'ouest de Rovereto (Alpes meridionales, province de Trente, Italie)

1963 ◽  
Vol S7-V (5) ◽  
pp. 782-789 ◽  
Author(s):  
Jean Paul Rampnoux
Keyword(s):  
Deep Water ◽  
River Valley ◽  
Upper Eocene ◽  
Lower Eocene

Abstract The NE-SW trending Stivo-Cornetto anticline (Trento province) forms a line of crests separating the Sarca valley from the Adige river valley. The entirely marine sequence includes Liassic and Dogger subreefal limestones succeeded by Malm, Cretaceous and lower Eocene deep water deposits. Emergence or regression resulted in the deposition of neritic facies during the middle and upper Eocene and the Oligocene and Miocene. The deposits are representative of the Tridentine zone.

scholarly journals Arthrodendron maguricum n. sp., a new larger agglutinated foraminifer from the Eocene Magura flysch of the Polish Carpathians and its relationship to komokiaceans and trace fossils

2010 ◽  
Vol 84 (6) ◽  
pp. 1015-1021
Author(s):  
Michael A. Kaminski ◽  
Alfred Uchman ◽  
Andrew K. Rindsberg
Keyword(s):  
Deep Water ◽  
Deep Sea ◽  
Trace Fossils ◽  
Lower Eocene ◽  
Sea Floor ◽  
Polish Carpathians ◽  
Agglutinated Foraminifera

Arthrodendron maguricum n. sp. is described from deep-sea flysch of the lower Eocene Życzanów Conglomerate Member of the Szczawnica Formation (Magura Unit) in the Polish Carpathians. Arthrodendron maguricum is a larger agglutinated foraminifer showing regular, tubular chambers that may branch dichotomously. Its wall is tripartite and composed of an outer organic-rich layer, a main agglutinated layer, and an internal organic-rich layer. The organism evidently lived as epibenthos on the muddy sea floor. Because of their branching morphology and comparatively large dimensions, larger agglutinated foraminifera of the genus Arthrodendron have previously been confused with algae and trace fossils. Care should be taken in such cases to resolve the agglutinated wall and chambers of this deep-water agglutinated foraminifer. Arthrodendron maguricum displays superficial similarities to some modern komokiaceans, especially to Septuma. Further investigations are needed for clarification of their affinities and possible taxonomic consequences.

scholarly journals Verification of gravity-flow models: case study from the Lower Eocene sediments (Tylmanowa site, SE Poland)

Baltica ◽  
2019 ◽  
Vol 32 (1) ◽  
pp. 33-50
Author(s):  
Martyna E. Górska
Keyword(s):  
Deep Water ◽  
Upper Jurassic ◽  
Gradual Transition ◽  
Lower Eocene ◽  
Flow Models ◽  
Se Poland ◽  
Gravity Flows ◽  
Outer Carpathians ◽  
Basin Margin

The thick-bedded, deep-water sandstone succession was described at the Tylmanowa site from the Polish Outer Carpathians. This part of the Carpathians is built mainly of the Upper Jurassic to Paleogene deep-water rocks. Succession at the Tylmanowa site is composed of massive, ripple-cross laminated, planar and trough cross-stratified, horizontally laminated and deformed sandstones as well as massive and horizontally laminated mudstones. All these sediments derived from gravity flows that prograde downslope from a basin margin towards the widespread abyssal plain. Exposed succession records the gradual transition from a decelerating debris flow to a turbidity current what is extraordinary in the recent investigations of deep-water sediments. The study succession has been compared with the widely known sediment models, such as: the classic Bouma Sequence (Bouma 1962), the high-density turbidite model (Lowe 1982), the fluxoturbidite model (Ślączka, Thompson 1981) and the hybrid event bed model (Haughton et al. 2009).

Influence de la tectonique du Pays de Bray sur les formations paleogenes au voisinage de sa terminaison orientale

1964 ◽  
Vol S7-VI (3) ◽  
pp. 357-367 ◽  
Author(s):  
A. Blondeau ◽  
Claude Cavelier ◽  
Charles Pomerol
Keyword(s):  
Late Cretaceous ◽  
Middle Eocene ◽  
Tectonic Activity ◽  
Paris Basin ◽  
Upper Eocene ◽  
Lower Eocene ◽  
Tectonic Movements

Abstract Major facies changes in the Paleogene formations at the southeast end of the Pays de Bray anticline of the Paris basin, in the vicinity of Beaumont-sur-Oise, date tectonic movements and periods of remission during the Paleogene. Although the anticline developed during the late Cretaceous, it seems to have had no significant effect upon sedimentation until its emergence and the concurrent establishment of continental sedimentation in the upper Thanetian (lower Eocene). Tectonic activity occurred again in the lower Sparnacian and the upper Cuisian (lower Eocene), the lower and the upper Lutetian (middle Eocene), the Ledian (lower Priabonian: upper Eocene), the Ludian (upper Priabonian: upper Eocene), and the lower Stampian (middle Oligocene).

scholarly journals Rare Earth Elements Enrichment in the Upper Eocene Tošići-Dujići Bauxite Deposit, Croatia, and Relation to REE Mineralogy, Parent Material and Weathering Pattern

Minerals ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 1260
Author(s):  
Nenad Tomašić ◽  
Andrea Čobić ◽  
Matija Bedeković ◽  
Slobodan Miko ◽  
Nikolina Ilijanić ◽  
...  
Keyword(s):  
Rare Earth ◽  
Chemical Weathering ◽  
Sedimentary Rocks ◽  
Parent Material ◽  
Upper Eocene ◽  
Bauxite Deposit ◽  
Lower Eocene ◽  
Residual Material ◽  
Oxide Phases ◽  
Textural Data

Tošići-Dujići bauxite deposit, situated in Dalmatian inlands, Croatia, contains minor remaining bauxite reserves. The deposit lies on Lower Eocene foraminiferal limestone and is covered by Upper Eocene Promina sediments. Bauxite samples were analyzed for textural, mineralogical, and geochemical features in order to determine absolute REE abundances and their relation to mineralogy, as well as to devise the origin of REE enrichment and to trace weathering and bauxitization paths of the parent material. The samples show total REE abundances up to 3500 mg/kg with significant HREE enrichment in some cases. All samples are gibbsitic with hematite and anatase as major phases. Kaolinite occurs in most of the samples, and goethite, böhmite, and nordstrandite are minor phases. Monazite-(Ce) and xenotime-(Y) were identified as detrital REE minerals as well as authigenic florencite-(Ce). In the REE most abundant sample, REE are most likely bound to Fe- and Ti-oxide phases as suggested by correlation analysis. Chemical weathering proxies show intensive weathering. Geochemical and textural data imply that the REE enrichment is influenced by intensive weathering (CIA 97.87–99.26) of detrital material, and also by possible deposition/redeposition of residual material potentially derived and mobilized from various sedimentary rocks of the area.

Contribution a l'etude geologique des Prealpes carniques orientales (Alpes meridionales, province d'Udine, Italie)

1963 ◽  
Vol S7-V (5) ◽  
pp. 809-820 ◽  
Author(s):  
Michel Cousin
Keyword(s):  
Deep Water ◽  
Upper Cretaceous ◽  
Sedimentary Sequence ◽  
Reef Facies ◽  
Lower Eocene ◽  
Upper Miocene ◽  
Julian Alps

Abstract A lower Liassic to upper Miocene sedimentary sequence, west of Tagliamento, marks a transition from the reef facies of the Friuli zone to the deep water sediments of the Julian Alps. Three distinct tectonic regions can be separated by their stratigraphy: the Pradis-Forgaria autochthon of upper Cretaceous rudistid limestone and lower Eocene flysch underlying Oligocene marls and Miocene molasse; an inclined fold in the Pala-Prat-Pedroc area consisting of Norian to Paleocene fossiliferous limestones; and the Corno-Covria unit. The major tectonics are considered to be post-Pontian.

scholarly journals The ostracod genus <i>Paijenborchella</i> and some of its species in the Early Tertiary of Pakistan

2006 ◽  
Vol 25 (1) ◽  
pp. 65-72 ◽  
Author(s):  
Qadeer A. Siddiqui
Keyword(s):  
Upper Eocene ◽  
Lower Eocene ◽  
Early Tertiary ◽  
Upper Paleocene

Abstract. Six species of the genus Paijenborchella are described. Five of these species are new, namely Paijenborchella (Eopaijenborchella) angulosa, P. (E.) viriosa, P. (E.) ventricaudata, P. (E.) noar and P. (Paijenborchella) inponticulata. The stratigraphic distribution of these species in the Early Tertiary of Pakistan is given; they range from the Lower Eocene to the Upper Eocene in the Sulaiman Range and one species occurs in the Upper Paleocene of the Sor Range.

scholarly journals Palynological and microfossil biostratigraphy and palaeoecology over the Paleocene–Eocene transition, Femern Bælt, northern Germany

1969 ◽  
Vol 31 ◽  
pp. 35-38 ◽  
Author(s):  
Patrick Alexander Richardt ◽  
Emma Sheldon
Keyword(s):  
Upper Eocene ◽  
Northern Germany ◽  
Quaternary Deposits ◽  
Lower Eocene ◽  
Geophysical Investigations ◽  
Upper Paleocene

A palynological and micropalaeontological biostratigraphic and palaeoecological investigation has been carried out on the Paleocene–Eocene transition of core 10.A.057 from the Femern Bælt (Fig. 1). Initial investigations of boreholes from the Femern Bælt indicated that core 10.A.057 included a thick succession of Upper Paleocene – Lower Eocene clay (Sheldon & Nøhr Hansen 2010; Rambøll Arup JV 2011; Fig 2). Complete Paleocene–Eocene sections have been described from Jylland and the Storebælt (Heilmann-Clausen 1985, Laursen & Andersen 1997; Laursen & King 2000, Nielsen et al. 1986), but no detailed studies have been published on these successions from the Femern Bælt. Boreholes were drilled on Lolland in Denmark, under the Femern Bælt and on Fehmarn island, Germany from 2009 to 2011 as part of geological and geophysical investigations performed in preparation for the construction of a fixed road and rail link connecting Denmark and Germany. The boreholes penetrated Campanian – Upper Eocene strata, overlain by Quaternary deposits. Borehole 10.A.057 is located in the southern part of the Femern Bælt (Figs 1, 2).

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