Geologica acta

Geologica acta Encontrados 18 registros  La búsqueda tardó 0.01 segundos. 
1.
9 p, 570.0 KB Climate and Biota of the Early Paleogene : recent advances and new perspectives / Pujalte, V. (Universidad dels País Vasco. Departamento de Estratigrafia y Paleontología) ; Payros, A. (Universidad dels País Vasco. Departamento de Estratigrafia y Paleontología) ; Apellaniz, E. (Universidad dels País Vasco. Departamento de Estratigrafia y Paleontología)
2009 - 10.1344/105.000000283
Geologica acta, Vol. 7, Núm. 1-2 (Març-Juny 2009) , p. 1-9  
2.
29 p, 7.1 MB Late Maastrichtian-Early Paleocene sea level and climate changes in the Antioch Church Core (Alabama, Gulf of Mexico margin, USA): a multi-proxy approach / Schulte, Peter (Universität Erlangen. GeoZentrum Nordbayern) ; Speijer, Robert P. (K.U.Leuven. Department of Earth and Environmental Sciences)
The Antioch Church core from central Alabama, spanning the Cretaceous-Paleogene (K-P) boundary, was investigated by a multi-proxy approach to study paleoenvironmental and sea level changes within the wellconstrained sequence stratigraphic setting of the Gulf of Mexico margin. [...]
2009 - 10.1344/105.000000279
Geologica acta, Vol. 7, Núm. 1-2 (Març-Juny 2009) , p. 11-34  
3.
27 p, 3.7 MB A Danian subtropical lacustrine palynobiota from South America (Bororó Formation, San Jorge Basin, Patagonia - Argentina) / Scafati, L. (CONICET. Museo Argentino de Ciencias Naturales "B. Rivadavia". División Paleobotánica) ; Melendi, D.L. (CONICET. Museo Argentino de Ciencias Naturales "B. Rivadavia". División Paleobotánica) ; Volkheimer, W. (CONICET. Unidad de Paleopalinología, IANIGLA-CCT-Mendoza)
New results on a lacustrine Danian palynological association in extra-andean northern Patagonia (lower member of the Cerro Bororó Formation, San Jorge Basin, Chubut province, Argentina) are presented. [...]
2009 - 10.1344/105.000000270
Geologica acta, Vol. 7, Núm. 1-2 (Març-Juny 2009) , p. 35-61  
4.
15 p, 1.5 MB Biostratigraphy of the Danian/Selandian transition in the southern Tethys. Special reference to the Lowest Occurrence of planktic foraminifera Igorina albeari / Sprong, J. (K.U.Leuven. Biogeology Research Group) ; Speijer, R.P. (K.U.Leuven. Biogeology Research Group) ; Steurbaut, E. (Royal Belgian Institute of Natural Sciences)
The P3a/P3b subzonal boundary is delineated by the lowest occurrence of Igorina albeari. Using literature, identification of the first representatives of I. albeari appeared to be very confusing. In this study descriptions of I. [...]
2009 - 10.1344/105.000000271
Geologica acta, Vol. 7, Núm. 1-2 (Març-Juny 2009) , p. 63-77  
5.
14 p, 2.3 MB New high resolution calcareous nannofossil analysis across the Danian/Selandian transition at the Zumaia section : comparison with South Tethys and Danish sections / Bernaola, G. (Universidad del País Vasco. Departamento de Ingeniería Minera y Metalúrgica y Ciencia de los Materiales) ; Martín-Rubio, M. (Universidad del País Vasco. Departamento de Estratigrafía y Paleontología) ; Baceta, J.I. (Universidad del País Vasco. Departamento de Estratigrafía y Paleontología)
A high resolution calcareous nannofossil biostratigraphic analysis was carried out across the Danian/Selandian transition at the Zumaia section (western Pyrenees). In the studied interval, spanning Varol's Subzone NTp7a to Zone NTp9, a sequence of 10 distinct calcareous nannofossil events is identified. [...]
2009 - 10.1344/105.000000272
Geologica acta, Vol. 7, Núm. 1-2 (Març-Juny 2009) , p. 79-92  
6.
20 p, 2.8 MB Reconstruction of a latest Paleocene shallow-marine eutrophic paleoenvironment at Sidi Nasseur (Central Tunisia) based on foraminifera, ostracoda, calcareous nannofossils and stable isotopes (d13C, d18O) / Stassen, P. (K.U.Leuven. Department of Earth and Environmental Sciences) ; Dupuis, C. (Faculté Polytechnique de Mons) ; Morsi, A.M. (Ain Shams University. Department of Geology,) ; Steurbaut, E. (Royal Belgian Institute of Natural Sciences. Department of Paleontology) ; Speijer, R.P. (K.U.Leuven. Department of Earth and Environmental Sciences)
In order to unravel faunal and paleoenvironmental parameters in shallow marine settings prior to the Paleocene- Eocene thermal maximum, we investigated the Sidi Nasseur section (NAS) in Central Tunisia. [...]
2009 - 10.1344/105.000000273
Geologica acta, Vol. 7, Núm. 1-2 (Març-Juny 2009) , p. 93-112  
7.
12 p, 1.1 MB An anachronistic Clarkforkian mammal fauna from the Paleocene Fort Union Formation (Great Divide Basin, Wyoming, USA) / Anemone, Robert L. (Western Michigan University. Department of Anthropology) ; Dirks, Wendy (Newcastle University. School of Dental Sciences, Oral Biology)
The Clarkforkian (latest Paleocene) North American Land Mammal Age (NALMA) remains a relatively poorly sampled biostratigraphic interval at the close of the Paleocene epoch that is best known from the Bighorn Basin of northwestern Wyoming. [...]
2009 - 10.1344/105.000000274
Geologica acta, Vol. 7, Núm. 1-2 (Març-Juny 2009) , p. 113-124  
8.
21 p, 4.1 MB Early Paleogene climate at mid latitude in South America: mineralogical and paleobotanical proxies from continental sequences in Golfo San Jorge basin (Patagonia, Argentina) / Raigemborn, M. (CONICET. Centro de Investigaciones Geológicas) ; Brea, M. (CICYTTP-CONICET. Laboratorio de Paleobotánica, Centro de Investigaciones Científicas) ; Zucol, A. (CICYTTP-CONICET. Laboratorio de Paleobotánica, Centro de Investigaciones Científicas) ; Matheos, S. (CONICET. Centro de Investigaciones Geológicas)
The Paleocene-Eocene boundary was a period of transient and intense global warming that had a deep effect on middle and high latitude plant groups. Nevertheless, only scarce early Paleogene paleoclimatic records are known from the South American continental sequences deposited at these latitudes. [...]
2009 - 10.1344/105.000000269
Geologica acta, Vol. 7, Núm. 1-2 (Març-Juny 2009) , p. 125-145  
9.
14 p, 2.1 MB Palynology of Lower Palaeogene (Thanetian-Ypresian) coastal deposits from the Barmer Basin (Akli Formation, Western Rajasthan, India) : Palaeoenvironmental and palaeoclimatic implications / Tripathi, S.K.M. (Birbal Sahni Institute of Palaeobotany) ; Kumar, M. (Birbal Sahni Institute of Palaeobotany) ; Srivastava, D. (Birbal Sahni Institute of Palaeobotany)
The 32-m thick sedimentary succession of the Paleocene-Eocene Akli Formation (Barmer basin, Rajasthan, India), which is exposed in an open-cast lignite mine, interbed several lignite seams that alternate with fossiliferous carbonaceous clays, green clays and widespread siderite bands and chert nodules. [...]
2009 - 10.1344/105.000000275
Geologica acta, Vol. 7, Núm. 1-2 (Març-Juny 2009) , p. 147-160  
10.
15 p, 3.3 MB Correlation of the Thanetian-Ilerdian turnover of larger foraminifera and the Paleocene-Eocene thermal maximum : confirming evidence from the Campo area (Pyrenees, Spain) / Pujalte, V. (Universidad del País Vasco. Departamento de Estratigrafía y Paleontología) ; Schmitz, B. (University of Lund. Department of Geology) ; Baceta, J. I. (Universidad del País Vasco. Departamento de Estratigrafía y Paleontología) ; Orue-Etxebarria, X. (Universidad del País Vasco. Departamento de Estratigrafía y Paleontología) ; Bernaola, G. (Universidad del País Vasco. Departamento de Estratigrafía y Paleontología) ; Dinarès-Turell, J. (Istituto Nazionale di Geofisica e Vulcanologia) ; Payros, A. (Universidad del País Vasco. Departamento de Estratigrafía y Paleontología) ; Apellaniz, E. (Universidad del País Vasco. Departamento de Estratigrafía y Paleontología) ; Caballero, F. (Universidad del País Vasco. Departamento de Estratigrafía y Paleontología)
It has long been known that a major larger foraminifera turnover (LFT) occurred at the boundary between the Thanetian and Ilerdian stages, but its possible correlation with the Paleocene-Eocene thermal maximum (PETM) was unsuspected until the work of Baceta (1996), and has been controversial ever since. [...]
2009 - 10.1344/105.000000276
Geologica acta, Vol. 7, Núm. 1-2 (Març-Juny 2009) , p. 161-175  
11.
18 p, 2.2 MB Redefinition of the Ilerdian Stage (early Eocene) / Pujalte Navarro, Victoriano (Universidad del País Vasco. Departamento de Estratigrafía y Paleontología) ; Baceta, J. I. (Universidad del País Vasco. Departamento de Estratigrafía y Paleontología) ; Schmitz, B. (University of Lund. Department of Geology) ; Orue-Etxebarría Urkiza, Xavier (Universidad del País Vasco. Departamento de Estratigrafía y Paleontología) ; Payros, A. (Universidad del País Vasco. Departamento de Estratigrafía y Paleontología) ; Bernaola, G. (Universidad del País Vasco. Departamento de Estratigrafía y Paleontología) ; Apellaniz, E. (Universidad del País Vasco. Departamento de Estratigrafía y Paleontología) ; Caballero, F. (Universidad del País Vasco. Departamento de Estratigrafía y Paleontología) ; Robador Moreno, Alejandro (Instituto Geológico y Minero de España) ; Serra-Kiel, Josep (Universitat de Barcelona. Departament d'Estratigrafia, Paleontologia i Geociències Marines) ; Tosquella, J. (Universidad de Huelva. Departamento de Geodinámica y Paleontología)
The Ilerdian Stage was created by Hottinger and Schaub in 1960 to accommodate a significant phase in the evolution of larger foraminifera not recorded in the northern European basins, and has since been adopted by most researchers working on shallow marine early Paleogene deposits of the Tethys domain. [...]
2009 - 10.1344/105.000000268
Geologica acta, Vol. 7, Núm. 1-2 (Març-Juny 2009) , p. 177-194  
12.
20 p, 5.3 MB Recalibration of the Tethyan shallow-benthic zonation across the Paleocene-Eocene boundary : the Egyptian record / Scheibner, Christian (Universität Bremen) ; Speijer, Robert P. (K.U. Leuven. Department of Earth and Environmental)
The Galala Mountains in Egypt provide an excellent platform-basin transect with deposits spanning the Paleocene/ Eocene (P/E) boundary. These interfingering deposits enable a recalibration between platform and open marine biostratigraphic schemes. [...]
2009 - 10.1344/105.000000267
Geologica acta, Vol. 7, Núm. 1-2 (Març-Juny 2009) , p. 195-214  
13.
13 p, 1.9 MB From shelf to abyss : record of the Paleocene/Eocene-boundary in the Eastern Alps (Austria) / Egger, Hans (Geological Survey of Austria) ; Heilmann-Clausen, Claus (Aarhus Universitet. Geologisk Institut) ; Schmitz, Birger (University of Lund. Department of Geology)
In the Eastern Alps (Austria) several marine successions, which were deposited ranging from shallow shelf to bathyal slope and abyssal basin, provide detailed records across the Paleocene/Eocene-boundary. [...]
2009 - 10.1344/105.000000266
Geologica acta, Vol. 7, Núm. 1-2 (Març-Juny 2009) , p. 215-227  
14.
14 p, 1.6 MB Rock magnetic properties across the Paleocene-Eocene Thermal Maximum in Marlborough, New Zealand / Villasante-Marcos, Víctor (Universidad Complutense de Madrid. Departamento de Geofísica y Meteorología) ; Hollis, Chris (GNS Science) ; Dickens, Gerald R. (Rice University. Department of Earth Sciences) ; Nicolo, Micah J. (Rice University. Department of Earth Sciences)
Rock magnetic properties have been investigated across the Paleocene-Eocene Thermal Maximum (PETM) in three uplifted sections of Paleogene marine sedimentary rocks in Marlborough, South Island, New Zealand. [...]
2009 - 10.1344/105.000000280
Geologica acta, Vol. 7, Núm. 1-2 (Març-Juny 2009) , p. 229-242  
15.
16 p, 1.8 MB The role of new Iberian finds in understanding European Eocene mammalian paleobiogeography / Badiola Kortabitarte, Ainara (Universidad de Zaragoza. Área de Paleontología) ; Checa, Lluís (Institut Català de Paleontologia Miquel Crusafont) ; Cuesta Ruiz-Colmenares, Miguel Ángel (Universidad de Salamanca. Departamento de Geología) ; Quer, Ramón (Institut Català de Paleontologia Miquel Crusafont) ; Hooker, Jerry J. (The Natural History Museum. Palaeontology Department) ; Astibia Ayera, Humberto (Universidad del País Vasco. Departamento de Estratigrafía y Paleontología)
This paper summarizes the new Eocene mammalian discoveries in western and northeastern Iberia and analyses the paleobiological data they provide towards an understanding of the evolutionary and paleobiogeographic history of the Eocene mammalian faunas across Europe. [...]
2009 - 10.1344/105.000000281
Geologica acta, Vol. 7, Núm. 1-2 (Març-Juny 2009) , p. 243-258  
16.
21 p, 4.0 MB Biostratigraphy of larger foraminifera in the Eocene (upper Ypresianlower Bartonian) sequences of the Southern Slope of the Western Caucasus (Russia, NE Black Sea). Correlation with regional and standard planktonic foraminiferal zones / Zakrevskaya, Federica (Vernadsky State Geological Museum RAS) ; Stupin, S. (Geological Institute RAS) ; Bugrova, E.M. (Karpinsky All-Russian Geological Research Institute (VSEGEI))
The biostratigraphic analysis of two Eocene (Upper Ypresian-Lower Bartonian) sections located on the Southern Slope of the Western Caucasus (Inal and Loo sections in the Tuapse and Sochi districts, respectively) was carried out using planktonic and larger foraminifera. [...]
2009 - 10.1344/105.000000277
Geologica acta, Vol. 7, Núm. 1-2 (Març-Juny 2009) , p. 259-279  
17.
16 p, 2.0 MB Integrated calcareous nannofossil biostratigraphy and magnetostratigraphy from the uppermost marine Eocene deposits of the southeastern Pyrenean foreland basin : evidences for marine Priabonian deposition / Cascella, Antonio (Istituto Nazionale di Geofisica e Vulcanologia (INGV)) ; Dinarès-Turell, Jaume (Istituto Nazionale di Geofisica e Vulcanologia (INGV))
An integrated magneto-biostratigraphic study, based on calcareous nannofossils, was carried out on the Eocene uppermost marine deposits of the southeastern Pyrenean foreland basin. The study was performed along six sections of the upper portion of Igualada Formation, cropping out in the Vic area. [...]
2009 - 10.1344/105.000000282
Geologica acta, Vol. 7, Núm. 1-2 (Març-Juny 2009) , p. 281-296  
18.
13 p, 915.0 KB Paleogene floral assemblages around epicontinental seas and straits in Northern Central Eurasia : proxies for climatic and paleogeographic evolution / Akhmetiev, Mikhail A. (Geological Institute RAS) ; Beniamovski, Vladimir N. (Geological Institute RAS)
Paleogene connection of Tethyan and Paleoarctic water masses and biotas was largely enhanced by a N-S trending epicontinental seaway in northern Central Eurasia, which extended from the Aral Sea to the Amerasian deep basin of the Paleoarctic. [...]
2009 - 10.1344/105.000000278
Geologica acta, Vol. 7, Núm. 1-2 (Març-Juny 2009) , p. 297-309  

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