Wyniki wyszukiwania - Biblioteka Nauki

1

Evidence that the fossil insect trackway Bifurculapes laqueatus Hitchcock, 1858 was made underwater

100%

Getty P. R. , Getty P. R.

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nr 1

2

K−Ar dating of basic intrusions at Bellsund, Spitsbergen, Svalbard

100%

Birkenmajer K. , Pécskay Z. , Krajewski K. P. , Lorenc M. W. , Birkenmajer K. , Pécskay Z. , Krajewski K. P. , Lorenc M. W.

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nr 1

3

Ichnofossil assemblages and palaeosols of the Upper Triassic Chinle Formation, south-eastern Utah (USA) : Implications for depositional controls and palaeoclimate

100%

Fischer J. S. , Hasiotis S. T.

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2018

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tom Vol. 88, No. 2

127-- 162

EN

The Upper Triassic Chinle Formation in the Stevens Canyon area in south-eastern Utah represents fluvial, palustrine, and lacustrine strata deposited in a continental back-arc basin on the western edge of Pangea. Previous investigations interpreted a megamonsoonal climate with increasing aridity for the Colorado Plateau towards the end of the Triassic. In this study, we systematically integrate ichnological and pedological features of the Chinle Formation into ichnopedofacies to interpret palaeoenvironmental and palaeoclimatic variations in the north-eastern part of the Chinle Basin. Seventeen ichnofossil morphotypes and six palaeosol orders are combined into twelve ichnopedofacies, whose development was controlled by autocyclic and allocyclic processes and hydrology. Ichnopedofacies are used to estimate palaeoprecipitation in conjunction with appropriate modern analogue latitudinal and geographic settings. In the north-east Chinle Basin, annual precipitation was -1100-1300 mm in the Petrified Forest Member. Precipitation levels were >1300 mm/yr at the base of the lower Owl Rock Member, decreased to -700-1100 mm/yr, and then to -400-700 mm/yr. Two drying upward cycles from -1100 mm/yr to -700 mm/yr occurred in the middle and upper part of the Owl Rock Member. In the overlying Church Rock Member, precipitation decreased from -400 mm/yr at the base of the unit to -25-325 mm/yr at the end of Chinle Formation deposition. Ichnopedofacies indicate monsoonal conditions persisted until the end of the Triassic with decreasing precipitation that resulted from the northward migration of Pangea. Ichnopedofacies in the northeast Chinle Basin indicate both long-term drying of climate and short-term, wet-dry fluctuations.

4

Petroleum processes in the Palaeozoic - Mesozoic strata of the Grobla-Limanowa area (basement of the Polish Carpathians)

100%

Wróbel M. , Kosakowski P. , Więcław D.

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tom Vol. 42, no. 2

185--206

EN

The geochemical characteristics of the Palaeozoic and Mesozoic strata of the basement of the Carpathian Foredeep depicted the Devonian and Carboniferous source rocks as the best source for hydrocarbon generation. Moreover, the Outer Carpathian sequence was geochemically characterized and proved capable of generating hydrocarbons. The oil-source rocks’ correlations indicated that the source of the condensate accumulated in the Łąkta field, while oil in the Grobla field. Maturity modelling identified Devonian source rocks as they reached a late phase of the “oil window” and, locally, even the “gas window”. The Carboniferous source rock was mature enough to start the generation processes. The generation started in the late Carboniferous, both in the Upper Silesian and Małopolska blocks. The main phase of the petroleum processes took place in late Neogene. The expulsion was observed only in the Devonian source rocks, and vertical migration by fault system in both blocks resulted in oil and gas accumulation in the Upper Jurassic carbonates and Upper Cretaceous sandstones. The petroleum modelling indicated the Devonian source for oil and gas fields in the study area. However oil-source rock correlation also suggests the presence of the Carpathian flysch source for hydrocarbons accumulated in the Łąkta field.

5

Jurassic syn-rift and Cretaceous syn-orogenic, coarse-grained deposits related to opening and closure of the Vahic (South Penninic) Ocean in the Western Carpathians – an overview

100%

Plasienka D.

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2012

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tom Vol. 56, No. 4

601--628

EN

Although no undoubted oceanic crustal rock complexes of Penninic affinity participate in the present surface structure of the Western Carpathians, indirect lines of evidence suggest prolongation of the South Penninic-Vahic oceanic tract into the ancient Carpathians. The sedimentary record of both the syn-rift and syn-orogenic clastic deposits reveal their origin between the outer Tatric (Austroalpine) and the inner Oravic (Middle Penninic) margins. The rifting regime is exemplified by the normal fault-related scarp breccias of the Jurassic Borinka Unit in the Male Karpaty Mts., which are characterized by local, gradually denuded source areas. Two other regions provide examples of a contractional regime, both related to shortening and closure of the Vahic oceanic domain. The Belice Unit in the Povazsky Inovec Mts. includes Upper Jurassic-Lower Cretaceous eupelagic, mostly siliceous deposits and a thickening-upwards Senonian sequence of turbiditic sandstones, conglomerates and chaotic breccias. It is inferred that this succession represents the sedimentary cover of oceanic crust approaching a trench, its incorporation in the accretionary complex and finally underthrusting below the outer Tatric margin. In the Oravic units of the Pieniny Klippen Belt, deep-marine conglomerate/breccia bodies with olistoliths indicate collision-related thrust stacking that started from the Maastrichtian (Gregorianka Breccia of the Sub-Pieniny Unit) and terminated with the Lower Eocene Milpos Breccia in the Saris Unit. In addition, a tentative recycling scheme of “exotic” clastic material from mid-Cretaceous conglomerates of the Klape Unit to various Klippen Belt units is outlined. This material is considered to be unrelated to the Vahic oceanic realm and its closure, and likely represents erosional products of more distant orogenic zones.

6

Petrophysical properties of the pre-Miocene rocks of the Outer Zone of the Ukrainian Carpathian Foredeep

100%

Kurovets I. , Prytulka H. , Shyra A. , Shuflyak Y. , Peryt T. M.

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tom Vol. 81, No 3

363-373

EN

The paper summarizes the results of various laboratory studies of core material, including porosity, permeability, lithological-facies and structural and textural characteristics of more than 1,000 samples of Mesozoic and Palaeozoic rocks. The petrophysical parameters of siliciclastic and carbonate rocks are analysed for the total of samples representing different lithologies (limestones vs. sandstones) as well as for particular stratigraphic intervals (Upper and Lower Cretaceous, Upper Jurassic, Middle and Lower Jurassic, and Palaeozoic). The terrigenous rocks with intergranular porosity and fracture-cavernous carbonate rocks of reefal facies form the best reservoir rocks within the Mesozoic. The terrigenous rocks of fractured and fractured-porous type that are controlled by the fault-block tectonics provide the best Palaeozoic and Ediacaran reservoirs.

7

Reservoir properties of the Palaeozoic–Mesozoic sedimentary cover in the Kraków–Lubaczów area (SE Poland)

100%

Kosakowski P. , Leśniak G. , Krawiec J.

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2012

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tom Vol. 82, No. 1

51-–64

EN

During the 50-year-long intense petroleum exploration of the Palaeozoic–Mesozoic basement of the Carpathian Foredeep, more than 20 oil and gas accumulations have been discovered. The basic and most important oil-bearing levels in the Mesozoic section are Oxfordian carbonates and Cenomanian sandstones. The Nosówka, Zalesie, Trzebownisko–Krasne, Cetynia, Uszkowce and Lachowice hydrocarbon accumulations and numerous hydrocarbon shows have been found in the Palaeozoic horizons. This paper is focused on evaluation of reservoir properties of the entire Palaeozoic–Mesozoic basement of the Carpathian Foredeep and marginal part of the Outer Carpathians for finding new reservoir horizons. 558 rock samples from 51 wells in the Kraków–Lubaczów area were analysed. The well log results from 20 wells were additionally used for the assessment of petrophysical properties. The results of porosimetry measurements and well logs varied in all discussed Palaeozoic and Meso- zoic basement horizons of the Carpathian Foredeep. The best reservoir properties were estimated within the Jurassic–Lower Cretaceous carbonate complex. Despite great variability, the carbonate rocks display highest average porosity and good permeability values. The variability of reservoir properties is mostly a result of the character of the reservoir-porous-fracture space. Good reservoir properties were also estimated for the Upper Cretaceous carbonate rocks. However, in most of the analysed wells the potential reservoirs were watered. The Palaeozoic complex displays weaker reservoir properties and they mainly refer only to the Devonian–Lower Carboniferous horizon. The Lower Palaeozoic rocks display weak reservoir properties. Their potential is additio- nally lowered by negligible range of occurrence and a small thickness. Generally, the gas- and oil-bearing pro- perties of the analysed zone can be attributed only to the Jurassic–Cretaceous reservoir horizons. The remaining horizons, especially the Upper Palaeozoic complex, are only supplement to the reservoir potential of the area.

8

Brines from the Mesozoic formations of northern and central Poland as a prospective source of chemical raw materials

100%

Uliasz-Misiak B. , Winid B.

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9

Mezozoiczne pożary – ich rozprzestrzenienie i znaczenie w trakcie zdarzeń globalnych

94%

Marynowski L.

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tom Vol. 60, nr 3

148-154

EN

The present paper summarizes the issues related with occurrence and distribution of wildfires in the Mesozoic. The main focus is put on occurrence of palaeowildfires during the Mesozoic global events, including Permian-Triassic (P/T), Triassic-Jurassic (T/J) and Cretaceous-Palaeogene (C/P) boundary. The other problems are connected with controversies over oxygene curve during Mesozoic, with special emphasis on Jurassic wildfires and theoretical predictions of low concentrations of atmospheric oxygene.

10

Mesozoic gastropods from Siberia and Timan [Russia]. Part 1. Vetigastropoda and Caenogastropoda [exclusive of Neogastropoda]

84%

Kaim A. , Beisel A. L. , Kurushin N. I.

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nr 3-4

241-266

11

Brines from the Mesozoic formations of northern and central Poland as a prospective source of chemical raw materials

84%

Uliasz-Misiak B. , Winid B.

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tom T. 34, z. 2

5--20

EN

Polish brines are highly mineralized and can potentially be used for recovery of selected useful elements such as magnesium and potassium. They also contain a number of other elements, including iodine, bromine, boron, and strontium. The results of the examination of the chemical composition of groundwater from the Mesozoic formations (bromine, iodine, lithium, magnesium, and strontium content) of northern and central Poland were analyzed. The basic statistical parameters of the content of these elements (Br, I, Mg) in brines of the Triassic, Jurassic, and Cretaceous deposits and the content of lithium and strontium in waters of the entire Mesozoic formations were determined. In order to indicate aquifers that are the most suitable for the recovery of bromine, iodine, lithium, magnesium, and strontium, the relationship between concentrations and the depth of retention and dependencies between selected chemical components of these waters were analyzed. It has been found that the mineralization and concentrations of magnesium, bromine, and iodine increase with the age of aquifers, where these waters occur. Triassic waters are the most prospective for bromine and magnesium recovery among all analyzed aquifers. Furthermore, a relationship between the content of bromine, strontium, and magnesium has also been observed. The increase in thecontent of individual elements observed for lithium, strontium, and bromine with the increasing depth indicates a potential abundance of waters occurring at significant depths. The presented analysis is an approximation of the content of bromine, iodine, lithium, magnesium, and strontium; however, it may be the basis for further studies on the perspectives of using brines from the Mesozoic deposits of central and northern Poland as a source of chemical raw materials.

PL

W Polsce występują solanki o wysokich mineralizacjach, które mogą być potencjalnie wykorzystywane do odzysku wybranych pierwiastków użytecznych takich jak np. magnez, potas. Mogą one również zawierać szereg innych pierwiastków, jak np. jod, brom, bor, stront. Przeanalizowano wyniki badań chemizmu wód podziemnych z utworów mezozoicznych z obszaru Polski północnej i środkowej pod kątem zawartości: bromu, jodu, litu, magnezu i strontu. Obliczono podstawowe parametry statystyczne zawartości tych pierwiastków w solankach w utworach triasu, jury i kredy oraz litu i strontu łącznie wodach w utworach mezozoiku. W celu wskazania najbardziej perspektywicznych pięter wodonośnych pod kątem występowania bromu, jodu, litu, magnezu i strontu przeanalizowano zależności pomiędzy stężeniami a głębokością zalegania, a także zależności między wybranymi składnikami chemicznymi tych wód. Stwierdzono wzrost mineralizacji oraz stężeń magnezu, bromu i jodu wraz z wiekiem pięter wodonośnych, w których te wody występują. Spośród analizowanych pięter wodonośnych wody w utworach triasu są najbardziej perspektywiczne pod kątem odzysku bromu i magnezu. Zaobserwowano również zależność między zawartością bromu, strontu i magnezu. Wzrost zawartości poszczególnych pierwiastków obserwowany dla litu, strontu i bromu wraz z głębokością świadczy o potencjalnej zasobności wód występujących na znacznych głębokościach. Przedstawiona analiza ma charakter orientacyjnej prognozy zawartości bromu, jodu, litu, magnezu i strontu (ze względu na ograniczoną liczbę istniejących oznaczeń) może jednak stanowić podstawę dalszych badań nad perspektywicznością wykorzystania wód zasolonych z utworów mezozoiku środkowej i północnej Polski jako źródła surowców chemicznych.

12

Docodonts from the British Mesozoic

84%

Sigogneau-Russell D.

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nr 3

EN

This paper deals with new docodont teeth from the upper Bathonian of Forest Marble, collected by Prof. K.A. Kermack and his team, and from the basal Cretaceous of the Purbeck Limestone Group, collected by P. Ensom. Study of this materialled to the recognition of three new taxa: Borealestes mussettisp. nov. and Krusatodon kirtlingtonensis gen. et sp. nov. from Forest Marble, Peraiocynodon majorsp. nov. from Purbeck; this makes the Bathonian locality the richest (four species) docodont locality so far known. The possible synonymy of Cyrtlatherium–Simpsonodon (Forest Marble) and of Peraiocynodon–Docodon (Purbeck−Morrison) suggested by several authors is discussed. In conclusion, phyletic relationships between the known docodont genera are proposed, based on lower molars.

13

K-Ar dating of basic intrusions at Bellsund, Spitsbergen, Svalbard

67%

Birkenmajer K. , Krajewski K. P. , Pecskay Z. , Lorenc M. W.

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tom 31

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nr 1

3-16

14

A new Early Cretaceous flea from China

67%

Zhang Y. , Shih C. , Rasnitsyn A. P. , Ren D. , Gao T.

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nr 1

15

Evolution and identity of synapsid carpal bones

67%

Kummel S. , Abdala F. , Sassoon J. , Abdala V.

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nr 4

16

An Early Triassic gladius associated with soft tissue remains from Idaho, USA-a squid-like coleoid cephalopod at the onset of Mesozoic Era

67%

Doguzhaeva L. A. , Brayard A. , Goudemand N. , Krumenacker L. J. , Jenks J. F. , Bylund K. G. , Fara E. , Olivier N. , Vennin E. , Escarguel G.

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nr 2

EN

We describe an Olenekian (Early Triassic) “fossil squid” belonging to the oldest complex Mesozoic marine biota collected in the Lower Shale unit of the Lower Triassic Thaynes Group in Idaho, USA. The studied specimen shows a tapered structure embedded in a cylindrical soft body. Morphological, ultrastructural and geochemical features of the specimen suggest that it corresponds to an internally-shelled cephalopod exhibiting a tapered micro-laminated gladius with rachis, narrow median and lateral fields and a large conus; a pair of posterior large fin-supported cartilages and fins; ventral and dorsal mantle band-shape structures, the dorsal one being cartilaginous; mantle patches; a stomach containing undigested arm-hooks and sheet-like pieces of potential flooded ink. Coupled SEM/EDS analyses show that (i) arm-hooks and ink were pseudomorphed by nanoparticles (less than 0.6 mm in diameter) of carbon, (ii) gladius and soft tissues were substituted by granules of calcium phosphate, (iii) cartilage canalicula’s were partially filled with calcium phosphate grains and crystals of Zn- and S-containing minerals. The specimen was hence probably fossilized due to metabolism of P- and C-accumulating bacteria. Based on this specimen, Idahoteuthis parisiana Doguzhaeva and Brayard gen. et sp. nov. and Idahoteuthidae Doguzhaeva and Brayard fam. nov. are erected. This family is characterized by an elongated, cylindrical, dorsally cartilaginous muscular mantle; well-developed, about 0.2 mantle length, rounded anteriorly and acute posteriorly, fin-supported cartilages and similarly shaped two fins at conical mantle termination, and thin slender gladius with narrow median and lateral fields, rachis and breviconic conus. This family assumedly falls in Myopsida (Decabrachia). A streamlined body, large fin-supported cartilages and eroded arm-hooks in the stomach of Idahoteuthis Doguzhaeva and Brayard gen. nov. suggest that this was a maneuverable cannibal predator that dwelled in the subequatorial shallow sea of the west coast of Pangaea.

17

Molar morphology and occlusion of the Early Jurassic mammalia form Erythrotherium parringtoni

67%

Jager K. R. K. , Gill P. G. , Martin T. , Corfe I. J.

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tom 67

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nr 4

18

Census of dinosaur skin reveals lithology may not be the most important factor in increased preservation of hadrosaurid skin

67%

Davis M.

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tom 59

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nr 3

EN

A global census of published records of dinosaur skin from the Mesozoic, cross-referenced against a more detailed lithological dataset from the Maastrichtian of North America, clarifies why most examples of fossilized dinosaur skin come from hadrosaurids. Globally, more published specimens of hadrosaurids exhibit preserved skin than any other major clade of dinosaur. North American Maastrichtian hadrosaurid fossils are 31 times more likely to have skin preserved than coeval dinosaur remains. This does not arise from collection methodology, the large population size of hadrosaurids, or the gross lithology of their depositional environment. The reason that so many hadrosaurid fossils have skin is still elusive, but was likely something intrinsic to hadrosaurids that originated early on in the clade, perhaps the possession of tougher or thicker skin. The database of published examples of fossilized dinosaur skin assembled here will assist the continued development of a much needed common terminology and taxonomic framework for dinosaur skin.

19

A new Mesozoic species of soft-bodied plant beetle (Coleoptera: Dascillidae) from the Early Cretaceous of Inner Mongolia, China with a review of fossil Dascillidae

67%

Jin Z. , Slipinski A. , Pang H. , Ren D.

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nr 3

EN

A new genus, Cretodascillus gen. nov. in the family Dascillidae with a new species C. sinensis sp. nov., is described from the Early Cretaceous Yixian Formation of Inner Mongolia, China. The fossil taxa described in Dascillidae have been critically reviewed and the Upper Triassic Apheloodes Dunstan, 1923 (type species A. obliquum Dunstan, 1923) and Leioodes Dunstan, 1923 (type species L. planum Dunstan, 1923) are removed from Dascillidae to Coleoptera incertae sedis, the Miocene Protoacnaeus Wickham, 1914 (type species P. tenuicomis Wickham, 1914) is transferred to Psephenidae and Miocyphon Wickham, 1914 (type species M. punctulatus Wickham, 1914) to Scirtidae.

20

Middle and Late Jurassic tube-dwelling polychaetes from the Polish Basin: diversity, palaeoecology and comparisons with other assemblages

67%

Slowinski J. , Vinn O. , Jager M. , Zaton M.

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tom 67

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nr 4