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Wyszukujesz frazę "Gonera, M." wg kryterium: Wszystkie pola


Wyświetlanie 1-11 z 11
Tytuł:
Middle Miocene (Early Badenian) Amphistegina (Foraminiferida) from Olimpów (Central Paratethys, Poland)
Autorzy:
Gonera, M.
Powiązania:
https://bibliotekanauki.pl/articles/191948.pdf
Data publikacji:
2012
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
foraminifera
Amphistegina
Middle Miocene
Paratethys
Polska
Opis:
Specimens of Middle Miocene (Early Badenian) Amphistegina from the Polish Carpathians were examined. A section, sampled at the Olimpów quarry, displays chloralgal carbonates, rich in rhodolith nodules. Symbiont-bearing foraminifera (Amphistegina, Elphidium and Asterigerinata) constitute 15–57% of the total foraminifera assemblage. Amphistegina hauerina d’Orbigny, 1846 is the only species of the genus in the deposits studied. The sensitivity of larger foraminifera to water turbulence and light availability was applied in a reconstruction of the community habitat. The diameter and thickness of the Amphistegina tests indicate that the habitat was a zone of low light penetration and weak energy – a palaeoenvironment, similar to that of the modern A. radiata (Hottinger et al., 1993). Changes in the sphericity of the Amphistegina tests reflect a temporal drop of bathymetry in the middle part of the section. This is supported by other environmentally controlled features of the foraminiferal assemblage: the percentages of both planktonic and symbiont-bearing forms, as well as the proportions of robust and flat forms of Elphidium. It is possible that this variation in depth was due to eustatic changes in sea level, caused by Event Mi3 of the Middle Miocene climatic cooling. The spiral diameter of the test was at its lowest value then, indicating that maturity was reached at a faster rate. The period of shoaling offered the best life conditions for Amphistegina in this particular area.
Źródło:
Annales Societatis Geologorum Poloniae; 2012, 82, 2; 151--159
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Globorotaliid intervals of the sub-evaporite Badenian (Middle Miocene) in the Upper Silesia Basin (Central Paratethys, Poland)
Autorzy:
Gonera, M.
Powiązania:
https://bibliotekanauki.pl/articles/2060306.pdf
Data publikacji:
2013
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Middle Miocene
Badenian
foraminifers
Globorotaliidae
Paratethys
Opis:
Globorotaliids of the Skawina Formation (Badenian) come from deposits representing CPN 7 (Orbulina suturalis Zone) and CPN 8 sub-evaporite Wielician (Globigerina druryi–G. decoraperta Zone alias Uvigerina costai Zone) age. There are two taxonomic groups of globorotaliids in the studied material: globoconellids (Globoconella bykovae and G. minoritesta) and jenkinsellids (Jenkinsella mayeri and J. transsylvanica). There are five stratigraphically-rank intervals of these foraminifers prior to the Middle Badenian salinity crisis in Central Paratethys. The investigated Badenian begins with G. bykovae–J. mayeri association followed by the first occurence (FO) of J. transsylvanica. The closing member of the CPN 7 biozone is the G. bykovae–J. transsylvanica assemblage. The jenkinsellids disappear during CPN 7: J. mayeri first and J. transsylvanica after. Since the base of CPN 8 in situ jenkinsellids have not been noted in the Badenian deposits. The CPN 8 begins with a stratigraphic interval barren of globorotaliids (biozone IIC in the Polish Paratethys). It is followed by episodic appearances of globoconellids (G. bykovae and G. minoritesta) in the sub-evaporite Wielician (IID biozone in Poland). G. minoritesta has been found in only one case so far. The globorotaliid stratigraphic units are distinct and well-correlated with changes in climate and the circulation of water masses in Paratethys. This study provides additional data on Mi3 in Paratethys. It documents a cryptic cooling event in the late Orbulina suturalis Zone (mid CPN 7) located at the late IIA–B assemblage (alias upper lagenide zone) in regional biostratigraphic scale. The event is recorded by J. transsylvanica Acme, matching with circa 1‰VPDB δ18O positive excursion. The event must have resulted in a considerable sea level drop – a trigger of the Moravian ecosystem demolition in the Paratethys environment.
Źródło:
Geological Quarterly; 2013, 57, 4; 757--768
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Coiling direction in Middle Miocene globorotaliids (Foraminiferida) : a case study in the Paratethys (Upper Silesia Basin, Poland)
Autorzy:
Gonera, M.
Powiązania:
https://bibliotekanauki.pl/articles/2059350.pdf
Data publikacji:
2018
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Middle Miocene
Paratethys
foraminifera
globorotaliid
coiling direction
Opis:
The paper deals with sub-evaporite Badenian deposits (Middle Miocene, Paratethys) that display a sudden appearance of globorotaliid taxa showing preferences in the taxonomic set and coiling direction. An interval of sinistrally coiled Jenkinsella mayeri with proportionally coiled Globoconella bykovae is at the bottom of the studied sequence. It is followed by an interval of proportionally coiled Jenkinsella transsylvanica. Proportionally coiled Globoconella bykovae with a small number of proportionally coiled Jenkinsella transsylvanica are at the top of the Moravian (CPN 7) substage (Orbulina suturalis alias Lagenidae Zone). The sub-evaporite part of the Wielician (CPN 8) substage (Uvigerina costai alias Spiroplectammina Zone) began with a globorotaliid-barren interval (IIC biozone). It is followed by biozone IID displaying three globorotallid peaks amongst globorotallid-barren deposits. Only globoconellas are present in all these three events. Proportionally coiled Globoconella bykovae appeared first. It is followed by proportionally coiled Globoconella minoritesta and sinistrally coiled Globoconella bykovae at the end of the biozone IID. Coiling preferences of globorotaliids have been compared to changes in the hydrographic regime unfolding during the CPN 7 and CPN 8 in the studied area of the Paratethys. The study discovers that the coiling of globorotaliids responded selectively to the hydrographic changes. Globoconella bykovae is highly opportunistic and can tolerate considerable temperature changes. Specimens of this taxon persist to coil proportionally during the sub-evaporite Badenian, except for the shift to sinistral coiling just prior to the Wielician evaporites. Sinistrally coiled Jenkinsella mayeri is the most sensitive to hydrographic changes. This taxon retreated at the onset of the temperature drop during the mid-Moravian cryptic cooling. This cooling is marked by the new jenkinsellid occurrence – proportionally coiled Jenkinsella transsylvanica. Proportionally coiled Globoconella minoritesta is present in the middle of the IID globorotaliid peaks. The globorotaliid coiling data, presented in this paper, has been calibrated to the global stratigraphy. The integrated data (foraminifera, nannofossils, oxygen and carbon stable isotopes, radiometric measurements) supports the view that the CPN 7/CPN 8 boundary is coeval to the Langhian/Serravalian one. In the Polish part of the Carpathian Foredeep, the boundary runs within the Skawina Formation.
Źródło:
Geological Quarterly; 2018, 62, 1; 155--171
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Palaeoecology of the Middle Miocene foraminifera of the Nowy Sącz Basin (Polish Outer Carpathians)
Autorzy:
Gonera, M.
Powiązania:
https://bibliotekanauki.pl/articles/2060628.pdf
Data publikacji:
2012
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Polska
Paratethys
Middle Miocene
foraminifera
palaeoecology
Opis:
Foraminifera from newly exposed outcrop sections located in a Middle Miocene piggyback basin of the Outer Carpathians Nowy Sącz Basin indicate an environment of normal saline waters on the inner shelf and a temperature not lower than 18oC. The area was ideal for the proliferation of: Miliolina spp., Elphidium crispum, Ammonia beccarii and Pararotalia. The habitat below the sediment surface was not colonised by foraminifera. Planktonic foraminifera are absent. The age of the population studied is referred based on the climate-related data, to the Orbulina suturalis Zone of the Miocene Climate Optimum.
Źródło:
Geological Quarterly; 2012, 56, 1; 107-116
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Stan geoochrony konserwatorskiej w parkach krajobrazowych Polski
Geoconservation of landscape parks in Poland
Autorzy:
Gonera, M.
Powiązania:
https://bibliotekanauki.pl/articles/2074755.pdf
Data publikacji:
2010
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
stan geoochrony konserwatorskiej
parki krajobrazowe Polski
geoconservation
landscape parks in Poland
Opis:
The idea of establishing protected landscape parks was put forward in Poland 50 years ago. The result was fairly quick expansion in the number of protected landscape areas, up to 120 by now. Figures 1 and 2 show the progress in creation of such areas and their geographical distribution. The major goals and approach in management of the landscape parks were changing in time. The following stages may be distinguished in the landscape parks policy: protection of environment followed by landscape protection, protection of nature diversity and currently - biodiversity conservation (in accordance with Natura 2000 prerogatives). Also "geodiversity" make it necessary to treat the existing landscape parks as the potential areas of geoparks. One of key requirements which should be met by geoparks is a network of geological sites subjected to legal protection. These sites are the "backbone" of geopark. The paper presents situation in the Polish landscape parks with regard of this requirement by the end of the year 2008. At that time the number of geoconservation objects selected and categorized in 75 of those parks reached 551 (Fig. 3). Table 1 shows the typology of geological sites in relation to their importance for the Earth sciences The objects of the category A are the most valuable for geology whereas the remaining ones are mainly of geomorphological (B) and hydrological (C) value. Tables 2, 3 and 4 show the current state of conservation of geological sites in Polish landscape parks. In that presentation the area of Poland was divided into two parts with the line of extent of the Warta Glaciation as the boundary (Fig. 2). The Pleistocene deposits predominate north of that boundary whereas rocks of older stratigraphic units crop out at the surface south of it.
Źródło:
Przegląd Geologiczny; 2010, 58, 12; 1139-1146
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Rewitalizacja stanowisk geologicznych na obszarach wiejskich – przykład Wyżyny Miechowskiej
Revitalization of the geological sites in rural areas–case study of the Miechów Upland
Autorzy:
Gonera, M.
Powiązania:
https://bibliotekanauki.pl/articles/401038.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
stanowisko geologiczne
obszary wiejskie
rewitalizacja
kopalnictwo odkrywkowe
geological site
rural areas
revitalization
opencast mining
Opis:
W badaniach chronologii oraz przebiegu całokształtu procesów, jakie utworzyły obecny stan litosfery, geologia bazuje na reperowych profilami geologicznych dla poszczególnych rejonów Ziemi – stratotypach. Są to szczególne, wyselekcjonowane, profile litostratygraficznymi w terenie. W sensie fizycznym są to obiekty przyrody nieożywionej spełniające określone warunki reprezentatywności przebiegu zjawisk w historii geologicznej danego obszaru oraz będące wzorcami i punktami odniesienia do wszelkich geologicznych porównań. Dzięki stratotypom możliwa staje się korelacja (komunikacja) badań dziejów geologicznych pomiędzy poszczególnymi częściami świata. Zbadano fizyczny stan stratotypów miocenu (jednej z najszerzej reprezentowanych epok geologicznych obszaru Polski) na Wyżynie Miechowskiej – obszarze o znaczącej tradycji badań geologicznych, posiadającej obecnie status regionu o wybitnie wiejskiej gospodarce. Z przeprowadzonych badań terenowych wynika, że żaden spośród stratotypów miocenu nie znalazł się pośród realizacji Ustawy o ochronie przyrody. Te formy dziedzictwa przyrody nieożywionej uległy fizycznej degradacji oraz wyparciu ze świadomości lokalnych społeczności. Wyjątkiem okazał się stratotyp zlokalizowany w miejscu pozyskiwania kopalin. Lokalny zakład wydobywczy okazał się najsprawniejszym rozwiązaniem dla funkcjonowania i dostępności stratotypów. Ten właśnie rodzaj przemysłu i powiązany z nim niewielki zakład przerabiający surowiec – okazały się najskuteczniejszym mechanizmem wiążącym naukę (podstawowe badania geologiczne) i rewitalizację obszarów wiejskich. Ten kierunek rewitalizacji odbywa się poprzez nieinwazyjne dla środowiska naturalnego i zgodne z zasadami społecznej odpowiedzialności biznesu (CSR) pozyskiwanie surowca mineralnego dla wytwarzania unikatowych, regionalnych, produktów.
The Miechów Upland is one of the meaningful areas for the study of the Miocene geology. Middle Miocene (Karpatian to Early Sarmatian) sediments have been recognised there. The deposits are highly variegated in regard to lithology. Brackish and fresh-water Karpatian sediments are followed by different rocks of broad marine transgression during Moravian, and finally by the early Sarmatian ones. Depending on the prominent paleo relief of the Cretaceous basement, varieties of sediments have been deposited during this time. Marly claystones, silts, sands with mudstone intercalations and detrital limestones (Rhodolith bioherms) are the most common. Moreover, the Middle Badenian sulphate evaporates are found in the Miechów Upland. State of the Miocene stratotype outcrops has been checked in this area. The access to most of them is impossible because of the soil and vegetation coverage within the abandoned opencasts. The only exception is a small, still operational silt-pit of the local brick-yard. It turned out that the two interests can be combined, effectively animating the local economy and warranting the access to stratotype section. Due to fertile Pleistocene loess soils, the region is extensively used by agriculture, but marred by relevant economic and social problems. Small-scale opencast mining, accompanied with innovative manufacturing of the resources (silts, clays, sands and carbonates) is proposed. Modern mining strongly conforms to ecological engineering principles and Corporate Social Responsibility (CSR) standards. Therefore, it poses no threat to the state of soils and the agricultural character of the region. The development of unique, regional products on the basis of local resources (e.g. unique, regional decorative stones or pottery) is worth to be considered by the LEADER program activities. The initiation of innovative mining enterprises and handcraft seems to be a good strategy to improve the local economy and a promising solution to highlight the image of country. With this approach, the revitalization stratotype outcrops and the economic development of rural areas by mineral business it will be possible, parallel to the ongoing agricultural circumstances and benefits.
Źródło:
Inżynieria Ekologiczna; 2017, 18, 4; 168-175
2081-139X
2392-0629
Pojawia się w:
Inżynieria Ekologiczna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Isotopic events in the Early/Middle Badenian (Miocene) of the Upper Silesia Basin (Central Paratethys)
Autorzy:
Gonera, M.
Bukowski, K.
Powiązania:
https://bibliotekanauki.pl/articles/2059404.pdf
Data publikacji:
2012
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Middle Miocene
Wielician
Paratethys
foraminifera
stable isotopes
Opis:
Middle Miocene foraminifera from the Skawina Formation of the Upper Silesia Basin have been analysed. The stable oxygen and carbon isotope signatures in Globigerinoides quadrilobatus (shallow pelagic), Globigerina bulloides (deeperpelagic) and Uvigerina spp. (benthic) tests show a temporal pattern of changes in the sections studied. The foraminiferal assemblage biozones of the Badenian that were identified earlier, on the basis of taxonomic composition, correspond to changes in the foraminiferal ẟI8O and ẟI3C values. The CPN7/CPN8 transition - as the Moravian/Wielician border - is marked by distinct isotopic events: a ẟ18O increase (IIAB/IIC boundary) followed by a ẟ13C decrease (IIC/IID boundary).
Źródło:
Geological Quarterly; 2012, 56, 3; 561--568
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Foraminifera in slump deposits of the Badenian (Middle Miocene) Green Stratified Salt in Wieliczka, Poland
Autorzy:
Gonera, M.
Bukowski, K.
d'Obyrn, K.
Wiewiórka, J.
Powiązania:
https://bibliotekanauki.pl/articles/2060503.pdf
Data publikacji:
2012
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Middle Miocene
Paratethys
salinity crisis
foraminifera
slump processes
Opis:
Taxonomic, quantitative and isotopic study of foraminifera from mudstone and claystone xenoliths incorporated into slump facies of the Stratified Salt Member of the Wieliczka deposit shows that the majority of xenoliths represent the CPN 8 biozone (Wielician substage, Badenian, Middle Miocene). The share of the CPN 7 biozone is minor; it was recorded in two of 26 samples analysed. The source area of xenoliths was the basinal part of the Carpathian Foredeep, located far off the shoreline (shallow-water taxa are not present in the samples); it represents the upper bathyal zone, in oxygenated conditions. Inbenthic, eutrophic and opportunistic foraminifers dominate the benthic environment of the CPN 8 span of time. Increased d18O values of the Globigerina bulloides tests (from +1.7‰ in CPN 7 to +2.3‰ in CPN 8 sediments) was due to the change from the Middle Miocene Climate Optimum to the Middle Miocene Climate Transition at the CPN 7/CPN 8 boundary. This palaeoclimate event is the marker of the Moravian/Wielician chronostratigraphic boundary in the Central Paratethys. The Wielician shows the distinct taxonomic reduction of the Moravian planktonic foraminifera and includes the Globigerina bulloides Acme.
Źródło:
Geological Quarterly; 2012, 56, 4; 869--880
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wielician (Middle Badenian) foraminifers from the stratotype area : Wieliczka Salt Mine, Poland (Paratethys, Middle Miocene)
Autorzy:
Gonera, M.
Wiewiórka, J.
d'Obyrn, K.
Bukowski, K.
Powiązania:
https://bibliotekanauki.pl/articles/2060050.pdf
Data publikacji:
2014
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Middle Miocene
foraminifera
Wieliczka Salt Mine
Middle Badenian
Wielician
Opis:
The most abundant benthic foraminifers recorded in the Wielician salt-enclosed xenoliths are: Bulimina spp., Uvigerina spp., Valvulineria complanata, and Cibicides pseudoungerianus. The predominant taxon in the planktonic assemblage is Globigerina bulloides with a median 98.9% in biozone IIC and 89.1% in the later IID. The IIC assemblage differs from the IID one in both taxon composi tion and abundance. The most pronounced differences are those revealed by Valvulineria complanata counts, number of benfhic taxa and the plankfonic/benthic (P/B) rafio. Pseudotriplasia minuta (one of the Wielician index taxa) occurs only in the IID biozone, present in 16 among 28 samples. There is a noticeable difference in sur- face sculpture morphology pattern in the predominant Bulimina and Uvigerina taxa in the IIC versus the IID biozones. There are smooth (Bulimina elongata) and weakly striate (Uvigerina semiornata plexus) forms in the IIC biozone, foll owed by heavily costate (Bulimina striata) and spinose-pustu l ate (Uvigerina orbignyana plexus) forms in the IID. Globigerina druryi and G. decoraperta- the CPN 8 planktonic index taxa - had not been found in the material studied. Globigerinita uvula is un- usually common in the samples studied. The samples analysed display an abundance of Globigerina bulloides typical of the sub-evaporite Wielician. Hence the studied Wielician stratotype area supports the thesis of the Globigerina bulloides Acme as the valid name designation for the substage.
Źródło:
Geological Quarterly; 2014, 58, 3; 427--438
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Geoochrona konserwatorska profilu wzorcowego warstw chodenickich (miocen zapadliska przedkarpackiego)
Geoconservation of the Chodenice Beds stratotype (Miocene of the Carpathian Foredeep)
Autorzy:
Gonera, M.
Wiewiórka, J.
Charkot, J.
Bukowski, K.
Mikulski, D.
Dudek, K.
Powiązania:
https://bibliotekanauki.pl/articles/2074831.pdf
Data publikacji:
2011
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
warstwy chodenickie
stratotypy
geoochrona konserwatorska
Chodenice Beds
stratotype
geoconservation
Opis:
Stratotypes are indispensable to the correct usage of litho- and chronostratigraphy units. Stratotypes sustainability is the crucial factor. As the sustainability of the Chodenice Beds stratotype became in risk the searching for the substitution site of this type section had been undertaken. Micropaleontological and petrological hallmarks of the unit have been considered and perfectly analogical deposits have been found near by – in the Bochnia Salt Mine. Two of the mine corridors where Chodenice Beds crop out have been selected. The sites are protected as elements of the geocoservation net of the Bochnia Salt Mine, nominated as geological site no. 4 and 21.
Źródło:
Przegląd Geologiczny; 2011, 59, 10; 671-677
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Badenian tuffite levels within the Carpathian orogenic front (Gdów-Bochnia area, Southern Poland): radio-isotopic dating and stratigraphic position
Autorzy:
Bukowski, K.
de Leeuw, A.
Gonera, M.
Kuiper, K. F.
Krzywiec, P.
Peryt, D.
Powiązania:
https://bibliotekanauki.pl/articles/2059026.pdf
Data publikacji:
2010
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Miocene
Badenian
Carpathian Foredeep
tuffites
dating
Opis:
We present new results of investigation of Middle Miocene Badenian tuffite levels exposed in Southern Poland within the Gdów "embayment" area (tuffites from Wiatowice, upper part of the Skawina Beds, foraminiferal biozone IIg) and compare them with the well known and extensively described Bochnia Tuffite level at Chodenice near Bochnia (upper part of the Chodenice Beds, foraminiferal biozone IIIA). The 4039
Źródło:
Geological Quarterly; 2010, 54, 4; 449-464
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-11 z 11

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