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Wyszukujesz frazę "Tatra mountains" wg kryterium: Temat


Wyświetlanie 1-3 z 3
Tytuł:
The Little Ice Age in the High Tatra mountains
Autorzy:
Kotarba, Adam
Powiązania:
https://bibliotekanauki.pl/articles/2027035.pdf
Data publikacji:
2006
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
geomorphic events
climate change
landform evolution
Tatra Mountains
Opis:
Cli mate de te rio ra tion of the Lit tle Ice Age was mani fested in the most spec tacu lar way in the gla ci ated high moun -tains, but it should also be ana lysed in term of a cli matic con cept. Spa tial varia tion in LIA cli mate is il lus trated also in non- glaciated ar eas of the North ern Hemi sphere in a broader con tex. Ex treme cli matic events were forc ing fac tors for moun tain slope de for ma tion by geo mor phic pro cesses in the High Ta tra Moun tains. The old chroni cles, li che no met ric dat ing of land forms and la cus trine sedi ments are used to de ter mine the be gin ning of “Lit tle Ice Age – type events” (about AD 1400) and its end (about AD 1920). Dur ing this time span the set of cli matic con di tions re spon si ble for trig - ger ing high- energy geo mor phic pro cesses was rec og nised. The cata strophic hy dro me te oro logi cal events were con centrated in cer tain pe ri ods. Clus ter ing of weather anoma lies and natu ral dis as ters re sult ing from them are dis cussed in the pa per.
Źródło:
Studia Quaternaria; 2006, 23; 47-53
1641-5558
2300-0384
Pojawia się w:
Studia Quaternaria
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Jurassic–Cretaceous transition in the High-Tatric succession (Giewont Unit, Western Tatra Mts, Poland): integrated stratigraphy and microfacies
Autorzy:
Lodowski, Damian Gerard
Pszczółkowski, Andrzej
Wilamowski, Andrzej
Grabowski, Jacek
Powiązania:
https://bibliotekanauki.pl/articles/2023960.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
microfossils
rock magnetism
carbon isotopes
Western Carpathians
Tatra Mountains
mikroskamieniałości
skała magnetyczna
izotopy węgla
Karpaty Zachodnie
Tatry
Opis:
Herein are presented the results of detailed bio - (calcareous dinocysts, calpionellids, foraminifers, saccocomids) and chemostratigraphic (δ13C) studies combined with high-resolution microfacies, rock magnetic and gamma-ray spectrometry (GRS) investigations performed on the upper Kimmeridgian-upper Valanginian carbonates of the Giewont succession (Tatricum, Giewont and Mały Giewont sections, Western Tatra Mountains, Poland). The interval studied covers the contact between the Raptawicka Turnia Limestone (RTL) Fm. and the Wysoka Turnia Limestone (WTL) Fm. Their sedimentary sequence is composed of micrites, pseudonodular limestones, cyanoid packstones, lithoclastic packstone and encrinites. A precise correlation with the previously published Mały Giewont section is ensured by biostratigraphy, rock magnetic and GRS logs. The methodology adopted has enabled the recognition of two stratigraphic discontinuities, approximated here as corresponding to the latest Tithonian-early (late?) Berriasian and the early Valanginian. The hiatuses are evidenced by biostratigraphic data and the microfacies succession as well as by perturbations in isotopic compositions and rock magnetic logs; they are thought to result from a conjunction of tectonic activity and eustatic changes. A modified lithostratigraphic scheme for the Giewont and the Osobita High-Tatric successions is proposed. The top of the RTL Fm. falls in the upper Tithonian, where cyanoid packstones disappear. At the base of the WTL Fm. a new Giewont Member is defined as consisting of a basal lithoclastic packstone and following encrinites.
Źródło:
Acta Geologica Polonica; 2022, 72, 1; 107--135
0001-5709
Pojawia się w:
Acta Geologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Neptunian dykes penetrating the Lower Jurassic Dudziniec Formation in the autochthonous High-Tatric succession, Tatra Mountains, Western Carpathians, Poland
Autorzy:
Łuczyński, P.
Jezierska, A.
Powiązania:
https://bibliotekanauki.pl/articles/139207.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
neptunian dykes
Dudziniec Formation
Lower Jurassic
High-Tatric Succession
Tatra Mountains
dajki neptuniczne
formacja Dudzińca
jura dolna
Tatry
Opis:
The Lower Jurassic to Aalenian carbonate-clastic Dudziniec Formation exposed in the autochthonous unit of the Tatra Mountains (Kościeliska Valley) hosts neptunian dykes filled with various deposits. The development of the fissures took place in multiple stages, with the same fractures opening several times, as is indicated by their architecture, occurrence of internal breccias and arrangement of the infilling sediments. Various types of internal deposits were derived in a different manner and from different sources. Fine carbonate sediments, represented by variously coloured pelitic limestones, calcilutites and fine calcarenites, most probably come from uplifted and corroded carbonate massifs (possibly from the allochthonous units of the High-Tatric succession). Products of weathering, both in dissolved form and as small particles, were washed into the sedimentary basin of the autochthonous unit, and redeposited within the dykes. The sandy varieties of the infillings, represented by red, ferruginous calcareous sandstones, come directly from the host rocks or from loose sediments present on the sea bottom at the time of fracturing. The most probable age of the infilling sediments is Sinemurian to Pliensbachian. The occurrence of dykes of this age is yet another feature confirming that the sedimentary development of the Lower Jurassic sandy-carbonate facies in the autochthonous unit was strongly influenced by synsedimentary tectonic activity, such as block-faulting.
Źródło:
Acta Geologica Polonica; 2018, 68, 4; 555-570
0001-5709
Pojawia się w:
Acta Geologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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