Temat: Viséan - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Early Visean bryozoans from the Shishtu II Member, Shishtu Formation, central Iran
Autorzy:: Tolokonnikova, Zoya
Yazdi-Moghadam, Mohsen
Powiązania:: https://bibliotekanauki.pl/articles/94713.pdf
Data publikacji:: 2013
Wydawca:: Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:: Bryozoa
Visean
Iran
mszywioły
Wizen
Opis:: Four bryozoan species are described from the upper member (Shishtu II) (Visean, Early Carboniferous=Mississippian) of the Shishtu Formation of central Iran: Nikiforovella ulbensis Nekhoroshev, 1956, Nicklesopora elegantulaformis (Nekhoroshev, 1956), Primorella cf. iranica Gorjunova, 2006, and Nikiforopora intermedia (Nikiforova, 1950). This Visean assemblage shows close palaeogeographical affinities of Iran with Kazakhstan and Russia (eastern Transbaikalia, Kurgan region).
Źródło:: Geologos; 2013, 19, 4; 291-299
1426-8981
2080-6574
Pojawia się w:: Geologos
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Brachiopod fauna from uppermost Visean (Mississippian) mud mounds in Derbyshire, UK
Autorzy:: Carniti, A.P.
Della Porta, G.
Banks, V.J.
Stephenson, M.H.
Angiolini, L.
Powiązania:: https://bibliotekanauki.pl/articles/31341371.pdf
Data publikacji:: 2022
Wydawca:: Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:: brachiopod
Brachiopoda
fauna
Visean
Mississippian
mud mound
Derbyshire county
Brigantian
United Kingdom
Źródło:: Acta Palaeontologica Polonica; 2022, 67, 4; 865-915
0567-7920
Pojawia się w:: Acta Palaeontologica Polonica
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: A putative Tournaisian and Visean volcanic-sedimentary succession in the Lublin Basin, SE Poland: depositional processes, petrological characteristics and sequence stratigraphy
Autorzy:: Waksmundzka, Maria I.
Kozłowska, Aleksandra
Pańczyk, Magdalena
Powiązania:: https://bibliotekanauki.pl/articles/1835593.pdf
Data publikacji:: 2020
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: Tournaisian
Visean
Lublin basin
sequence stratigraphy
petrography
cyclothems
volcanic source areas
turnej
wizen
niecka lubelska
stratygrafia sekwencji
petrografia
cyklotemy
Opis:: The aim of this study was to establish the stratigraphic extent of a putative Tournaisian Stage within the Carboniferous succession in the Lublin Basin. The oldest part of the succession, known as the Huczwa Formation and comprising depositional sequences 1-4, was investigated based on lithofacies analysis, sequence stratigraphy and petrographic studies. The article provides descriptions of depositional sequences, parasequences (cyclothems) and lithofacies that were formed in a range of environments (elements of depositional architecture) and as a result of volcanic processes - lava and pyroclastic eruptions and chemical weathering of their products. Correlation of the sequence stratigraphy to the West European and global Carboniferous chronostratigraphic divisions, as well as to the Khoriv suite in the Lviv-Volyn Basin in adjacent Ukraine, indicates a putative late Tournaisian age for sequence 1, and a late Visean age for sequences 2-4. There is a stratigraphic gap between sequences 1 and 2, spanning probably the uppermost Tournaisian and the lower and middle Visean. The upper Tournaisian is represented by the FRST-LST deposits of sequence 1, comprising mainly volcaniclastic conglomerates and sandstones developed in braided-river channels and incised valleys with hyperconcentrated flow processes. These deposits are represented by polymictic paraconglomerate and lithic/sublithic/subarkose arenites or sublithic wackes, and contain predominantly grains of acidic and alkaline volcanic and igneous rocks. This material probably came from the Łuków-Wisznice Elevation and the Volynian Polesia region, located to the NE and E of the Lublin Basin. In the uppermost part of sequence 1, volcanic rocks and tuffs appear which developed during the activity of at least three volcanic cones in the Lublin Basin. The volcanoes were the source of alkaline lavas in the central and SW areas of the basin, and of acidic lavas in the SE area, previously undescribed. The Visean sequences 2-4 consist of the FRST-LST sediments deposited within incised valleys. The TST and HST deposits accumulated mainly in a shallow ramp-type carbonate shelf, shallow clayey shelf and deltaic environments.
Źródło:: Acta Geologica Polonica; 2021, 71, 3; 305-344
0001-5709
Pojawia się w:: Acta Geologica Polonica
Dostawca treści:: Biblioteka Nauki

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