Wyniki wyszukiwania - BazTech

1

Provenance of quartz debris in the Central Western Carpathians at the end of the Triassic, as indicated by cathodoluminescence colours

Vďačný Marek, Michalík Josef

Acta Geologica Polonica

|

2023

|

Vol. 73, no. 1

103--114

EN

Lithic fragments including quartz grains occur infrequently in the shallow-marine limestone sequence of the Fatra Formation deposited in the tensional intra-shelf depression of the Central Western Carpathians during the Rhaetian. Nevertheless, their study can bring data answering questions of sources, palaeogeodynamic arrangement, and processes at the end of the Triassic. In this study, we examined optically the cathodoluminescence (CL) colours of single quartz grains from the Kardolína section (Tatra Mts, Slovakia). These colours reveal a dominance of grains derived from regionally metamorphosed and plutonic rocks. Grains of hydrothermal and pegmatite origin are less frequent. Some of the quartz grains show recycled cement rims suggesting at least a second cycle origin. This sedimentary basin was situated near to the passive margin formed by the Variscan consolidated terrains of the Vindelician Highlands. Our study of the CL colours of quartz grains contributes to the elucidation of the nature of the rocks of the vanished Vindelician mountain belt.

2

Wzbogacenie w REE utworów osadowych w wybranych rejonach obrzeżenia mezozoicznego Gór Świętokrzyskich : obiecujące dane wstępne i potrzeba dalszych badań

Mikulski Stanisław Z., Brański Paweł, Pieńkowski Grzegorz, Małek Rafał, Zglinicki Karol, Chmielewski Andrzej

Przegląd Geologiczny

|

2021

|

Vol. 69, nr 6

379--385

EN

The main task of research was a quantitative and qualitative identification of rare earth elements within various Mesozoic sediments in the surroundings of the Holy Cross Mountains. Over 100 samples from archive boreholes, outcrops and mining waste were analysed using modern methods, like portable XRF, geochemical analysis (ICP-MS), electron microprobe and SEM. Results show enrichments of REE concentrations in sedimentary rock samples from the Niektań PIG-1 borehole (LREE up to 0.95%), Miedary outcrop (LREY up to 0.4%) and Lower Cretaceous phosphorites from mining waste in Chałupki and Annopol (LREE ~0.2%). Further investigation is strongly recommended in order to explain the distribution of REE in the study areas.

3

Portal prezentujący kościonośny kajper Górnego Śląska w świetle wyników grantu N307 11703

Racki G.

Przegląd Geologiczny

|

2017

|

Vol. 65, nr 5

275--281

EN

The major goal of the project “The evolution of terrestrial environments of the Upper Silesian Keuper as biotopes of vertebrates”, granted for Grzegorz Racki by the Ministry of Science and Higher Education (2009-2013), was an exhaustive, integrated study of the bone-enriched middle Keuper interval in terms of stratigraphy, sedimentology, mineralogy and geochemistry. The new website “Bone-bearing Keuper of the Upper Silesia, southern Poland” (http://www.ing.pan.pl/Keuper/Bone-bearing_Keuper-1.htm)presents in English the results of this project. The significant achievements are only a starting point to a comprehensive presentation of the complex Keuper themes, jointly with an extensive repository of regional literature (above 420 full-texted publications since 1790). In addition, the main results of the grant, as well as diversity of their implications for future studies are summarized herein, with emphasis on controversial geochronological aspects in vertebrate paleontology (how many bone-rich levels?), and in a broad historical context.

4

Formacja grabowska : podstawowa jednostka litostratygraficzna kajpru Górnego Śląska

Szulc J., Racki G.

Przegląd Geologiczny

|

2015

|

Vol. 63, nr 2

103–-113

EN

Lithostratigraphic division of the Upper Silesian Keuper continental succession belongs to abandoned matters, even if newly-discovered sites with unique vertebrate faunas highlight an increasing request to more precise designation of their stratigraphic setting. As a result of multidisciplinary grant and with a guide use of new borehole sections, a major lithostratigraphic unit is formally proposed for the middle Keuper (i.e., above the Schilfsandstein; Stuttgart Formation in Stratigraphische Tabelle von Deutschland, 2002), based on previously inaccurately used unit, Grabowa Formation of Bilan (1976). The re-defined Formation of Variegated Mudstones and Carbonates from Grabowa includes Upper Gypsum Beds and Steinmergelkeuper in traditional scheme from Germany (=Weser and Arnstadt Formations), and generally correlates with the Norian stage. Two bone-bearing horizons (Krasiejów and Lisowice) are placed within the unit, which is completely subdivided in three members: Ozimek (mudstone-evaporate), Patoka (marly mudstone-sandstone) and WoŸniki (limestone).

5

Wstępne wyniki badań górnotriasowej makroflory Lipia Śląskiego, Polska

Wawrzyniak Z., Ziaja J.

Geologia / Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie

|

2009

|

T. 35, z. 3/1

105-106

EN

Upper Triassic macroflora from Lipie Śląskie near Lublin in Poland was investigated. Five different morphological types of cuticulae dispersae were found. One type belongs to Lepidopteris ottonis (Goeppert) Schimper (Pteridospermae), an index species for uppermost Triassic. Other types probably belong to Coniferales e.g. Cheirolepidiaceae.

6

Nowe znalezisko śladów dinozaurów w górnym triasie Tatr

Niedźwiedzki G.

Przegląd Geologiczny

|

2005

|

Vol. 53, nr 5

410--413

EN

New material of dinosaur footprints has been found in the Late Triassic fluvial-lacustrine deposits of the Tatra Mountains, Poland. Footprints discovered in a well-known Rhaetian strata of the Tomanová Formation represent pedal ichnites of Kayentapus sp. and Anomoepus sp. These are the second reported record of dinosaur footprints in the Tatra Mountains.