Browsing NGU Open Archive by Author "Siedlecka, Anna"
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Analyses of major element composition of the Neoproterozoic (Upper Riphean and Vendian) sedimentary rocks of the Varanger Peninsula, Northern Norway.
Siedlecka, Anna (NGU-Rapport (96.134), Report, 1996)189 samples collected from 21 Neoproterozoic sedimentary formations of theVaranger Peninsula, North Norway. The samples were analysed for major elementsat the Institute of Precambrian Geology and Geochronology in St. ... -
Båtsfjord. Berggrunnskart; Båtsfjord; 24363; 1:50 000; trykt i farger;
Siedlecka, Anna (Map, 1987) -
Bedrock Geology of the Porsanger - Tana Region, Finnmark: An Excursion Guide.
Roberts, David; Siedlecka, Anna (NGU-Rapport (92.317), Report, 1992)Thirty-one selected localities are brefly described along a traverse fromPorsangerfjorden to Tanafjorden. The localities provide a general impressionof representative rock types and their deformation in the Gaissa and ... -
Examination of samples of Neoproterozoic rocks from Central Timans for microfossil contents
Siedlecka, Anna (NGU-Rapport (96.115), Report, 1996)Frie emneord: Late Proterozoic Neoproterozoic Thirteen samples of Neoproterozoic rocks cropping out in the Vymskaya ridge have been collected for biostratigraphic work. The sampled sections, reaching a thickness of c.3000 ... -
Finnmark fylke. Berggrunnsgeologi Finnmark fylke M 1:500 000; trykt i farger
Roberts, David; Siedlecka, Anna (Map, 1996)Beskrivelsen finnes på kartet. -
Forekomster av tillitt på nordsiden av Atnsjøvinduet, Syd-Norge.
Ilebekk, S.; Siedlecka, Anna (NGU (373), Journal article, 1982)A previously reported tillite-like conglomerate occurring on the northern side of the Atnsjø Window rests with an erosional contact on Precambrian granite and gabbro and is overthrust by fieldspathic metasandstones of the ... -
Geologiske og geofysiske undersøkelser på Ringerike og Krokskogen
Beard, Les Paul; Rønning, Jan S.; Siedlecka, Anna; Nordgulen, Øystein; Lutro, Ole (NGU-Rapport (97.153), Report, 1997)NGU har på oppdrag for Jernbaneverket Region Sør utført geologiske og geofysiske undersøkelser i området mellom Sandvika og Hønefoss. Rapporten gjør kort rede for bakgrunnen for prosjektet og beskriver hvilke undersøkelser ... -
Geology of the Båtsfjordfjellet drillcore, Varanger Peninsula, Finnmark, northern Norway
Siedlecka, Anna; Roberts, David (NGU Bulletin (452), Journal article, 2012)Logging of >800 metres of drillcore from a borehole on Båtsfjordfjellet, Varanger Peninsula, revealed a succession of very low-grade, metasedimentary rocks which are assigned to specific Neoproterozoic formations recognisable ... -
Geology of the eastern part of the Meråker area.
Siedlecka, Anna (NGU (245), Journal article, 1967)Within the mapped area slightly metamorphosed clastic sediments occur, probably of Upper Ordovician and Silurian age. The author describes a metagreywacke-slate association with metaconglomerates and gabbrodiorite sills, ... -
Geology of the Iesjav'ri-Skoganvarre area, Northern Finnmarksvidda, North Norway.
Siedlecka, Anna (NGU Bulletin (403), Journal article, 1985)The Iesjav'ri-Skoganvarre areas is located in the northern part ofFinnmarksvidda and its underlain by Archaean-Early Proterozoic rocks. Theoldest unit, the Jer'gul Gneiss Complex, is unconformably overlain bymetasediments ... -
Geology of the northernmost part of the Meråker area.
Siedlecka, Anna; Siedlecki, Stanislaw (NGU (245), Journal article, 1967)Four lithostratigraphical groups comprising sedimentary and igneous rocks have been distinguished in the mapped area. There are conformities and gradual transition between all these groups. The rocks have been subjected ... -
HeatBar Report 2008, basement heat generation and heat flow in the western Barents Sea - Importance for hydrocarbon systems
Elvebakk, Harald; Wissing, Bjørn; Slagstad, Trond; Skilbrei, Jan Reidar; Siedlecka, Anna; Roberts, David; Olesen, Odleiv; Gernigon, Laurent; Pascal, Christophe; Barrière, Cécile; Davidsen, Børre; Ebbing, Jörg (NGU-Rapport (2008.072), Report, 2008)The HeatBar project aims to determine the relative proportion of heat originating in the basement of the western Barents Sea and, as such, follows the methodologies and scientific approach developed in the course of 2005-2008 ... -
Inari. Berggrunnskart Inari M 1:250 000; trykt i farger
Olsen, Karl Inge; Siedlecka, Anna (Map, 1996)Beskrivelsen finnes på kartet. -
Kirkenes. Berggrunnsgeologisk kart Kirkenes M 1:250 000; trykt i farger
Siedlecka, Anna; Nordgulen, Øystein (Map, 1996)Beskrivelsen finnes på kartet. -
Late Precambrian sedimentary rocks of the Tanafjord-Varangerfjord region of Varanger peninsula, Northern Norway.
Siedlecka, Anna; Siedlecki, Stanislaw (NGU (269), Journal article, 1971)The late Precambrian Older Sandstone Series of Føyn (1937) underlies relatively large areas od the Tanafjord-Varangerfjord region of Varanger Peninsula (Siedlecka & Siedlecki, 1967). Geological mapping carried out by the ... -
Late Precambrian stratigraphy and structure of the north-eastern margin of the Fennoscandian shield (East-Finnmark - Timan Region).
Siedlecka, Anna (NGU (316), Journal article, 1975)Later Precambrian (Riphean and Vendian) rocks occur along the north-easternb margin of the Fennoscandian Shield and the Russian Platform in Three zones: 1) the Varanger-Kildin, 2) the Timan-Kanin and 3) the Southern Barents ... -
Lithostratigraphy and correlation of the Archean and Early Proterozoic rocks of Finnmarksvidda and Sørvaranger district.
Siedlecka, Anna; Krill, Allan; Iversen, Edvard (NGU Bulletin (403), Journal article, 1985)Archean and Early Proterozoic rocks of Finnmarksvidda and the SørvarangerDistrict are grouped into lithostratigraphic and lithodemic units aresystematically described. Some correlations are proposed and the foundationsfor ... -
Major element geochemistry of Neoproterozoic successions of Varanger Pensinsula, North Norway, and Sredni and Rybachi Peninsulas, North- west Kola, Russia: provenance patterns and basin evolution
Sochava, Andrei V.; Siedlecka, Anna (NGU Bulletin (432), Journal article, 1997)Major element analyses of 461 samples of Neoproterozoic sedimentary rocks were classified by using petrochemical plots and statistically treated in cluster analyses. In general, the studied siliciclastic rocks represent ... -
Neoproterozoic sedimentation on the Rybachi and Sredni Peninsulas and Kildin Island, NW Kola, Russia
Siedlecka, Anna (NGU Bulletin (427), Journal article, 1995)Frie emneord: Neoproterozoisk Korrelasjon -
Planktonic, acid-resistant microfossils from Upper Proterozoic strata of the Barents Sea Region of Varanger Peninsula, East Finnmark, Northern Norway.
Vidal, Gonzalo; Siedlecka, Anna (NGU (382), Journal article, 1983)Planktonic, acid-resistent microfossils (acritarchs) occur in the Kongsfjord, Båsnæring and Båtsfjord Formations of the Barents Sea Group and in the Styret Formation of the Løkvikfjell Group. Two new taxa are described and ...