Showing papers in "Gff in 1952"
TL;DR: In this article, Pollen Morphology and Plant Taxonomy is discussed. But the focus is on plant taxonomy, and not on pollen morphology and taxonomy of plants.
Abstract: (1952). Pollen Morphology and Plant Taxonomy. Geologiska Foreningen i Stockholm Forhandlingar: Vol. 74, No. 4, pp. 526-527.
1,557 citations
TL;DR: In this article, the Marine Limit (MG) is defined as the dividing line between the sea and land-area in Late-Glacial time, which can be defined either as the highest level of the sea or as the lowest line of the land area.
Abstract: This investigation is an analysis of some problems of the Marine Limit (MG) in Western Sweden. As MG has been formed as the dividing-line between the sea and land-area in Late-Glacial time, it can be defined either as the highest level of the sea or as the lowest line of the land-area. In the former case it can be determined as the uppermost limit of marine abrasion or of stratified drifts, especially outwash plains, rarely eskers or other fine deposits, such as silt or shore-dunes. In the latter case it is the lowermost line of marginal drainage channels or certain glacial drifts such as ablation moraines. In theory, but in fact only exceptionally, it might be the highest limit of salt-water deposits. Morphologically three types of MG can be distinguished. Usually it is a simple notch, with or without pebbles and situated a little above the uppermost real marine beach. Very often, but only for short distances, it is formed as a distinct terrace and in such a case it is in fact the highest marine...
23 citations
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TL;DR: In this paper, the particle size of some Ordovician limestones from Oland and the Siljan district of Sweden have been made on thin slides by means of a micrometer according to the method of Delesse-Rosiwal.
Abstract: Measurements of the particle size of some Ordovician limestones from Oland and the Siljan district of Sweden have been made on thin slides by means of a micrometer according to the method of Delesse-Rosiwal. The percentage of fossil fragments (other particles of sand size being very rare in the limestones studied) with a maximum length on the thin slide of more than 0,1 mm has been determined, distinguishing thereby between a »sand fraction» with particle size greater than 0,1 mm and a »groundmass» of finer grains including the secondarily cementated pore spaces. The procedure described allows a rough comparison of different kinds of sedimentary limestones according to their general coarseness. The terms of Grabau (1901), calcarenite and calcilutite, originally intended only for elastic limestones, are recommended for use as strictly granulometrical terms for all types of sedimentary limestones in which the original form of the particles has not been destroyed by recrystallization. It seems prefe...
13 citations
TL;DR: In this paper, the Sarvas Series is proposed as a middle ordovician series, which answers roughly to the lower Hovin Series of the Trondhjem Region and stands between the Mesket and Gilliks Series of Vasterbotten.
Abstract: Starting with the description of a caledonian type-section south of Nasafjall, Lapland, some ordovician evolutionary trends are discussed. The discrimination of a new middle-ordovician series, the Sarvas Series, is proposed. It answers roughly to the lower Hovin Series of the Trondhjem Region and stands between the Mesket and Gilliks Series of Vasterbotten. The position of ordovician volcanics is discussed.
11 citations
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TL;DR: This area, situated near the Norwegian frontier south of the 68th Parallel, was examined by the Boliden Mining Company in the summer of 1950 as mentioned in this paper, and the results of their investigations worth publishing.
Abstract: This area, situated near the Norwegian frontier south of the 68th Parallel, was examined by the authors for the Boliden Mining Company in the summer of 1950. Since it exhibits several interesting stratigraphical and tectonical features, in some respects differing from those of the adjacent territories both in Norway and Sweden, the authors have thought the geological results of their investigations worth publishing. The area forms the southern marginal portion of a large window in the Caledonides within which the peneplained autochtonous Archean basement is exposed. This latter consists of granite, invaded by dikes and irregular masses of greenstone, both rocks still preserving an ancient, steeply dipping pressure structure or foliation. Upon this basement there unconformably rests a bed, about 20 metres thick, of entirely unmetamorphosed quartz-conglomerate and sandstone, the latter still showing ripple-marks and current-bedding. These psammitic strata are overlain by a bed of a severely crushed...
7 citations
TL;DR: In this article, the zonaren Zirkone des Ramberggranites is described as a "Zirkone of the Rambergranites" in Sweden.
Abstract: (1952). Die zonaren Zirkone des Ramberggranites. Geologiska Foreningen i Stockholm Forhandlingar: Vol. 74, No. 2, pp. 173-184.
TL;DR: In this article, a well preserved asteroid from the top of the Lower Silurian of Gotland is described as a new species, Neopalaeaster hesstandi, which seems to form the transition from the Ordovieian Protopalaeasteridae to the Carboniferous NeopalAEaster erawfordsvillensis.
Abstract: A well preserved asteroid from the top of the Lower Silurian of Gotland is described as a new species, Neopalaeaster hesstandi. It seems to form the transition from the Ordovieian Protopalaeasteridae to the Carboniferous Neopalaeaster erawfordsvillensis.
TL;DR: In this paper, the impregnering of porosa material med plast for mikroundersokningar Geologiska Foreningen i Stockholm Forhandlingar is described.
Abstract: (1952) Impregnering av porosa material med plast for mikroundersokningar Geologiska Foreningen i Stockholm Forhandlingar: Vol 74, No 2, pp 212-217
TL;DR: In this paper, the authors presented a study on the lower Dicellograptus Shales of Sweden. But they focused on the putillus putillus of the Shales.
Abstract: (1952). On »Climaeograptus putillus» of the Lower Dicellograptus Shales of Sweden. Geologiska Foreningen i Stockholm Forhandlingar: Vol. 74, No. 3, pp. 231-236.
TL;DR: In this article, a number of glacifluvial channels in South Sweden are described and the consequences of the hypothesis of the formation of some ice-dammed lakes are discussed.
Abstract: A number of glacifluvial channels in South Sweden are described and the consequences of the hypothesis of the formation of some ice-dammed lakes are discussed.
TL;DR: The Problem of Microseismic Barriers with Special Reference to Scandinavia as discussed by the authors is a special case of the problem of cross-layer barriers with special reference to the Nordic countries.
Abstract: (1952). The Problem of Microseismic Barriers with Special Reference to Scandinavia. Geologiska Foreningen i Stockholm Forhandlingar: Vol. 74, No. 4, pp. 427-449.
TL;DR: The Deutschen Quartavereinigung as discussed by the authors presents a survey of the Eiszeitalter und Gegenwart of the 20th century in the Geologiska Foreningen i Stockholm Forhandlingar.
Abstract: (1952). Eiszeitalter und Gegenwart. Jahrbuch der Deutschen Quartavereinigung. Geologiska Foreningen i Stockholm Forhandlingar: Vol. 74, No. 1, pp. 104-105.
TL;DR: The paper deals with marine Quaternary shell occurrences in the Swedish provinces of Varmland, Dalsland, Vastergotland, and Halland and their fauna, chiefly molluses.
Abstract: The paper deals with marine Quaternary shell occurrences in the Swedish provinces of Varmland, Dalsland, Vastergotland, and Halland and their fauna, chiefly molluses. The material is kept in the Paleozoological Department of the Swedish Museum of Natural History (Riksm.) and in the Geological Survey of Sweden (S. G. U.). Species, not earlier known from the Quaternary of Sweden are: Hydrobia ventrosa, Buccinum finnmarchianum attenuatum, B. undatum caeruleum, B. undatum littorale, Bela angulosa, and Nucula nucleus radiata; from Varmland Natica clausa; from Dalsland: Neptunea despecta carinata, Modiola modiolus, and Modiolaria laevigata; from Vastergotland: Emarginula fissura, Patella vulgata, Onoba proxima, Velutina velatina, Buccinum terrae novae, Roxania utriculus, Cylichna alba, C. cylindracea, C. occulta, Nucula nitida, Isocardia cor, Thyasira gouldi, Donax vittatus, Lucinopsis undata, ?Lutraria elliptica, Solecurtus antiquatus, and Thracia convexa; from Halland: Rissoa interrupta, R. parva, Bu...
TL;DR: The Meraslinka graphite deposit is located on the Torne River at the border between the City of Kiruna and the parish of Junosuando, Northern Sweden.
Abstract: The Bedrock at the Meraslinka Graphite Deposit The Meraslinka graphite deposit is situated on the Torne River at the border between the City of Kiruna and the parish of Junosuando, Northern Sweden. The bedrock consists of a series of amphibolites, probably metamorphic tuffitic sediments. Among them are found layers of graphite schists and a few small bodies of ophicalcitic limestone. The carbon content of the schists is fairly small and never exceeds 36%. The highly metamorphie series is of Karelidie age and is intruded by several eruptive rocks. The oldest is a gabbro, one type of which consists only of amphibole, apatite, magnetite and pyrrhotite. Further the amphibolite-graphite series is intruded by a syenitic rock, often rich in pyrrhotite. Closely connected with the syenite is a granite, which differs from the syenite only in having a higher quartz content and a plagioclase richer in albite (Ab72An25 in the syenite, Ab83A12 in the granite). The youngest rock is a granite which is probably r...