Results 81 to 90 of about 970 (117)

Late Svecofennian sedimentary basins in the crystalline basement of NE Poland and adjacent area of Lithuania: ages, major sources of detritus, and correlations [PDF]

, 2016
The Precambrian basement of Lithuania and NE Poland, much of which is metasedimentary paragneiss, can be accessed only by cores from deep boreholes.
Wiszniewska, Janina, Skridlaite, Grazina, Krzeminska, Ewa, Williams, Ian   +3 more
core   +1 more source

Thermal and hydrothermal influence of rapakivi igneous activity on late-Svecofennian granites in southeastern Finland. [PDF]

, 2017
The recent discovery of polymetallic vein mineralizations around the Sarvlaxviken Bay (west-ernmost part of the Wiborg Batholith, SE Finland) has challenged the common assumption that Finnish rapakivi granites are metal-infertile and encouraged further ...
Villar, Arturo
core  

Sr–Nd isotope and geochemical characterisation of the Paleoproterozoic Västervik formation (Baltic Shield, SE-Sweden): a southerly exposure of Svecofennian metasiliciclastic sediments

, 2011
The Paleoproterozoic Vastervik formation represents the southernmost exposure of Svecofennian metasediments and comprises a large psammitic succession of up to 5,000 m thickness dominated by quartzite with minor pelite and arkose. The Vastervik formation
I. C. Kleinhanns, B. T. Hansen, Kleinhanns, Ilka C., Hansen, Bent Tauber, M. Fischer-Gödde, Fischer-Goedde, M.   +5 more
core   +1 more source

Lateral spreading in the Svecofennian mid-crust revealed by seismic attribute analysis

, 2014
In orogenic belts, crustal thickening precedes rheological weakening of the middle and lower orogenic crust leading to lateral spreading and, ultimately, to collapse of an orogen. Recent studies have implied similar development in the middle crust during
Torvela, Taija, Moreau, Julien, Heikkinen, Pekka, Butler, Robert, Korja, Annakaisa   +4 more
core   +1 more source

The Bergslagen ore province, Sweden: Review and update of an accreted orocline, 1.9-1.8 Ga BP

, 2012
We have revisited and re-interpreted deformation structures in the classical ore province of west Bergslagen, part of the ∼1.9-1.8Ga old Svecofennian orogen in south-central Sweden. Four successive phases and styles of deformation reflect (1) continental
Beunk, F.F., Kuipers, G.
core   +1 more source

Svecofennian volcanism in northernmost Sweden

, 1995
Volcanism and volcanic processes are important factors for ore formation. The environment of the volcanism plays an important role for which type of ore that will be formed. For instance, massive sulphide deposits are now being formed in mid-ocean ridges
Perdahl, Jan-Anders
core   +1 more source

1.90-1.88Ga arc magmatism of central Fennoscandia: geochemistry, U-Pb geochronology, Sm-Nd and Lu-Hf isotope systematics of plutonic-volcanic rocks from southern Finland

Geologica Acta, 2016
The earliest Svecofennian magmatism in southern Finland has been dated at 1.90-1.88Ga. As an example of this, the Orijärvi (ca. 1.89Ga) and Enklinge (ca.
J. KARA, M. VÄISÄNEN, Å. JOHANSSON, Y. LAHAYE, H. O'BRIEN, O. EKLUND   +5 more
doaj  

Complexities and span of crystallization ages of a non-foliated Svecofennian granite pluton

Upper-intercept U-Pb ages (TIMS) of two non-foliated I-type granites are 1887 ± 20 Ma (part of a granodiorite-granite sequence) and 1881 ± 2 Ma (leucogranite with transitions into pegmatite).
Lindh, Anders, Söderlund, Ulf, Persson, Per Olof, Lindgren, Paula, Scherstén, Anders, Olsson, Johan, Olsson, Johan,, Lindgren, Paula,, Söderlund, Ulf,, Lindh, Anders,, Persson, Per Olof,, Scherstén, Anders,, Lund University.   +12 more
core   +1 more source

Is the Estonian Alutaguse Section of Eastern Fennoscandia a continuation of the Southern Svecofennian Finnish Terranes, or is it akin to the Swedish Bergslagen region? [PDF]

<p>This research explores the geochemistry of Paleoproterozoic metasedimentary and metavolcanic units in the Alutaguse region of North Estonia and the South Svecofennian (SS) zones, including Ladoga, Saimaa, Häme Belt, and Uusimaa Belt, to better ...
Solano-Acosta, Juan David
core   +1 more source

Petrography and whole-rock geochemical characteristics of Västervik granitoids to syenitoids, southeast Sweden: constraints on petrogenesis and tectonic setting at the southern margin of the Svecofennian domain

, 2011
Granitoid to syenitoid petrogenesis along the Laurentia-Baltica continental margin occurred in two cycles. Within the Fennoscandian Shield, the first cycle is correlated with the 1.95-1.8 Ga Svecofennian domain and the second is correlated with the 1.85 ...
Nolte, Nicole, I. C. Kleinhanns, W. Baero, B. T. Hansen, Kleinhanns, Ilka C., Hansen, Bent T., N. Nolte, Baero, Wiebke   +7 more
core   +1 more source