Zobrazeno 1 - 10
of 61
pro vyhledávání: '"Michael B. Stephens"'
Autor:
Michael B. Stephens
Publikováno v:
Geological Society, London, Memoirs. 50:549-575
Three separate stacks of thrust sheets (Koli Nappe Complex) constitute the Upper Allochthon in the Caledonide orogen, Sweden. This thrust complex is dominated by late Cambrian–Ordovician successions deposited in subduction-related, marginal oceanic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c0f837a2009dd645800e685f57127570
https://doi.org/10.1144/m50-2019-12
https://doi.org/10.1144/m50-2019-12
Publikováno v:
Geological Society, London, Memoirs. 50:397-434
Crust generated during an accretionary orogeny at 1.66–1.52 Ga (Gothian), and later during crustal extension at c. 1.51–1.49, c. 1.46, c. 1.34–1.30 Ga and after c. 1.33 Ga, dominate the Idefjorden terrane. Metamorphism under greenschist to, loc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::14d6a813a371d5a3f81b44f96d43d59a
https://doi.org/10.1144/m50-2018-34
https://doi.org/10.1144/m50-2018-34
Publikováno v:
Geological Society, London, Memoirs. 50:451-477
Different parts of a Tonian–Early Devonian sedimentary succession, covering Proterozoic crystalline basement, occur along the erosional front to the Caledonide orogen, as outliers and coastal strips on land, and as more continuous strata in offshor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2754471564efefbd56a6c4c26bb006fb
https://doi.org/10.1144/m50-2016-31
https://doi.org/10.1144/m50-2016-31
Autor:
Michael B. Stephens, Nils Jansson
Publikováno v:
Geological Society, London, Memoirs. 50:155-206
Felsic volcanic rocks (c. 1.91–1.89 Ga) and interlayered limestone, hosting Zn–Pb–Ag ± Cu ± Au ± Fe sulphide and Fe oxide deposits, characterize the Bergslagen lithotectonic unit, Svecokarelian orogen, south-central Sweden. Three sulphide mi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f74af64cf17e6585bfc7b18649ec05f1
https://doi.org/10.1144/m50-2017-40
https://doi.org/10.1144/m50-2017-40
Autor:
Michael B. Stephens, David G. Gee
Publikováno v:
Geological Society, London, Memoirs. 50:495-515
The Jamtlandian Nappes and their equivalents further north, belonging to the lower thrust sheets in the Caledonide orogen of Sweden, comprise a mega-duplex of Cryogenian–Silurian sedimentary rocks sandwiched between structurally higher allochthons
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2375c2d22e1d9e1eaf42acb47c7bd73c
https://doi.org/10.1144/m50-2018-7
https://doi.org/10.1144/m50-2018-7
Autor:
Michael B. Stephens
Publikováno v:
Geological Society, London, Memoirs. 50:237-250
An intimate lithostratigraphic and lithodemic connection between syn-orogenic rock masses inside the different lithotectonic units of the 2.0–1.8 Ga (Svecokarelian) orogen, Sweden, is proposed. A repetitive cyclic tectonic evolution occurred during
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2e67c094566cb15cc544ad2f6a1e5aac
https://doi.org/10.1144/m50-2019-18
https://doi.org/10.1144/m50-2019-18
Publikováno v:
Geological Society, London, Memoirs. 50:435-448
The Eastern Segment in the Sveconorwegian orogen, southwestern Sweden, is dominated by 2.0–1.8, 1.7 and 1.5–1.4 Ga crust; and the overlying Idefjorden terrane by 1.6–1.5 Ga crust. Assuming reorganization of a subduction system prior to 1.5–1.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::be489adbf496249a45a23c810a09e1c9
https://doi.org/10.1144/m50-2018-83
https://doi.org/10.1144/m50-2018-83
Publikováno v:
Geological Society, London, Memoirs. 50:337-349
The 1.1–0.9 Ga Sveconorwegian orogen in southwestern Scandinavia belongs to the global system of mountain belts established during the assembly of the supercontinent Rodinia. An overall north–south structural trend and five lithotectonic units bo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0920874b3bf9813db90f185960d5b40b
https://doi.org/10.1144/m50-2018-17
https://doi.org/10.1144/m50-2018-17
Autor:
David G. Gee, Michael B. Stephens
Publikováno v:
Geological Society, London, Memoirs. 50:481-494
The Scandian mountains in northwestern Sweden are dominated by the eastern part of the Scandinavian Caledonides, an orogen that terminated during the middle Paleozoic with Himalayan-style collision of the ancient continents of Baltica and Laurentia.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ae320bec2165ac4df2985d976101edf5
https://doi.org/10.1144/m50-2017-21
https://doi.org/10.1144/m50-2017-21
Autor:
Magnus Ripa, Michael B. Stephens
Publikováno v:
Geological Society, London, Memoirs. 50:269-288
Separate pulses of magmatic activity involving the emplacement of plutons with predominantly granitic or bimodal granitic and gabbroic composition, as well as dolerite dykes, occurred in a cratonic setting in eastern Sweden at c. 1.59–1.58 Ga, c. 1
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::59c31943c559d9f6e8c8d8e4bcd2d003
https://doi.org/10.1144/m50-2017-4
https://doi.org/10.1144/m50-2017-4