Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Aku Heinonen"'
Publikováno v:
Bulletin of the Geological Society of Finland, Vol 96, Iss 1, Pp 5-34 (2024)
We present a geochemical dataset and cathodoluminescence images of apatite from the Neoarchean (2610 Ma) glimmerite-carbonatite rocks from the Siilinjärvi complex, Eastern Finland. The subhedral, tapered prismatic grains are compositionally fluorapa
Externí odkaz:
https://doaj.org/article/8a5d304196804763ac9fd92c67a744bd
Autor:
Timo Tiira, Tomasz Janik, Toni Veikkolainen, Kari Komminaho, Tymon Skrzynik, Sakari Väkevä, Aku Heinonen
Publikováno v:
Bulletin of the Geological Society of Finland, Vol 94, Iss 2, Pp 165-180 (2023)
We present results from a deep seismic sounding (DSS) experiment carried out along the southern coast of Finland in summer 2015. Data used in the survey derived from industrial blasts recorded by temporary project stations and permanent network sta
Externí odkaz:
https://doaj.org/article/d5fe450dd4c04af1872d9678476d032c
Autor:
Johanna Tepsell, O. Tapani Rämö, Aku Heinonen, Yann Lahaye, Pieti Haapala, Tapio Halkoaho, Jussi S. Heinonen, Henri Höytiä, Jukka Konnunaho, Ville Järvinen
Publikováno v:
Bulletin of the Geological Society of Finland, Vol 92, Iss 1, Pp 5-17 (2020)
Archean terranes are generally poorly exposed and structurally complicated, making models of geological evolution difficult to establish. Because of pervasive metamorphism, strong deformation, and poorly exposed bedrock, the stratigraphy, geochronolo
Externí odkaz:
https://doaj.org/article/9191386d57bd44adb9c20a6ce6bf1e32
Publikováno v:
Bulletin of the Geological Society of Finland, Vol 91, Iss 1, Pp 5-33 (2019)
The 1.64 Ga Ahvenisto complex, southeastern Finland, is an anorthosite mangerite-charnokite-granite (AMCG) suite in which diverse interaction styles of coeval mafic and felsic magmas are observed. Commingling, resulting in mafic pillows and net-veine
Externí odkaz:
https://doaj.org/article/96a2b4eeedc24e908c36a27ba339f856
Autor:
Kieran Iles, Riikka Fred, Aku Heinonen, Ville Juhani Virtanen, Frank J. Spera, Jussi S. Heinonen, W. A. Bohrson
Publikováno v:
Crustal Magmatic System Evolution
Magmas readily react with their surroundings, which may be other magmas or solid rocks. Such reactions are important in the chemical and physical evolution of magmatic systems and the crust, for example, in inducing volcanic eruptions and in the form
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::525550b493bf403efcb421233e7e26d7
https://doi.org/10.1002/9781119564485.ch7
https://doi.org/10.1002/9781119564485.ch7
Autor:
Kari Komminaho, Sakari Väkevä, Annakaisa Korja, Tymon Skrzynik, Tomasz Janik, Aku Heinonen, Timo Tiira, Toni Veikkolainen
Publikováno v:
Pure and Applied Geophysics. 177:3775-3795
The Kokkola–Kymi Deep Seismic Sounding profile crosses the Fennoscandian Shield in northwest-southeast (NW–SE) direction from Bothnian belt to Wiborg rapakivi batholith through Central Finland granitoid complex (CFGC). The 490-km refraction seism
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a1eade6a1c77d01975c0c9f36247c160
https://doi.org/10.1007/s00024-020-02459-3
https://doi.org/10.1007/s00024-020-02459-3
Publikováno v:
Bulletin of the Geological Society of Finland, Vol 91, Iss 1, Pp 5-33 (2019)
The 1.64 Ga Ahvenisto complex, southeastern Finland, is an anorthosite-mangerite-charnokite-granite (AMCG) suite in which diverse interaction styles of coeval mafic and felsic magmas are observed. Commingling, resulting in mafic pillows and net-veine
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ad0e37c99783d7f551ec9973fff799aa
https://doi.org/10.17741/bgsf/91.1.001
https://doi.org/10.17741/bgsf/91.1.001
Publikováno v:
University of Helsinki
Development of computational modeling tools has revolutionized studies of magmatic processes over the last four decades. Their refinement from binary mixing equations to thermodynamically controlled geochemical assimilation models has provided more c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::33f42e04f12a34609e3073664987b05e
https://doi.org/10.1016/j.lithos.2022.106751
https://doi.org/10.1016/j.lithos.2022.106751
The parental magmas of massif-type anorthosites are suggested to originate from either the mantle or lower crust. If the source is the mantle, the magmas are presumed to have undergone crustal assimilation prior to plagioclase crystallization, which
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6c669bac7e27b2113b870c8873b86b2d
https://doi.org/10.5194/egusphere-egu21-6922
https://doi.org/10.5194/egusphere-egu21-6922
Autor:
V. Virtanen, Aku Heinonen, Frank J. Spera, Jussi S. Heinonen, Kieran Iles, W. A. Bohrson, Riikka Fred
Magmas readily react with their surroundings, which may be other magmas or solid rocks. Such reactions are important in the chemical and physical evolution of magmatic systems and the crust, for ex...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1d4b57ce09b58762500104b419ac147e
https://doi.org/10.1002/essoar.10504606.2
https://doi.org/10.1002/essoar.10504606.2