Zobrazeno 1 - 10
of 318
pro vyhledávání: '"E. HANSKI"'
Publikováno v:
Bulletin of the Geological Society of Finland, Vol 88, Iss 1, Pp 21-46 (2016)
Soapstone industry utilizes different types of soapstone mainly as a construction material for fireplaces. In this application soapstone has to meet different temperature requirements in different parts of fireplaces. Mineralogical and structural inf
Externí odkaz:
https://doaj.org/article/bee934a73fb04d53a6dea8f95d844203
Publikováno v:
Bulletin of the Geological Society of Finland, Vol 84, Iss 2, Pp 85-120 (2012)
This paper gives the first description of a newly-recognized, basin-wide metasedimentary unit in the Paleoproterozoic (~2.4–1.9 Ga) Peräpohja Belt, northern Finland. The unit, which is named the Petäjäskoski Formation (PFm) after the single loca
Externí odkaz:
https://doaj.org/article/ae2f9378876d4a4d890a8e084fcf79d8
Publikováno v:
Bulletin of the Geological Society of Finland, Vol 82, Iss 1, Pp 31-62 (2010)
Using the SIMS, ID-TIMS and Sm-Nd isotopic methods and the electron microprobe, we have studied several differentiated mafic intrusions of the c. 2.2 Ga gabbro-wehrlite association (GWA) from four Paleoproterozoic schist belts and the Archean Kuhmo G
Externí odkaz:
https://doaj.org/article/2595b64d725b4463b2ef3dcdf5642f3a
Publikováno v:
Geologica Acta, Vol 13, Iss 4 (2015)
The Mesoarchean chromitites in the Singhbhum craton provide the main source of chromium in India. We report here results of dating zircon grains that were found in the chromitite of ultramafic rocks belonging to the southern part of the Archean Baula
Externí odkaz:
https://doaj.org/article/03383f89c2ec469e947b93d6d0f8cc00
Publikováno v:
Bulletin of the Geological Society of Finland, Vol 77, Iss 1, Pp 5-29 (2005)
In the northern and north-eastern part of the Perädpohja Schist Belt, northern Finland, an extensive supracrustal rock unit has been identified which is composed of alternating amphibolitic and arkositic components. The amphibolites form layers whos
Externí odkaz:
https://doaj.org/article/98d7179f47dc4182b99f4899ed5ff770
Publikováno v:
Bulletin of the Geological Society of Finland, Vol 75, Iss 1-2, Pp 69-92 (2003)
The Paleoproterozoic Misi region forms the northeastern part of the Peräpohja Schist Belt in northern Finland. The area comprises mafic volcanic land sedimentary rocks, differentiated gabbros, and late-orogenic granitoids. Three geochemically differ
Externí odkaz:
https://doaj.org/article/ef0b293c630642959abd73dac67bf77f
Publikováno v:
Bulletin of the Geological Society of Finland, Vol 62, Iss 2, Pp 123-133 (1990)
Sm-Nd, Pb-Pb and U-Pb isotopic results are presented for samples from the Pilgujärvi Suite of the Pechenga Series. Whole rock samples and clinopyroxenes of ferropicritic volcanics yield a Sm-Nd isochron age of 1990 ± 66 Ma with εNd + 1.6 ± 0.4. T
Externí odkaz:
https://doaj.org/article/38cde9edf0f04e1a9ba525780b3655a8
Autor:
E. Hanski
Publikováno v:
Bulletin of the Geological Society of Finland, Vol 52, Iss 1, Pp 67-100 (1980)
Komatiitic metavolcanics are abundant and well-preserved in the Siivikkovaara area, which lies in the middle part of the Archean Kuhmo greenstone belt. Together with the underlying tholeiites, these form the Kellojärvi Group, which is divided into t
Externí odkaz:
https://doaj.org/article/39ed522e54854c82980fa4d574eeccaa
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Akademický článek
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