Results 21 to 30 of about 3,972 (218)

Fault systems in multiply deformed regions of Eurasia

open access: yesRussian Journal of Earth Sciences, 2023
We have studied the orogenic fragile deformation of the upper Earth’s crust of several areas of the Eurasian continent, where deformations have occurred many times – in the Tian Shan and Altai-Sayan regions of the Central Asian Paleozoic Fold Belt and in
Burtman V, Kolodyazhnyi S
doaj   +1 more source

Vanadium Mineralization in the Kola Region, Fennoscandian Shield [PDF]

open access: yesMinerals, 2018
In the northern Fennoscandian Shield, vanadium mineralization occurs in the Paleoproterozoic Pechenga–Imandra-Varzuga (PIV) riftogenic structure. It is localized in sulfide ores hosted by sheared basic and ultrabasic metavolcanics in the Pyrrhotite Ravine and Bragino areas and was formed at the latest stages of the Lapland–Kola orogeny 1.90–1.86 Ga ago.
Alena Kompanchenko   +2 more
openaire   +1 more source

Timing of syn-orogenic, high-grade transtensional shear zone formation in the West Uusimaa Complex, Finland [PDF]

open access: yesBulletin of the Geological Society of Finland, 2022
We present zircon and titanite U-Pb ages from granulite-facies transtensional shear zones and a greenschist facies strike-slip shear zone in the Karkkila-Vihti area, West Uusimaa. The zircon rim and titanite ages of c.
Taija Torvela, Matti Kurhila
doaj   +1 more source

Comparison of geophysical sections of the Earth crust with the results of deep drilling in the Fennoscandian Shield

open access: yesГеофизический журнал, 2012
The nature of geoacoustic waves is discussed, based on comparison of the results of seismic and acoustic studies in the Fennoscandian Shield with the drilling record of the Kola Superdeep Borehole: 12262 m (1970-1990), Russia; Gravberg 6337 m (1986-1987),
N. V. Sharov
doaj   +1 more source

ON RECENT FAULTS AND PALEOSEISMIC FRACTURES IN THE PALAEOPROTEROZOIC ONEGA STRUCTURE OF THE BALTIC SHIELD

open access: yesTransactions of the Karelian Research Centre of the Russian Academy of Sciences, 2017
Specific morphological structures corresponding to impulsive seismotectonic events were identified within the Onega structure of the Fennoscandian (Baltic) shield of the East European platform.
Андрей Алексеевич Никонов   +5 more
doaj   +1 more source

Crustal Architecture of the Inverted Central Lapland Rift Along the HUKKA 2007 Profile [PDF]

open access: yes, 2013
Peer ...
Bruckl, Ewald   +9 more
core   +1 more source

Pressure, temperature and time constraints on tectonic models for southwestern Sweden [PDF]

open access: yes, 2010
In this work, a number of key localities have been investigated in detail in order to provide precise constraints on models for the tectonic evolution of southern Sweden.
Austin Hegardt, Eric
core   +1 more source

Some features of deformation structures in an esker on the southern margin of the Fennoscandian shield [PDF]

open access: yesBulletin of the Geological Society of Finland, 2018
As a result of melting of the last ice sheet in the southeastern edge of the Fennoscandian shield, ridge structures called eskers were formed. One of these eskers is the subject of our study.
A. Poleshchuk, D. Zykov, S. Shvarev
doaj   +1 more source

The Present State of the Kola Peninsula Broadband Seismic Network

open access: yesRussian Journal of Earth Sciences, 2023
This paper provides information about the main parameters of spatial broadband seismic network in the Kola region (the northeastern part of the Fennoscandian Shield). Since 2021 the seismic network has been expanded by five seismic stations and currently
Goev Andrey Georgievich   +5 more
doaj   +1 more source

Seismic situation in the northern parts of the Karelian craton (Fennoscandian Shield)

open access: yesTransactions of the Karelian Research Centre of the Russian Academy of Sciences, 2018
The seismic situation in the northern parts of the Karelian craton (Fennoscandian Shield) was studied. The geological structure of the territory is briefly described. The events of natural and man-made genesis recorded by seismic stations of the Karelian
Ирина Александровна Зуева   +3 more
doaj   +1 more source

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