New data on the structure of the central part of the White Sea paleorift system

Балуев, А. С.; Zhuravlev, V. A.; Przhiyalgovskii, E. S.

doi:10.1134/s1028334x09060014

Cited by 12 publications

(6 citation statements)

References 2 publications

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“…The Kiruna area is located in the region of the northwestern part of the Baltic shield [1][2][3][4][5]. The bedrock consists of archaic rocks dated to the age of 2.7Ga, with a magmatic-sedimentary sequence metamorphosed in the greenstone facies [6,7].…”

Section: Geology Of the Kiruna Areamentioning

confidence: 99%

Untitled

2023

AMMS

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The town of Kiruna in northern Sweden beyond the Arctic Circle is home to an iron ore mine that has been in operation since the late 19th century and is planned for about a century more. The mine heavily affects the urban landscape as its dumps and other infrastructure heavily distort it. The scenario proposed by the author allows for several solutions that fit into sustainable development, allowing the mining plant to continue operating while modifying the city's landscape and restoring the utility of degraded areas. The proposed scenarios involve the re-exploitation of rock resources from dumps, the construction of renewable energy facilities, reforestation, and the location of tourist infrastructure.

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Section: Geology Of the Kiruna Areamentioning

confidence: 99%

Untitled

2023

AMMS

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“…Numerous researchers have highlighted the high contrast in neotectonic movements, the change in sedimentation conditions as the result of the rising coastline, traces of strong seismicity during the late and postglacial periods along the White Sea coast and the increased level of modern seismicity within the Kandalaksha Graben when compared to its surrounding regions (Baluev et al, 2009a, 2009b; Evzerov et al, 2014; Gorbatov et al, 2020; Gorbatov and Sorokin, 2018; Kosevich and Romanovskaya, 2014; Koshechkin, 1979; Lukashov, 2004; Maev et al, 2010; Marakhanov and Romanenko, 2014; Rybalko et al, 2011; Shevchenko et al, 2007; Shvarev et al, 2022; Zaretskaya et al, 2022).…”

Section: Study Areamentioning

confidence: 99%

Paleogeographical reconstructions of the environment on the Karelian shore of the White Sea (Keret Area, Russia)

Shelekhova,

Lavrova,

Lobanova

et al. 2023

The Holocene

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Archeological sites of ancient people have been identified on the Karelian coast of the White Sea, near the mouth of the Keret River. The aim of our studies was to determine the position of the sea shoreline, correlate archeological sites with it, date ancient settlements, and reconstruct the paleoclimatic conditions and habitats of ancient people. We analyzed the bottom sediments of five small lakes that became separated from the sea at various times during the Holocene, using a combination of Quaternary geological methods such as spore-pollen, diatoms, radiocarbon (14C), etc. New data have been obtained regarding the timing when the study area resurfaced and the possibility of its subsequent habitation by humans. We have generated q curve illustrating the relative displacement of the White Sea coastline, thus reconstructing the migration of the sea coastline. The article also presents parameters detailing the differentiated movements of various blocks of the crystalline basement along the Karelian coast of the White Sea. Additionally, we produced paleogeographic reconstructions describing the natural conditions of the habitat of ancient people and the development of the territory from the beginning of the Holocene to the present day. Our findings indicate that people likely began inhabiting this area no earlier than 6500 years ago. Furthermore, we propose that a potential catastrophic event, such as a tsunami)= resulting from an earthquake near Veliky Island and the Velikaya Salma Strait (Kandalaksha Bay), occurred no earlier than 2600–3000 years ago.

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“…Фрагмент содержит палеорифты ОнежскоКанда лакшский, КерецкоПинежский, ЧапомскоЛешукон ский, Мезенский северозападного простирания. Рифты разделены межвпадинными перемычками и выступами кристаллического фундамента, перекрыты водами Белого моря и платформенными осадочными образованиями [Baluev et al, 2009].…”

Section: материалы и методыunclassified

Modeling of the Lithosphere in the White Sea Region Using Decomposition of Anomalous Gravitational and Magnetic Fields

Belashev,

Bakunovich,

Sharov

2023

Geodin. tektonofiz.

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The research area includes the White Sea and adjacent land located in the junction zone of the eastern part of the Fennoscandian Shield and the Russian Plate. The purpose of the study is to construct a model of the lithospheric structure of the region using decomposition of anomalous gravitational and magnetic fields and inverse problem solving for components of gravity and magnetic fields, respectively. The decompositions of the fields were provided by the singular spectral method in the software package "R 4.3.1". The inverse problems were solved using the programs of the "Integro" complex. The components of the fields help to identify and analyze buried geological structures. The rift system of the White Sea is most clearly represented by the fourth component of the gravitational and magnetic fields. The positions of density and magnetic inhomogeneities of the Earth’s crust corresponding the components of the fields have been determined. The component model is compared with the seismic density and magnetic models of the lithosphere along the 3-AР geotraverse (Kem – White Sea Throat).

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New data on the structure of the central part of the White Sea paleorift system

Cited by 12 publications

References 2 publications

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Paleogeographical reconstructions of the environment on the Karelian shore of the White Sea (Keret Area, Russia)

Modeling of the Lithosphere in the White Sea Region Using Decomposition of Anomalous Gravitational and Magnetic Fields

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