Connectivity of Fennoscandian Shield terrestrial deep biosphere microbiomes with surface communities [PDF]
Communications Biology, 2022 Westmeijer et al. employ high-throughput sequencing to investigate the connection between deep biosphere groundwaters and surface microbial communities.
George Westmeijer +10 more
doaj +9 more sources
Terrigenous dissolved organic matter persists in the energy-limited deep groundwaters of the Fennoscandian Shield [PDF]
Nature Communications, 2022 Dissolved organic matter in the Fennoscandian Shield deep continental bedrock fracture waters of varying characteristics and ages carries a strong terrigenous signature, and only a small proportion of this potential energy source links to the deep ...
Helena Osterholz +6 more
doaj +2 more sources
Energy efficiency and biological interactions define the core microbiome of deep oligotrophic groundwater [PDF]
Nature Communications, 2021 Ecological constraints on microbial niches in oligotrophic deep groundwaters remain elusive. This study provides support for the existence of a common core microbiome in two deep groundwater biomes of the Fennoscandian Shield using a genome-resolved ...
Maliheh Mehrshad +8 more
doaj +2 more sources
HETEROGENEOUS LITHOSPHERIC STRUCTURE OF THE FENNOSCANDIAN SHIELD: SEISMIC DATA
Геодинамика и тектонофизика, 2022 A generalization has been obtained based on the data for deep seismic studies on longitudinal DSS profiles (explosion seismology) and seismological evidence found for local and distant earthquakes (earthquake seismology) in the Fennoscandian Shield over ...
N. V. Sharov, A. A. Lebedev
doaj +2 more sources
The Fennoscandian Shield deep terrestrial virosphere suggests slow motion ‘boom and burst’ cycles [PDF]
Communications Biology, 2021 Karin Holmfeldt et al. sequence metagenomes and metatranscriptomes of viruses in deep groundwaters down to 448 m below the surface. The results reveal ecological dynamics of viruses including slow motion ‘boom and burst’ cycles and a ‘kill the winner ...
Karin Holmfeldt +9 more
doaj +2 more sources
Precambrian lithospheric evolution of the Fennoscandian Shield
Геофизический журнал, 2017 Generalized reconstructions have been made on the basis of integrated DSS and CDP data and seismological evidence of local and remote earthquakes obtained for the Fennoscandian Shield over the last forty years.
N. Sharov, L. P. Sviridenko
doaj +4 more sources
The crystalline basement of Estonia: rock complexes of the Palaeoproterozoic Orosirian and Statherian and Mesoproterozoic Calymmian periods, and regional correlations [PDF]
Estonian Journal of Earth Sciences, 2009 New data on the Fennoscandian Shield and the Baltic area suggest a need for reinterpretation of the stratigraphy of Estonian Precambrian rock complexes.
Kirs, Juho +7 more
doaj +3 more sources
Intracratonic Palaeoproterozoic granitoids in northern Finland: Prolonged and episodic crustal melting events revealed by Nd isotopes and U-Pb ages on zircon [PDF]
Bulletin of the Geological Society of Finland, 2007 Zircons from twelve Palaeoproterozoic granitoids from the Central Lapland Granitoid Complex (CLGC) and from the Hetta Complex (HC) in northern Finland were dated using the NORDSIM ion microprobe.
N. Ahtonen, P. Hölttä, H. Huhma
doaj +3 more sources
The origin, source, and cycling of methane in deep crystalline rock biosphere [PDF]
Front Microbiol, 2015 RK would like to thank the Finnish Research Program on Nuclear Waste Management (grants SALAMI and RENGAS) for funding.The emerging interest in using stable bedrock formations for industrial purposes, e.g., nuclear waste disposal, has increased the need ...
Kietäväinen, Riikka, Purkamo, Lotta
core +2 more sources
Deep seismic studies in the southeastern Fennoscandian Shield
Геофизический журнал, 2015 The modern concept of the deep structure of the earth crust of the Ladoga-Bothnian zone, based on analysis and summing-up of all available information obtained in the last 35 years, is presented.
N. Sharov
doaj +4 more sources