Acid deposition from the Russian Kola Peninsula: Are sensitive fish populations in north-eastern Finnish Lapland affected?

1995 ◽  
Vol 85 (2) ◽  
pp. 439-444 ◽  
Author(s):  
A. Lappalainen ◽  
O. M�h�nen ◽  
J. Erkinaro ◽  
M. Rask ◽  
E. Niemel�
Keyword(s):  
Kola Peninsula ◽  
Acid Deposition ◽  
Fish Populations ◽  
Finnish Lapland ◽  
North Eastern

Otolith microchemistry of Nezumia aequalis (Pisces: Macrouridae) from widely different habitats in the Atlantic and Mediterranean

2003 ◽  
Vol 83 (4) ◽  
pp. 883-886 ◽  
Author(s):  
Sarah C. Swan ◽  
John D.M. Gordon ◽  
Beatriz Morales-Nin ◽  
Tracy Shimmield ◽  
Terrie Sawyer ◽  
...  
Keyword(s):  
Inductively Coupled Plasma ◽  
Fish Populations ◽  
Reykjanes Ridge ◽  
Inductively Coupled ◽  
The North ◽  
Microchemical Analysis ◽  
Physical Environments ◽  
Eastern Atlantic Ocean ◽  
North Eastern ◽  
Plasma Mass Spectrometry

Otoliths were obtained from Nezumia aequalis, a small macrourid that is widely distributed throughout the Atlantic and Mediterranean—two very different physical environments. Microchemical analysis of the otoliths was carried out using solution-based inductively coupled plasma mass spectrometry of whole otoliths. Significant differences between fish populations were found for concentrations of the elements Li and Sr. Only 54% of the samples were correctly classified by area using discriminant analysis. Otolith samples from the Reykjanes Ridge were most easily distinguished. The results are discussed in relation to trace element concentrations in the waters of the north-eastern Atlantic Ocean and the Mediterranean Sea.

Acid Deposition and Effects in Nordic Europe. Damage to Fish Populations in Scandinavia Continue to Apace

1986 ◽  
pp. 65-74 ◽  
Author(s):  
B. O. Rosseland ◽  
O. K. Skogheim ◽  
I. H. Sevaldrud
Keyword(s):  
Acid Deposition ◽  
Fish Populations

Evolution and metallogenic settings of the Pados-Tundra chrome-bearing ultramafic complex, Kola Peninsula: isotope Sm-Nd and U-Pb evidence

2020 ◽  
Author(s):  
Pavel Serov ◽  
Tamara Bayanova ◽  
Ekaterina Steshenko ◽  
Eugenii Kunakkuzin ◽  
Elena Borisenko
Keyword(s):  
Kola Peninsula ◽  
Layered Series ◽  
North East ◽  
The North ◽  
Ultramafic Complex ◽  
Study Results ◽  
Partially Observed ◽  
North Eastern ◽  
Igneous Province ◽  
Enclosing Rocks

<p>The Pados-Tundra massif is located in the western Kola Peninsula and included in the Notozero ultrabasic rock complex (Vinogradov, 1971). The intrusion occurs as a body of ca. 13 km<sup>2</sup> stretched out to the north-east. Enclosing rocks are Archaean granite- and granodiorite-gneisses. There are three major areas in the massif structure (Mamontov, Dokuchaeva, 2005): endocontact area, rhythmically layered series, and upper area. The endocontact area with thickness of 10-20 m occurs as schistose amphibole rocks formed during the metamorphism of main rocks. The rhythmically layered series occurs as a number of rocks from dunites to orthopyroxenites and composes most of the massif. There are 7 rhythms in total, each of which starts with dunites and ends with orthopyroxenites. Dykes of mezo- and leucocratic gabbro, diorites, and hornblendites are developed in the series rocks. The upper gabbronorite area can be partially observed in the north-eastern massif. Presumably, its major volume has been overlapped by enclosing rocks as a result of the overthrust. In the massif, there are 4 horizons of disseminated stratiform chromite ores, which are confined to dunites and serpentinites, as well as to a number of lens- and column-like bodies (podiform type) of chromite ores (Mamontov, Dokuchaeva, 2005; Barkov et al., 2017). Previous isotope-geochronological studies have determined the massif rock age of 2.15 Ga (Shapkin et al., 2008). However, further geological field observations and analysis of the obtained data assume that the intrusive is much older.</p><p>New Sm-Nd geochronological data indicate that the massif rocks and its rhythmically layered series are of Paleoproterozoic age, which is similar to the age of the Cu-Ni-Co-Cr-PGE ore-magmatic system of the Fennoscandian Shield (Amelin et al., 1995; Bayanova et al., 2014, 2017, 2019; Hanski et al., 2001; Huhma et al., 1990, 1996; Layered intrusions ...; 2004; Maier, Hanski, 2017; Mitrofanov et al., 2019; Peltonen, Brugmann, 2006; Puchtel et al., 2001; Serov, 2008; Serov et al., 2014; Sharkov, 2006; Sharkov, Smolkin, 1997). Complex Sm-Nd and U-Pb isotope-geochronological studies have allowed determining the major formation and alteration stages of the Pados-Tundra complex rocks:</p><p>–  formation of the rhythmically layered series rocks of the intrusive 2485±77 Ma, harzburgites of the layered series – 2475±38 Ma;</p><p>– metamorphism of the massif rocks at the turn of 1.95 - 1.9 Ga;</p><p>– postmetamorphic cooling of the complex rocks tо 650°-600°С at the turn of 1872±76 Ma (Sm-Nd for metamorphic minerals) and then to 450°-400°С (U-Pb for rutile, 1804±10 Ma).</p><p>Therefore, the study results expand geography the East-Scandinavian large Palaeoproterozoic igneous province and are prospective for further study of analogous ultramafite-mafite complexes.</p><p>All investigations and were supported by the RFBR 18-05-70082, 18-35-00246, Presidium RAS Program #48 and are in frame of the Theme of Scientific Research 0226-2019-0053.</p>

Physical and chemical characterisation of small subarctic headwater lakes in Finnish Lapland and the Kola Peninsula

2000 ◽  
Vol 27 (1) ◽  
pp. 316-320 ◽  
Author(s):  
Tom Blom ◽  
Atte Korhola ◽  
Jan Weckström ◽  
Tasmin Laing ◽  
Jeffrey Snyder ◽  
...  
Keyword(s):  
Kola Peninsula ◽  
Finnish Lapland ◽  
Headwater Lakes ◽  
Physical And Chemical
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