Results 51 to 60 of about 297,722 (205)

Geochemical and boron isotopic compositions of tourmalines from selected gold-mineralised and barren rocks in SW Finland [PDF]

Bulletin of the Geological Society of Finland, 2010
Tourmaline-bearing rocks and a number of gold occurrences coexist in southwestern Finland, in a region where extensive magmatism and hydrothermal systems occurred during the Svecofennian orogeny, 1.9-1.8 Ga ago.
M. Talikka, S. Vuori
doaj   +1 more source

Age and correlation of supracrustal rocks in the Frederikshåbs Isblink area

Rapport Grønlands Geologiske Undersøgelse, 1969
Eight weeks field work was spent in the Frederikshåbs Isblink area as a continuation to the investigations carried out in 1967. Half the time was used to further the work on Dalagers Nunatakker and half was spent on the gneisses and supracrustal rocks north of the Isblink in an attempt at correlation across the Isblink between the gneiss-amphibolite ...
openaire   +2 more sources

Sediment Characteristics and Architecture of Triangular‐Shaped Murtoos: A Test of Murtoo Formation Hypotheses

Earth Surface Processes and Landforms, Volume 51, Issue 9, September 2026.
Murtoos and murtooized terrains are new types of subglacial landforms found in the Fennoscandian Ice Sheet (FIS) and Cordilleran Ice Sheet (CIS) regions. LiDAR‐based morphometric analyses have revealed substantial morphometric diversity among murtoos and murtoo‐related landforms, while sedimentological excavations have documented a wide range of ...
A. E. K. Ojala, S. Soini, J. Mäkinen, J. Hovikoski, P. Sarala, A. Hepburn, K. Kajuutti, E. Ahokangas, J. Kautto   +8 more
wiley   +1 more source

Integrated Multi‐Physics Characterisation of the Northern Kiruna Mining District With Machine‐Learning‐Assisted Interpretation

Geophysical Prospecting, Volume 74, Issue 7, September 2026.
ABSTRACT Integrated earth modelling aims to combine all available geoscientific information to derive one common earth model. However, combining multiple parameters in a meaningful way remains challenging. In this study, we aim to improve mineral exploration workflows through the integration of new magnetotelluric data with other geophysical and ...
Oskar Rydman, Ervin Veress, Maxim Yu. Smirnov, Tobias E. Bauer, Thorkild M. Rasmussen, Niklas Juhojuntti   +5 more
wiley   +1 more source

Pre-Nagssugtoqidian crustal evolution in West Greenland: geology, geochemistry and deformation of supracrustal and granitic rocks north-east of Kangaatsiaq

, 2006
The area north-east of Kangaatsiaq features polyphase grey orthogneisses, supracrustal rocks and Kangaatsiaq granite exposed within a WSW–ENE-trending synform.
Moyen, Jean-François, Watt, Gordon R
core   +1 more source

Chervurt formation of the Kolmozero-Voron'ya belt and Keivy domain: A geodynamic reference point for spatial and temporal heterogeneity during the formation of the ancient median massif

Vestnik MGTU
The paper considers the possible correlation of the rocks of the Chervurt Formation in the Kolmozero-Voron'ya zone with its constituent supracrustal complexes and the formations of the adjacent Keivy domain, as well as the role that metasedimentary rocks
Kozlov N. E., Sorokhtin N. O.
doaj   +1 more source

Petrogenesis and Tectonic Evolution of Cenozoic Magmatism in the Southernmost Northern Andes: Insights From Zircon Petrochronology

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 8, August 2026.
Abstract This study integrates new zircon U–Pb ages, zircon εHf(t)–δ18O isotopic data, and whole‐rock geochemistry to refine the temporal and spatial framework of magmatism in the southern Northern Andes (SNA) from ∼65 to 6 Ma. The San Lucas, Catamayo, Portachuela, and Gonzanamá batholiths and magmatic suites, along with Late Miocene plutons, display ...
J. Iglesias, C. Witt, L. C. Sandoval Espinel, M. Zattin, M. Poujol, O. Bruguier, O. Poma, M. J. Hernández, O. Averbuch, M. Seyler, D. Bosch, F. Chanier, S. Ventalon, C. Liorzou, V. Bosse   +14 more
wiley   +1 more source

Granitoide der europäischen Varisziden : ein Einblick in ihre Platznahme- und tektonometamorphe Geschichte [PDF]

, 2008
This work analyses several granitic bodies of the Variscan Orogen of Central and Western Europe in order to improve our knowledge about different aspects of their evolution, regarding their ascent and emplacement mechanisms, as well as their deformation ...
Galadí-Enríquez, Elena
core  

The Kummitsoiva komatiite complex and its satellites in northern Finland [PDF]

Bulletin of the Geological Society of Finland, 1983
The Kummitsoiva komatiite complex and its satellites, regarded either as Archean or Proterozoic in age, consist principally of amphibole- chlorite rocks corresponding chemically to basaltic komatiite of the Geluk type in South Africa.
M. Saverikko
doaj   +1 more source

Archaean gneisses and supracrustal rocks of the Tingmiarmiut region, South-East Greenland

Rapport Grønlands Geologiske Undersøgelse, 1983
In August 1981 a mapping programme was initiated which aimed at the production of the 1:500000 geological map sheet of the Tingmiarmiut-Angmagssalik region (sheet No. 14) (Escher & Nielsen, 1982). In 1982 this programme was eontinued in the Tingmiarmiut Fjord region (fig. 27). Due to exceptionally bad ice conditions and other misfortunes enly a few
J.C Escher, T.F.D Nielsen
openaire   +2 more sources