Results 31 to 40 of about 1,513 (118)

The crystalline basement of Estonia: rock complexes of the Palaeoproterozoic Orosirian and Statherian and Mesoproterozoic Calymmian periods, and regional correlations [PDF]

open access: yes, 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
core   +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

Lithotectonic elements and geological events in the Hengshan-Wutai-Fuping belt: A synthesis and implications for the evolution of the Trans-North China Orogen [PDF]

open access: yes, 1995
The Hengshan-Wutai-Fuping belt is located in the middle segment of the Trans-North China Orogen, a Palaeoproterozoic continental collisional belt along which the Eastern and Western blocks amalgamated to form the North China Craton.
Sun, M   +8 more
core   +4 more sources

Geochemistry of Late Triassic Weak Peraluminous A-Type Karimun Granite, Karimun Regency, Riau Islands Province [PDF]

open access: yes, 2017
DOI: 10.17014/ijog.4.1.21-37Karimun is an island with various geological deposits: tin, granite, sand, and others. The tin deposit in Karimun is related to the granitoid tin belt which extends from Myanmar to western Indonesia.
Irzon, R. (Ronaldo)
core   +1 more source

Timing of Svecofennian crustal growth and collisional tectonics in Åland, SW Finland [PDF]

open access: yes, 2004
In an effort to quantify the time parameter in the tectonomagmatic evolution of what has been called the Southern Svecofennian Arc Complex (SSAC) of SW Finland, advanced radiometric dating techniques have here been applied to rock groups of key ...
Carl Ehlers   +2 more
core   +1 more source

SIMS U-Pb, Sm-Nd isotope and geochemical study of an arkosite-amphibolite suite, Peräpohja Schist Belt: evidence for ca. 1.98 Ga A-type felsic magmatism in northern Finland [PDF]

open access: yes, 2005
In the northern and north-eastern part of the Peräpohja Schist Belt, northern Finland, an extensive supracrustal rock unit has been identified which is composed of alternating amphibolitic and arkositic components.
Eero Hanski, Hannu Huhma, Vesa Perttunen
core   +1 more source

Rapakivi K‐Feldspar Megacrysts in Monzogranitic Porphyry: Evidence for Magma Recharge and Mush Rejuvenation

open access: yesGeochemistry, Geophysics, Geosystems, Volume 26, Issue 12, December 2025.
Abstract The formation, storage, and evolution of granitic magmas are fundamental processes driving the growth of continental crust. While traditionally attributed to crystal fractionation in high‐melt fraction magma chambers, the model invoking low‐melt fraction crystal mushes has gained wide acceptance.
Wang Li   +5 more
wiley   +1 more source

Rates of sustainable forest harvest depend on rotation length and weathering of soil minerals [PDF]

open access: yes, 2014
Removals of forest biomass in the northeastern US may intensify over the coming decades due to increased demand for renewable energy. For forests to regenerate successfully following intensified harvests, the nutrients removed from the ecosystem in the ...
Blum, Joel D.   +3 more
core   +2 more sources

Machine Learning Model for Assessing Melting Pressure Conditions of the TTG Genesis: Implications for the Timing of the Onset of Global Plate Tectonics

open access: yesGeochemistry, Geophysics, Geosystems, Volume 26, Issue 11, November 2025.
Abstract Understanding the pressure conditions of the formation of tonalite‐trondhjemite‐granodiorite (TTG) series rocks is important, as these rocks are key constituents of the Archean continental crust. However, the detailed pressure history of Archean TTG gneisses remains ambiguous due to uncertainties surrounding their sources and the effects of ...
Denggang Lu   +6 more
wiley   +1 more source

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