Search Results - "Heilimo, Esa"

Hiekkapohja hydrothermal system – ore mineral, lithogeochemical and paleomagnetic evidence from the Paleoproterozoic Central Finland Granitoid Complex by Heilimo, Esa, Halonen, Sini, Mertanen, Satu, Niemi, Sami, Mikkola, Perttu

“…The Paleoproterozoic Svecofennian Central Finland Granitoid Complex (CFGC) has been regarded as an area of low mineralisation potential. The Hiekkapohja area,…”
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Constraints over the age of magmatism and subsequent deformation for the Neoarchean Kukkola Gneiss Complex, northern Fennoscandia by Skyttä, Pietari, Määttä, Maiju, Piippo, Simo, Kara, Jaakko, Käpyaho, Asko, Heilimo, Esa, O'Brien, Hugh

“…The Archean crust in northern Fennoscandia preserves a fragmentary geological record, making direct correlation among Archean domains challenging. This study…”
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Prolonged parallel chronology of distinct TTG types in the Lake Inari terrain, Arctic Fennoscandia: Implications for a stationary plume-related source by Joshi, Kumar Batuk, Halla, Jaana, Kurhila, Matti, Heilimo, Esa

“…•Long-term migmatization produced two types of TTGs between 2.9 and 2.6 Ga.•TTGs derived from sources related to a stationary plume.•Partial melting of TTGs…”
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New insights into the depositional facies of the Early Eocene Rus Formation, Bahrain by Amer, Aimen, Skyttä, Pietari, Ojala, Antti, Heilimo, Esa

“…Detailed geological field measurements combined with petrographic and mineralogical analyses of the Horse Racing Club outcrop, Bahrain, revealed new insights…”
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On the origin of Archaean TTGs by migmatization of mantle plume-related metabasalts: Insights from the Lake Inari terrain, Arctic Fennoscandia by Halla, Jaana, Joshi, Kumar Batuk, Luttinen, Arto, Heilimo, Esa, Kurhila, Matti

“…•Neoarchaean Lake Inari consists of TTGs and enclosed rafts of metabasalts.•Metabasalts may represent remnants of a plume-generated plateau.•TTGs formed by…”
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Neoarchean crustal recycling and mantle metasomatism: Hf–Nd–Pb–O isotope evidence from sanukitoids of the Fennoscandian shield by Heilimo, Esa, Halla, Jaana, Andersen, Tom, Huhma, Hannu

“…► Radiogenic isotopes indicate well-mixed mantle source to the Karelian province sanukitoids. ► Limited scatter in Pb-isotopes suggest insignificant…”
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Evidence of crustal growth during the Svecofennian orogeny: New isotopic data from the central parts of the Paleoproterozoic Central Finland Granitoid Complex by Heilimo, Esa, Mikkola, Perttu, Ahven, Marjaana, Huhma, Hannu, Lahaye, Yann, Virtanen, Ville J.

“…•The CFGC plutonic rocks were emplaced between 1.90 and 1.87 Ga.•The CFGC evidence significant hybrid reactions between magma pulses.•The CFGC was in active…”
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Arc magmatism associated with continental convergence in the SE segment of the UDMA, Iran: Insights from zircon geochronology and Hf–Sr–Nd–Fe isotopes by Babazadeh, Shahrouz, Ghalamghash, Jalil, Raeisi, Davood, Santosh, M., Furman, Tanya, Choi, Sung Hi, D'Antonio, Massimo, Heilimo, Esa, Cottle, John M.

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Geochemical and numerical constraints on Neoarchean plate tectonics by Halla, Jaana, van Hunen, Jeroen, Heilimo, Esa, Hölttä, Pentti

“…This paper discusses early Neoarchean (2.8–2.7 Ga) plate tectonics by integrating knowledge from new geochemical observations and numerical models. Based on a…”
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Both plume and arc: Origin of Neoarchaean crust as recorded in Veligallu greenstone belt, Dharwar craton, India by Dey, Sukanta, Pal, Sayantan, Balakrishnan, S., Halla, Jaana, Kurhila, Matti, Heilimo, Esa

“…•Diverse types of volcanic rocks occur in the Neoarchaean Veligallu greenstone belt.•Initially a tholeiitic basalt formed from a slightly depleted mantle in an…”
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Neoarchaean magmatism through arc and lithosphere melting: Evidence from eastern Dharwar Craton by Nandy, Jinia, Dey, Sukanta, Heilimo, Esa, Manikyamba, C.

“…The Neoarchaean era is characterized by rapid crustal growth corresponding to some fundamental global changes in geodynamic processes. However, the nature of…”
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Crustal growth and reworking during Lapland–Kola orogeny in northern Fennoscandia: U–Pb and Lu–Hf data from the Nattanen and Litsa–Aragub-type granites by Heilimo, Esa, Elburg, Marlina A., Andersen, Tom

“…In this paper we present new zircon U–Pb, Lu–Hf and REE data for Palaeoproterozoic intrusions (Nattanen– and Litsa–Aragub-type granites) of the Fennoscandian…”
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Archean crustal evolution of the Suomussalmi district as part of the Kianta Complex, Karelia: Constraints from geochemistry and isotopes of granitoids by Mikkola, Perttu, Huhma, Hannu, Heilimo, Esa, Whitehouse, Martin

“…This study presents new geochemical and isotopic data from granitoids belonging to the Kianta Complex of the Western Karelian terrane, collected from the…”
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Deformation-induced Pb isotope exchange between K-feldspar and whole rock in Neoarchean granitoids: Implications for assessing Proterozoic imprints by Halla, Jaana, Heilimo, Esa

“…We present Pb isotope and microstructural studies of deformed K-feldspar megacrystic granodiorites in the westernmost part of the Karelian Craton near the…”
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Relationships between sanukitoids and crust-derived melts and their implications for the diversity of Neoarchaean granitoids: A case study from Surmansuo and nearby areas, Eastern Finland by Mikkola, P., Heilimo, E., Huhma, H.

“…We present new isotopic data (U-Pb and Sm-Nd) from the Neoarchean granitoids of the Lentua complex, which is a part of the Western Karelia subprovince of the…”
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Svecofennian intra-orogenic gabbroic magmatism: A case study from Turku, southwestern Finland by Nevalainen, J., Väisänen, M., Lahaye, Y., Heilimo, E., Fröjdö, S.

“…Using single-grain zircon U-Pb dating by LA-MC-ICPMS and whole-rock geochemistry, we have studied the Palaeoproterozoic gabbroic rocks from Moisio in southwest…”
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The Paleoproterozoic Nattanen-type granites in northern Finland and vicinity - a postcollisional oxidized A-type suite by Heilimo, E., Halla, J., Lauri, L.S., Rämö, O.T., Huhma, H., Kurhila, M.I., Front, K.

“…The ~1.8 Ga Nattanen-type granites in the Finnish Lapland and western Kola Peninsula are found as several relatively small, high-level, discordant plutons that…”
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Age and petrology of the Kaapinsalmi sanukitoid intrusion in Suomussalmi, eastern Finland by Heilimo, E., Mikkola, P., Halla, J.

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