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Rapakivi Granites and Related Rocks
1st Edition - August 1, 2023
Authors: Ilmari J Haapala, Roberto Dall’Agnol, Aku Heinonen
Paperback ISBN:
9 7 8 - 0 - 1 2 - 8 2 1 4 1 5 - 2
eBook ISBN:
9 7 8 - 0 - 1 2 - 8 2 1 4 1 6 - 9
Rapakivi Granites and Related Rocks tells the story of Rapakivi granites, a group of granitic rocks characterized by specific texture (presence of plagioclase-mantled ovoidal to… Read more
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Rapakivi Granites and Related Rocks tells the story of Rapakivi granites, a group of granitic rocks characterized by specific texture (presence of plagioclase-mantled ovoidal to subhedral alkali feldspar megacrysts, two generations of quartz and feldspars) and A-type geochemical composition. The book includes research and abundant geochemical and isotopic data combined with an understanding of geotectonic processes that allow more detailed tectonic and petrological modeling of rapakivi granite magmatism and associated ore mineralization. Well-known examples are found as anorogenic or post-orogenic batholith- to stock-sized intrusive complexes in the Precambrian cratons of Ukraine, Fennoscandia, South Greenland, Canada, United States, Brazil, Venezuela and Siberia.
The current knowledge of the rapakivi granites is largely based on the achievements of three International Geological Correlation Programme projects: IGCP–315 (Rapakivi Granites and Related Rocks) in in 1991–1996, IGCP–426 (Granite Systems and Proterozoic Lithospheric Processes) in 1998–2002, and IGCP–510 (A-type Granites and Related Rocks Through Time) in 2005–2009. After these projects, the research has continued actively utilizing enhanced geochemical methods, in situ geochemistry in particular.
- Includes more than 200 figures with full color geological maps and photographs
- Features chapters dealing with metallogeny and mineral deposits which will be useful for those working in exploration and mining companies
- Presents a discussion of Paleomagnetism of rapakivi granites which can be used to reconstruct ancient supercontinents and to decipher their evolution
1. Historical Background and Definitions 2. Rapakivi Texture and Rapakivi Granite 3. State of the Art: Discussion on Various Aspects of Rapakivi Granite and Related Rocks 4. Intensive Parameters 5. Origin of Rapakivi Granite Magmas 6. Origin of Mantled Alkali Feldspar Megacrysts 7. Metallogeny 8. Granitoids Approaching Rapakivi Granites
- No. of pages: 400
- Language: English
- Published: August 1, 2023
- Imprint: Elsevier
- Paperback ISBN: 9780128214152
- eBook ISBN: 9780128214169
IJ
Ilmari J Haapala
Ilmari Haapala received an MSc in geology and mineralogy in 1963, and PhD in 1966 at the University of Helsinki. He has worked as geologist, state geologist and acting head of the Exploration Department at the Geological Survey of Finland in 1966 –2001, and as professor of geology and mineralogy at University of Helsinki in 1982 –2002. Dr. Haapala has lead many Finnish and international research projects, including rapakivi granite projects in Finland, China, USA (New Mexico and Nevada) and Namibia. Organized eight international symposia. Edited several Finnish and English books on economic geology and granite petrology. Chairman of the Geological Society and Mineralogical Society of Finland. Member of the Finnish National Academy of Science and Letters since 1985.Fellow member of the Geological Society of America, the Mineralogical Society of Great Britain and Ireland, and the Geological Society of London.
Affiliations and expertise
Professor Emeritus, University of Helsinki, FinlandRD
Roberto Dall’Agnol
Roberto Dall’Agnol worked as geologist in the RADAM project during 1973–77 and completed his Doctor thesis at the Paul Sabatier University in Toulouse, France. He acted as professor of igneous petrology at the Geosciences Institute of Federal University of Pará, Brazil from 1980–2014. At present, he participates in the Graduate Program of Geology and Geochemistry of that institution and leads a research group in the Vale Institute of Technology in Belém, Pará, Brazil. Co-leader of the IGCP Project 510 (A-type Granites and Related Rocks trough Time) in 2005–10, IGCP Project 599 (Changing Early Earth) in 2011–14. Leader of the Project “Magmatism, crustal evolution and metallogenesis of the Carajás and adjacent provinces of the Amazonian craton” in 2000–06, and of other national geoscientific projects in Brazil until present. Guest editor of special volumes in Lithos, Journal of South American Earth Sciences, and Canadian Mineralogist
Affiliations and expertise
Professor, Institute of Federal University of Pará, BrazilAH
Aku Heinonen
Aku Heinonen studied geology and mineralogy in the University of Helsinki (UH) and graduated with his MSc in 2007 and PhD in 2012. He was employed as a teaching and research assistant, doctoral researcher, academic affairs officer, and postdoctoral researcher at the Department of Geology (later Department of Geosciences and Geography, UH) in 2007–16 and as a postdoctoral fellow at the Institute of Seismology (UH) in 2016–17. He worked as a Lecturer in Petrology (UH) in 2017–22 and was appointed as a Docent (adjunct professor, in petrology, UH) and as the director of the BSc Programme in Geosciences and MSc Programme in Geology and Geophysics (UH) in 2020. Heinonen worked as the director of the national FIN-GEO education collaboration network in 2020–2022 and in 2022 he was appointed as the Head of Science and Innovations at the Geological Survey of Finland (GTK). Heinonen participated in the IGCP 510 (A-type Granites and Related Rocks through Time) in 2007–2010 and conducted his doctoral and postdoctoral research on the isotope geochemistry of rapakivi granites and associated massif-type anorthositic rocks from southern Finland, northern Brazil, and southwestern USA in 2007–2016. He is a member and acting secretary of the Finnish National Committee of Geology and the upcoming Finnish National Delegate for the EuroGeoSurvey organization (2023–).
Affiliations and expertise
Head of Science and Innovations, Geological Survey of Finland GTK, Finland