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Geological History, Chronology and Magmatic Evolution of Merapi

Ralf Gertisser, Mary-Ann del Marmol, Christopher Newhall, Katie Preece Orcid Logo, Sylvain Charbonnier, Supriyati Andreastuti, Heather Handley, Jörg Keller

Merapi Volcano, Pages: 137 - 193

Swansea University Author: Katie Preece Orcid Logo

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DOI (Published version): 10.1007/978-3-031-15040-1_6

Abstract

This chapter provides a synthesis of the geological history, chronology and magmatic evolution of Merapi. Stratigraphic field and geochronological data are used to divide Merapi into three main evolutionary stages and associated volcanic edifices (Proto-, Old and New Merapi) and eight broad volcano-...

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Published in: Merapi Volcano
ISBN: 9783031150395 9783031150401
ISSN: 2195-3589 2195-7029
Published: Cham Springer International Publishing 2023
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa62692
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first_indexed 2023-02-20T09:20:04Z
last_indexed 2023-03-10T04:14:19Z
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spelling 2023-03-09T10:00:21.6896936 v2 62692 2023-02-20 Geological History, Chronology and Magmatic Evolution of Merapi f356499883a4264da682fa1ef72205ea 0000-0003-1478-4291 Katie Preece Katie Preece true false 2023-02-20 SGE This chapter provides a synthesis of the geological history, chronology and magmatic evolution of Merapi. Stratigraphic field and geochronological data are used to divide Merapi into three main evolutionary stages and associated volcanic edifices (Proto-, Old and New Merapi) and eight broad volcano-stratigraphic units to characterise the eruptive activity and structural evolution of the volcano through time. Complementary petrological, geochemical and isotopic data are used to characterise the eruptive products of Merapi and shed light on the geochemical evolution and petrogenetic processes. The data indicate that the eruptive products of Merapi are mainly basaltic andesite of both medium-K and high-K type and support a two-stage petrogenetic model, where primary magmas are derived from a heterogenous, Indian Ocean MORB-like mantle source metasomatised by slab-derived components. Subsequently, these magmas are modified during transfer through the crust by complex magmatic differentiation processes, including contamination by carbonate rocks of the local upper crust. The available data indicate that, since ~ 1900 14C y BP, the lavas and pyroclastic rocks of Merapi are essentially of the high-K type and that regular geochemical variations with systematic shifts in whole rock SiO2 content occurred since at least the Late Holocene, although erupted magma compositions have remained broadly uniform since the mid-twentieth century. Book chapter Merapi Volcano 137 193 Springer International Publishing Cham 9783031150395 9783031150401 2195-3589 2195-7029 Merapi; Stratigraphy; Chronology; Petrology; Geochemistry; Isotope geochemistry; Petrogenesis; Magmatic evolution; Merapi-type volcanism 2 2 2023 2023-02-02 10.1007/978-3-031-15040-1_6 COLLEGE NANME Geography COLLEGE CODE SGE Swansea University 2023-03-09T10:00:21.6896936 2023-02-20T09:06:46.2712958 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Geography Ralf Gertisser 1 Mary-Ann del Marmol 2 Christopher Newhall 3 Katie Preece 0000-0003-1478-4291 4 Sylvain Charbonnier 5 Supriyati Andreastuti 6 Heather Handley 7 Jörg Keller 8
title Geological History, Chronology and Magmatic Evolution of Merapi
spellingShingle Geological History, Chronology and Magmatic Evolution of Merapi
Katie Preece
title_short Geological History, Chronology and Magmatic Evolution of Merapi
title_full Geological History, Chronology and Magmatic Evolution of Merapi
title_fullStr Geological History, Chronology and Magmatic Evolution of Merapi
title_full_unstemmed Geological History, Chronology and Magmatic Evolution of Merapi
title_sort Geological History, Chronology and Magmatic Evolution of Merapi
author_id_str_mv f356499883a4264da682fa1ef72205ea
author_id_fullname_str_mv f356499883a4264da682fa1ef72205ea_***_Katie Preece
author Katie Preece
author2 Ralf Gertisser
Mary-Ann del Marmol
Christopher Newhall
Katie Preece
Sylvain Charbonnier
Supriyati Andreastuti
Heather Handley
Jörg Keller
format Book chapter
container_title Merapi Volcano
container_start_page 137
publishDate 2023
institution Swansea University
isbn 9783031150395
9783031150401
issn 2195-3589
2195-7029
doi_str_mv 10.1007/978-3-031-15040-1_6
publisher Springer International Publishing
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Biosciences, Geography and Physics - Geography{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Geography
document_store_str 0
active_str 0
description This chapter provides a synthesis of the geological history, chronology and magmatic evolution of Merapi. Stratigraphic field and geochronological data are used to divide Merapi into three main evolutionary stages and associated volcanic edifices (Proto-, Old and New Merapi) and eight broad volcano-stratigraphic units to characterise the eruptive activity and structural evolution of the volcano through time. Complementary petrological, geochemical and isotopic data are used to characterise the eruptive products of Merapi and shed light on the geochemical evolution and petrogenetic processes. The data indicate that the eruptive products of Merapi are mainly basaltic andesite of both medium-K and high-K type and support a two-stage petrogenetic model, where primary magmas are derived from a heterogenous, Indian Ocean MORB-like mantle source metasomatised by slab-derived components. Subsequently, these magmas are modified during transfer through the crust by complex magmatic differentiation processes, including contamination by carbonate rocks of the local upper crust. The available data indicate that, since ~ 1900 14C y BP, the lavas and pyroclastic rocks of Merapi are essentially of the high-K type and that regular geochemical variations with systematic shifts in whole rock SiO2 content occurred since at least the Late Holocene, although erupted magma compositions have remained broadly uniform since the mid-twentieth century.
published_date 2023-02-02T04:22:31Z
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score 11.016235

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