Sally A. Gibson

University of Cambridge

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Co-Authors

R. N. Thompson

Durham University

Alan P. Dickin

McMaster University

Jason Day

University of Cambridge

Matthew Gleeson

Planetary Science Institute

O. H. Leonardos

Universidade de Brasília

Michael J. Stock

University of Oklahoma

J. G. Mitchell

University of Massachusetts Chan Medical School

Catharina Heckel

Goethe University Frankfurt

Philip T. Leat

University of Leicester

José Affonso Brod

Universidade Federal de Goiás

Cooperative Institutions

University of Cambridge

British Antarctic Survey

Planetary Science Institute

University of California, Berkeley

University of Iceland

Durham University

University of Bristol

Instituto de Geociencias

University of Oxford

Natural Environment Research Council

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High-Ti and low-Ti mafic potassic magmas: Key to plume-lithosphere interactions and continental flood-basalt genesis

Earth and Planetary Science Letters (1995)

Sally A. Gibson R. N. Thompson Alan P. Dickin O. H. Leonardos

Flood basalt

Mantle plume

10.1016/0012-821x(95)00179-g

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Citations (219)

The Late Cretaceous Impact of the Trindade Mantle Plume: Evidence from Large-volume, Mafic, Potassic Magmatism in SE Brazil

Journal of Petrology (1995)

Sally A. Gibson R. N. Thompson O. H. Leonardos Alan P. Dickin J. G. Mitchell

Journal Article The Late Cretaceous Impact of the Trindade Mantle Plume: Evidence from Large-volume, Mafic, Potassic Magmatism in SE Brazil Get access S. A. GIBSON, S. A. GIBSON * 1DEPARTMENT OF GEOLOOICAL SCIENCES, UNIVERSITY OF DURHAMSOUTH ROAD, DURHAM DH1 3LE, UK Corresponding author Search for other works by this author on: Oxford Academic Google Scholar R. N. THOMPSON, R. N. THOMPSON 1DEPARTMENT OF GEOLOOICAL SCIENCES, UNIVERSITY OF DURHAMSOUTH ROAD, DURHAM DH1 3LE, UK Search for other works by this author on: Oxford Academic Google Scholar O. H. LEONARDOS, O. H. LEONARDOS 2DEPARTMENTO DE GEOQUIMICA E RECURSOS MINERAIS, INSTITUTO DE GEOCIENCIASUNIVERSIDADE DE BRASILIA, 70910 BRASILIA DF, BRAZIL Search for other works by this author on: Oxford Academic Google Scholar A. P. DICKIN, A. P. DICKIN 3DEPARTMENT OF GEOLOGY, McMASTER UNIVERSITY1280 MAIN STREET WEST, HAMILTON, ONTARIO, CANADA L83 4M1 Search for other works by this author on: Oxford Academic Google Scholar J. G. MITCHELL J. G. MITCHELL 4DEPARTMENT OF PHYSICS, THE UNIVERSITY, NEWCASTLEUPON TYNE NE1 7RU, UK Search for other works by this author on: Oxford Academic Google Scholar Journal of Petrology, Volume 36, Issue 1, February 1995, Pages 189–229, https://doi.org/10.1093/petrology/36.1.189 Published: 01 February 1995 Article history Received: 07 February 1994 Revision received: 05 July 1994 Published: 01 February 1995

Mantle plume

10.1093/petrology/36.1.189

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Citations (422)

Chronology and phenomenology of the 1982 and 2015 Wolf volcano eruptions, Galápagos Archipelago

Journal of Volcanology and Geothermal Research (2019)

Benjamin Bernard Michael J. Stock Diego Coppola Silvana Hidalgo Marco Bagnardi

Caldera

Effusive eruption

Archipelago

Lateral eruption

Scoria

Dense-rock equivalent

Lava field

Lava dome

10.1016/j.jvolgeores.2019.02.013

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Citations (21)

New insights into volatile-rich mantle metasomatism at the Bultfontein diamond mine, Kimberley, South Africa

International Kimberlite Conference Extended Abstracts: 2008 (2019)

Charlotte Jackson Sally A. Gibson

Metasomatism

10.29173/ikc3842

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Citations (1)

Ankerite carbonatite from Swartbooisdrif, Namibia: the first evidence for magmatic ferrocarbonatite

Contributions to Mineralogy and Petrology (2002)

R. N. Thompson Patrick J. Smith Sally A. Gibson Dave Mattey Alan P. Dickin

Carbonatite

Ankerite

10.1007/s00410-002-0350-0

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Citations (57)

THE KAMAFUGITE-CARBONATITE ASSOCIATION IN THE ALTO PARANAÍBA IGNEOUS PROVINCE (APIP) SOUTHEASTERN BRAZIL

Revista Brasileira de Geociências (2000)

José Affonso Brod Sally A. Gibson ROBERT N. THOMPSON Tereza Cristina Junqueira-Brod Hildor José Seer

The Late-Cretaceous Alto Paranaíba Igneous Province (APIP) comprises a variety of ultrapotassic rock-types, including kimberlites, lamproites and large volumes of kamafugites, in addition to a number of carbonatite-bearing plutonic alkaline complexes. Phlogopite-picrites are ultramafic fine-grained rocks typically composed of olivine phenocrysts set in a groundmass of phlogopite, carbonate, perovskite, apatite and chromite. They occur as dyke swarms in the carbonatite complexes, but are also scattered throughout the Province. The phlogopite-picrites represent the peralkaline, ultrapotassic, carbonate-rich, silicate magmas parental to the carbonatite-bearing complexes, and have strong chemical affinity with kamafugites. Together with petrographic similarities observed between silicate rocks from the carbonatite complexes and xenoliths occurring in APIP kamafugites, this provides a strong link between kamafugitic and carbonatitic magmatism in the Province.

Carbonatite

Phlogopite

Ultramafic rock

Large igneous province

Xenolith

Chromite

10.25249/0375-7536.2000303408412

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Citations (43)

WALL, F. & ZAITSEV, A. N. (eds) 2004. Phoscorites and Carbonatites from Mantle to Mine: the Key Example of the Kola Alkaline Province. The Mineralogical Society Series no. 10. xv + 498 pp. London: The Mineralogical Society of Great Britain and Ireland. Price £89.00 (hard covers); introductory price £49.00. ISBN 0 903056 22 4

Geological Magazine (2006)

Sally A. Gibson

WALL, F. & ZAITSEV, A. N. (eds) 2004. Phoscorites and Carbonatites from Mantle to Mine: the Key Example of the Kola Alkaline Province. The Mineralogical Society Series no. 10. xv + 498 pp. London: The Mineralogical Society of Great Britain and Ireland. Price £89.00 (hard covers); introductory price £49.00. ISBN 0 903056 22 4 - Volume 143 Issue 1

Carbonatite

10.1017/s0016756806261946

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Citations (0)

The carbon budget and carbon isotope composition of flood basalt magmas

AGU Fall Meeting Abstracts (2018)

Benjamin A. Black A. Hernandez Nava Ellen Gales Sally A. Gibson Robert J. Bodnar

Flood basalt

Carbon fibers

Source

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The lithospheric mantle as a “sink” and “source” in global volatile cycles

Goldschmidt Abstracts (2021)

Sally A. Gibson

Sink (geography)

Hotspot (geology)

10.7185/gold2021.5093

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Upper mantle mush zones beneath low melt flux ocean island volcanoes: insights from Isla Floreana, Galápagos

EarthArXiv (California Digital Library) (2020)

Matthew Gleeson Sally A. Gibson Michael J. Stock

The physicochemical characteristics of sub-volcanic magma storage regions have important implications for magma system dynamics and pre-eruptive behaviour. The architecture of magma storage regions located directly above high buoyancy flux mantle plumes (such as Kīlauea, Hawai’i and Fernandina, Galápagos) are relatively well understood. However, far fewer constraints exist on the nature of magma storage beneath ocean island volcanoes that are distal to the main zone of mantle upwelling or above low buoyancy flux plumes, despite these systems representing a substantial proportion of ocean island volcanism globally. To address this, we present a detailed petrological study of Isla Floreana in the Galápagos Archipelago, which lies at the periphery of the upwelling mantle plume and is thus characterised by an extremely low flux of magma into the lithosphere. Detailed in situ major and trace element analyses of crystal phases within exhumed cumulate xenoliths, lavas and scoria deposits, indicate that the erupted crystal cargo is dominated by disaggregated crystal-rich material (i.e., mush or wall rock). Trace element disequilibria between cumulus phases and erupted melts, as well as trace element zoning within the xenolithic clinopyroxenes, reveals that reactive porous flow (previously identified beneath mid-ocean ridges) is an important process of melt transport within crystal-rich magma storage regions. In addition, application of three petrological barometers reveal that the Floreana mush zones are located in the upper mantle, at a depth of 23.7±5.1 km. Our barometric results are compared to recent studies of high melt flux volcanoes in the western Galápagos, and other ocean island volcanoes worldwide, and demonstrate that the flux of magma from the underlying mantle source represents a first-order control on the depth and physical characteristics of magma storage.

Scoria

Mantle plume

Magma chamber

Xenolith

Caldera

Trace element

10.31223/osf.io/4w8vr

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Citations (0)