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Petrology x Earth Sciences and Geography x clear all

Age and Geochemistry of the Central American Forearc Basement (DSDP Leg 67 and 84): Insights into Mesozoic Arc Volcanism and Seamount Accretion on the Fringe of the Caribbean LIP

Jörg Geldmacher, Kaj Hoernle, Paul Van Den Bogaard, Folkmar Hauff and Andreas Klügel.

in Journal of Petrology

October 2008; p ublished online October 2008 .

Journal Article. Subjects: Petrology. 17642 words.

The igneous forearc basement along the Pacific coast of northern Central America (between southern Mexico and Costa Rica) comprises a highly tectonized accretionary assemblage of igneous...

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Age, Composition and Thermal Characteristics of South African Off-Craton Mantle Lithosphere: Evidence for a Multi-Stage History

P. E. Janney, S. B. Shirey, R. W. Carlson, D. G. Pearson, D. R. Bell, A. P. Le Roex, A. Ishikawa, P. H. Nixon and F. R. Boyd.

in Journal of Petrology

September 2010; p ublished online August 2010 .

Journal Article. Subjects: Petrology. 21532 words.

A mineral chemistry and whole-rock major element, platinum group element (PGE), and Re–Os isotope dataset is presented for a large suite of mantle xenoliths from 13 kimberlites that erupted...

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Age, Geochemistry and Petrogenesis of the Ultramafic Pipes in the Ivrea Zone, NW Italy

G. GARUTI, F. BEA, F. ZACCARINI and P. MONTERO.

in Journal of Petrology

February 2001; p ublished online February 2001 .

Journal Article. Subjects: Petrology. 10850 words.

Pipe-like ultramafic bodies, hosting Ni–Cu–PGE sulphide deposits, intrude the Main Gabbro and the roof metasediments of the Ivrea Zone, NW Italy. These bodies were emplaced at 287 ± 3 Ma...

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Age, Origin and Cooling History of the Coronel João Sá Pluton, Bahia, Brazil

LEON E. LONG, CHRISTINA H. CASTELLANA and ALCIDES N. SIAL.

in Journal of Petrology

February 2005; p ublished online October 2004 .

Journal Article. Subjects: Petrology. 8767 words.

In north-east Brazil, Archean and Paleoproterozoic cratonic blocks are enclosed within a network of Brasiliano-age (0·7–0·55 Ga) metasedimentary foldbelts. The unfoliated Coronel João Sá...

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The Albian–Turonian Island Arc Rocks of Tobago, West Indies: Geochemistry, Petrogenesis, and Caribbean Plate Tectonics

Iain Neill, Andrew C. Kerr, Alan R. Hastie, James L. Pindell and Ian L. Millar.

in Journal of Petrology

August 2013; p ublished online May 2013 .

Journal Article. Subjects: Petrology. 14734 words.

An elemental and radiogenic isotope study of Cretaceous island arc rocks on Tobago, West Indies, reveals the magmatic processes taking place at the eastern edge of the Pacific-derived...

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Alkali Picrites Formed by Melting of Old Metasomatized Lithospheric Mantle: Manîtdlat Member, Vaigat Formation, Palaeocene of West Greenland

LOTTE M. LARSEN, ASGER K. PEDERSEN, BJØRN SUNDVOLL and ROBERT FREI.

in Journal of Petrology

January 2003; p ublished online January 2003 .

Journal Article. Subjects: Petrology. 22340 words.

Alkaline picrites and basalts constitute 20–200 m of lava flows and hyaloclastites in the middle part of an ∼2 km thick succession of tholeiitic picrites and basalts formed during...

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Alkaline and Carbonate-rich Melt Metasomatism and Melting of Subcontinental Lithospheric Mantle: Evidence from Mantle Xenoliths, NE Bavaria, Bohemian Massif

LukአAckerman, Petr ŠpaČek, TomአMagna, JaromÍr Ulrych, Martin Svojtka, Ernst Hegner and Kadosa Balogh.

in Journal of Petrology

December 2013; p ublished online November 2013 .

Journal Article. Subjects: Petrology. 16298 words.

Peridotite xenoliths hosted by Cenozoic basanite lava flows (21·2–23·5 Ma) occur at several localities in the western continuation of the Ohře/Eger rift (Central European Volcanic Province)...

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Alkaline Lavas in the Volcanic Front of the Western Mexican Volcanic Belt: Geology and Petrology of the Ayutla and Tapalpa Volcanic Fields

KEVIN RIGHTER and JOSÉ ROSAS-ELGUERA.

in Journal of Petrology

December 2001; p ublished online December 2001 .

Journal Article. Subjects: Petrology. 11536 words.

The Plio-Quaternary Ayutla and Tapalpa volcanic fields in the volcanic front of the western Mexican Volcanic Belt (WMVB) contain a wide variety of alkaline volcanic rocks, rather than only...

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The Alkaline–Peralkaline Tamazeght Complex, High Atlas Mountains, Morocco: Mineral Chemistry and Petrological Constraints for Derivation from a Compositionally Heterogeneous Mantle Source

Michael A. W. Marks, Julian Schilling, Ian M. Coulson, Thomas Wenzel and Gregor Markl.

in Journal of Petrology

June 2008; p ublished online April 2008 .

Journal Article. Subjects: Petrology. 18085 words.

The Eocene Tamazeght complex, High Atlas Mountains, Morocco is a multiphase alkaline to peralkaline intrusive complex. A large variety of rock types (including pyroxenites, glimmerites,...

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