G. Witt-Eickschen

University of Cologne

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Trends

Author Order

Document Type

Co-Authors

H. A. Seck

University of Cologne

H. Palme

Senckenberg Research Institute and Natural History Museum Frankfurt/M

Hugh O’Neill

Monash University

U. Kramm

RWTH Aachen University

Reiner Klemd

Friedrich-Alexander-Universität Erlangen-Nürnberg

B. Harte

University of Edinburgh

Christos Evangelakakis

University of Münster

АГ

А.Г. Гурбанов

Institute of Geology of Ore Deposits Petrography Mineralogy and Geochemistry

Gerhard Schmidt

Christoffel Blinden Mission

Jürgen Gose

Friedrich-Alexander-Universität Erlangen-Nürnberg

Cooperative Institutions

University of Cologne

University of Münster

Friedrich-Alexander-Universität Erlangen-Nürnberg

Russian Academy of Sciences

University of Würzburg

Chinese Academy of Sciences

Australian National University

Max Planck Institute for Chemistry

Institute of Experimental Mineralogy

Lomonosov Moscow State University

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Field

The effect of temperature on the equilibrium distribution of trace elements between clinopyroxene, orthopyroxene, olivine and spinel in upper mantle peridotite

Chemical Geology (2005)

G. Witt-Eickschen Hugh O’Neill

Peridotite

Xenolith

Trace element

Pyroxene

Amphibole

10.1016/j.chemgeo.2005.04.005

Cite

Citations (206)

Garnet Peridotite Xenoliths from the Vitim Volcanic Field, Baikal Region: the Nature of the Garnet--Spinel Peridotite Transition Zone in the Continental Mantle

Journal of Petrology (1993)

Dmitri A. Ionov Igor Ashchepkov H.‐G. Stosch G. Witt-Eickschen H. A. Seck

Journal Article Garnet Peridotite Xenoliths from the Vitim Volcanic Field, Baikal Region: the Nature of the Garnet—Spinel Peridotite Transition Zone in the Continental Mantle Get access D. A. IONOV, D. A. IONOV * 1Max-Planck-Institut für ChemiePostfach 3060, W-6500 Mainz, Germany * Present address: School of Earth Sciences, Macquarie University, N.S.W. 2109, Australia Search for other works by this author on: Oxford Academic Google Scholar I. V. ASHCHEPKOV, I. V. ASHCHEPKOV 2Institute of Geology and Geophysics, Siberian Branch of the Russian Academy of SciencesUniversitetsky 3, 630090 Novosibirsk 90, Russia Search for other works by this author on: Oxford Academic Google Scholar H.-G. STOSCH, H.-G. STOSCH 3Mineralogisch-Petrographisches Institut, Universität zu KölnZülpicher Str. 49b, D-50674 Köln, Germany Search for other works by this author on: Oxford Academic Google Scholar G. WITT-EICKSCHEN, G. WITT-EICKSCHEN 3Mineralogisch-Petrographisches Institut, Universität zu KölnZülpicher Str. 49b, D-50674 Köln, Germany Search for other works by this author on: Oxford Academic Google Scholar H. A. SECK H. A. SECK 3Mineralogisch-Petrographisches Institut, Universität zu KölnZülpicher Str. 49b, D-50674 Köln, Germany Search for other works by this author on: Oxford Academic Google Scholar Journal of Petrology, Volume 34, Issue 6, December 1993, Pages 1141–1175, https://doi.org/10.1093/petrology/34.6.1141 Published: 01 December 1993 Article history Received: 26 August 1992 Accepted: 18 January 1993 Published: 01 December 1993

Peridotite

Xenolith

10.1093/petrology/34.6.1141

Cite

Citations (148)

The Nature of Young Vein Metasomatism in the Lithosphere of the West Eifel (Germany): Geochemical and Isotopic Constraints from Composite Mantle Xenoliths from the Meerfelder Maar

Journal of Petrology (1998)

G. Witt-Eickschen Werner Kaminsky U. Kramm B. Harte

Trace element compositions of amphibole and clinopyroxenes from composite mantle xenoliths crosscut by micaceous hornblendite veinlets that served as conduits for melts moving through vein systems in the upper mantle have been investigated by ion-microprobe analysis to evaluate the process of vein metasomatism in the lithosphere beneath the West Eifel (Germany). The geochemical and Sr–Nd isotopic characteristics of the veinlets suggest that these are products of megacrysts precipitation of melts of the same composition as West Eifel alkali basalts. Their geochemical imprint on the host peridotite is constrained by the evolution of compositional gradients in trace element contents within a small-scale, 0.5–1.0 cm wide transition zone at the veinlet–host contact. Highly LREE-enriched, HSFE-poor clinopyroxenes identified in some host rocks have 87Sr/86Sr (0.7041) and 143ND/144Nd ratios (0.5125) different from those of veinlets and West Eifel basalts, and provide evidence for a metasomatizing agent before melt injection. Trace element modelling of zoning profiles developed in a single amphibole grain of the transition zone shows that the veining event manifested in the composite xenoliths was rapid and represents the brief final stage of multiple enrichment processes, probably as a consequence of the Quaternary Eifel volcanism.

Xenolith

Amphibole

Metasomatism

Alkali basalt

Trace element

Peridotite

Fractional crystallization (geology)

10.1093/petroj/39.1.155

Cite

Citations (83)

Highly siderophile elements (PGE, Re and Au) in mantle xenoliths from the West Eifel volcanic field (Germany)

Chemical Geology (2003)

Gerhard Schmidt G. Witt-Eickschen H. Palme H. A. Seck B. Spettel

Xenolith

Peridotite

Metasomatism

Primitive mantle

Platinum group

Incompatible element

10.1016/s0009-2541(02)00408-4

Cite

Citations (33)

Ordering and exsolution processes in Or-rich alkali feldspar megacrysts from the Eldzhurtinskiy granite (Caucasus)

Contributions to Mineralogy and Petrology (1996)

G. Witt-Eickschen Christos Evangelakakis H. A. Seck H. Kroll А.Г. Гурбанов

Alkali feldspar

10.1007/s004100050174

Cite

Citations (7)

Lithospheric Mantle Evolution beneath the Eifel (Germany): Constraints from Sr-Nd-Pb Isotopes and Trace Element Abundances in Spinel Peridotite and Pyroxenite Xenoliths

Journal of Petrology (2003)

G. Witt-Eickschen

The Pb isotope compositions of amphiboles and clinopyroxenes in spinel peridotite and pyroxenite mantle xenoliths from the intra-plate Quaternary volcanic fields of the Eifel province (Germany) are strongly correlated with their Sr–Nd isotope and trace element compositions. High-temperature anhydrous xenoliths from a depth of around 60 km have trace element and Sr–Nd–Pb isotope compositions similar to the depleted source of mid-ocean ridge basalts (Depleted MORB Mantle, DMM). Amphibole-bearing xenoliths from shallower depths (<45 km) provide evidence for three temporally distinct episodes of mantle metasomatism in the subcontinental lithosphere: (1) aqueous fluids from an isotopically enriched (EM-like) mantle reservoir caused amphibole formation during deformation in the shallow continental lithospheric mantle and may be subduction related, probably associated with the last major tectonic event that influenced the area (Hercynian orogeny). (2) During a second phase of mantle metasomatism the EM-like lithospheric mantle was affected by melts from an ancient, HIMU-like (high time-integrated μ = 238U/204Pb) mantle source. The HIMU-like component introduced by these fluids had a much more radiogenic Pb isotope composition than the asthenospheric source of the widespread Cenozoic magmatism in Europe and may be linked to reactivation of ancient subducted crustal domains during the Hercynian orogeny or to early Cretaceous deep-sourced mantle plumes. (3) During a brief final stage the heterogeneously enriched EM–HIMU subcontinental lithosphere was locally modified by basaltic melts migrating along fractures and veins through the upper mantle as a consequence of the Cenozoic Eifel volcanism. Although a DMM component is completely lacking in the metasomatic fluids of the metasomatic episodes 1 and 2, the vein melts of episode 3 and the Cenozoic Eifel lavas require mantle sources containing three end-member components (DMM–HIMU–EM). Thus, mobilization of the more depleted mantle material occurred at the earliest in the Tertiary, contemporaneously with the development of the extensive rift system and main melt generation in Europe. Alternatively, the variety of Sr–Nd–Pb isotope signatures of the metasomatic agents may have been produced by melting of isotopically distinct mantle domains in a heterogeneous uprising mantle plume.

Peridotite

Metasomatism

Xenolith

Amphibole

Trace element

10.1093/petrology/44.6.1077

Cite

Citations (107)

Mantle Upwelling and Metasomatism beneath Central Europe: Geochemical and Isotopic Constraints from Mantle Xenoliths from the Rhon (Germany)

Journal of Petrology (1997)

G. Witt-Eickschen U. Kramm

Metasomatism

Xenolith

10.1093/petroj/38.4.479

Cite

Citations (73)

Thermal and Geochemical Evolution of the Shallow Subcontinental Lithospheric Mantle Beneath the Eifel: Constraints from Mantle Xenoliths, a Review

Springer eBooks (2007)

G. Witt-Eickschen

Xenolith

Hotspot (geology)

10.1007/978-3-540-68046-8_9

Cite

Citations (16)

Density contrast of fluid inclusions associated with melt (glass) from two distinct suites of mantle peridotites from the West Eifel, Germany: Implications for melt origin

European Journal of Mineralogy (2003)

G. Witt-Eickschen Reiner Klemd H. A. Seck

Melt inclusions

Density contrast

10.1127/0935-1221/2003/0015-0095

Cite

Citations (14)

Trace Element Concentrations in Amphibole and/or Clinopyroxene from Composite Mantle Xenoliths of the West Eifel (Germany): An Ion-Microprobe Study

Mineralogical Magazine (1994)

G. Witt-Eickschen

H.A. Seck Mineralogisch-Petrographisches Institut, Universitdt KSln, Zfilpicherstr. 49b, D50674 K6ln, Germany. Institut ffir Kristallographie, Universitdt K~ln, Zfilpicherstr. 49b, D50674 K6ln, Germany. Department of Geology & Geophysics, University of Edinburgh, Grant Institute, West Mains Road, Edinburgh EH9 3JW, UK. Mineralogisch-Petrographisches Institut, Universitdt K6ln, Zfilpicherstr. 49b, 1950674 K6ln, Germany.

Amphibole

Xenolith

Trace element

Microprobe

10.1180/minmag.1994.58a.2.245

Cite

Citations (2)