Articles | Volume 34, issue 6
Research article
12 Dec 2022
Research article |  | 12 Dec 2022

ICDP Oman Drilling Project: varitextured gabbros from the dike–gabbro transition within drill core GT3A

Artur Engelhardt, Jürgen Koepke, Chao Zhang, Dieter Garbe-Schönberg, and Ana Patrícia Jesus

Related authors

A sub-fossil coral Sr/Ca record documents meridional variability of the Intertropical Convergence Zone in the eastern Indian Ocean
Miriam Pfeiffer, Hideko Takayanagi, Lars Reuning, Takaaki Konabe Watanabe, Saori Ito, Dieter Garbe-Schönberg, Tsuyoshi Watanabe, Chung-Che Wu, Chuan-Chou Shen, Jens Zinke, Geert-Jan Brummer, and Sri Yudawati Cahyarini
Clim. Past Discuss.,,, 2024
Preprint under review for CP
Short summary
A 334-year coral record of surface temperature and salinity variability in the greater Agulhas Current region
Jens Zinke, Takaaki K. Watanabe, Siren Rühs, Miriam Pfeiffer, Stefan Grab, Dieter Garbe-Schönberg, and Arne Biastoch
Clim. Past, 18, 1453–1474,,, 2022
Short summary
Heavy metal uptake of nearshore benthic foraminifera during multi-metal culturing experiments
Sarina Schmidt, Ed C. Hathorne, Joachim Schönfeld, and Dieter Garbe-Schönberg
Biogeosciences, 19, 629–664,,, 2022
Short summary
A new clinopyroxene thermobarometer for mafic to intermediate magmatic systems
Xudong Wang, Tong Hou, Meng Wang, Chao Zhang, Zhaochong Zhang, Ronghao Pan, Felix Marxer, and Hongluo Zhang
Eur. J. Mineral., 33, 621–637,,, 2021
Short summary
El Niño–Southern Oscillation and internal sea surface temperature variability in the tropical Indian Ocean since 1675
Maike Leupold, Miriam Pfeiffer, Takaaki K. Watanabe, Lars Reuning, Dieter Garbe-Schönberg, Chuan-Chou Shen, and Geert-Jan A. Brummer
Clim. Past, 17, 151–170,,, 2021

Related subject area

Igneous petrology
Granite magmatism and mantle filiation
Michel Pichavant, Arnaud Villaros, Julie A.-S. Michaud, and Bruno Scaillet
Eur. J. Mineral., 36, 225–246,,, 2024
Short summary
Inclusions in magmatic zircon from Slavonian mountains (eastern Croatia): anatase, kumdykolite and kokchetavite and implications for the magmatic evolution
Petra Schneider and Dražen Balen
Eur. J. Mineral., 36, 209–223,,, 2024
Short summary
Confocal μ-XANES as a tool to analyze Fe oxidation state in heterogeneous samples: the case of melt inclusions in olivine from the Hekla volcano
Roman Botcharnikov, Max Wilke, Jan Garrevoet, Maxim Portnyagin, Kevin Klimm, Stephan Buhre, Stepan Krasheninnikov, Renat Almeev, Severine Moune, and Gerald Falkenberg
Eur. J. Mineral., 36, 195–208,,, 2024
Short summary
Constraining the volatile evolution of mafic melts at Mt. Somma–Vesuvius, Italy, based on the composition of reheated melt inclusions and their olivine hosts
Rosario Esposito, Daniele Redi, Leonid V. Danyushevsky, Andrey Gurenko, Benedetto De Vivo, Craig E. Manning, Robert J. Bodnar, Matthew Steele-MacInnis, and Maria-Luce Frezzotti
Eur. J. Mineral., 35, 921–948,,, 2023
Short summary
Contrasting appinites, vaugnerites and related granitoids from the NW Iberian Massif: insight into mantle and crustal sources
Gumer Galán, Gloria Gallastegui, Andrés Cuesta, Guillermo Corretgé, Ofelia Suárez, and Luis González-Menéndez
Eur. J. Mineral., 35, 845–871,,, 2023
Short summary

Cited articles

Alt, J. C., Laverne, C., Coggon, R. M., Teagle, D. A. H., Banerjee, N. R., Morgan, S., Smith-Duque, C. E., Harris, M., and Galli, L.: Subsurface structure of a submarine hydrothermal system in ocean crust formed at the East Pacific Rise, ODP/IODP Site 1256, Geochem. Geophy. Geosy., 11, Q10010,, 2010. 
Bédard, J. H.: A procedure for calculating the equilibrium distribution of trace elements among the minerals of cumulate rocks, and the concentration of trace elements in the coexisting liquids, Chem. Geol., 118, 143–153,, 1994. 
Bédard, J. H., Sparks, R. S. J., Renner, R., Cheadle, M. J., and Hallworth, M. A.: Peridotite Sills and Metasomatic Gabbros in the Eastern Layered Series of the Rhum Complex, J. Geol. Soc., 145, 207–224, 1988. 
Belgrano, T. M. and Diamond, L. W.: Subduction-zone contributions to axial volcanism in the Oman–UAE ophiolite, Lithosphere, 11, 399–411,, 2019. 
Belgrano, T. M., Diamond, L. W., Vogt, Y., Biedermann, A. R., Gilgen, S. A., and Al-Tobi, K.: A revised map of volcanic units in the Oman ophiolite: insights into the architecture of an oceanic proto-arc volcanic sequence, Solid Earth, 10, 1181–1217,, 2019. 
Short summary
We present a detailed petrographic, microanalytical and bulk-chemical investigation of 36 mafic rocks from drill hole GT3A from the dike–gabbro transition zone. These varitextured gabbros are regarded as the frozen fillings of axial melt lenses. The oxide gabbros could be regarded as frozen melts, whereas the majority of the rocks, comprising olivine-bearing gabbros and gabbros, show a distinct cumulate character. Also, we present a formation scenario for the varitextured gabbros.