Next Article in Journal
Crystal Structure of Kristiansenite from Szklarska Poręba, Southwestern Poland
Next Article in Special Issue
Apatite Chemical Compositions from Acadian-Related Granitoids of New Brunswick, Canada: Implications for Petrogenesis and Metallogenesis
Previous Article in Journal
A Novel Method to Limit the Adverse Effect of Fine Serpentine on the Flotation of Pyrite
Previous Article in Special Issue
LA-ICP-MS Analysis of Clinopyroxenes in Basaltic Pyroclastic Rocks from the Xisha Islands, Northwestern South China Sea
Article Menu
Issue 12 (December) cover image

Export Article

Open AccessArticle
Minerals 2018, 8(12), 583;

Occurrence of Felsic Rocks in Oceanic Gabbros from IODP Hole U1473A: Implications for Evolved Melt Migration in the Lower Oceanic Crust

Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa Ishikawa 920-1192, Japan
Faculty of Geosciences and Geoengineering, Hanoi University of Mining and Geology, Hanoi 100000, Vietnam
College of Science and Engineering, Kanazawa University, Kakuma-machi, Kanazawa Ishikawa 920-1192, Japan
Department of Geology, University of Calcutta, 35 Ballygunge Circular Road Kolkata, West Bengal 700019, India
Institute of Geology and Geoinformation, Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology, AIST Tsukuba Central 7, 1-1-1 Higashi, Tsukuba Ibaraki 305-8567, Japan
Centre de Recherches Pétrographiques et Géochimiques (UMR 7358), CNRS, Université de Lorraine, 54501 Vandœuvre les Nancy, France
State Key Laboratory of Lithospheric Evolution, Institute of Geology and Geophysics, Chinese Academy of Sciences, P.O. Box 9825, Beijing 100029, China
Rosenstiel School of Marine and Atmospheric Science, University of Miami, Miami, FL 33156, USA
Department of Earth Science and Environment, University of Pavia, 27100 Pavia, Italy
School of Earth and Ocean Sciences, Cardiff University, Main Building, Park Place Cardiff, Wales CF10 3AT, UK
International Ocean Discovery Program, Texas A&M University, 1000 Discovery Drive, College Station, TX 77845-9547, USA
Department of Geology and Geophysics, Woods Hole Oceanographic Institution, MS #8, McLean Laboratory, Woods Hole, MA 02543-1539, USA
Authors to whom correspondence should be addressed.
Received: 12 October 2018 / Revised: 4 December 2018 / Accepted: 7 December 2018 / Published: 10 December 2018
(This article belongs to the Special Issue Igneous Rocks: Minerals, Geochemistry and Ore Potential)
Full-Text   |   PDF [16024 KB, uploaded 11 December 2018]   |  


Felsic rocks are minor in abundance but occur ubiquitously in International Ocean Discovery Program Hole U1473A, Southwest Indian Ridge. The trace element abundances of high-Ti brown amphibole, plagioclase, and zircon in veins, as well as the presence of myrmekitic texture in the studied felsic rocks support crystallization origin from highly-evolved melts, probably controlled by fractional crystallization. Based on geochemical criteria and texture of the mineral assemblage in felsic rocks and their relationship with host gabbros, they can be divided into three types: (1) Felsic rock with sharp boundaries is formed when felsic melt intrudes into fractures of host gabbros, resulting in minimal interaction between the melt and the wall minerals. (2) Replacive felsic rock, which is characterized by a pseudomorphic replacement of minerals in the host gabbro. This vein type is caused by the replacement of the host mineralogy by minerals in equilibrium with the felsic melts. (3) Felsic rock with diffused boundaries is formed either by infiltration of felsic melt into the solidifying gabbro body or crystallization of interstitial melts. Infiltration modes of felsic melts are likely controlled by the temperature condition of the cooling host gabbros. View Full-Text
Keywords: IODP; hole U1473A; Atlantis Bank; gabbros; felsic veins; melt-rock interactions; oceanic plagiogranite IODP; hole U1473A; Atlantis Bank; gabbros; felsic veins; melt-rock interactions; oceanic plagiogranite

Graphical abstract

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Supplementary material


Share & Cite This Article

MDPI and ACS Style

Nguyen, D.K.; Morishita, T.; Soda, Y.; Tamura, A.; Ghosh, B.; Harigane, Y.; France, L.; Liu, C.; Natland, J.H.; Sanfilippo, A.; MacLeod, C.J.; Blum, P.; Dick, H.J.B. Occurrence of Felsic Rocks in Oceanic Gabbros from IODP Hole U1473A: Implications for Evolved Melt Migration in the Lower Oceanic Crust. Minerals 2018, 8, 583.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Minerals EISSN 2075-163X Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top