 | Frets, Erwin C., Tommasi, AndrƩa, Garrido, Carlos J., Vauchez, Alain, Mainprice, David, Targuisti, Kamal, Amri, Isma (2014) The Beni Bousera Peridotite (Rif Belt, Morocco): an Oblique-slip Low-angle Shear Zone Thinning the Subcontinental Mantle Lithosphere. Journal of Petrology, 55 (2) 283-313 doi:10.1093/petrology/egt067 | Journal (article/letter/editorial) | | doi:10.1093/petrology/egt067
The Beni Bousera Peridotite (Rif Belt, Morocco):
an Oblique-slip Low-angle Shear...SCIENCES, UNIVERSITEĀ¤ ABDELMALEK ESSAAāDI, TETOUAN, MOROCCO
RECEIVED AUGUST 7, 2012; ACCEPTED OCTOBER...petrological mapping in the Beni Bousera
peridotite (Rif Belt, northern Morocco) shows that this orogenic...orogenic
peridotite massif is composed of four tectono-metamorphic domains
with consistent kinematics, marked...NNE^SSWorientation in the lowermost part of the
massif. From top to bottom, these domains are garnet^spinel |  | | Journal (article/letter/editorial) | | aluminous mafic rocks from the Ronda peridotite
massif, southern Spain: significance of sapphirine- and...rocks
alternating with peridotites from the Ronda massif, southern Spain. Garnet and clinopyroxene are the...completely kelyphitized. Clinopyroxene ŽCPX I. has high Al 2 O 3 content in the
core Žup to 16 wt.%. and is...spherical symplectitic aggregates consisting of lower-Al 2 O 3 clinopyroxene
ŽCPX II. Ž- 5 wt.%. and plagioclase...Elsevier Science B.V.
Keywords: Ronda peridotite massif; Mafic rock; Sapphirine; Corundum; Kyanite; High |  | Michard, AndrƩ, Feinberg, Hugues, El-Azzab, Driss, Bouybaouene, Mohamed, Saddiqi, Omar (1992) A serpentinite ridge in a collisional paleomargin setting: the Beni Malek massif, External Rif, Morocco. Earth and Planetary Science Letters, 113 (3) 435-442 doi:10.1016/0012-821x(92)90144-k | Journal (article/letter/editorial) | | collisional paleomargin setting:
the Beni Malek massif, External Rif, Morocco
Andr6 Michard a, Hugues Feinberg...Agdal, Morocco
Ā¢ Facult~ des Sciences I, D#partement de G~ologie, BP 5366, Casablanca Maarif, Morocco
Received...Eastern Rif Belt of northern Morocco the Beni Malek serpentinised peridotite massif is included in a low-grade...transgressive onto the ultramafic
(lherzolitic) massif and detrital serpentinite layers that occur within...ridge of the Galician margin, we suggest that the Beni
Malek ultramafics were part of a similar ridge of |  | | Journal (article/letter/editorial) | | Infiltrations
in the Ultramafic Complex of Beni Bousera,
Northern Morocco
1
INSTITUTE OF EARTH SCIENCES, UNIVERSITY...UNIVERSITEĀ¤ ABDELMALEK ESSAAāDI, 2121 TEĀ¤TOUAN, MOROCCO
RECEIVED DECEMBER 28, 2009; ACCEPTED MAY 3, 2011...investigated in two pyroxenite-rich zones in the
Beni Bousera massif. Based on combined field, microtextural,...and higher than for other pyroxenite
types in Beni Bousera, which generally yield 511008C. Type-II
spinel...garnet, which is corroborated by the presence of Al-rich metamorphic spinels. Relict magmatic plagioclase |  | El Atrassi, Fatima, Chazot, Gilles, Brunet, Fabrice, Chopin, Christian, Bouybaouene, Mohamed (2014) Amphibole genesis in pyroxenites from the Beni Bousera peridotite massif (Rif, Morocco): Evidence for two different metasomatic episodes. Lithos, 208. 67-80 doi:10.1016/j.lithos.2014.08.014 | Journal (article/letter/editorial) | | genesis in pyroxenites from the Beni Bousera peridotite
massif (Rif, Morocco): Evidence for two different...Mohammed V, Avenue Ibn Battouta, B.P. 1014, Rabat, Morocco
b
c
a r t i c l e
i n f o
Article history:
Received...Keywords:
Metasomatism
Amphibole
Silicate melt
Beni Bousera
Garnet websterite
Garnet clinopyroxenite
a...and a garnet clinopyroxenite
from the Beni Bousera peridotite massif provides evidence for post-formation...which occurred at different stages of the Beni Bousera massif evolution. The garnet websterite has
recorded |  | | Journal (article/letter/editorial) | | pyroxenite layer from the Beni Bousera Ultramafic Complex of northern Morocco
NIRAJ
KUMAR, * LAURIE
Lamont-Doherty...symmetrically
zoned pyroxenite
layer from the Beni Bousera massif. The two main rock types included in the...southern
margin of Spain and the northern margin of Morocco has been linked for over a billion years.
1. INTRODUCTION...gabbroic crust. Pearson et al. (1993) suggest that
many of the layers in this massif are high-pressure crystal...from melts of subducted altered crust. Dickey et
al. ( 1979) stressed that the magmatic process may have |  | Pearson, D.G., Davies, G.R., Nixon, P.H., Greenwood, P.B., Mattey, D.P. (1991) Oxygen isotope evidence for the origin of pyroxenites in the Beni Bousera peridotite massif, North Morocco: derivation from subducted oceanic lithosphere. Earth and Planetary Science Letters, 102 (3) 289-301 doi:10.1016/0012-821x(91)90024-c | Journal (article/letter/editorial) | | origin of pyroxenites in the Beni
Bousera peridotite massif, North Morocco" derivation from
subducted oceanic...pseudomorphs after diamond, in the Beni
Bousera peridotite massif show marked oxygen isotope heterogeneity...Introduction
The Beni Bousera peridotite massif, is situated
in the Rif Mountains of North Morocco, forming
part...part of the Betico-Rifean orogenic belt. The massif is one of a series of peridotites of mantle origin...Neogene,
followed by rapid exhumation [2]. The Beni
Bousera massif forms part of a SE-plunging antiform surrounded |  | El Atrassi, Fatima, Brunet, Fabrice, Chazot, Gilles, BouybaouĆØne, Mohamed, Chopin, Christian (2013) Metamorphic and magmatic overprint of garnet pyroxenites from the Beni Bousera massif (northern Morocco): Petrography, mineral chemistry and thermobarometry. Lithos, 179. 231-248 doi:10.1016/j.lithos.2013.08.023 | Journal (article/letter/editorial) | | of garnet pyroxenites from the
Beni Bousera massif (northern Morocco): Petrography, mineral chemistry...Mohammed V, Avenue Ibn Battouta, B.P. 1014 Rabat, Morocco
b
a r t i c l e
i n f o
Article history:
Received...textural study of two pyroxenites from the Beni Bousera massif, a garnet
clinopyroxenite (GP) and a garnet...strong metamorphic overprint associated with the massif exhumation. In both pyroxenites, the primary
assemblage...earlier in the Beni Bousera history (i.e. at higher grade)
and for which decoupling between Al diffusion and |  | | Journal (article/letter/editorial) | | alternating with
peridotite from the Ronda peridotite massif, southern Spain. On the basis of petrographic characteristics...Copyright Ā© 2003 Elsevier Science Ltd
1990). Morishita et al. (2001) also suggested on the basis of
their major...sapphirine) alternating with peridotite
in the Ronda massif. These data and petrographical constraints
show...hereafter) in peridotite is observed in many orogenic lherzolite massifs. Although origins of mafic rocks are...AlleĢgre and Turcotte, 1986; Kornprobst
et al., 1990; Takazawa et al., 1999; Morishita and Arai, 2001).
The |  | | Journal (article/letter/editorial) | | Origin and Age of Pyroxenites from the Beni
Bousera Peridotite Massif: Implications for
Mixed Peridotite---Pyroxenite...suite of pyroxenites from the Beni Bousera peridotite massif,
northern Morocco, have been analysed for Re---Os...isotopic compositions. Measured sections of the massif indicate that
pyroxenite layers make up between...compositions (eHfi Ćæ77 to Ćæ85)
whereas those of the Al-augite suite are more radiogenic (eHfi 94
to 256)...partial melting event
associated with transfer of the massif from mantle to crust. This
created highly fractionated |  | | Journal (article/letter/editorial) | | Phases as Determined in
the Beni Bousera Cr-Ni Mineralization (North Morocco)
RUBĆN PIĆA,1,ā FERNANDO GERVILLA...sulfide minerals from the Beni Bousera Cr-Ni mineralization (North Morocco). Previous experimental studies...segregated by immiscibility from a sulfide melt. The Beni Bousera mineralization represents an excellent natural...silicate melts
(e.g., Peach et al., 1990; Fleet et al., 1991; Crocket et al.,
1992). The distribution of...sulfides (e.g.,
Barnes et al., 2006; Holwell and McDonald, 2007; Dare et al.,
2010) and/or as discrete |  | | Report (article/chapter) | | FacultO des Sciences I, B P 5366, Maarif-Casablanca,
Morocco
Abstract: The study of 210 cores (15 sites) from...from the Beni Bousera
peridotites (southern branch of the Gibraltar Arc). In the latter massif, a c. 74~...(Andrieux et al. 1971; Platt &
Vissers 1989; Balanya & Garcia-Duefias 1987;
Frizon de Lamotte et al. 1991)...Sub-Betic
zone (Osete et al. 1988; Platzman & Lowrie
1992; Villala/n et al. 1994, this volume), and to...Rifian Dorsale Calcaire (Platzman 1992;
Platzman et al. 1993). These studies showed a
clockwise rotation |  | Day, James M.D., Barry, Peter H., Hilton, David R., Burgess, Ray, Pearson, D. Graham, Taylor, Lawrence A. (2015) The helium flux from the continents and ubiquity of low-3He/4He recycled crust and lithosphere. Geochimica et Cosmochimica Acta, 153. 116-133 doi:10.1016/j.gca.2015.01.008 | Journal (article/letter/editorial) | | from South Africa, Siberia, and the Beni Bousera Massif, Morocco that are widely interpreted to form...Elsevier Ltd. All rights reserved.
J.M.D. Day et al. / Geochimica et Cosmochimica Acta 153 (2015) 116ā133...g., Kurz et al., 1982). High-3He/4He measured in intraplate basalts (P50 RA, Stuart et al., 2003; where...and Elliott, 2008) isolated lower-mantle source
region that underlies a more degassed and depleted upper...high-3He/4He signatures (e.g., Anderson, 2000;
Parman et al., 2005; AlbareĢde, 2008), and so, the impact
that |  | Pearson, D.G, Irvine, G.J, Ionov, D.A, Boyd, F.R, Dreibus, G.E (2004) ReāOs isotope systematics and platinum group element fractionation during mantle melt extraction: a study of massif and xenolith peridotite suites. Chemical Geology, 208 (1) 29-59 doi:10.1016/j.chemgeo.2004.04.005 | Journal (article/letter/editorial) | | fractionation during mantle melt extraction: a study
of massif and xenolith peridotite suites
D.G. Pearson a,*...field (Baikhal Rift), plus massif peridotites from Beni Bousera,
N. Morocco. Mg ā Fe variations indicate...samples have experienced between 5% (Vitim ā Beni Bousera) and 50%
(Lesotho) melt extraction, providing...melting interval. The
Namibian xenoliths and Beni Bousera massif peridotites show no variation of iridium...compared to the kimberlite-borne
xenoliths and massif peridotites. The Vitim low Os/Ir is comparable |  | | Journal (article/letter/editorial) | | Pyroxenites and Associated Rocks from the Beni
Bousera Peridotite, North Morocco
by D. G. PEARSON 1 *, G. R. D A...ABSTRACT
Garnet pyroxenite layers in the Beni Bousera peridotite massif contain graphite as octahedra and
other...INTRODUCTION
The Beni Bousera peridotite massif is situated in the Rif Mountains of North Morocco,
60 km SE...Tetuan on the Mediterranean coast. The peridotite massif comprises lherzolites
and harzburgites of upper-mantle...Kornprobst (1969), Pearson (1989), and Kornprobst et al. (1990). Two garnet
clinopyroxenite layers have been |  | | Journal (article/letter/editorial) | | massifs of
the Betico-Rifean range (Ronda and Beni Bousera)
Khalid Gueddari *, Michel Piboule, Jean AmossC...contents of 28 peridotites of the Ronda and Beni Bousera lherzolitic massifs were
determined using ICP-MS...Rh behaves like a chalcophile
element in the Beni Bousera peridotites (as do Pt and Pd), unlike the Ronda...assumed by the thermochemical data. Unlike the Beni Bousera peridotites,
the non-chalcophile behaviour of...first approximation,
into two sub-groups (Barnes et
al., 1985). OS, Ir and Ru (Ir-platinum-group
elements |  | | Journal (article/letter/editorial) | | 0022-3530/92 $3.00
Oxygen Thermobarometry of Orogenic Lherzolite
Massifs
by ALAN B. WOODLAND 1 *, JACQUES KORNPROBST...peridotites from 13 orogenic lherzolite massifs
including Beni Bousera, Ronda, and 11 smaller massifs...samples.
The spinel peridotites of Ronda and Beni Bousera arerelativelyreduced, averaging ā1-1 and ā1-5...and
radiogenic isotopes. The harzburgites at Beni Bousera record the most reduced conditions. Local
oxidation...fine-grained
plagioclase.
The similarity mfOl values at Beni Bousera and Ronda indicates a fairly uniform oxidation |  | | Journal (article/letter/editorial) | | massifs in orogenic belts of western
Europe and Morocco contain many different varieties of mantle pyroxenites...broadest sense. Nevertheless, some pyroxenites from Beni Bousera and Ronda have whole rock compositions that...a few massifs (e.g. garnet pyroxenites from Beni Bousera and Ronda) display strong evidence of being...Pyroxenites; Ultramafic massifs; Mantle; Europe; Morocco
ā Tel.: +44 2076797712.
E-mail address: h.downes@ucl...common ultramafic rock-type after the spinel
lherzoliteāharzburgite series. Judging from their abundances |  | | Journal (article/letter/editorial) | | Fades Pyroxenites from the Beni Bousera
Peridotite Massif, North Morocco
Department of Earth Sciences...petrogenesis of pyroxenite layers within the Beni Bousera peridotite massif is investigated by
means of elemental...with diapiric upwelling and emplacement of the massif into the crust from the diamond
stability field...DAVIESf, AND P. H. NIXON
126
D. G. PEARSON ET AL.
relatively recently (<200 Ma) for some pyroxenites...the petrological and isotopic diversity of the massif support the concept of a
'marble cake' mantle capable |  | | Journal (article/letter/editorial) | | corundum-bearing garnet pyroxenites from Ronda Iherzolitic Massif (Spain) M. Piboule LGCA-ERS 129, CNRS, Institut...outcropping of series of ultramafic massifs. The Ronda massif is the largest surface exposure (~300 km 2) of...of peridotite on Earth and consists of lherzolite associated with harzburgite and minor dunite, interpreted...Polv6 and Allbgre, 1980; Komprobst et al., 1990; Pearson et al., 1993). This study has generated interest...interest in garnet pyroxenites from Ronda massif as a result of the discovery of corundum in some garnet |  | Afiri, Abdelkhaleq, Essaifi, Abderrahim, Charroud, Ali, Aqnouy, Mourad, Abdelrahman, Kamal, Alali, Amar, Abioui, Mohamed (2023) Tectonometamorphic Evolution of the Migmatitic Paragneisses of the Filali Unit (Internal Rif, Morocco) Minerals, 13 (4) 484 doi:10.3390/min13040484 | Journal (article/letter/editorial) | | Paragneisses of the Filali Unit (Internal Rif, Morocco) Abdelkhaleq Afiri 1, * , Abderrahim Essaifi 2...Paragneisses of the Filali Unit (Internal Rif, Morocco). Minerals 2023, 13, 484. https:// doi.org/10.3390/min13040484...Ismail University of Meknes, Errachidia 52000, Morocco Lithosphere Dynamics and Resource Genesis Laboratory...Sciences-Semlalia, Cadi Ayyad University, Marrakech 40000, Morocco Department of Geosciences, Faculty of Sciences...Ismail University of Meknes, Errachidia 52000, Morocco Applied Geology Research Laboratory, Applied Geology |  | | Journal (article/letter/editorial) | | fractions that percolated pervasively throughout the massif and
had a refractory, calc-alkaline character....originated the present
petrological zoning of the massif, and, in most cases, have replaced
older mafic...veins (ConqueĢreĢ, 1971; Wilshire
et al., 1980; Bodinier et al., 1987a). Whereas most investigators agree...which
also includes the Beni Bousera peridotite in Northern
MAY 1999
Morocco, is the westernmost segment...geology of the Ronda massif have been presented by
Tubia (1994) and Vissers et al. (1995) among many others |  | Crespo, E., Luque, F.J., Rodas, M., Wada, H., Gervilla, F. (2006) Graphiteāsulfide deposits in Ronda and Beni Bousera peridotites (Spain and Morocco) and the origin of carbon in mantle-derived rocks. Gondwana Research, 9 (3) 279-290 doi:10.1016/j.gr.2005.10.003 | Journal (article/letter/editorial) | | Graphiteāsulfide deposits in Ronda and Beni Bousera peridotites
(Spain and Morocco) and the origin of carbon in...from the SerranıĢa de Ronda (Spain) and Beni Bousera (Morocco).
These deposits occur as veins, stockworks...Graphite; Carbon isotopes; Ultramafic rocks; Ronda; Beni Bousera
1. Introduction
Native carbon in mantle-derived...(Pineau et al., 1987; Barrenechea et al., 1997), andesites
(Strens, 1965), peridotites (Luque et al., 1992)...mantle via
subduction of crustal rocks (Milledge et al., 1983; Gurney,
1990; Pearson and Nixon, 1996). Finally |  | | Book | | Courtesy M. Ihmadi (Ihmadi Trilobite Center, Alnif, Morocco)
AndrĆ© Michard Ā· Omar Saddiqi Ā·
Ahmed Chalouan...(Eds.)
Continental
Evolution: The
Geology of Morocco
Structure, Stratigraphy, and Tectonics
of the ...Faculty of Sciences
B.P. 5366 MaaĢrif
Casablanca
Morocco
o.saddiqi@fsac.ac ma
Prof. Dr. Ahmed Chalouan...University
avenue Ibn Batouta
Rabat
B.P. 1014
Morocco
chalouan@fsr.ac.ma
Prof. Dr. Dominique Frizon...including the major Pan-African and
Variscan cycles, Morocco has always been characterized by intense mining |  | | Journal (article/letter/editorial) | | Netherlands
117
[6]
Lead isotope study of orogenic lherzolite massifs
B r u n o H a m e l i n * a n d C l a...massifs of Lherz (Pyrenees), Lanzo (Alps),
Beni Bousera (Morocco) and Zabargad (Red Sea) show internal heterogeneities...convection. The Pb isotope data suggest that each massif was involved in several cycles of convective overturn...regions.
The peridotite massifs known as orogenic
lherzolite massifs [2] offer several advantages for
* Presently...derived from the melting
episodes that left the lherzolite residues. Others
apparently resulted from later |
|