| | Journal (article/letter/editorial) | history: The Pacific-derived Santa Elena ophiolite, northwest Costa Rica Javier Escuder-Viruete, Peter...history: The Pacific-derived Santa Elena ophiolite, northwest Costa Rica, LITHOS (2015), doi: 10.1016/j...history: the Pacific-derived Santa Elena ophiolite, northwest Costa Rica SC R IP T Javier Escuder-Viruete...NU a Abstract MA The Santa Elena ophiolite (SEO) is an ultramafic nappe of more than 270 km2 overlying...tectonic serpentinite-matrix mélange in northwest Costa Rica. It is mainly composed of Cpx-rich and Cpx- | | Escuder-Viruete, Javier, Andjić, Goran, Baumgartner-Mora, Claudia, Baumgartner, Peter O., Castillo-Carrión, Mercedes, Gabites, Janet (2019) Origin and geodynamic significance of the Siuna Serpentinite Mélange, Northeast Nicaragua: Insights from the large-scale structure, petrology and geochemistry of the ultramafic blocks. Lithos, 340. 1-19 doi:10.1016/j.lithos.2019.05.002 | Journal (article/letter/editorial) | structure, petrology and geochemistry of the ultramafic blocks Javier Escuder-Viruete, Goran Andjić...structure, petrology and geochemistry of the ultramafic blocks, LITHOS, https://doi.org/10.1016/j.lithos...structure, petrology and geochemistry of the ultramafic blocks Javier Escuder-Viruetea,* j.escuder@igme...bulk rock geochemical data for representative ultramafic rocks preserved as blocks in the SSM. Structurally...high-pressure (P) conditions. There are also blocks of ultramafic rocks, which consist mainly of harzburgite and | | | Journal (article/letter/editorial) | Article Petrogenetic Implications for Ophiolite Ultramafic Bodies from Lokris and Beotia (Central Greece)...Published: 3 March 2017 Abstract: Cr-spinels from ultramafic rocks from Lokris (Megaplatanos and Tragana)...amounts of clinopyroxene-rich harzburgite and lherzolite have been observed along with the harzburgite...peridotites. Keywords: peridotite; harzburgite; lherzolite; dunite; chromite; mantle melting; abyssal; olivine...serves as an important petrogenetic indicator for ultramafic and related rocks [1]. Since the chemical composition | | Xiong, Qing, Henry, Hadrien, Griffin, William L., Zheng, Jian-Ping, Satsukawa, Takako, Pearson, Norman J., O’Reilly, Suzanne Y. (2017) High- and low-Cr chromitite and dunite in a Tibetan ophiolite: evolution from mature subduction system to incipient forearc in the Neo-Tethyan Ocean. Contributions to Mineralogy and Petrology, 172 (6) doi:10.1007/s00410-017-1364-y | Journal (article/letter/editorial) | between the lherzolite (Lherz) domain and the harzburgite (Harz) domain of the Zedang ultramafic body, defined...defined by our systematic examination of the Zedang ultramafic body (Xiong et al. 2016, 2017b). The aims here...was extended to produce the Comei Large Igneous Province at ~135–120 Ma, as a result of the breakup of...(Fig. 1c). This ophiolite is composed mainly of ultramafic rocks, with small exposures of mafic rocks close...observed in the ophiolitic mélange. The Zedang ultramafic body has been systematically examined by Xiong | | Sideridis, Alkiviadis, Zaccarini, Federica, Koutsovitis, Petros, Grammatikopoulos, Tassos, Tsikouras, Basilios, Garuti, Giorgio, Hatzipanagiotou, Konstantinos (2021) Chromitites from the Vavdos ophiolite (Chalkidiki, Greece): Petrogenesis and geotectonic settings; constrains from spinel, olivine composition, PGE mineralogy and geochemistry. Ore Geology Reviews, 137. 104289pp. doi:10.1016/j.oregeorev.2021.104289 | Journal (article/letter/editorial) | the intensive tectonic deformation. The lower ultramafic part of some complexes (Vavdos, Gerakini) was...(Dabitzias, 1980). Upper section, crustal level ultramafic (wehrlite and pyroxenite) and mafic rocks (gabbros)...exclusively associated with dunite bodies withing the ultramafic sequence. Textural types of chromitite at Vavdos...Peridotites with Cr# spinel < 40% correspond to lherzolite (L), categorization is after Array (1997). 7...Chalkidiki include mantle restite and mafic and ultramafic crustal sequences. These lithologies and chromitites | | | Journal (article/letter/editorial) | high-Ti) within separated massifs or a single ultramafic massif makes their 47 formation processes and...chromitite varieties outcropping within 90 the same ultramafic massif provide an ideal window to indicate the...fault (Fig. 2a). The ophiolite consists mainly of ultramafic rocks, podiform 123 chromitites, cumulates...diabase. The ultramafic rocks are mostly harzburgite with minor 125 amounts of lherzolite, dunite, and...sandstones, and conglomerates tectonically overlie the ultramafic rocks (Fig. 2d). 131 The Sartohay podiform | | | Journal (article/letter/editorial) | Arctic Circle (Fig. 1). It is one of many mafic–ultramafic layered intrusions within the Baltic (Fennoscandian)...envelopes that grade outward into harzburgite and/or lherzolite (Kelemen et al., 1992; Zhou et al., 1996). In...chromitite have never been reported in mafic–ultramafic layered intrusions previously. It was therefore...dykes) cross-cutting cumulate rocks in the lower, ultramafic part of the Monchegorsk Layered Intrusion (MLI)...of the massif that exposes the most primitive ultramafic cumulates (Smolkin et al., 2004a) (Figs 1 and |
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