 | | Journal (article/letter/editorial) | | crystalline rocks of the Upper Harz Mountains, Germany By ALBRECHT BAUMANN, BORW1N GRAUERT, Miinster,...metasedimentary rocks of about 1 . 6 G a or older. The lower intercept indicates a possible metamorphic event...Mountains. Emplacement of the intrusions of the Harzburg gabbronorite and the Brocken and Oker granites occurred...Ecker gneiss block, now squeezed in between Harzburg gabbronorite and Brocken granite, was connected to these...place des intrusions du massif gabbronoritique du Harzburg et celle des granite de Brocken et d'Ocker ont |  | Járóka, Tom, Seifert, Thomas, Pfänder, Jörg A., Staude, Sebastian, Seibel, Henning V.L., Krause, Joachim, Bauer, Matthias E. (2019) Geology, sulfide mineralogy and petrogenesis of the Angstberg Ni-Cu-(PGE) sulfide mineralization (Lausitz Block, Bohemian Massif, Germany): A potential Ni-Cu exploration target in Central Europe?. Ore Geology Reviews, 110. 102924 doi:10.1016/j.oregeorev.2019.05.010 | Journal (article/letter/editorial) | | mineralization (Lausitz Block, Bohemian Massif, Germany): A potential Ni-Cu exploration target in Central...mineralization (Lausitz Block, Bohemian Massif, Germany): A potential Ni-Cu exploration target in Central...mineralization 2 (Lausitz Block, Bohemian Massif, Germany): A potential Ni-Cu exploration target in Central...Brennhausgasse 14, 09599 Freiberg, 7 Germany 8 2 9 Freiberg, Germany Institut für Geologie, Technische...Wilhelmstraße 56, 72074 Tübingen, Germany 11 4 12 Straße 40, 09599 Freiberg, Germany 13 * corresponding author |  | Krivolutskaya, N. A., Smol’kin, V. F., Svirskaya, N. M., Mamontov, V. P., Fanygin, A. S., Belyatskii, B. V., Roshchina, I. A. (2010) Geochemical features of the drusite massifs, the central part of the Belomorian mobile belt: I. Distribution of major and trace elements in the rocks. Geochemistry International, 48 (5) 465-491 doi:10.1134/s0016702910050046 | Journal (article/letter/editorial) | | features and were transformed into metagabbro, garnet gabbro, and garnet–biotitebearing plagioamphibolites...Initially, the drusite complex combined peridotite to gabbro rocks [4], which were interpreted as differentiation...were subdivided into two series [7]: peridotite–gabbro and gab bro–anorthosite bodies produced by the...relations, distinguished differentage complexes of gabbroanorthosites (partly corresponding to the early...orogenic–late orogenic drusites), and coronite gabbro (partly late orogenic drusites). The development |  | | Journal (article/letter/editorial) | | 415–442. LowSulfide PGE Ore in the Volchetundra Gabbro–Anorthosite Pluton, Kola Peninsula, Russia V. V...Abstract—The internal structure of the Volchetundra gabbro–anorthosite massif is considered, including localization...medium grained meso and leucocratic norite, gabbronorite, plagioclasite, and less fequent orthopyroxenite...zone consists of coarsegrained leucogabbro and gabbronorite with an anorthosite zone in the axial part of...metallogenic epoch are known only in the Lovnozero ore district in the central part of the Lapland Granulite Belt |  | | Journal (article/letter/editorial) | | intrusions, the East Bull Lake, Agnew Lake, and River Valley intrusions, crystallized from similar, low Ti,...typically grades into a heterolithic, inclusion-rich gabbronorite that contains erratically distributed mafic...irregularly, modally layered leucogabbronorite and gabbronorite make up much of the middle parts of the stratigraphy...the Agnew Lake intrusion. Varitextured gabbro and pegmatitic gabbro occur as irregular layers and local...cumulates and appears to have collected along the lower margins of these intrusions through the combined |  | | Journal (article/letter/editorial) | | Geologie und Bergwesen Sachsen-Anhalt, 06118 Halle, Germany Karlsruher Institut für Technologie, Institut für...Petrologie Adenauerring 20b, 76131 Karlsruhe, Germany; armin.zeh@kit.edu Correspondence: Christoph.G...southeastern parts of the complex, whereas the gabbro(-norite) units contain more interstitial liquid...mineralization and alteration of the Chromitiferous Harzburg-ite of extent ofunits mineralization the Chromitiferous...thatalteration might be of expected along the downdip exand Lower Pyroxenite units (Figure 3) that might be expected |  | | Report (issue) | | gravity and magnetic anomalies are associated with gabbro plutons; and negative gravity anomalies are associated...form / sheet-like intrusions of differentiated gabbro; local volcanic centers ii with ring complexes...potassium-rich granites. The Mecklenburg-Wedding ton gabbro complex of the.: Concord-Salisbury supergroup,...the study area, contains three large gabbro plutons. The gabbro intruded Old Plutonic complex rocks and...suggest the lopolith is connected with the Concord gabbro complex to the northeast. The sheet-like intrusions |  | | Journal (article/letter/editorial) | | Paleoproterozoic Layered Intrusions of the Monchegorsk Ore District: Geochemistry and U–Pb, Sm–Nd, Re–Os Isotope Analysis...Paleoproterozoic Layered Intrusions of the Monchegorsk Ore District: Geochemistry and U–Pb, Sm–Nd, Re–Os Isotope Analysis...Imandra–Umbarechka Complex (2.50 and 2.44 Ga) and the largest gabbro-anorthosite of the Main Ridge Complex (2.51–2.45...isotope age correlate to the Monchepluton rocks. The gabbro-anorthosite massifs united in the Main Ridge Complex...Ga, and their composition changed gradually. The gabbro-pegmatites and coeval harrisite dykes are more |  | | Journal (article/letter/editorial) | | Geowissenschaften und Rohstoffe, Hannover, Federal Republic of Germany Textural Features and Chemical Characteristics...June 24, 1981; accepted July 20,1981 Summary The lower ultramafic part of the Chalkidiki Ophiolite Complex...1). Lithologically, this complex consists of a lower layered sequence of dunite and harzburgite, which...which has been intruded by websterite and gabbronorite displaying cumulate textures. Acidic rocks of dioritic...restricted to the ultramafic sequence. Websterite and gabbronorite are barren of chromite or any other spinel mineral |  | Zhang, Chao, Ma, Changqian, Holtz, Francois, Koepke, Jürgen, Wolff, Paul Eric, Berndt, Jasper (2013) Mineralogical and geochemical constraints on contribution of magma mixing and fractional crystallization to high-Mg adakite-like diorites in eastern Dabie orogen, East China. Lithos, 172. 118-138 doi:10.1016/j.lithos.2013.04.011 | Journal (article/letter/editorial) | | Universität Hannover, Callinstr. 3, D-30167 Hannover, Germany Institut für Mineralogie, Westfälische Wilhelms-Universität...Wilhelms-Universität Münster, Corrensstr. 24, D-48149 Münster, Germany a r t i c l e i n f o Article history: Received...zircon Hf isotopes with εHf(t) of −26 to −23 (gabbronorite) and of −32 to −27 (diorite) respectively. Petrographic...mantle upwelling in the adjacent central Middle-Lower Yangtze River metallogenic (MLYR) belt during Late...neither derived directly by high-pressure melting of lower continental crust nor reflect crust delamination |  | | Report (issue) | | (1986) 3 Serpentinite of Bean Canyon 3 Olivine gabbro of Breckenridge Road 4s Mafic remnants in the quartz...Hornblende gabbro and amphibolite of Comanche Point Road 5 Mafic rocks east of Gumminga Valley $ Mafic and...Hornblende gabbro of Tweedy ^ Mafic rocks west of Walker Basin £ Gabbro of the San Joaquin Valley subsurface...lat. 35*30* N. 7 Olivine gabbro of Bodfish and related bodies ' Gabbronorite of Quedow Mountain and related...Summit gabbro of Miller and Webb (1940) /& Gabbro of Freeman Canyon /7 Amphibolite and gabbro of Sage |  | | Journal (article/letter/editorial) | | interlayered dunite, wehrlile, clinopyroxenite, and gabbro that have a penetrative foliation and lineation;...lineation; (3) a cumulate unit composed dominantly of gabbro and minor poikilitic wehrlite; and (4) a sheeted...metacumulate dunite, wehrlite, clinopyroxenite, and gabbro occur as interdigitating lenses and dikes in the...olivine ranges from Fo,u in dunite to fo118,1 in gabbro; orthopyroxene ranges from CauMg,1,0I•e1,.2 in...olivine clinopy roxenite to Ca,. 1 Mg,2,,'Fez:;,s in gabbro; and clinopyroxene ranges from Ca,uMg,s.o• :Fe |  | Chashchin, V. V., Bayanova, T. B., Mitrofanov, F. P., Serov, P. A. (2016) Low-Sulfide PGE ores in paleoproterozoic Monchegorsk pluton and massifs of its southern framing, Kola Peninsula, Russia: Geological characteristic and isotopic geochronological evidence of polychronous ore–magmatic systems. Geology of Ore Deposits, 58 (1) 37-57 doi:10.1134/s1075701516010025 | Journal (article/letter/editorial) | | zircon ages of mineralized metanorite from the lower marginal zone (2504 ± 1 Ma) and metagabbro from...ores. This allows us to regard the Monchegorsk district as a largescale source of Cr, Ni–Cu–PGE, and...Cr–PGE–Cu–Ni ore district (Korovkin et al., 2003). The ore potential of the Monchegorsk ore district is primarily...al. Table 1. U–Pb zircon (Zr) and baddeleyite (Bad) ages of rocks from Monchegorsk pluton Rock Age...(2004) Gabbro pegmatite 2504.4 ± 1.5 Zr Amelin et al. (1995) Gabbro pegmatite 2500 ± 5 Zr, bad Rassloenny |  | Xue, Shengchao, Li, Chusi, Qin, Kezhang, Yao, Zhuosen, Ripley, Edward M. (2018) Sub-arc mantle heterogeneity in oxygen isotopes: evidence from Permian mafic–ultramafic intrusions in the Central Asian Orogenic Belt. Contributions to Mineralogy and Petrology, 173 (11) doi:10.1007/s00410-018-1521-y | Journal (article/letter/editorial) | | Accepted: 12 October 2018 © Springer-Verlag GmbH Germany, part of Springer Nature 2018 Abstract Integrated...oxygen isotopes globally (e.g., Matty et al. 1994; Valley et al. 1998; Eiler et al. 2001; Bindeman et al...compiled by Klemd et al. 2011; Li et al. 2016) sets a lower limit for the end of oceanic subduction in the region...(Qin et al. 2011; Xue et al. 2016a). The Pobei gabbro was intruded by several small ultramafic intrusions...contain minor mafic rocks (mainly troctolite and gabbronorite), such as the Poyi, Poshi, and Podong intrusions |  | | Journal (article/letter/editorial) | | of the Moncha Tundra Massif comprises dolerites, gabbropegmatites, and aplites. The dolerite dikes are...ferrodolerites, ferrodolerites, lowTi and lowFe gabbrodolerites. The U–Pb age of the ferrodolerites is...on the U–Pb isotopic system of zircon from the gabbropegmatites and titanite from the aplites indicate...crustal com ponent. The parental melts of the gabbrodolerites were melted out of the lithospheric mantle...with the participation of a crustal component. The gabbrodolerites and the rocks of the layered complex |  | | Journal (article/letter/editorial) | | activity in the Korosten complex shows that the gabbro-anorthosites and the granites are not comagmatic...the generation of large volumes of magma in the lower crust. Introduction The origin of Mid-Proterozoic...and about 25% anorthosite and gabbro-anorthosite, with minor gabbronorite and monzonite and subordinate...Sedimentary platform cover Anorthosites and gabbro-anorthositas Gabbro-norites, diabeses and ultrabasic rocks...Much smaller volumes of relatively fine grained gabbro-norites are localized mostly in the marginal parts |  | | Journal (article/letter/editorial) | | mainly composed of troctolite, olivine gabbro and gabbronorite. The parental magmas of the intrusions...consistently have εNd(t) values of -5.4 to -10.4, much lower than the value of +2.5 for the mantle inferred from...troctolite and olivine gabbro. The Changling intrusion is mainly composed of gabbronorite. The Bashan intrusion...intrusion is composed of gabbronorite and olivine gabbro. They intrude Neoproterozoic bimodal volcanic suite...diameter and are interstitial to plagioclase. Olivine gabbro samples from the Daposhan, Shoushan and Bashan |  | | Journal (article/letter/editorial) | | Cu-Ni-Cr+(PGE) deposits in the Monchegorsk ore district [1–5] and Pechenga [6–8], Fe-Ti-V Kolvitsa deposit...plagioclase-amphibole gabbronorite, are to as chilled marginschists rocks.with relicts of norite and gabbronorite, which...intergranular injection Cu-Ni-PGE mineralization in and the lower part. that The Norite zone (50–200 m) with cumulus...Cu-Ni-PGE mineralization thecontain lower part. The Mainof Gabbronorite (about m) is a(up thickly layered...“stratified” and containrock chromite. with Gabbronorite a 40–80 m thinly horizon (LLH)layered in the |  | Peck, D. C., Keays, R. R., James, R. S., Chubb, P. T., Reeves, S. J. (2001) Controls on the Formation of Contact-Type Platinum-Group Element Mineralization in the East Bull Lake Intrusion. Economic Geology, 96 (3) 559-581 doi:10.2113/gsecongeo.96.3.559 | Journal (article/letter/editorial) | | intrusion, including an average of ca. 200 ppb in the Lower Series; (2) low-average S contents (typically <1%);...47°00’ Superior Province 2210-2219 Nipissing gabbro suite GFTZ 5 Sudbury Igneous Complex _ 2480...EBLI suite rocks 4 Drury Twp intrusion 9 River Valley intrusion Archean basement 5 Wisner Twp Intrusion...the Agnew intrusion by a narrow dikelike body of gabbro (Fig. 2; Vogel et al., 1998). Drilling results...stratigraphic elements in the intrusion are the Lower, Main, and Upper Series. The Marginal Series represents |  | | Journal (article/letter/editorial) | | sequence and the unusual development of the ultramafic Lower Zone as satellite bodies or offshoots at the base...intrusion. The outcrop and suboutcrop pattern of Lower Zone Grasvally body and its relation to the surrounding...northwest towards the town and resulted in only the lower units being developed. The lateral change of Main...equivalent layers, and ultramafic rocks of the Lower Zone. At the same time, Falconbridge explored the...magnetite-bearing rocks, with a thin sliver of Main Zone gabbronorite rocks and the Platreef at the base of the sequence |  | | Journal (article/letter/editorial) | | Netherlands 21 THE PRECAMBRIAN MAGMATIC ROCKS OF TIMNA VALLEY, SOUTHERN ISRAEL M. B E Y T H Geological Survey...rocks of Timna Valley, southern Israel. Precambrian Res., 36: 21-38. In the Timna Valley in southern Israel...hydrothermal waters. Introduction T h e T i m n a Valley is a n e r o s i o n a l semi-cirque b o u n d...T i m n a in t h e T i m n a Valley, p a r t l y c o v e r e d b y lower C a m b r i a n rocks (Fig. 1...g a detailed m a p p i n g o f t h e T i m n a Valley (Segev a n d B e y t h , 1983). T h i s s t u d |  | | Book | | Australia–Tasmania, Canada, the United States, Germany, Portugal, France, Italy, The Netherlands, Switzerland...the country. The chromite belt was located in a valley between the Mahagiri and the Daitari hill ranges...structure of the igneous complex at the Sudbury Mining District, Canada, was formed as the result of a meteorite... in 1887 from Vermillion nickel mine, Sudbury District, Ontario, Canada, and was named after him. It... Pentlandite typically concentrates within the lower margin of a mineralized layered intrusive. The |  | | Book | | syenite foid-bearing syenite quartz diorite quartz gabbro quartz anorthosite (monzogranite) 65 90 20 ...monzogabbro P diorite gabbro anorthosite foid-bearing diorite foid-bearing gabbro foid-bearing anorthosite...monzodiorite foid-bearing monzogabbro foid diorite foid gabbro foidolite F Fig. 2.4. QAPF modal classification...comprehensive names for rocks between syenite and diorite/gabbro, i.e. for monzonites (field 8) and monzodiorite/monzogabbro...monzodiorite/monzogabbro, respectively. 24 Field 10 (diorite, gabbro, anorthosite) — the three root names in this field |  | Godard, M., Awaji, S., Hansen, H., Hellebrand, E., Brunelli, D., Johnson, K., Yamasaki, T., Maeda, J., Abratis, M., Christie, D., Kato, Y., Mariet, C., Rosner, M. (2009) Geochemistry of a long in-situ section of intrusive slow-spread oceanic lithosphere: Results from IODP Site U1309 (Atlantis Massif, 30°N Mid-Atlantic-Ridge) Earth and Planetary Science Letters, 279 (1) 110-122 doi:10.1016/j.epsl.2008.12.034 | Journal (article/letter/editorial) | | Geosciences, University of Jena, D-07749 Jena, Germany i West Coast & Polar Regions Undersea Research...the Oceanic Crust, PO Box 330440. 28334 Bremen, Germany l GFZ German Research Centre for Geosciences, Inorganic...Isotope Geochemistry, Telegrafenberg, 14473 Potsdam, Germany b c a r t i c l e i n f o Article history: Received...W. Carlson Keywords: Mid-Atlantic Ridge oceanic gabbro bulk-hole composition geochemistry ICP-MS a b...there was no large scale removal of melts from this gabbro section. The occurrence of such a large magmatic |  | Tang, Qingyan, Zhang, Zhaowei, Li, Chusi, Wang, Yalei, Ripley, Edward M. (2016) Neoproterozoic subduction-related basaltic magmatism in the northern margin of the Tarim Craton: Implications for Rodinia reconstruction. Precambrian Research, 286. 370-378 doi:10.1016/j.precamres.2016.10.012 | Journal (article/letter/editorial) | | mafic-ultramafic intrusive rocks in the Kuluketage district are all characterized by moderate light rare earth...mafic-ultramafic intrusions and dykes in the Kuluketage district, Tarim Craton (Fig. 1) has also been debated for...mafic-ultramafic intrusive rocks in the Kuluketage district is consistent with prolonged mantle plume activity...from Korla to Xingdi (Fig. 2a). In the Kuluketage district (Fig. 2b) the metamorphic rocks are mainly amphibolites...facies. The igneous rock suites in the Kuluketage district are volumetrically dominated by Neoproterozoic |
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