• Journal of Geophysical Research: Solid Earth

    2019-5-6 · The Panzhihua gabbroic intrusion is a sill-like body that dips 50–60°NW and extends NE-SW along strike for ~19km isof~2kmthickwithanoutcropareaof~30km2 ... Amp = Amphibole. The horizontal black areas in the column show the location of main Fe-Ti oxide ore layers. The horizontal dotted lines mark the boundaryofAmphibole geochemistry of the Baima layered intrusion, …Section snippets Geological background and the Baima intrusion. The ~260 Ma Emeishan large igneous province (ELIP) in SW China has an outcrop area of 5 × 10 5 km 2 and is located in the western margin of the Yangtze Block and the eastern margin of the Tibetan Plateau (Fig. 1a). It consists of coeval continental flood basalts, mafic–ultramafic intrusions, and felsic plutons …

    Lire la suite
  • 2016-1-28 · [34] Xu SJ, Liu WZ, Wang RC, Yu HB, Li DM, Wang JL, Fang Z, 2004, The history of crustal uplift and metamorphic evolution of Panzhihua-Xichang micro-paleoland, SW China: Constraints on Sm-Nd, 40Ar/39Ar and FT ages of granulites. Science in China - NJU2016-1-26 · R.C. et al., 1998, U-Pb dating of zircon grains from the ore-bearing plagioclase amphibole in the Dashuigou Te deposit ... Xu SJ, Liu WZ, Wang RC, Yu HB, Li DM, Wang JL, Fang Z, 2004, The history of crustal uplift and metamorphic evolution of -Nd ...

    Lire la suite
  • Mg-Mn-Fe-Li Clino-Amphibole Subgroup: Mineral …

    Mg-Mn-Fe-Li Clino-Amphibole Subgroup mineral data, information about Mg-Mn-Fe-Li Clino-Amphibole Subgroup, its properties and worldwide locations. ... Tewite: AK–Te–W new mineral species with a modified tungsten-bronze type structure, from the Panzhihua-Xichang region, southwest China. European Journal of Mineralogy, 31(1), 145-152. Quick ...(,)_2018-1-24 · ,,,19627,,,198812,,,。,、,,()。

    Lire la suite
  • Apatite-hosted melt inclusions from the Panzhihua …

    2018-6-27 · The ∼ 2-km-thick Panzhihua gabbroic-layered intrusion in SW China is unusual because it hosts a giant Fe–Ti oxide deposit in its lower zone. The deposit consists of laterally extensive net-textured and massive Fe–Ti oxide ore layers, the thickest of which is ∼ 60 m. To examine the magmatic processes that resulted in the Fe enrichment of parental high-Ti …Timing of Ti-magnetite crystallisation and silicate …2013-6-1 · The Panzhihua intrusion is one of numerous layered intrusions related to the ~ 260 Ma Emeishan Large Igneous Province (ELIP), south west China.The ELIP consists of a large volume (0.3 × 10 6 km 3; Xu et al., 2001) of flood basalts and numerous related intrusions.The flood basalts have been divided into high-Ti and low-Ti suites, which have distinct mantle sources …

    Lire la suite
  • Petrography and trace element signatures in silicates and …

    2017-12-1 · The Panzhihua intrusion was emplaced within Late Neoproterozoic limestone (Dengying Formation), which was metamorphosed into forsterite and diopside marbles along the contact, ... Trace element data for amphibole (Electronic Appendix F, Table F4) are limited due to the scarcity and small grain size. Concentrations of most trace elements in ...Geochemistry, Petrogenesis and Metallogenesis of the …The Panzhihua gabbroic layered intrusion is associated with the 260 Ma Emeishan Large Igneous Province in SW China. This sill-like body hosts a giant ... Magnetite (black) enclosing clinopyroxene and plagioclase, both of which are rimmed by brown amphibole, suggesting reaction between the hydrous oxide melt and the silicate minerals; sample P21 ...

    Lire la suite
  • Crustal velocity structure in the Emeishan large igneous ...

    1 ,;Redox state of amphibole-bearing mantle peridotite from Nushan, Anhui Province in eastern China and its implications[J];Science in China(Series D:Earth Sciences);200204 2;Characteristics of mantle degassing and deep-seated geological structures in different typical fault zones of China[J];Science in China(Series D:Earth Sciences);200507Permian peralkaline, peraluminous and metaluminous A …2015-11-28 · Panzhihua granitic intrusion coarsegrained consistsprimarily alkalifeldspar, quartz ferrorichterite.Accessory minerals include apatite alkalifeldspar subhedral,rectangular comprised65–70% alkalifeldspar crystals usually1.5 cm havepatchy exsolution lamellae likely

    Lire la suite
  • Mg-Mn-Fe-Li Clino-Amphibole Subgroup: Mineral …

    Mg-Mn-Fe-Li Clino-Amphibole Subgroup mineral data, information about Mg-Mn-Fe-Li Clino-Amphibole Subgroup, its properties and worldwide locations. ... from the Panzhihua-Xichang region, southwest China. European Journal of Mineralogy, 31(1), 145-152. Quick NavTop Classification Other Information References Internet Links Localities Locality ...860-970 °C BO ZHANG1, 2, 3, XIANXU HU4, PAUL D.2019-1-10 · 5 91 the method of 2D measurement, and to do so over a range of times and grain sizes. 92 In this work, we therefore present a preliminary study of amphibole growth from a hydrous basaltic melt 93 at pressures 0.6-2.6 GPa, temperatures 860-970 °C, and crystallization times 1-100 h. The two-dimensional 94 thin section method was adopted both for direct …

    Lire la suite
  • Magnetite-rutile symplectite in ilmenite records magma …

    2022-3-1 · The Xinjie intrusion is one of several layered intrusions in the Panzhihua-Xichang region in SW China . The intrusion is a northwest-southeast striking, sill-like body ... Amphibole coexisting with plagioclase, titanomagnetite, and ilmenite hosting magnetite-rutile symplectite (Type-II) from the olivine gabbro at the bottom of Unit III ...-fanyazhou.doc2019-5-7 ·  1 1 1 1 1,2 1.,,710054 2., 710054 :,FeMg, ...

    Lire la suite
  • Yongli LI | Doctor of Engineering | Northeastern University …

    Amphibole is a rock‐forming mineral widely existing on the earth. It is easily dissolved and altered during the later stage of diagenesis and mineralization, and often forms chloritization ...(,)_2018-1-24 · ,,,19627,,,198812,,,。,、,,()。

    Lire la suite
  • Journal of Geophysical Research: Solid Earth

    2019-5-6 · The Panzhihua gabbroic intrusion is a sill-like body that dips 50–60°NW and extends NE-SW along strike for ~19km isof~2kmthickwithanoutcropareaof~30km2 ... Amp = Amphibole. The horizontal black areas in the column show the location of main Fe-Ti oxide ore layers. The horizontal dotted lines mark the boundaryof()_2019-9-23 · (shale)。(、),。,、、、。,,19.61~68.65 MPa。,, ...

    Lire la suite
  • (PDF) Origin of Late Permian amphibole syenite from the …

    2019-4-8 · The MELTS model results show that Houzishan amphibole syenite can be formed by the high degree (~80%) fractional crystallization of ~24% clinopyroxene, ~4% orthopyr-oxene, ~35% plagioclase and ~5% ...()_2019-9-23 · (shale)。(、),。,、、、。,,19.61~68.65 MPa。,, ...

    Lire la suite
  • Abundant Fe-Ti oxide inclusions in olivine from the …

    Abundant Fe-Ti oxide inclusions in cumulus olivine (Fo 77-81 ) from the Panzhihua and Hongge intrusions, Emeishan large igneous province, SW China, document the first evidence for early crystallization of Fe-Ti oxides in ferrobasaltic systems in nature. The intrusions also contain significant stratiform Fe-Ti-V oxide ores. The oxide inclusions are sub-rounded or irregular, …Baima V-Ti-Fe deposit, Miyi County, Panzhihua, Sichuan, …Name (s) in local language (s):,,,, . Vanadiferous titaniferous magnetite (V-Ti magnetite) deposit, hosted in layered gabbro of the mafic-ultramafic Baima intrusion which was emplaced into Lower Proterozoic metamorphic rocks (K …

    Lire la suite
  • 《() 》!

    Petrography and Geochemistry of the Wuling Amphibole Gabbro and Its Implication for Iron Ore Metallization YAN Shuang,NIU Hecai 2014,88(Z2):397-398 [(584)] [PDF 370.98 K (701)] Comparison of the Dahongshan Cu-Fe Deposit with Typical IOCGEJM – Volume 34, issue 12022-1-5 · The influence of oxygen fugacity and chlorine on amphibole–liquid trace element partitioning at upper-mantle conditions. Enrico Cannaò, Massimo Tiepolo, Giulio Borghini, Antonio Langone, and Patrizia Fumagalli ... Liguowuite, WO 3, a new member of the A-site vacant perovskite type minerals from the Panzhihua–Xichang region, China. Yuan Xue ...

    Lire la suite
  • The Panzhihua Intrusion, SW China | SpringerLink

    2015-5-19 · The ~ 260 Ma Panzhihua intrusion is an elongate layered gabbroic intrusion with a length of ~ 19 km and a thickness of ~ 2 km in the central part of the Emeishan large igneous province, SW China. ..., the amphibole compositions reported by Pang are consistent with formation at ~ 3 kbar. Thus, a pressure range of ~ 3–5 kbar likely represents ...Geochemistry, Petrogenesis and Metallogenesis of the …The Panzhihua gabbroic layered intrusion is associated with the 260 Ma Emeishan Large Igneous Province in SW China. This sill-like body hosts a giant ... Magnetite (black) enclosing clinopyroxene and plagioclase, both of which are rimmed by brown amphibole, suggesting reaction between the hydrous oxide melt and the silicate minerals; sample P21 ...

    Lire la suite
  • Iron Isotope Systematics of the Panzhihua Mafic Layered …

    2018-12-5 · The Panzhihua gabbroic intrusion is a sill-like body that dips 50–60°NW and extends NE-SW along strike for ~19 km. It is of ~2 km thick with an outcrop area of ~30 km 2 (Zhou et al., 2005).The intrusion is in contact with Sinian dolomitic limestone of the Dengying Formation in the footwall and is overlain by the coeval Panzhihua peralkaline granitic pluton and the Daheishan …Abundant Fe–Ti oxide inclusions in olivine from the …2008-2-27 · The Panzhihua and Hongge intrusions are parts of the ELIP, SW China (Ma et al. 2001; Ali et al. 2005).The ELIP comprises large volumes of flood basalts and a diverse assemblage of intrusive rocks that formed as a result of mantle plume magmatism at ∼260 Ma (Chung and Jahn 1995; Xu et al. 2001; Zhou et al. 2002, 2008).Exposure of large layered …

    Lire la suite
  • : ...

    ,。 、、、,。SHRIMP U-Pb1928±9Ma,1927±20Ma,2368±5Ma ...Crustal velocity structure in the Emeishan large igneous ...1 ,;Redox state of amphibole-bearing mantle peridotite from Nushan, Anhui Province in eastern China and its implications[J];Science in China(Series D:Earth Sciences);200204 2;Characteristics of mantle degassing and deep-seated geological structures in different typical fault zones of China[J];Science in China(Series D:Earth Sciences);200507

    Lire la suite
  • Magnetite-rutile symplectite in ilmenite records magma …

    2022-3-1 · The Xinjie intrusion is one of several layered intrusions in the Panzhihua-Xichang region in SW China . The intrusion is a northwest-southeast striking, sill-like body ... Amphibole coexisting with plagioclase, titanomagnetite, and ilmenite hosting magnetite-rutile symplectite (Type-II) from the olivine gabbro at the bottom of Unit III ...2020-4-13 · ,59.65×10 -6,。、、、MLA, ...

    Lire la suite
  • Geology, geochemistry, fluid inclusions and O–H stable ...

    Geology, geochemistry, fluid inclusions and O–H stable isotope constraints on genesis of the Lake Siah Fe-oxide ± apatite deposit,NE Bafq, Central Iran-fanyazhou.doc2019-5-7 ·  1 1 1 1 1,2 1.,,710054 2., 710054 :,FeMg, ...

    Lire la suite
  • Permian peralkaline, peraluminous and metaluminous A …

    2015-11-28 · Panzhihua granitic intrusion coarsegrained consistsprimarily alkalifeldspar, quartz ferrorichterite.Accessory minerals include apatite alkalifeldspar subhedral,rectangular comprised65–70% alkalifeldspar crystals usually1.5 cm havepatchy exsolution lamellae likelyGeology, geochemistry, fluid inclusions and O–H stable ...Geology, geochemistry, fluid inclusions and O–H stable isotope constraints on genesis of the Lake Siah Fe-oxide ± apatite deposit,NE Bafq, Central Iran

    Lire la suite
  • Amphibole geochemistry of the Baima layered intrusion, …

    2021-12-1 · Amphibole geochemistry of the Baima layered intrusion, SW China: Implications for the evolution of interstitial liquid and the origin of Fe-Ti oxide ores ... Panzhihua, Hongge, and Baima) host giant Fe-Ti oxide deposits and constitute the major part of a ~300 km long and 10–30 km wide mineralized zone, which is the most important metallogenic ...Zircon U–Pb age and Sr–Nd–Hf isotope geochemistry of …2009-6-1 · The Panzhihua syenitic stock is about 10 km long and 2 km wide (Zhou et al., 1985) is genetically related to the Panzhihua gabbroic intrusion (~ 30 km 2) which hosts giant V–Ti–magnetite deposits, that contain more than 1083 million tons of Fe, 125 million tons of Ti, and 3.2 million tons of V, with ore grading 33 wt.% FeO, 12 wt.% TiO 2, 0.30 wt.% V 2 O 5 …

    Lire la suite
  • Interaction of magma with sedimentary wall rock and …

    2008-5-27 · In southwestern China, several large magmatic Fe–Ti–V oxide ore deposits are hosted by gabbroic intrusions associated with the Emeishan flood basalts. The Panzhihua gabbroic intrusion, a little deformed sill that contains a large titanomagnetite deposit at its base, concordantly intrudes late-Proterozoic dolostones. Mineralogical and chemical studies of the …Extraction of Sc from Sc-Bearing V–Ti Magnetite …2021-4-21 · Sampling. Sc-bearing V–Ti magnetite tailing samples containing 0.0039% Sc 2 O 3 were obtained from the Panzhihua area of China. Sc present in the form of Mg–Fe–Sc homomorphism in the enters common pyroxene, …

    Lire la suite
  • Amphibolite: Mineral information, data and localities.

    Amphibolite is a gneissose or granofelsic metamorphic rock mainly consisting of green, brown or black amphibole and plagioclase (including albite), which combined form ≥75% of the rock and both of which are present as major constituents; the amphibole constitutes ≥50% of the total mafic constituents and is present in an amount of ≥30%. A crystalloblastic rock consisting mainly of ...Microstructures and Late-Stage Magmatic Processes in …The amphibole rim is commonly in optical continuity with the thick amphibole vermicules of the symplectite. The general trend (from the olivine primocryst to the outer edge of the symplectite) is: orthopyroxene rim → amphibole rim → amphibole-anorthite symplectite → orthopyroxene-anorthite symplectite → plagioclase primocryst ( Fig. 4b ).

    Lire la suite
  • Mg-Mn-Fe-Li Clino-Amphibole Subgroup: Mineral …

    Mg-Mn-Fe-Li Clino-Amphibole Subgroup mineral data, information about Mg-Mn-Fe-Li Clino-Amphibole Subgroup, its properties and worldwide locations. ... from the Panzhihua-Xichang region, southwest China. European Journal of Mineralogy, 31(1), 145-152. Quick NavTop Classification Other Information References Internet Links Localities Locality ...Baima V-Ti-Fe deposit, Miyi County, Panzhihua, Sichuan, …Name (s) in local language (s):,,,, . Vanadiferous titaniferous magnetite (V-Ti magnetite) deposit, hosted in layered gabbro of the mafic-ultramafic Baima intrusion which was emplaced into Lower Proterozoic metamorphic rocks (K …

    Lire la suite
  • (PDF) Geochemistry, Petrogenesis and Metallogenesis of …

    The Panzhihua gabbroic layered intrusion is associated with the 260 Ma Emeishan Large Igneous Province in SW China. This sill-like body hosts a giant Fe–Ti–V oxide deposit with 1333 million ...()_2019-9-23 · (shale)。(、),。,、、、。,,19.61~68.65 MPa。,, ...

    Lire la suite
  • Microstructures and Late-Stage Magmatic Processes in …

    The amphibole rim is commonly in optical continuity with the thick amphibole vermicules of the symplectite. The general trend (from the olivine primocryst to the outer edge of the symplectite) is: orthopyroxene rim → amphibole rim → amphibole-anorthite symplectite → orthopyroxene-anorthite symplectite → plagioclase primocryst ( Fig. 4b ).: ...,。 、、、,。SHRIMP U-Pb1928±9Ma,1927±20Ma,2368±5Ma ...

    Lire la suite

droits d'auteur © . AMC CRUSHER Tous droits réservés. Plan du site

gotop