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Continuous Casting

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ISBN: 9783039213214 9783039213221 Year: Pages: 250 DOI: 10.3390/books978-3-03921-322-1 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- Chemical Engineering
Added to DOAB on : 2019-08-28 11:21:27
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Continuous casting is an industrial process whereby molten metal is solidified into a semi-finished billet, bloom, or slab for subsequent rolling in finishing mills; it is the most frequently used process to cast not only steel, but also aluminium and copper alloys. Since its widespread introduction for steel in the 1950s, it has evolved to achieve improved yield, quality, productivity and cost efficiency. It allows lower-cost production of metal sections with better quality, due to the inherently lower costs of continuous, standardized production of a product, as well as providing increased control over the process through automation. Nevertheless, challenges remain and new ones appear, as ways are sought to minimize casting defects and to cast alloys that could originally only be cast via other means. This Special Issue of the journal ""Metals"" consists of 14 research articles that cover many aspects of experimental work and theoretical modelling related to the ongoing development of continuous casting processes.

Keywords

slab continuous casting --- hybrid simulation model --- uneven secondary cooling --- numerical simulation --- molten steel flow --- solidification --- inclusion motion --- inclusion entrapment --- billet continuous casting --- swirling flow tundish --- multiphase flow --- heat transfer --- mold --- continuous casting --- numerical simulation --- round bloom --- continuous casting --- final electromagnetic stirring --- electromagnetic field --- polycrystalline model --- pores --- inclusions --- mechanism --- beam blank --- crystal --- propagation --- asymptotic analysis --- numerical simulation --- continuous casting --- air mist spray cooling --- continuous casting --- heat flux --- HTC --- secondary cooling --- thin-slab cast direct-rolling --- austenite grain coarsening --- grain growth control --- liquid core reduction --- secondary cooling --- two-phase pinning --- annular argon blowing --- upper nozzle --- flow behavior --- argon gas distribution --- tundish --- continuous casting --- bulge deformation --- thermomechanical coupling --- segmented roller --- finite element analysis --- steel tundish --- baffle --- flow field --- velocity --- PIV --- multi-source information fusion --- data stream --- continuous casting --- roll gap value --- prediction --- global optimization --- support vector regression --- variational mode decomposition --- empirical mode decomposition --- support vector regression --- mold level --- continuous casting --- magnetohydrodynamics --- fluid flow --- bubbles --- inclusions --- entrapment --- entrainment --- heat transfer --- solidification --- slab mold --- continuous casting --- n/a

New Results and Advances in PGE Mineralogy in Ni-Cu-Cr-PGE Ore Systems

Authors: ---
ISBN: 9783039217168 9783039217175 Year: Pages: 228 DOI: 10.3390/books978-3-03921-717-5 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General)
Added to DOAB on : 2019-12-09 16:39:37
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The book (Special Issue) presents impressive new results related to a wide spectrum of occurrences of platinum-group minerals (PGM) and natural compounds enriched in platinum-group elements (PGE), which are associated with various complexes and deposits, such as Uralian-Alaskan-type complexes, layered intrusions and placers. The geographical locations of the involved deposits and complexes include, on a truly international scale, different areas of the Urals, Western and Eastern Sayans and Gornaya Shoria in Siberia, Southern Central Asian Orogenic Belt in China, Northern Michigan, USA, South Africa and Zimbabwe, etc. Of particular interest is the first description of a new species of PGM, thalhammerite (approved by the Commission on New Minerals, Nomenclature and Classification of the International Mineralogical Association), which is a new species of palladium-silver sulfobismuthide discovered in the Noril’sk region of Russia. Additionally, comprehensive reviews, on compositional variations in Pt–Fe alloy minerals and processes of transformations of PGM in exogenic environments, are presented which will also attract attention from international readers.

Keywords

platinum-group elements --- platinum-group minerals --- PGE alloys --- chromian spinel --- schemes of substitution --- Ti- and REE-rich inclusions --- Sisim placer zone --- Lysanskiy complex --- Eastern Sayans --- Russia --- platinum-group elements --- gold --- platinum-group minerals --- placer deposits --- ophiolite complexes --- western Sayans --- Russia --- thalhammerite --- platinum-group mineral --- Pd9Ag2Bi2S4 phase --- reflectance data --- X-ray-diffraction data --- crystal structure --- Komsomolsky mine --- Talnakh deposit --- Noril’sk region --- Russia --- chromitite --- platinum group minerals --- primary inclusions --- ophiolite --- Alaskan-type complex. --- Urals --- Russia --- Alaskan-type complex --- Central Asian Orogenic Belt --- PGM --- PGE mineralization --- Bushveld Complex --- South Africa --- Great Dyke --- Zimbabwe --- platinum-group minerals --- primary ores --- oxide ores --- placers --- allogenic --- authigenic --- Echo Lake --- Midcontinent --- palladium --- platinum --- magnetite --- gabbro --- platinum-group elements --- platinum-group minerals --- Pt–Fe alloys --- compositional variations --- element substitutions --- placer deposits --- ore mineralization --- ultramafic-mafic complexes --- Ural Platinum belt --- Ural-Alaskan massif --- Svetloborsky massif --- placer system --- platinum group elements --- platinum group minerals --- platiniferous tetra-auricupride --- Pt-for-Au substitution --- platinum --- gold --- ophiolite --- Bolshoy Khailyk placer --- western Sayans --- Russia --- platinum-group elements --- gold --- platinum-group minerals --- placer deposits --- micrometric inclusions --- Gornaya Shoria --- Siberia --- Russia --- n/a

Ironmaking and Steelmaking

Authors: ---
ISBN: 9783039213290 9783039213306 Year: Pages: 464 DOI: 10.3390/books978-3-03921-330-6 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Physics (General)
Added to DOAB on : 2019-12-09 16:10:12
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Steel is a critical material in our societies and will remain an important one for a long time into the future. In the last two decades, the world steel industry has gone through drastic changes and this is predicted to continue in the future. The Asian countries (e.g. China, India) have been dominant in the production of steel creating global over-capacity, while the steel industry in the developed countries have made tremendous efforts to reinforce its global leadership in process technology and product development, and remain sustainable and competitive. The global steel industry is also facing various grand challenges in strict environmental regulation, new energy and materials sources, and ever-increasing customer requirements for high quality steel products, which has been addressed accordingly by the global iron and steel community. This Special Issue, “Ironmaking and Steelmaking”, released by the journal Metals, published 33 high quality articles from the international iron and steel community, covering the state-of-the-art of the ironmaking and steelmaking processes. This includes fundamental understanding, experimental investigation, pilot plant trials, industrial applications and big data utilization in the improvement and optimization of existing processes, and research and development in transformative technologies. It is hoped that the creation of this special issue as a scientific platform will help drive the iron and steel community to build a sustainable steel industry.

Keywords

ironmaking --- microwaves --- carbothermal reduction --- iron oxides --- emission spectrum --- ore-carbon briquette --- CO–CO2 atmosphere --- simulation --- re-oxidation --- reduction --- electroslag cladding --- high speed steel --- ductile cast iron --- composite roll --- bonding interface --- high-phosphorus iron ore --- fluorapatite --- carbothermal reduction --- vaporization dephosphorization --- iron ore pellets --- compressive strength (CS) --- prediction model --- artificial neural network --- principal component analysis --- crystallization behaviors --- crystallization rate --- anosovite crystals --- silicate crystals --- titanium slag --- blast furnace --- copper stave --- hydrogen attack --- slag crust --- heat-affected zone --- high heat input welding --- Ca deoxidation --- inclusion control --- intragranular acicular ferrite --- concentrate --- iron ore --- agglomerate --- structure --- phase analysis --- Mg deoxidation --- inclusions --- Al addition --- high-heat-input welding --- heat-affected zone --- toughness --- shot peening --- Barkhausen noise --- crystallite size --- carbon composite pellet --- direct reduction --- shrinkage --- kinetics --- rotary hearth furnace --- hydrogen plasma --- smelting reduction --- HPSR --- iron oxide --- plasma arc --- ionization degree --- sulfur distribution ratio --- liquid area --- carbon-saturated iron --- phosphate capacity --- sulfide capacity --- phosphorus distribution ratio --- sulfur distribution ratio --- evaluation of coupling relationship --- secondary refining process, CaO–based slags --- iron sulfate --- TG analysis --- thermal treatment --- iron oxide --- kinetics --- activation energy --- high-aluminum iron ore --- synergistic reduction --- high-manganese iron ore --- hercynite --- fayalite --- flow velocity --- casting speed --- gas flow rate --- flow pattern --- continuous casting --- Cr recovery --- self-reduction briquette --- reaction mechanism --- mold flux --- low fluorine --- internal crack --- surface roughness --- slag film --- vanadium titano-magnetite --- gas-based reduction --- carbon monoxide --- hydrogen --- and nitrogen --- kinetics --- pellet size --- liquid steel --- non-contact measurement --- oxides --- steel-making --- blast furnace --- solid flow --- cold experiment --- direct element method --- Wilcox–Swailes coefficient --- viscosity --- BaO --- CaO/Al2O3 ratio --- modified NPL model --- ultrafine particles exposure --- steelmaking factory --- chemical composition --- devolatilization --- torrefied biomass --- bio-coal --- volatile matter --- iso-conversional method --- Al-TRIP steel --- surface depression --- cracks --- non-metallic inclusion --- mold flux --- reactivity --- hot metal pre-treatment --- desiliconisation --- dephosphorisation --- solid and gaseous oxygen --- fork --- flat steel --- inclusions --- 33MnCrTiB --- slag --- carbon dioxide --- injection --- blast furnace --- converter --- combustion --- oxygen steelmaking --- refining kinetics --- slag formation --- penetration theory --- oxygen blast furnace --- COREX --- static process model --- integrated steel plant --- material flow --- energy consumption --- CO2 emissions --- oil-pipeline steel --- Ca-treatment --- non-metallic inclusions --- electrolytic extraction --- corrosion --- n/a

Mineralogy and Geochemistry of Gems

Authors: --- --- ---
ISBN: 9783039280766 9783039280773 Year: Pages: 528 DOI: 10.3390/books978-3-03928-077-3 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Geology --- Earth Sciences
Added to DOAB on : 2020-04-07 23:07:09
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Abstract

Gems have been used in the manufacture of jewellery and as ornaments since antiquity. Considering gems, recent statistics have shown that about 15 billion Euros are annually at stake. Nowadays, gemmology, i.e., the study of gem materials, is one of the most expanding fields in the earth sciences, positioned between academia and industry. As an applied science, in gemmology, the instruments used should be non- or microdestructive, and their cost should be reasonable both in terms of equipment and time consumption. Gemmology can also be used contribute to the development of pure science and in some cases, destructive techniques may have to be used. Taking into account the fact that gems are albeit rarely available for scientific research, this compilation of 20 articles by around 100 researchers from over 30 different institutions situated in 20 countries from around the globe, presented in the Special Issue entitled “Mineralogy and Geochemistry of Gems”, offers very good examples on the application of various methods for their study which will hopefully contribute to our better understanding of gem formation in general and will enhance scientific debates attracting more scientists from various disciplines to get involved in this field.

Keywords

danburite --- trace elements --- REE --- femtosecond LA-ICP-MS --- CHNS elemental analyzer --- pegmatites --- skarn --- gemstones --- placer --- heavy and light minerals --- landforms --- climate --- geodynamic setting --- green quartz --- prase --- amethyst --- color --- amphibole --- actinolite --- skarn --- Serifos --- Greece --- zircon --- xenocryst --- alkali basalt --- Ratanakiri Volcanic Province --- trace elements --- O-isotopes and Hf-isotopes --- U-Pb --- (U-Th)/He --- granitic pegmatite --- gem-quality tourmaline --- Adamello Massif --- Central Alps --- Italy --- ruby --- Mogok --- Mong Hsu --- New South Wales --- trace elements --- LA-ICP-MS analysis --- inclusions --- U–Pb age-dating --- genetic diversity --- geographic typing --- corundum --- blue sapphire --- meta-ultramafic rocks --- LA-ICP-MS --- Rb-Sr and Sm-Nd isotopy --- Ilmenogorsky complex --- Ural Mountains --- metasomatism --- corundum megacrysts --- ruby --- sapphire --- plumasite --- metamorphic-metasomatic origin --- Greece --- zircon megacrysts --- placer deposits --- rare earth elements (REE) --- carbonatite-dominant melts --- Central Highlands --- Vietnam --- hyperspectral photoluminescence imaging --- LA-ICP-MS --- rubies --- corundum --- in-situ oxygen isotopes --- Paranesti Greece --- Nestos Shear Zone --- Secondary ion mass spectrometry (SIMS) --- emerald deposits --- classification --- typology --- metamorphism --- magmatism --- sedimentary --- alkaline metasomatism --- fluids --- stable and radiogenic isotopes --- genetic models --- exploration --- andradite --- demantoid --- gemstone --- Raman spectroscopy --- UV-Vis-NIR spectroscopy --- X-ray fluorescence spectroscopy --- gem-quality --- garnet --- gem-bearing pegmatite --- fluid inclusions --- P-T-X equilibria --- spodumene --- Ar/Ar dating --- blue sapphire --- anorthosites --- kyshtymites --- sapphire geochemistry --- Ilmenogorsky-Vishnevogorsky complex --- in situ LA-ICP-MS U-Pb zircon dating --- kyanite --- Mn-rich silicates --- Rhodope --- Thassos --- amphibolite facies --- metasomatism --- opal --- hyalite --- silica --- X-ray diffraction --- Raman --- Infrared --- 29Si nuclear magnetic resonance --- SEM --- provenance --- pearls --- freshwater --- saltwater --- LA-ICP-MS --- X-ray luminescence --- sapphires --- corundum --- in situ oxygen isotopes --- Orosmayo Argentina --- lamprophyre --- secondary ion mass spectrometry (SIMS) --- carbonatite --- gemstones --- corundum --- beryl --- jadeitite --- garnet --- quartz varieties --- Greece --- emeralds --- LA-ICP-MS --- UV-Vis-NIR --- FTIR --- Raman --- PL --- n/a

Microstructure and Mechanical Properties of Structural Metals and Alloys

Author:
ISBN: 9783038975052 9783038975069 Year: Pages: 272 DOI: 10.3390/books978-3-03897-506-9 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- Chemical Engineering
Added to DOAB on : 2019-06-26 08:44:06
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The papers collected in this special issue clearly reflect the modern research trends in materials science. These fields of specific attention are high-Mn TWIP steels, high-Cr heat resistant steels, aluminum alloys, ultrafine grained materials including those developed by severe plastic deformation, and high-entropy alloys. The major portion of the collected papers is focused on the mechanisms of microstructure evolution and the mechanical properties of metallic materials subjected to various thermo-mechanical, deformation or heat treatments. Another large portion of the studies is aimed on the elaboration of alloying design of advanced steels and alloys. The changes in phase content, transformation and particle precipitation and their effect on the properties are also broadly presented in this collection, including the microstructure/property changes caused by irradiation.

Keywords

Mg–Sm–Zn–Zr --- dynamic precipitation --- microstructure --- mechanical property --- bimodal ferrite steel --- ultrafine-grained microstructure --- mechanical properties --- corrosion resistance --- abnormal grain growth --- grain boundary engineering --- electron backscattered diffraction --- growth rate --- Al metal matrix composites --- microstructure --- mechanical properties --- strengthening mechanism --- hot compression --- dynamic recovery --- dynamic recrystallization --- texture --- aluminum alloys --- Al-Fe-Si-Zr system --- microstructure --- hardness --- electrical conductivity --- metal–matrix composite --- high-pressure torsion --- microstructure evolution --- microhardness --- shape memory alloy --- columnar grain --- Cu-Al-Mn --- elastocaloric effect --- strain rate --- measuring temperature --- creep --- lead-free solder --- Sb solder --- Sn-8.0Sb-3.0Ag --- solder microstructure --- martensitic steels --- creep --- precipitation --- electron microscopy --- high-Mn TWIP steel --- cold rolling --- annealing --- recovery --- recrystallization --- strengthening --- austenitic 304 stainless steels --- sub-merged arc welding --- post-weld heat treatment --- aluminum alloys --- aging --- precipitation --- electrical resistivity --- mechanical properties --- ferritic steel --- irradiation --- nanoindentation --- hardness --- transmission electron microscopy (TEM) --- microstructure --- high-entropy alloys --- high-pressure torsion --- microstructure evolution --- twinning --- mechanical properties --- welded rotor --- weld metal --- impact toughness --- PWHT --- microstructure evolution --- Cu-Cr-Zr --- precipitation --- orientation relationship --- recrystallization --- annealing twins --- structural steel plate --- nonmetallic inclusions --- rare earth control --- M23C6 --- ion irradiation --- M6C --- amorphization --- RAFM steels --- hot stamping --- press hardening --- martensitic expansion --- force peak --- cycle time --- high-Mn steel --- deformation twinning --- dynamic recrystallization --- grain refinement --- work hardening --- in situ tensile testing --- super duplex stainless steel --- SDSS --- low-temperature --- ?-phase --- SEM --- EBSD --- microstructure analysis --- n/a

Non-destructive Testing of Materials in Civil Engineering

Author:
ISBN: 9783039216901 9783039216918 Year: Pages: 448 DOI: 10.3390/books978-3-03921-691-8 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- General and Civil Engineering
Added to DOAB on : 2019-12-09 11:49:16
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Abstract

This book was proposed and organized as a means to present recent developments in the field of nondestructive testing of materials in civil engineering. For this reason, the articles highlighted in this editorial relate to different aspects of nondestructive testing of different materials in civil engineering—from building materials to building structures. The current trend in the development of nondestructive testing of materials in civil engineering is mainly concerned with the detection of flaws and defects in concrete elements and structures, and acoustic methods predominate in this field. As in medicine, the trend is towards designing test equipment that allows one to obtain a picture of the inside of the tested element and materials. From this point of view, interesting results with significance for building practices have been obtained

Keywords

non-destructive testing --- masonry structures --- strengthening --- ultrasonic tomography --- adhesion assessment --- autoclaved aerated concrete (AAC) --- compressive strength --- shape and size of specimen --- moisture of AAC --- ultrasonic testing --- gantry crane --- RMF technique --- civil engineering --- fibre-cement boards --- non-destructive testing --- acoustic emission --- degree of degradation --- thermovision --- active thermography --- thermal contrast --- defect detection --- location of inclusions --- non-destructive testing --- materials research --- building partition --- cement-based composites --- fiber cement boards --- durability --- ultrasound measurements --- spun concrete --- micro-computed tomography --- nanoindentation --- deconvolution --- mathematical morphology --- non-destructive evaluation --- structural damage --- natural frequency --- singular value truncation --- multiple feedbacks --- data noise --- NDT methods --- rebar location --- eddy-current method --- GPR method --- concrete --- concrete mix design --- concrete strength prediction --- data mining --- machine learning --- timber structures --- non-destructive methods --- ultrasonic wave --- stress wave --- drilling resistance --- X-ray micro-computed tomography --- waste brick dust --- adsorption --- lead --- cesium --- surface complexation --- precipitation --- solid-state NMR spectroscopy --- Lamb waves --- scanning laser vibrometry --- adhesive joints --- non-destructive testing --- damage detection --- excitation frequency --- nondestructive testing --- thermography --- monitoring of structures --- reinforced concrete chimney --- corrosion processes --- service life of a structure --- viscoelastic parameters --- creep test --- fatigue tests --- asphalt mixtures --- Burgers model --- four point bending beam --- pattern recognition --- acoustic emission --- Structural Health Monitoring --- brittle fracture --- diagnostics --- non-destructive testing --- reinforced concrete grandstand stadium --- vibration analysis --- crowd-induced excitation --- structural tuning --- concrete slabs and floorings --- horizontal casting --- compressive strength --- ultrasonic tests --- fibre-cement boards --- non-destructive testing --- acoustic emission --- artificial neural networks --- SEM --- non-destructive method --- damage --- mercury intrusion porosimetry --- X-ray computed tomography --- acoustic emission AE --- acoustic spectrum --- quasi brittle cement composites --- destruction process --- resistance measurement --- wood moisture sensing --- non-destructive testing --- moisture safety --- cellulose fibre cement boards --- microstructure --- nanoindentation --- SEM-EDS analysis --- temperature --- concrete elements --- concrete strength --- reinforced concrete tanks --- concrete corrosion --- sulphate corrosion --- ultrasound tests --- rebound hammer --- SilverSchmidt --- concrete --- compressive strength --- non-destructive testing --- non-destructive testing --- diagnostic --- acoustic methods --- ultrasound --- building materials --- defects

Polymetallic Metallogenic System

Author:
ISBN: 9783039212934 9783039212941 Year: Pages: 538 DOI: 10.3390/books978-3-03921-294-1 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General)
Added to DOAB on : 2019-12-09 16:10:12
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Within the last decade, the high and continuing demand for precious and base metals, as well as critical elements, has prompted a global rush on a scale never before seen. This eventually resulted in the demand for considerable innovation and improvement in mineral deposit genetic modelling and ore formation regimes for the many different types of gold deposits, now recognized, and paralleled by the wide employment of exploration techniques and a rapid expansion of geological databases. This Special Issue will show case studies of porphyry polymetal systems, orogenic gold formations, water–rock reaction, ore-forming structure evolution, mineralogy and petrology of ore deposit, ore formation regime, geochronology and geochemistry of ore deposit, ore-forming evolution, mineral exploration and cutting-edge technology in ore deposit study.

Keywords

W–Sn skarn --- whole-rock geochemistry --- Huangshaping --- Shizhuyuan --- Xianghualing --- Rare-Earth Elements --- C–O isotopes --- hydrothermal calcite --- ore-forming processes --- Phapon gold deposit --- oxidation state --- hydrous melts --- constraints on mineralization --- Beiya Au deposit --- SW China --- zircon geochronology --- magmatic oxygen fugacity --- petrogenesis --- Zaozigou deposit --- West Qinling --- archean basement --- quartz vein --- hydrothermal alteration halo --- Pinglidian gold deposit --- Jiaodong --- geochemistry --- U–Pb zircon age --- Sr–Nd isotopes --- Haoyaoerhudong gabbro --- Inner Mongolia --- geochronology --- Hf isotopes --- petrogenesis --- paleo-Tethyan ocean closure --- Zaorendao gold deposit --- West Qinling --- syenite --- post-collisional --- niobium mineralization --- Saima deposit --- Liaoning Province --- invisible gold --- visible gold --- LA-ICP-MS --- Yangshan gold belt --- West Qinling --- zircon U-Pb dating --- molybdenite Re-Os dating --- zircon Hf isotopes --- Weilasituo Sn-polymetallic deposit --- Inner Mongolia --- orogenic-gold deposit --- mineral geo-thermometry --- physicochemical condition of mineralization --- Zhengchong gold deposit --- Jiangnan orogenic belt --- lithospheric architecture --- metallogenesis --- Hf-Nd isotopic mapping --- Liaodong Peninsula --- North China Craton --- zircon U–Pb geochronology --- Sr–Nd–Pb–Hf isotopes --- low Sr and high Yb A2-type granite --- Xianghualing --- South China --- fluid inclusion --- stable isotopes --- gold deposition --- Sanshandao gold deposit --- Jiaodong --- fluid inclusions --- H–O isotope --- immiscibility --- water–rock interaction --- Sizhuang gold deposit --- Jiaodong Peninsula --- China --- Pulang porphyry Cu (–Mo–Au) deposit --- LA-ICP-MS zircon U–Pb dating --- molybdenite Re–Os dating --- high-silica adakitic rocks (HSA) --- Northwestern Yunnan Province --- C–H–O isotopes --- fluid inclusion --- Koka deposit --- orogenic gold deposit --- ore shoots --- structural control --- geostatistics --- Sizhuang gold deposit --- Jiaodong Peninsula --- skarn mineralogy --- high fugacity --- garnet Sm–Nd dating --- Late Cretaceous --- Hongshan skarn deposit --- mantle branch --- metallogenesis --- ore-controlling structures --- metallogenic rule --- ore prospecting target --- Jiaodong area --- zircon U–Pb dating --- Re–Os dating --- middle–late Jurassic --- Mo-polymetallic deposit --- Great Xing’an Range --- Dongbulage --- A-type granite --- tin mineralization --- Tiantangshan tin polymetallic deposit --- SE China --- Chishan alkaline complex --- rock geochemistry --- zircon U–Pb dating --- Lu–Hf isotopes --- Hegenshan-Heihe suture zone --- Cu-Au hydrothermal mineralization --- Hongyan deposit --- Permian A-type granite --- granite petrogenesis --- magmatic oxygen fugacity --- post-collisional slab break-off --- quartz --- trace element --- precipitation mechanism --- in situ study --- sericite --- acidity --- formation temperature --- n/a

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