Hydrothermal fluids are major agents for mass and heat transfer in the upper crust. Precise age dating tracing of origins fluid fluxes can provide vital information on geological past, yet detailed reconstructions past hydrothermal activity Precambrian terranes commonly hindered by multistage overprints recrystallization events. In this contribution, we present integrated U-Pb Re-Os isotopic an...

The presented studies are aimed to determine the formation patterns of gold-rare metal mineralization within one most inaccessible Arctic islands Russian Federation, Bolshevik Island Severnaya Zemlya archipela-go. relevance work is determined by high probability discovering a significant in terms reserves deposit, which proved many researchers on example known large deposits be typical feature ...

maherabad prospect area, which is studied in detail, is the first porphyry cu-au mineralization in the east of iran. based on relation of mineralization with subvolcanic intrusive bodies mostly monzonitic with porphyry texture, extent and types of alteration including potassic, sericitic- potassic, quartz- sericite- carbonate- pyrite, quartz- carbonate- pyrite, silicification- propylitic, propy...

As a result of the different degrees of stabilization experienced by the 4f, 5d, and 6s orbitals occurring upon ionization of the neutral metal, the lanthanides (La-Lu, Z ) 57-71) exist almost exclusively in their trivalent state Ln(III) ([Xe]4fn, n ) 0-14) in coordination complexes or supramolecular assemblies.1 Except for some arene compounds involving bulky substituted benzenes or cyclo-octa...

Abstract Here, we present in situ U–Pb laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS) ages of andradite-grossular garnet from four magmatic-hydrothermal polymetallic skarn prospects the Schwarzenberg District, Erzgebirge (Germany), located internal zone Variscan Orogenic Belt. Within geochronological framework igneous rocks and hydrothermal mineralization Erzgebirge, ob...

The vein-type Chomalu polymetallic epithermal deposit, located in the Tarom-Hashtjin Metallogenic Province (THMP), western Alborz, formed two separate mineralized zones controlled by fault within andesite and olivine basalt host rocks. deposit occurs adjacent to Varmarziar quartz monzonite, monzodiorite, monzosyenite intrusions. Ore mineralization consists of three stages; (i) an early stage do...

The northern flank of the North China Craton (NCC) hosts a linear zone gold, molybdenum, silver, lead, and zinc polymetallic ore deposits. Among these, Yingfang Pb-Zn-Ag deposit is located in central part Yanshan–Liaoxi metallogenic belt (YLMB) which extends for approximately 1000 km forms major mineralized zone. In this study, we characterize mineralization trace genesis based on new sulfur le...

The giant Gejiu Sn–Cu polymetallic ore deposit is one of the largest Sn producers in world, and related time space to highly evolved S type granitic intrusion. mineralization processes can be divided into four stages: (I) skarnization; (II) greisenization; (III) cassiterite–sulfid; (IV) cassiterite–tourmaline–quartz. Five types fluid inclusions were recognized using optical petrography, microth...

The Luyuangou gold deposit is located in the eastern section of Xiong’ershan Au-Ag polymetallic district (XESPMD) and consists a few gold-bearing veins found EW-striking faults Archean Taihua Mesoproterozoic Xiong’er Groups. deposits contain numerous pyrites thin quartz veins, representing an ideal tool for explaining enigmatic genesis XESPMD. distributions trace elements sulfur isotopes pyrite...

Amendment of a soil slurry with low concentrations of a cyclodextrin, hydroxypropyl-beta-cyclodextrin (HPCD), (0.05-0.5 g l(-1)) increased the phenanthrene mineralization rate of a microbial consortium by 25% under Fe(III)-reducing conditions. Although a higher concentration (5.0 g l(-1)) resulted in a faster initial rate of mineralization, mineralization ceased after 25 days with maximum miner...