Journal articles on the topic 'Tellurium cycling'

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1

Koketsu, Toshinari, Benjamin Paul, Chao Wu, Ralph Kraehnert, Yunhui Huang, and Peter Strasser. "A lithium–tellurium rechargeable battery with exceptional cycling stability." Journal of Applied Electrochemistry 46, no. 6 (April 9, 2016): 627–33. http://dx.doi.org/10.1007/s10800-016-0959-8.

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2

Akin, T. G., Bryan Hemingway, and Steven Peil. "Tellurium spectrometer for 1S01P1 transitions in strontium and other alkaline-earth atoms." Review of Scientific Instruments 93, no. 5 (May 1, 2022): 053002. http://dx.doi.org/10.1063/5.0084122.

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We measure the spectrum of tellurium-130 in the vicinity of the 461 nm [Formula: see text] cycling transition in neutral strontium, a popular element for atomic clocks, quantum information, and quantum-degenerate gases. The lack of hyperfine structure in tellurium results in a spectral density of transitions nearly 50 times lower than that available in iodine, making use of tellurium as a laser-frequency reference challenging. By frequency-offset locking two lasers, we generate the large frequency shifts required to span the difference between a tellurium line and the [Formula: see text] resonance in strontium or other alkaline-earth atoms. The resulting laser architecture is long-term frequency stable, widely tunable, and optimizes the available laser power. The versatility of the system is demonstrated by using it to quickly switch between any strontium isotope in a magneto-optical trap and by adapting it to spectroscopy on a thermal beam with a different alkaline-earth atom.
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3

Missen, Owen P., Barbara Etschmann, Stuart J. Mills, Santonu K. Sanyal, Rahul Ram, Jeremiah Shuster, Maria A. D. Rea, et al. "Tellurium biogeochemical transformation and cycling in a metalliferous semi-arid environment." Geochimica et Cosmochimica Acta 321 (March 2022): 265–92. http://dx.doi.org/10.1016/j.gca.2021.12.024.

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4

Salakhova, Elza, D. B. Tagiyev, P. E. Kalantarova, and A. M. Asgarova. "The Electrodeposition rhenium-tellurium alloys from chlorides asides electrolytes." JOURNAL OF ADVANCES IN CHEMISTRY 15, no. 2 (July 4, 2018): 6199–206. http://dx.doi.org/10.24297/jac.v15i2.7457.

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There has been investigated the joint electrodeposition of rhenium with tellur from chlorides electrolyte, by measuring the cycling volt-ampere curves there has been determined the field of potentials, at the presence of which the joint electrodeposition of rhenium with sulphur takes place. It has been shown, that the joint deposition of rhenium with tellur goes with a certain depolarization, besides, the depolarization is caused by the energy emanating along formation of ReTe2 compounds. There was studied the influence of current density, temperature and acidity on the composition and quality of cathode sediments. It was established, that with the rise of current density and the temperature of electrolyte the concentration of rhenium in the alloy increases.
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5

Zhang, Yue, Wei Lu, Donald J. Freschi, Yulong Liu, and Jian Liu. "Investigation of Cathode Structure and Electrolyte Chemistry for Emerging Metal-Tellurium Batteries." ECS Meeting Abstracts MA2022-01, no. 4 (July 7, 2022): 567. http://dx.doi.org/10.1149/ma2022-014567mtgabs.

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Tellurium (Te) has received rising attention as electrode materials in next-generation high-energy-density rechargeable batteries due to its superior electronic conductivity and comparable specific volumetric capacity compared to conversion-type sulfur or selenium. To date, there is a lack of comprehensive understanding regarding the fundamental electrochemistry, structure design and electrolyte chemistry in emerging metal-Te battery systems. Herein, extensive efforts have been made in our group to figure out the role of carbon host in Te/C cathode architecture and construct highly stable Te/C cathodes. Our finding is that an ideal porous carbon is required to possess a majority of micropores to confine Te active materials and a small portion of mesopores to facilitate electrolyte wetting and Li-ion transport. Importantly, a durable Li-Te battery over 1,000 cycles at 2C was achieved with microporous carbon as Te host to constrain volume change of Te. A quasi-solid-state Li-Te is also constructed and demonstrates superior cycling and rate performance than Li-S/Se batteries with the same cell configuration. Moreover, the electrolyte chemistry and reaction mechanism in K-Te battery system are comprehensively revealed from the aspects of redox kinetics and surface chemistry. The two electrolyte salts (potassium hexafluorophosphate, KPF6 and potassium bis(fluorosulfonyl)imide, KFSI) induce similar phase transformation but different specific capacity, reaction kinetics, and SEI composition on the Te/C cathode. These findings are expected to promote the development of Te-based next-generation energy storage systems.
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6

Aghazadeh, Mustafa, and Hamzeh Foratirad. "Facile fabrication of mixed samarium/tellurium metal–organic frameworks onto Ni foam and its outstanding cycling performance as binder-free battery-type electrode for supercapacitors." Materials Letters 313 (April 2022): 131804. http://dx.doi.org/10.1016/j.matlet.2022.131804.

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7

Yu, Zhijing, Shuqiang Jiao, Jiguo Tu, Yiwa Luo, Wei-Li Song, Handong Jiao, Mingyong Wang, Haosen Chen, and Daining Fang. "Rechargeable Nickel Telluride/Aluminum Batteries with High Capacity and Enhanced Cycling Performance." ACS Nano 14, no. 3 (March 2, 2020): 3469–76. http://dx.doi.org/10.1021/acsnano.9b09550.

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8

Brostow, Witold, Tea Datashvili, Haley E. Hagg Lobland, Travis Hilbig, Lisa Su, Carolina Vinado, and John White. "Bismuth telluride-based thermoelectric materials: Coatings as protection against thermal cycling effects." Journal of Materials Research 27, no. 22 (October 29, 2012): 2930–36. http://dx.doi.org/10.1557/jmr.2012.335.

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9

Harish, S., D. Sivaprahasam, B. Jayachandran, R. Gopalan, and G. Sundararajan. "Performance of bismuth telluride modules under thermal cycling in an automotive exhaust thermoelectric generator." Energy Conversion and Management 232 (March 2021): 113900. http://dx.doi.org/10.1016/j.enconman.2021.113900.

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10

Han, Chao, Zhen Li, Wei-jie Li, Shu-lei Chou, and Shi-xue Dou. "Controlled synthesis of copper telluride nanostructures for long-cycling anodes in lithium ion batteries." Journal of Materials Chemistry A 2, no. 30 (June 18, 2014): 11683. http://dx.doi.org/10.1039/c4ta01579g.

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11

Kim, Woo Seob, Thuan Ngoc Vo, and Il Tae Kim. "GeTe-TiC-C Composite Anodes for Li-Ion Storage." Materials 13, no. 19 (September 23, 2020): 4222. http://dx.doi.org/10.3390/ma13194222.

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Germanium boasts a high charge capacity, but it has detrimental effects on battery cycling life, owing to the significant volume expansion that it incurs after repeated recharging. Therefore, the fabrication of Ge composites including other elements is essential to overcome this hurdle. Herein, highly conductive Te is employed to prepare an alloy of germanium telluride (GeTe) with the addition of a highly conductive matrix comprising titanium carbide (TiC) and carbon (C) via high-energy ball milling (HEBM). The final alloy composite, GeTe-TiC-C, is used as a potential anode for lithium-ion cells. The GeTe-TiC-C composites having different combinations of TiC are characterized by electron microscopies and X-ray powder diffraction for structural and morphological analyses, which indicate that GeTe and TiC are evenly spread out in the carbon matrix. The GeTe electrode exhibits an unstable cycling life; however, the addition of higher amounts of TiC in GeTe offers much better electrochemical performance. Specifically, the GeTe-TiC (20%)-C and GeTe-TiC (30%)-C electrodes exhibited excellent reversible cyclability equivalent to 847 and 614 mAh g−1 after 400 cycles, respectively. Moreover, at 10 A g−1, stable capacity retentions of 78% for GeTe-TiC (20%)-C and 82% for GeTe-TiC (30%)-C were demonstrated. This proves that the developed GeTe-TiC-C anodes are promising for potential applications as anode candidates for high-performance lithium-ion batteries.
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12

Sredni, Benjamin, Siona Eliyahu, Harry Lander, Michael Albeck, and Shraga Segal. "Immunomodulator AS101 potentiates apoptosis on Ha-Ras transformed cells which correlates with suppression of a survival protein Akt (48.20)." Journal of Immunology 178, no. 1_Supplement (April 1, 2007): S78. http://dx.doi.org/10.4049/jimmunol.178.supp.48.20.

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Abstract The Ras family is the most widely mutated group of human proto-oncogene. Previously, we found an organic Tellurium compound, AS101, which exhibits immunomodulatory activity and strong anti-tumor effects. Whether these properties can be exploited for cancer therapy was examined using v-Ha-Ras transformed and V-mos transformed fibroblasts cells. In this study AS101 appeared to selectively block ~90 % of the proliferative growth of v-Ha-Ras transformed cells, while not affecting the growth of V-mos transformed cells. Furthermore, the proliferative growth inhibiting effect of AS101 was prevented when the activity of p21Ras was blocked by expression of a dominant negative mutant 116y of the v-Ha-Ras or by treating Ha-Ras transformed cells with a farnesyltransferase inhibitor. The anti-proliferative effect of AS101 was accompanied by morphological changes typical of apoptosis i.e.: membrane blebbing, condensation of nuclear chromatin, and formation of apoptotic bodies. AS101-induced apoptosis of v-Ha-Ras transformed cells correlated with suppression of Akt protein expression, activation of caspases, and induction of the cyclin-dependent kinase inhibitors p21Cip1 and p27Kip1. Thus, our results suggest that AS101 can be used to effectively treat tumors which, are induced due to an oncogenic mutation in p21Ras encoding gene and to selectively block oncogenic function of mutated Ha-Ras in human tumors.
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13

Wang, Yixian, Hui Dong, Naman Katyal, Graeme Henkelman, John Watt, and David Mitlin. "(Invited) Anode-Free Sodium Metal Batteries." ECS Meeting Abstracts MA2022-02, no. 4 (October 9, 2022): 456. http://dx.doi.org/10.1149/ma2022-024456mtgabs.

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Sodium-ion batteries (SIBs) have been regarded as one of the most promising alternatives to lithium-ion batteries (LIBs) due to their analogous working mechanism but greater abundance. The cost-effectiveness of Na batteries is expected to overtake that of LIBs in terms of electromobile applications if their energy densities can reach 200 Wh kg-1. In an anode-free configuration, all active sodium is stored in the cathode while anode only contains current collector with zero excess sodium, therefore achieving maximized energy density, significantly reduced cost, and simplified manufacture procedures. However, the anode-free batteries often suffer rapid capacity decay due to the absence of a reservoir to replenish the Na loss during cycling. In this work, we employed repeated cold rolling and folding to fabricate a metallurgical composite of sodium-antimony-telluride Na2(Sb2/6Te3/6Vac1/6) dispersed in electrochemically active sodium metal, termed “NST-Na”. This new intermetallic has a vacancy-rich thermodynamically stable fcc structure and enables state-of-the-art electrochemical performance in widely employed carbonate and ether electrolytes. NST-Na achieves 100% depth-of-discharge (DOD) in 1 M NaPF6 in G2, with 15 mAh cm-2 at 1 mA cm-2 and CE of 99.4%, for 1000 hours of plating/stripping. Sodium metal batteries (SMB, NMB) with NST-Na and Na3V2(PO4)3 (NVP) or sulfur cathodes give significantly improved energy, cycling and CE (> 99%). Anode-Free battery with NST collector and NVP obtains 0.23% capacity decay per cycle. Imaging and tomography using (cryo-)FIB sectioning, (cryo-)SEM, and (cryo-)TEM imaging indicate that sodium metal fills the open space inside the self-supporting sodiophilic NST skeleton, resulting in dense (pore-free and SEI-free) metal deposits with flat surfaces. The baseline Na deposit consists of filament-like dendrites and Dead Metal, intermixed with pores and SEI. Density functional theory (DFT) calculations show that uniqueness of NST lies in the thermodynamic stability of Na atoms (rather than clusters) on its surface that leads to planar wetting, and in its own stability that prevents decomposition during cycling. Figure 1
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14

Nguyen, Quoc Hanh, Seongjoon So, and Jaehyun Hur. "Enhanced Lithium Ion Storage by Titanium Dioxide Addition to Zinc Telluride-Based Alloy Composites." Journal of Nanoscience and Nanotechnology 20, no. 11 (November 1, 2020): 6815–20. http://dx.doi.org/10.1166/jnn.2020.18795.

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A nanostructured ZnTe–TiO2–C composite is synthesized, via a two-step high-energy mechanical milling process, for use as a new promising anode material in Li-ion batteries (LIBs). X-ray diffraction and X-ray photoelectron spectroscopy results confirm the successful formation of ZnTe alloy and rutile TiO2 phases in the composites using ZnO, Te, Ti, and C as the starting materials. Scanning electron microscopy, transmission electron microscopy, and energy dispersive X-ray spectroscopy mapping measurements further reveal that ZnTe and TiO2 nanocrystals are uniformly dispersed in an amorphous carbon matrix. The electrochemical performances of ZnTe–TiO2–C and other control samples were investigated. Compared to ZnTe–TiO2 and ZnTe-C composites, the ZnTe– TiO2–C nanocomposite exhibits better performance, thereby delivering a high reversible capacity of 561 mAh g−1 over 100 cycles and high rate capability at a high current density of 5 A g−1 (79% capacity retention of its capacity at 0.1 A g−1). Furthermore, the long-term cyclic performance of ZnTe–TiO2–C at a current density of 0.5 A g−1 shows excellent reversible capacity of 528 mAh g−1 after 600 cycles. This improvement can be attributed to the presence of a TiO2-C hybrid matrix, which acts as a buffering matrix that effectively mitigates the large volume changes of active ZnTe during repeated cycling. Overall, the ZnTe–TiO2–C nanocomposite is a potential candidate for high-performance anode materials in LIBs.
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15

Verma, Rakesh, Chae-Eun Moon, and Chan-Jin Park. "Antimony Telluride Nanocomposite As a High Performance Anode for Rechargeable Potassium-Ion Batteries." ECS Meeting Abstracts MA2022-02, no. 4 (October 9, 2022): 399. http://dx.doi.org/10.1149/ma2022-024399mtgabs.

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The development of high-capacity and low-cost energy storage systems are a top priority in electric vehicles and smart grids. Room temperature potassium-ion batteries (PIBs), which have the advantages of high theoretical capacity, abundant earth reserves, and low potassium costs, have recently emerged as an appealing alternative to traditional lithium-ion batteries (LIBs). In particular, finding advanced anode materials with suitable operation potential and high capacity is of significance for next-generation PIBs. In this regard, Sb-based materials have recently gained popularity as promising anode materials for batteries in terms of their suitable working potential, high density, and theoretical capacity. Among them, Sb2Te3 has a much higher density (6.66 g/cm3) than other Sb-based materials such as Sb2O3, Sb2S3, and Sb2Se3. This suggests that Sb2Te3 can have a high theoretical capacity. In addition, Te exhibits a higher conductivity than S or Se. Accordingly, the Sb2Te3 is appealing as an ideal anode for PIBs. Unfortunately, the Sb2Se3 has poor cycling stability and rate performances, which is primarily owing to the large volume change during alloying and dealloying. In this study, using a simple hydrothermal strategy, we synthesized a carbon-coated Sb2Te3 nanocomposite (Sb2Te3@C). In the novel design, the Sb2Te3@C nanocomposite is compactly encapsulated by a uniform carbon layer, which effectively relieves structural stress leading to preventing structural pulverization and stabilize the solid electrolyte interface layer. As expected with this optimal design, the Sb2Te3@C nanocomposite electrode performed nicely suitable for PIBs. In addition, the effect of the alloying/dealloying process on the crystal structure of Sb2Te3@C was investigated using in- situ/ex-situ XRD patterns recorded at various stages of discharge and charge to clarify the alloying mechanism. Furthermore, a full cell made up of a Sb2Te3@C anode and a potassium Prussian blue type cathode also exhibited successful operation.
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16

Wang, Yixian, Hui Dong, Naman Katyal, Hongchang Hao, Pengcheng Liu, Hugo Celio, Graeme Henkelman, John Watt, and David Mitlin. "A Sodium–Antimony–Telluride Intermetallic Allows Sodium‐Metal Cycling at 100% Depth of Discharge and as an Anode‐Free Metal Battery." Advanced Materials 34, no. 1 (November 14, 2021): 2106005. http://dx.doi.org/10.1002/adma.202106005.

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17

Wang, Yixian, Hui Dong, Naman Katyal, Hongchang Hao, Pengcheng Liu, Hugo Celio, Graeme Henkelman, John Watt, and David Mitlin. "A Sodium–Antimony–Telluride Intermetallic Allows Sodium‐Metal Cycling at 100% Depth of Discharge and as an Anode‐Free Metal Battery (Adv. Mater. 1/2022)." Advanced Materials 34, no. 1 (January 2022): 2270001. http://dx.doi.org/10.1002/adma.202270001.

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18

Nanda, Sanjay, Amruth Bhargav, Zhou Jiang, Xunhua Zhao, Yuanyue Liu, and Arumugam Manthiram. "Implications of in situ chalcogen substitutions in polysulfides for rechargeable batteries." Energy & Environmental Science, 2021. http://dx.doi.org/10.1039/d1ee01113h.

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19

Lu, Guolong, Chunnuan Ye, Wenyan Li, Xuedong He, Guang Chen, Jun Li, Huile Jin, Shun Wang, and Jichang Wang. "Advanced TexSy-C Nanocomposites for High-Performance Lithium Ion Batteries." Frontiers in Chemistry 9 (May 25, 2021). http://dx.doi.org/10.3389/fchem.2021.687392.

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This study is dedicated to expand the family of lithium-tellurium sulfide batteries, which have been recognized as a promising choice for future energy storage systems. Herein, a novel electrochemical method has been applied to engineer micro-nano TexSy material, and it is found that TexSy phases combined with multi-walled carbon nanotubes endow the as-constructed lithium-ion batteries excellent cycling stability and high rate performance. In the process of material synthesis, the sulfur was successfully embedded into the tellurium matrix, which improved the overall capacity performance. TexSy was characterized and verified as a micro-nano-structured material with less Te and more S. Compared with the original pure Te particles, the capacity is greatly improved, and the volume expansion change is effectively inhibited. After the assembly of Li-TexSy battery, the stable electrical contact and rapid transport capacity of lithium ions, as well as significant electrochemical performance are verified.
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20

Goswami, Pranami, Kuang He, Jinhua Li, Yongxin Pan, Andrew P. Roberts, and Wei Lin. "Magnetotactic bacteria and magnetofossils: ecology, evolution and environmental implications." npj Biofilms and Microbiomes 8, no. 1 (June 1, 2022). http://dx.doi.org/10.1038/s41522-022-00304-0.

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AbstractMagnetotactic bacteria (MTB) are a group of phylogenetically diverse and morphologically varied microorganisms with a magnetoresponsive capability called magnetotaxis or microbial magnetoreception. MTB are a distinctive constituent of the microbiome of aquatic ecosystems because they use Earth’s magnetic field to align themselves in a north or south facing direction and efficiently navigate to their favored microenvironments. They have been identified worldwide from diverse aquatic and waterlogged microbiomes, including freshwater, saline, brackish and marine ecosystems, and some extreme environments. MTB play important roles in the biogeochemical cycling of iron, sulphur, phosphorus, carbon and nitrogen in nature and have been recognized from in vitro cultures to sequester heavy metals like selenium, cadmium, and tellurium, which makes them prospective candidate organisms for aquatic pollution bioremediation. The role of MTB in environmental systems is not limited to their lifespan; after death, fossil magnetosomal magnetic nanoparticles (known as magnetofossils) are a promising proxy for recording paleoenvironmental change and geomagnetic field history. Here, we summarize the ecology, evolution, and environmental function of MTB and the paleoenvironmental implications of magnetofossils in light of recent discoveries.
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21

Malamas, J., R. P. Bambha, J. B. Ramsey, W. C. Garrett, E. G. Kelso, and T. A. Hahn. "Properties of Graphite Interconnect Circuit Boards with Anisotropic Thermal Expansion." MRS Proceedings 216 (1990). http://dx.doi.org/10.1557/proc-216-385.

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ABSTRACTWe report the investigation of an interconnect circuit board (ICB) with anisotropic thermal expansion for use with bump bonded, indirect hybrid, scanning focal plane arrays. This ICB is designed to reduce significantly the thermal stresses on the indium bump bonds during thermal cycling. Highly oriented pyrolitic graphite (HOPG) was chosen because its anisotropic thermal expansion meets the criteria for forming an indirect hybrid ICB using silicon processor circuits and mecury cadmium telluride detectors. Properties of HOPG influencing its performance as an ICB have been investigated including thermal expansion, electrical conductivity, durability, and adherence of electrically insulating thin films.
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22

Taylor, Ryan D., Thomas Monecke, T. James Reynolds, and Jochen Monecke. "Paragenesis of an Orogenic Gold Deposit: New Insights on Mineralizing Processes at the Grass Valley District, California." Economic Geology, December 7, 2020. http://dx.doi.org/10.5382/econgeo.4794.

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Abstract The Grass Valley orogenic gold district in the Sierra Nevada foothills province, central California, is the largest historical gold producer of the North American Cordillera. Gold mineralization is associated with shallowly dipping north-south veins hosted by the 160 Ma Grass Valley granodiorite to the southwest of the Grass Valley fault and steeply dipping east-west veins in accreted oceanic rocks to the northeast of this major fault. Quartz veins from both vein types show well-preserved primary textural relationships. Using a combination of petrographic and microanalytical techniques, the paragenetic sequence of minerals within the veins and the compositions of ore minerals were determined to constrain the mechanisms of quartz vein formation and gold deposition. The veins are composed of early quartz that formed through cooling of hydrothermal fluids derived from a geopressured reservoir at depth. The early quartz shows growth zoning in optical cathodoluminescence and contains abundant growth bands of primary inclusions. The primary inclusion assemblages and myriads of crosscutting secondary fluid inclusions have been affected by postentrapment modification, suggesting that early quartz formation was postdated by pronounced pressure fluctuations. These pressure fluctuations, presumably involving changes from lithostatic to hydrostatic conditions, may be related to fault failure of the host structure as predicted by the fault-valve model. Fluid flow associated with pressure cycling took place along microfractures and grain boundaries resulting in extensive recrystallization of the early quartz. Deposition of pyrite, arsenopyrite, and first-generation gold from these hydrothermal fluids causing recrystallization of the early quartz occurred as a result of wall-rock sulfidation. The gold forms invisible gold in the compositionally zoned pyrite or micron-sized inclusions within pyrite growth zones. The latest growth zones in euhedral quartz crystals that formed in association with this stage of the paragenesis contain very rare primary fluid inclusions that have not been affected by postentrapment modification. The hydrothermal system transitioned entirely to hydrostatic conditions immediately after formation of the latest quartz, explaining the preservation of the primary fluid inclusions. The formation of minor quartz in open spaces was followed by the deposition of second-generation native gold and telluride minerals that are commonly associated with base metal sulfides. Ore formation at this stage of the paragenesis is attributed to the rapid decompression of hydrothermal fluids escaping from the geopressured part of the crust into the overlying hydrostatic realm. There is no fluid inclusion evidence that this pressure drop resulted in fluid immiscibility of the hydrothermal fluids. Fluid inclusion evidence suggests that the north-south veins formed at a paleodepth of ~8 km, whereas the east-west veins appear to have formed at ~10 to 11 km below surface, confirming previous inferences that the NE-dipping Grass Valley reverse fault accommodated a large displacement. The findings of the study at Grass Valley have significant implications for the model for orogenic gold deposits, as the reconstruction of the paragenetic relationships provides evidence for the occurrence of two discrete events of gold introduction that occurred at different conditions during the evolution of the hydrothermal system.
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