Fate and transport of fragmented and spherical microplastics in saturated gravel and quartz sand.
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DOI: 10.1002/jeq2.20618
Abstract: Microplastics in urban runoff undergo rapid fragmentation and accumulate in the soil, potentially endangering shallow groundwater. To improve the understanding of microplastic transport in groundwater, column experiments were performed to compare the transport behavior of… read more here.
Keywords: spherical microplastics; quartz sand; fate transport; quartz ... See more keywords
Characteristics of the Late Devonian Tsagaan Suvarga Cu–Mo deposit, Southern Mongolia
Sign Up to like & getrecommendations! Published in 2018 at "Mineralium Deposita"
DOI: 10.1007/s00126-018-0812-6
Abstract: The Late Devonian Tsagaan Suvarga deposit (255 Mt at 0.55% Cu, 0.02% Mo) is located on the NW margin of the Tsagaan Suvarga Complex (TSC), which extends ENE over 15 × 10 km and comprises mainly medium-grained equigranular hornblende-biotite… read more here.
Keywords: tsagaan; tsagaan suvarga; quartz; late devonian ... See more keywords
Geology, igneous geochemistry, mineralization, and fluid inclusion characteristics of the Kougarok tin-tantalum-lithium prospect, Seward Peninsula, Alaska, USA
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DOI: 10.1007/s00126-019-00883-7
Abstract: The Kougarok prospect is situated in a Sn-W ( + Ta, Nb, Li, Be) metallogenic belt formed in a post-collisional to within-plate tectonic environment. Crystal fractionation of granitic magma, combined with its mixing/mingling with mantle-derived… read more here.
Keywords: fluid; geology; geochemistry; quartz ... See more keywords
Origin and classification of the Late Triassic Huaishuping gold deposit in the eastern part of the Qinling-Dabie Orogen, China: implications for gold metallogeny
Sign Up to like & getrecommendations! Published in 2020 at "Mineralium Deposita"
DOI: 10.1007/s00126-020-01004-5
Abstract: The Huaishuping gold deposit is located in the Xiong’ershan Mountains of the Qinling-Dabie Orogen of central China. The mineralisation is structurally controlled and hosted by faulted rhyolite, quartz andesite, volcaniclastic rocks and volcanic breccia assigned… read more here.
Keywords: deposit; gold deposit; china; quartz ... See more keywords
Trace element diffusion and incorporation in quartz during heating experiments
Sign Up to like & getrecommendations! Published in 2017 at "Contributions to Mineralogy and Petrology"
DOI: 10.1007/s00410-017-1350-4
Abstract: Heating of quartz crystals in order to study melt and high-temperature fluid inclusions is a common practice to constrain major physical and chemical parameters of magmatic and hydrothermal processes. Diffusion and modification of trace element… read more here.
Keywords: heating experiments; quartz crystals; diffusion; melt inclusions ... See more keywords
Discontinuous precipitation of rutilated quartz: grain-boundary migration induced by changes to the equilibrium solubility of Ti in quartz
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DOI: 10.1007/s00410-020-01676-2
Abstract: We experimentally investigated changes to the titanium concentrations of quartz-rich rocks caused by grain-boundary migration. Synthesis experiments were performed to make high-Ti quartz starting materials for usage in recrystallization experiments. We isothermally recrystallized quartz starting… read more here.
Keywords: grain boundary; quartz; solubility; grain ... See more keywords
Monocrystalline Quartz ICP Etching: Road to High-Temperature Dry Etching
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DOI: 10.1007/s11090-019-10025-6
Abstract: In this study, the dry plasma-chemical etching process of monocrystalline SiO 2 (quartz) in a fluoride-based (sulfur hexafluoride, SF 6 ) inductively coupled plasma (ICP) was investigated. The etching rate ( V etch ) dependencies… read more here.
Keywords: icp; temperature; quartz; etch ... See more keywords
Effect of fines content and plasticity on undrained shear strength of quartz-clay mixtures
Sign Up to like & getrecommendations! Published in 2018 at "Arabian Journal of Geosciences"
DOI: 10.1007/s12517-018-4114-1
Abstract: Data obtained from previous soil borings revealed that, natural soils free of fines are rarely encountered in the field. On this basis, the aim of this study is to investigate the effects of plastic fines… read more here.
Keywords: quartz clay; shear strength; quartz; undrained shear ... See more keywords
Breakage, scarring, scratches and explosions: understanding impact trace formation on quartz
Sign Up to like & getrecommendations! Published in 2018 at "Archaeological and Anthropological Sciences"
DOI: 10.1007/s12520-018-0738-z
Abstract: Quartz projectiles have received attention in the recent years due to, for instance, their discovery at prominent South African Middle Stone Age sites. However, very few methodological studies have been dedicated to quartz armatures and… read more here.
Keywords: breakage scarring; formation; scarring scratches; scratches explosions ... See more keywords
The secret is quartz: technology of production of an eleventh-twelfth century western Mediterranean polychrome glazed ware
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DOI: 10.1007/s12520-024-02040-2
Abstract: A group of a well-known polychrome glazed ceramic, widespread in the western Mediterranean in the eleventh and first half of the twelfth centuries, has been analysed for the first time using Optical Microscopy (OM) and… read more here.
Keywords: technology; quartz; western mediterranean; production ... See more keywords
Structural Networks Constraints on Alteration and Mineralization Processes in the Jiaojia Gold Deposit, Jiaodong Peninsula, China
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DOI: 10.1007/s12583-020-1276-z
Abstract: Structural network studies could give appropriate opportunities to understanding structural/hydrothermal events, transportation of ore-forming fluids and water/rock interaction process. Four structural deformation/hydrothermal events have been identified in the Jiaojia fault zone according to microtexture and… read more here.
Keywords: feldspar alteration; alteration; deformation; quartz ... See more keywords