Log in

Relevant bibliographies by topics / Volatiles Elements / Journal articles

To see the other types of publications on this topic, follow the link: Volatiles Elements.

Journal articles on the topic 'Volatiles Elements'

Author: Grafiati

Published: 8 June 2024

Last updated: 31 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Volatiles Elements.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Tian, Zhen, Tomáš Magna, James M. D. Day, et al. "Potassium isotope composition of Mars reveals a mechanism of planetary volatile retention." Proceedings of the National Academy of Sciences 118, no. 39 (2021): e2101155118. http://dx.doi.org/10.1073/pnas.2101155118.

Full text

Abstract:

The abundances of water and highly to moderately volatile elements in planets are considered critical to mantle convection, surface evolution processes, and habitability. From the first flyby space probes to the more recent “Perseverance” and “Tianwen-1” missions, “follow the water,” and, more broadly, “volatiles,” has been one of the key themes of martian exploration. Ratios of volatiles relative to refractory elements (e.g., K/Th, Rb/Sr) are consistent with a higher volatile content for Mars than for Earth, despite the contrasting present-day surface conditions of those bodies. This study pr

APA, Harvard, Vancouver, ISO, and other styles

2

Day, James M. D., Frédéric Moynier, and Charles K. Shearer. "Late-stage magmatic outgassing from a volatile-depleted Moon." Proceedings of the National Academy of Sciences 114, no. 36 (2017): 9547–51. http://dx.doi.org/10.1073/pnas.1708236114.

Full text

Abstract:

The abundance of volatile elements and compounds, such as zinc, potassium, chlorine, and water, provide key evidence for how Earth and the Moon formed and evolved. Currently, evidence exists for a Moon depleted in volatile elements, as well as reservoirs within the Moon with volatile abundances like Earth’s depleted upper mantle. Volatile depletion is consistent with catastrophic formation, such as a giant impact, whereas a Moon with Earth-like volatile abundances suggests preservation of these volatiles, or addition through late accretion. We show, using the “Rusty Rock” impact melt breccia,

APA, Harvard, Vancouver, ISO, and other styles

3

Zhang, Youxue. "Review of melt inclusions in lunar rocks: constraints on melt and mantle composition and magmatic processes." European Journal of Mineralogy 36, no. 1 (2024): 123–38. http://dx.doi.org/10.5194/ejm-36-123-2024.

Full text

Abstract:

Abstract. Mineral-hosted melt inclusions provide a window into magmatic processes and pre-eruptive liquid compositions. Because melt inclusions are small (typically < 100 µm), the study of lunar melt inclusions is enabled by advancements of microbeam instrumental techniques. In the 1970s immediately following the Apollo and Luna missions, major and minor oxide concentrations of lunar melt inclusions were measured using electron microprobes. The data were used to understand magma evolution, and they revealed the immiscibility of two silicate liquids in the late stage of lunar magma evolution

APA, Harvard, Vancouver, ISO, and other styles

4

Chen, Zuxing, Landry Soh Tamehe, Haiyan Qi, Yuxiang Zhang, Zhigang Zeng, and Mingjiang Cai. "Using Apatite to Track Volatile Evolution in the Shallow Magma Chamber below the Yonaguni Knoll IV Hydrothermal Field in the Southwestern Okinawa Trough." Journal of Marine Science and Engineering 11, no. 3 (2023): 583. http://dx.doi.org/10.3390/jmse11030583.

Full text

Abstract:

The Yonaguni Knoll IV is an active seafloor hydrothermal system associated with submarine silicic volcanism located in the “cross back-arc volcanic trail” (CBVT) in the southwestern Okinawa Trough. However, the behavior of volatiles during magmatic differentiation in the shallow silicic magma chamber is unclear. Here, the volatile contents of apatite inclusions trapped in different phenocrysts (orthopyroxene and amphibole) and microphenocrysts in the rhyolite from the Yonaguni Knoll IV hydrothermal field were analyzed by using electron microprobe analysis, which aims to track the behavior of v

APA, Harvard, Vancouver, ISO, and other styles

5

Grewal, Damanveer S., Yoshinori Miyazaki, and Nicole X. Nie. "Contribution of the Moon-forming Impactor to the Volatile Inventory in the Bulk Silicate Earth." Planetary Science Journal 5, no. 8 (2024): 181. http://dx.doi.org/10.3847/psj/ad5b5d.

Full text

Abstract:

Abstract The timing and mechanism by which the present-day inventory of life-essential volatiles hydrogen–carbon–nitrogen–sulfur (H–C–N–S) in the bulk silicate Earth (BSE) was established are debated. In this study we have modeled the equilibrium partitioning of H–C–N–S between core, magma ocean (MO), and atmosphere to determine whether the Moon-forming impactor (MFI) was the primary source of volatiles in the BSE. Our findings suggest that the MFI’s core and MO-degassed atmosphere were its primary H–C–N–S reservoirs. Since the MFI likely lost its MO-degassed atmosphere before the giant impact

APA, Harvard, Vancouver, ISO, and other styles

6

Miller, Johanna L. "Krypton isotopes tell the early story of Earth’s life-giving elements." Physics Today 75, no. 3 (2022): 16–18. http://dx.doi.org/10.1063/pt.3.4956.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Liu, Xuena, Jinghua Guo, Zijing Chen, Kun Xu, and Kang Xu. "Detection of Volatile Compounds and Their Contribution to the Nutritional Quality of Chinese and Japanese Welsh Onions (Allium fistulosum L.)." Horticulturae 10, no. 5 (2024): 446. http://dx.doi.org/10.3390/horticulturae10050446.

Full text

Abstract:

Allium vegetables attract attention for their flavor and aroma in Asia, especially in China and Japan. The aim of this experiment was to uncover the differences in the unique flavor compounds of two Welsh onions that are typical cultivars in China and Japan (‘Zhangqiu’ and ‘Tenko’). Chemical methods and solid-phase microextraction–gas chromatography-mass spectrometry were performed to determine the nutritional quality and quantity of volatile compounds of various organs of Welsh onions. The results show that a total of 30, 37, and 28 compounds were detected in the roots, pseudostem, and leaves

APA, Harvard, Vancouver, ISO, and other styles

8

Day, James M. D., and Frederic Moynier. "Evaporative fractionation of volatile stable isotopes and their bearing on the origin of the Moon." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 372, no. 2024 (2014): 20130259. http://dx.doi.org/10.1098/rsta.2013.0259.

Full text

Abstract:

The Moon is depleted in volatile elements relative to the Earth and Mars. Low abundances of volatile elements, fractionated stable isotope ratios of S, Cl, K and Zn, high μ ( 238 U/ 204 Pb) and long-term Rb/Sr depletion are distinguishing features of the Moon, relative to the Earth. These geochemical characteristics indicate both inheritance of volatile-depleted materials that formed the Moon and planets and subsequent evaporative loss of volatile elements that occurred during lunar formation and differentiation. Models of volatile loss through localized eruptive degassing are not consistent w

APA, Harvard, Vancouver, ISO, and other styles

9

Degruyter, Wim, Andrea Parmigiani, Christian Huber, and Olivier Bachmann. "How do volatiles escape their shallow magmatic hearth?" Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 377, no. 2139 (2019): 20180017. http://dx.doi.org/10.1098/rsta.2018.0017.

Full text

Abstract:

Only a small fraction (approx. 1–20%) of magmas generated in the mantle erupt at the surface. While volcanic eruptions are typically considered as the main exhaust pipes for volatile elements to escape into the atmosphere, the contribution of magma reservoirs crystallizing in the crust is likely to dominate the volatile transfer from depth to the surface. Here, we use multiscale physical modelling to identify and quantify the main mechanisms of gas escape from crystallizing magma bodies. We show that most of the outgassing occurs at intermediate to high crystal fraction, when the system has re

APA, Harvard, Vancouver, ISO, and other styles

10

Nunes, Ana R., Ana C. Gonçalves, Edgar Pinto, et al. "Mineral Content and Volatile Profiling of Prunus avium L. (Sweet Cherry) By-Products from Fundão Region (Portugal)." Foods 11, no. 5 (2022): 751. http://dx.doi.org/10.3390/foods11050751.

Full text

Abstract:

Large amounts of Prunus avium L. by-products result from sweet cherry production and processing. This work aimed to evaluate the mineral content and volatile profiling of the cherry stems, leaves, and flowers of the Saco cultivar collected from the Fundão region (Portugal). A total of 18 minerals were determined by ICP-MS, namely 8 essential and 10 non-essential elements. Phosphorus (P) was the most abundant mineral, while lithium (Li) was detected in trace amounts. Three different preparations were used in this work to determine volatiles: hydroethanolic extracts, crude extracts, and aqueous

APA, Harvard, Vancouver, ISO, and other styles

11

Marty, Bernard. "Origins and Early Evolution of the Atmosphere and the Oceans." Geochemical Perspectives 9, no. 2 (2020): 135–313. http://dx.doi.org/10.7185/geochempersp.9.2.

Full text

Abstract:

My journey in science began with the study of volcanic gases, sparking an interest in the origin, and ultimate fate, of the volatile elements in the interior of our planet. How did these elements, so crucial to life and our surface environment, come to be sequestered within the deepest regions of the Earth, and what can they tell us about the processes occurring there? My approach has been to establish geochemical links between the noble gases, physical tracers par excellence, with major volatile elements of environmental importance, such as water, carbon and nitrogen, in mantle-derived rocks

APA, Harvard, Vancouver, ISO, and other styles

12

Ivić, Ivana, Mirela Kopjar, Jasmina Obhođaš, et al. "Concentration with Nanofiltration of Red Wine Cabernet Sauvignon Produced from Conventionally and Ecologically Grown Grapes: Effect on Volatile Compounds and Chemical Composition." Membranes 11, no. 5 (2021): 320. http://dx.doi.org/10.3390/membranes11050320.

Full text

Abstract:

Ecological viticulture represent an upward trend in many countries. Unlike conventional viticulture, it avoids the use of chemical fertilizers and other additives, minimizing the impact of chemicals on the environment and human health. The aim of this study was to investigate the influence of nanofiltration (NF) process on volatiles and chemical composition of conventional and ecological Cabernet Sauvignon red wine. The NF process was conducted on laboratory Alfa Laval LabUnit M20 (De Danske Sukkerfabrikker, Nakskov, Denmark) equipped with six NF M20 membranes in a plate module, at two tempera

APA, Harvard, Vancouver, ISO, and other styles

13

Mahan, Brandon, Frédéric Moynier, Julien Siebert, et al. "Volatile element evolution of chondrules through time." Proceedings of the National Academy of Sciences 115, no. 34 (2018): 8547–52. http://dx.doi.org/10.1073/pnas.1807263115.

Full text

Abstract:

Chondrites and their main components, chondrules, are our guides into the evolution of the Solar System. Investigating the history of chondrules, including their volatile element history and the prevailing conditions of their formation, has implications not only for the understanding of chondrule formation and evolution but for that of larger bodies such as the terrestrial planets. Here we have determined the bulk chemical composition—rare earth, refractory, main group, and volatile element contents—of a suite of chondrules previously dated using the Pb−Pb system. The volatile element contents

APA, Harvard, Vancouver, ISO, and other styles

14

Grewal, Damanveer S., Rajdeep Dasgupta, Chenguang Sun, Kyusei Tsuno, and Gelu Costin. "Delivery of carbon, nitrogen, and sulfur to the silicate Earth by a giant impact." Science Advances 5, no. 1 (2019): eaau3669. http://dx.doi.org/10.1126/sciadv.aau3669.

Full text

Abstract:

Earth’s status as the only life-sustaining planet is a result of the timing and delivery mechanism of carbon (C), nitrogen (N), sulfur (S), and hydrogen (H). On the basis of their isotopic signatures, terrestrial volatiles are thought to have derived from carbonaceous chondrites, while the isotopic compositions of nonvolatile major and trace elements suggest that enstatite chondrite–like materials are the primary building blocks of Earth. However, the C/N ratio of the bulk silicate Earth (BSE) is superchondritic, which rules out volatile delivery by a chondritic late veneer. In addition, if de

APA, Harvard, Vancouver, ISO, and other styles

15

Malyshev, A. I., and L. K. Malysheva. "Volatiles in endogenous ore formation." Trudy Instituta geologii i geohimii, no. 168 (2024): 85–101. https://doi.org/10.24930/0371-7291-2024-168-85-101.

Full text

Abstract:

The paper presents a molecular-chemical model of endogenous ore formation based on the properties of water, sulfur, and mercury. The critical temperature of sulfur is in the area of possible existence of magmatic melts, and the isolines of its saturated vapors pass in the temperature range of postmagmatic and hydrothermal processes. The evolution of endogenous gas mixtures determines the possibility of sudden condensation of sulfur. As a result, a high-temperature and highly active reagent is being formed on the way of endogenous gas flows. Sulfur condensate is able to capture metals from any

APA, Harvard, Vancouver, ISO, and other styles

16

Sørensen, Henning. "The agpaitic rocks - an overview." Mineralogical Magazine 61, no. 407 (1997): 485–98. http://dx.doi.org/10.1180/minmag.1997.061.407.02.

Full text

Abstract:

AbstractIt is now generally agreed that the term ‘agpaitic’ should be restricted to peralkaline nepheline syenites (and phonolites) containing minerals such as eudialyte and rinkite, that is complex silicates of Zr, Ti, the rare earth elements (REE), and F and other volatiles. There are, however, cases of transition into more common types of nepheline syenites containing zircon, titanite, ilmenite, etc.The agpaitic rocks are characterized by extremely high contents of rare elements such as Li, Be, Nb, Ta,REE, Zr, Th, etc. and of volatiles, first of all F and Cl. This gives rise to a wealth of

APA, Harvard, Vancouver, ISO, and other styles

17

Palme, H., G. Kurat, B. Spettel, and A. Burghele. "Chemical Composition of an Unusual Xenolith of the Allende Meteorite." Zeitschrift für Naturforschung A 44, no. 10 (1989): 1005–14. http://dx.doi.org/10.1515/zna-1989-1012.

Full text

Abstract:

Abstract The chemical composition of an unusual xenolith (All-AF) from the Allende meteorite was determined by neutron activation and x-ray fluorescence analyses. The xenolith is similar in bulk composition to Allende, but has large excesses in some moderately volatile trace elements, such as Na, K, Au, Sb etc. Some of these elements show considerable variations in other components of Allende, suggesting inhomogeneous distribution in Allende. However, elements of higher volatility, such as Zn and Se have concentrations typical of bulk Allende and other type 3 carbonaceous chondrites. Therefore

APA, Harvard, Vancouver, ISO, and other styles

18

Morton, Elin M., Harvey Pickard, Frank Wombacher, et al. "Volatile Element Depletion of Carbonaceous Chondrites—Insights from Mass-dependent Zinc, Cadmium, and Tellurium Isotope Variations." Astrophysical Journal 977, no. 1 (2024): 53. https://doi.org/10.3847/1538-4357/ad87ed.

Full text

Abstract:

Abstract The origin of volatile depletion in the solar system remains a topic of intense debate. To further inform our understanding of the mechanisms involved, this study characterized the mass-dependent Zn, Cd, and Te isotope compositions and concentrations of a comprehensive suite of carbonaceous chondrites (CCs). In accord with previous studies, Zn and Te display covariations between light isotope enrichments and elemental depletions. Observed here for the first time, Cd shows a similar trend. These correlations are consistent with the interpretation that the primary volatile element budge

APA, Harvard, Vancouver, ISO, and other styles

19

Gaggiotti, Sara, Flavio Della Pelle, Marcello Mascini, Angelo Cichelli, and Dario Compagnone. "Peptides, DNA and MIPs in Gas Sensing. From the Realization of the Sensors to Sample Analysis." Sensors 20, no. 16 (2020): 4433. http://dx.doi.org/10.3390/s20164433.

Full text

Abstract:

Detection and monitoring of volatiles is a challenging and fascinating issue in environmental analysis, agriculture and food quality, process control in industry, as well as in ‘point of care’ diagnostics. Gas chromatographic approaches remain the reference method for the analysis of volatile organic compounds (VOCs); however, gas sensors (GSs), with their advantages of low cost and no or very little sample preparation, have become a reality. Gas sensors can be used singularly or in array format (e.g., e-noses); coupling data output with multivariate statical treatment allows un-target analysi

APA, Harvard, Vancouver, ISO, and other styles

20

Chernysheva, E. A., and D. V. Eroshenko. "Regularities in variations of the pume volcanics composition in the Southern Atlantic and at the African plate." Океанология 59, no. 2 (2019): 271–81. http://dx.doi.org/10.31857/s0030-1574592271-281.

Full text

Abstract:

The action of the African Superplume provided input and accumulation of the volatile, alkaline and some others elements at the base of continental lithosphere. Transformation and interaction of these components with mantle peridotites took place under the African continental plate of the great thickness. Generation of low silica and rich in CO2 melts occurs at the great depth: this is the family of kimberlites, melilitites and carbonatites. At the shallower levels of the lithospheric plate the melts of basalts originated; they are more rich in SiO2 and poor in volatiles. The origin of deep gen

APA, Harvard, Vancouver, ISO, and other styles

21

Umar, Akrajas Ali, Muhamad Mat Salleh, and Muhammad Yahaya. "Optical Electronic Nose Based on Fe (III) Complex of Porphyrins Films for Detection of Volatile Compounds." Key Engineering Materials 495 (November 2011): 75–78. http://dx.doi.org/10.4028/www.scientific.net/kem.495.75.

Full text

Abstract:

Electronic nose is a device that attempts to mimic the living being smell system for detection of particular gases or volatile compounds. This paper reports the development of an optical electronic nose using Fe (III) based metalloporphyrins Langmuir-Blodgett thin films as sensing elements for discriminating four volatiles, 2-propanol, acetone, cyclohexane and ethanol. A multilayer feed forward neural network was developed to classify the input vectors from these two sensors. After the network being trained 100 times and introduced to blind samples, it was found that there are three fault deci

APA, Harvard, Vancouver, ISO, and other styles

22

Narendranath, S., Netra S. Pillai, Srikar P. Tadepalli, et al. "Sodium Distribution on the Moon." Astrophysical Journal Letters 937, no. 2 (2022): L23. http://dx.doi.org/10.3847/2041-8213/ac905a.

Full text

Abstract:

Abstract The Moon is significantly depleted in volatile elements when compared to Earth, an observation that has resulted in various formation scenarios leading to the loss of volatiles. Sodium is a moderately volatile element that is a lithophile, which can be utilized as a tracer of the volatile history in planetary bodies. It is also well observed in the exosphere of several bodies in our solar system and exoplanetary systems. But lunar surface sodium abundances have so far been measured only in samples brought back to Earth. We report on results from the first effort to provide a global-sc

APA, Harvard, Vancouver, ISO, and other styles

23

Sawoszczuk, Tomasz, Justyna Syguła-Cholewińska, and Julio M. del Hoyo-Meléndez. "The detection of active moulds on historical silk by the means of the headspace–solid phase micro-extraction–gas chromatography–mass spectrometry method." Textile Research Journal 88, no. 9 (2017): 1013–25. http://dx.doi.org/10.1177/0040517517693984.

Full text

Abstract:

The goal of this work was to analyze the profile of microbial volatile organic compounds (MVOCs) emitted by moulds growing on silk samples in search of particular volatiles mentioned in the literature as indicators of active mould growth. The selected moulds were inoculated on three types of media: (1) samples of pure silk placed on microbial media, (2) samples of historical silk placed on microbial media, and (3) agar containing amino acids that are elements of the structure of fibroin. All samples were prepared inside vials (closed system). In the first and second cases the media did not con

APA, Harvard, Vancouver, ISO, and other styles

24

Fenske, Myles P., Kristen D. Hewett Hazelton, Andrew K. Hempton, et al. "Circadian clock gene LATE ELONGATED HYPOCOTYL directly regulates the timing of floral scent emission in Petunia." Proceedings of the National Academy of Sciences 112, no. 31 (2015): 9775–80. http://dx.doi.org/10.1073/pnas.1422875112.

Full text

Abstract:

Flowers present a complex display of signals to attract pollinators, including the emission of floral volatiles. Volatile emission is highly regulated, and many species restrict emissions to specific times of the day. This rhythmic emission of scent is regulated by the circadian clock; however, the mechanisms have remained unknown. In Petunia hybrida, volatile emissions are dominated by products of the floral volatile benzenoid/phenylpropanoid (FVBP) metabolic pathway. Here we demonstrate that the circadian clock gene P. hybrida LATE ELONGATED HYPOCOTYL (LHY; PhLHY) regulates the daily express

APA, Harvard, Vancouver, ISO, and other styles

25

González Hernández, Jonay I., Garik Israelian, Nuno C. Santos, et al. "Volatiles and refratories in solar analogs: No terrestial planet connection." Proceedings of the International Astronomical Union 6, S276 (2010): 422–23. http://dx.doi.org/10.1017/s174392131102062x.

Full text

Abstract:

AbstractWe have analysed very high-quality HARPS and UVES spectra of 95 solar analogs, 24 hosting planets and 71 without detected planets, to search for any possible signature of terrestial planets in the chemical abundances of volatile and refractory elements with respect to the solar abundances.We demonstrate that stars with and without planets in this sample show similar mean abundance ratios, in particular, a sub-sample of 14 planet-host and 14 “single” solar analogs in the metallicity range 0.14 < [Fe/H] < 0.36. In addition, two of the planetary systems in this sub-sample, containin

APA, Harvard, Vancouver, ISO, and other styles

26

Martins, Rayssa, Sven Kuthning, Barry J. Coles, Katharina Kreissig, and Mark Rehkämper. "Nucleosynthetic isotope anomalies of zinc in meteorites constrain the origin of Earth’s volatiles." Science 379, no. 6630 (2023): 369–72. http://dx.doi.org/10.1126/science.abn1021.

Full text

Abstract:

Material inherited from different nucleosynthesis sources imparts distinct isotopic signatures to meteorites and terrestrial planets. These nucleosynthetic isotope anomalies have been used to constrain the origins of material that formed Earth. However, anomalies have only been identified for elements with high condensation temperatures, leaving the origin of Earth’s volatile elements unconstrained. We determined the isotope composition of the moderately volatile element zinc in 18 bulk meteorites and identified nucleosynthetic zinc isotope anomalies. Using a mass-balance model, we find that c

APA, Harvard, Vancouver, ISO, and other styles

27

Wojnowski, Wojciech, Mariusz Marć, Kaja Kalinowska, Paulina Kosmela, and Bożena Zabiegała. "Emission Profiles of Volatiles during 3D Printing with ABS, ASA, Nylon, and PETG Polymer Filaments." Molecules 27, no. 12 (2022): 3814. http://dx.doi.org/10.3390/molecules27123814.

Full text

Abstract:

In this short communication we characterize the emission of volatile organic compounds (VOCs) from fused filament fabrication (FFF) 3D printing using four polymer materials, namely polyethylene terephthalate glycol-modified (PETG), acrylonitrile styrene acrylate (ASA), Nylon, and acrylonitrile butadiene styrene (ABS). Detailed emission profiles are obtained during thermal degradation of the polymers as a function of temperature and also in real-time during 3D printing. Direct quantitative measurement was performed using proton transfer reaction time-of-flight mass spectrometry (PTR-ToF-MS). Qu

APA, Harvard, Vancouver, ISO, and other styles

28

Rankin, A. H., M. F. Miller, and J. S. Carter. "The release of trace elements and volatiles from crinoidal limestone during thermal decrepitation." Mineralogical Magazine 51, no. 362 (1987): 517–25. http://dx.doi.org/10.1180/minmag.1987.051.362.06.

Full text

Abstract:

AbstractA suite of coarsely crystalline samples of crinoidal limestone adjacent to a PbS-CaF2-CaCO3 vein in the North Pennine orefield (Greenhow Rake) was analysed by three independent methods [Inductively Coupled Plasma emission spectroscopy (ICP), Mass Spectrometry (MS) and Gas Chromatography (GC)], in order to determine the nature and origin of trace elements and volatiles released on heating and thermal decrepitation, to establish whether fluid inclusions from the host limestone differed in composition from those within the vein, and to assess the value of the results obtained for mineral

APA, Harvard, Vancouver, ISO, and other styles

29

Wang, Ming-Sheng, and Michael E. Lipschutz. "Thermal Metamorphism of Primitive Meteorites—XII. The Enstatite Chondrites Revisited." Environmental Chemistry 2, no. 3 (2005): 215. http://dx.doi.org/10.1071/en04075.

Full text

Abstract:

Environmental Context.The first Solar System material condensed 4.567 billion years ago, rapidly forming planetesimals—solid bodies that might combine to form planets (accretion) or survive as asteroidal meteorites. Earth’s main accretion ended within the next 30 million years, but subsequent high temperatures essentially erased evidence of this history. However, heating in these early episodes produced effects uniquely recorded by 14 volatile trace elements. The volatile element composition of chondritic meteorites, whose parent material formed closest to Earth, may thus provide important inf

APA, Harvard, Vancouver, ISO, and other styles

30

Levashova, Ekaterina V., Sergey G. Skublov, Dmitry A. Zamyatin, Qiuli Li, Dmitry S. Levashov, and Xianhua Li. "Tetrad Effect of Rare Earth Element Fractionation in Zircon from the Pegmatite of the Adui Massif, Middle Urals." Geosciences 14, no. 1 (2023): 7. http://dx.doi.org/10.3390/geosciences14010007.

Full text

Abstract:

The zircon from the pegmatite of the Adui granitic massif displays the unique the rare earth element (REE) distribution spectrum with the tetrad effect in REE fractionation. The tetrad effect often occurs in granitoid rocks, but it is rarely encountered in minerals, e.g., zircon. Fluid saturated with volatiles, water and trace elements is a factor responsible for the tetrad effect in the zircon. The detailed isotopic-geochemical study of the zircon has revealed several zones differing in internal structure (in the back-scattered electron (BSE) image), composition and REE distribution. The zone

APA, Harvard, Vancouver, ISO, and other styles

31

Ali, Muhammad Yasir, Tayyaba Naseem, Jarmo K. Holopainen, Tongxian Liu, Jinping Zhang, and Feng Zhang. "Tritrophic Interactions among Arthropod Natural Enemies, Herbivores and Plants Considering Volatile Blends at Different Scale Levels." Cells 12, no. 2 (2023): 251. http://dx.doi.org/10.3390/cells12020251.

Full text

Abstract:

Herbivore-induced plant volatiles (HIPVs) are released by plants upon damaged or disturbance by phytophagous insects. Plants emit HIPV signals not merely in reaction to tissue damage, but also in response to herbivore salivary secretions, oviposition, and excrement. Although certain volatile chemicals are retained in plant tissues and released rapidly upon damaged, others are synthesized de novo in response to herbivore feeding and emitted not only from damaged tissue but also from nearby by undamaged leaves. HIPVs can be used by predators and parasitoids to locate herbivores at different spat

APA, Harvard, Vancouver, ISO, and other styles

32

Pelletier, Stefan, Björn Benneke, Yayaati Chachan, et al. "CRIRES⁺ and ESPRESSO Reveal an Atmosphere Enriched in Volatiles Relative to Refractories on the Ultrahot Jupiter WASP-121b." Astronomical Journal 169, no. 1 (2024): 10. https://doi.org/10.3847/1538-3881/ad8b28.

Full text

Abstract:

Abstract One of the outstanding goals of the planetary science community is to measure the present-day atmospheric composition of planets and link this back to formation. As giant planets are formed by accreting gas, ices, and rocks, constraining the relative amounts of these components is critical to understand their formation and evolution. For most known planets, including the solar system giants, this is difficult as they reside in a temperature regime where only volatile elements (e.g., C, O) can be measured, while refractories (e.g., Fe, Ni) are condensed to deep layers of the atmosphere

APA, Harvard, Vancouver, ISO, and other styles

33

Sossi, Paolo A., Frédéric Moynier, and Kirsten van Zuilen. "Volatile loss following cooling and accretion of the Moon revealed by chromium isotopes." Proceedings of the National Academy of Sciences 115, no. 43 (2018): 10920–25. http://dx.doi.org/10.1073/pnas.1809060115.

Full text

Abstract:

Terrestrial and lunar rocks share chemical and isotopic similarities in refractory elements, suggestive of a common precursor. By contrast, the marked depletion of volatile elements in lunar rocks together with their enrichment in heavy isotopes compared with Earth’s mantle suggests that the Moon underwent evaporative loss of volatiles. However, whether equilibrium prevailed during evaporation and, if so, at what conditions (temperature, pressure, and oxygen fugacity) remain unconstrained. Chromium may shed light on this question, as it has several thermodynamically stable, oxidized gas specie

APA, Harvard, Vancouver, ISO, and other styles

34

Zhou, Wen-Han, Shang-Fei Liu, and Douglas N. C. Lin. "White dwarf magnetospheres: Shielding volatile content of icy objects and implications for volatile pollution scarcity." Astronomy & Astrophysics 687 (July 2024): A107. http://dx.doi.org/10.1051/0004-6361/202449271.

Full text

Abstract:

Context. About 25–50% of white dwarfs are found to be contaminated by heavy elements, which are believed to originate from external sources such as planetary materials. Elemental abundances suggest that most of the pollutants are rocky objects and only a small fraction of white dwarfs bear traces of volatile accretion. Aims. In order to account for the scarcity of volatile pollution, we investigate the role of the white dwarfs’ magnetospheres in shielding the volatile content of icy objects. Methods. We estimated the volatile sublimation of inward drifting exocomets. We assume the orbits of th

APA, Harvard, Vancouver, ISO, and other styles

35

Dippong, Thomas, Oana Cadar, Melinda Haydee Kovacs, Monica Dan, and Lacrimioara Senila. "Chemical Analysis of Various Tea Samples Concerning Volatile Compounds, Fatty Acids, Minerals and Assessment of Their Thermal Behavior." Foods 12, no. 16 (2023): 3063. http://dx.doi.org/10.3390/foods12163063.

Full text

Abstract:

Tea is the most consumed drink worldwide due to its pleasant taste and various beneficial effects on human health. This paper assesses the physicochemical analysis of different varieties of tea (leaves, flowers, and instant) after prior drying and fine grinding. The thermal decomposition behavior of the tea components shows that the tea has three stages of decomposition, depending on temperature. The first stage was attributed to the volatilization of water, while the second stage involved the degradation of volatiles, polyphenols, and fatty acids. The degradation of cellulose, hemicellulose,

APA, Harvard, Vancouver, ISO, and other styles

36

Simons, Kyla, Jacqueline Dixon, Jean-Guy Schilling, Richard Kingsley, and Robert Poreda. "Volatiles in basaltic glasses from the Easter-Salas y Gomez Seamount Chain and Easter Microplate: Implications for geochemical cycling of volatile elements." Geochemistry, Geophysics, Geosystems 3, no. 7 (2002): 1–29. http://dx.doi.org/10.1029/2001gc000173.

Full text

APA, Harvard, Vancouver, ISO, and other styles

37

Vogt, David S., Susanne Schröder, Lutz Richter, et al. "VOILA on the LUVMI-X Rover: Laser-Induced Breakdown Spectroscopy for the Detection of Volatiles at the Lunar South Pole." Sensors 22, no. 23 (2022): 9518. http://dx.doi.org/10.3390/s22239518.

Full text

Abstract:

The project Lunar Volatiles Mobile Instrumentation—Extended (LUVMI-X) developed an initial system design as well as payload and mobility breadboards for a small, lightweight rover dedicated for in situ exploration of the lunar south pole. One of the proposed payloads is the Volatiles Identification by Laser Analysis instrument (VOILA), which uses laser-induced breakdown spectroscopy (LIBS) to analyze the elemental composition of the lunar surface with an emphasis on sampling regolith and the detection of hydrogen for the inference of the presence of water. It is designed to analyze targets in

APA, Harvard, Vancouver, ISO, and other styles

38

Yang, Jing, Yaochen Li, Yuxin He, et al. "Wild vs. Cultivated Zingiber striolatum Diels: Nutritional and Biological Activity Differences." Plants 12, no. 11 (2023): 2180. http://dx.doi.org/10.3390/plants12112180.

Full text

Abstract:

Compositional, functional, and nutritional properties are important for the use-value assessments of wild and cultivated edible plants. The aim of this study was to compare the nutritional composition, bioactive compounds, volatile compounds, and potential biological activities of cultivated and wild Zingiber striolatum. Various substances, such as soluble sugars, mineral elements, vitamins, total phenolics, total flavonoids, and volatiles, were measured and analyzed using UV spectrophotometry, ICP-OES, HPLC, and GC-MS methods. The antioxidant capacity of a methanol extract of Z. striolatum, a

APA, Harvard, Vancouver, ISO, and other styles

39

Treiman, A. H., J. W. Boyce, J. Gross, Y. Guan, J. M. Eiler, and E. M. Stolper. "Phosphate-halogen metasomatism of lunar granulite 79215: Impact-induced fractionation of volatiles and incompatible elements." American Mineralogist 99, no. 10 (2014): 1860–70. http://dx.doi.org/10.2138/am-2014-4822.

Full text

APA, Harvard, Vancouver, ISO, and other styles

40

Galimov, E. M. "Features of the geochemistry of the Moon and the Earth, determined by the mechanism of formation of the Earth – Moon system (report at the 81st international meteorite conference, Moscow, july 2018)." Геохимия 64, no. 8 (2019): 762–76. http://dx.doi.org/10.31857/s0016-7525648762-776.

Full text

Abstract:

This article discusses some features of geochemistry of the Earth and the Moon, which manifests the specificity of the mechanism of their formation by fragmentation of protoplanetary gas-dust condensation (Galimov & Krivtsov, 2012). The principal difference between this model and other hypotheses of the Earth-Moon system formation, including the megaimpact hypothesis, is that it assumes the existence of a long stage of the dispersed state of matter, starting with the formation of protoplanetary gas-dust condensation, its compression and fragmentation and ending with the final accretion to

APA, Harvard, Vancouver, ISO, and other styles

41

Şenol Yazkan, Sevde Nur, and Müge Hendek Ertop. "Optimization of Bioactive Compound Extraction from Propolis by Reflux, Maceration and Ultrasound-assisted Methods and Characterization of the Extracts." Tarım Bilimleri Dergisi 31, no. 2 (2025): 359–72. https://doi.org/10.15832/ankutbd.1540221.

Full text

Abstract:

The region, botanical origin, and bee species influence the raw propolis content and its bioactive properties. Additionally, the extraction methods, solvents, and various process parameters significantly affect the bioactive properties of propolis extract, which is consumed as a food supplement or pharmaceutical product. In this study, propolis with a chestnut botanical origin, obtained from the Black Sea region in Turkey, was used as the raw material. The process parameters of three basic extraction methods— maceration (M), reflux (R), and ultrasound-assisted (UA)—were optimised using respons

APA, Harvard, Vancouver, ISO, and other styles

42

Losekamm, Martin J., Janos Biswas, Thibaud Chupin, et al. "Assessing the Distribution of Water Ice and Other Volatiles at the Lunar South Pole with LUVMI-X: A Mission Concept." Planetary Science Journal 3, no. 10 (2022): 229. http://dx.doi.org/10.3847/psj/ac8cfd.

Full text

Abstract:

Abstract The search for exploitable deposits of water and other volatiles at the Moon’s poles has intensified considerably in recent years, due to the renewed strong interest in lunar exploration. With the return of humans to the lunar surface on the horizon, the use of locally available resources to support long-term and sustainable exploration programs, encompassing both robotic and crewed elements, has moved into focus of public and private actors alike. Our current knowledge about the distribution and concentration of water and other volatiles in the lunar rocks and regolith is, however, t

APA, Harvard, Vancouver, ISO, and other styles

43

Iwanek (nee Wilczkowska), Ewa M., Urszula Nietrzeba, Marta Pietras, et al. "Possible Options for Utilization of EU Biomass Waste: Pyrolysis Char, Calorific Value and Ash Content." Materials 17, no. 1 (2023): 226. http://dx.doi.org/10.3390/ma17010226.

Full text

Abstract:

The application of biomass as a co-feed in coal power plants and in standalone biomass power plants, as well as in char production for soil remediation, is a currently important issue. This paper reports on the investigation of biochar formation from agricultural waste crops that are used for soil upgrading, but which do not meet the standards of EU crops, as well as largescale food processing waste. These were compared to test results from basket willow, which is commonly used for energy generation. Food industry waste is often produced in cities on a large scale and is generally easier to pr

APA, Harvard, Vancouver, ISO, and other styles

44

Matthews, Jennifer L., Maiken Ueland, Natasha Bartels, et al. "Multi-Chemical Omics Analysis of the Symbiodiniaceae Durusdinium trenchii under Heat Stress." Microorganisms 12, no. 2 (2024): 317. http://dx.doi.org/10.3390/microorganisms12020317.

Full text

Abstract:

The urgency of responding to climate change for corals necessitates the exploration of innovative methods to swiftly enhance our understanding of crucial processes. In this study, we employ an integrated chemical omics approach, combining elementomics, metabolomics, and volatilomics methodologies to unravel the biochemical pathways associated with the thermal response of the coral symbiont, Symbiodiniaceae Durusdinium trenchii. We outline the complimentary sampling approaches and discuss the standardised data corrections used to allow data integration and comparability. Our findings highlight

APA, Harvard, Vancouver, ISO, and other styles

45

Zedler, Marie, Sze Wai Tse, Antonio Ruiz-Gonzalez, and Jim Haseloff. "Paper-Based Multiplex Sensors for the Optical Detection of Plant Stress." Micromachines 14, no. 2 (2023): 314. http://dx.doi.org/10.3390/mi14020314.

Full text

Abstract:

The rising population and the ongoing climate crisis call for improved means to monitor and optimise agriculture. A promising approach to tackle current challenges in food production is the early diagnosis of plant diseases through non-invasive methods, such as the detection of volatiles. However, current devices for detection of multiple volatiles are based on electronic noses, which are expensive, require complex circuit assembly, may involve metal oxides with heating elements, and cannot easily be adapted for some applications that require miniaturisation or limit front-end use of electroni

APA, Harvard, Vancouver, ISO, and other styles

46

Bussweiler. "Polymineralic Inclusions in Megacrysts as Proxies for Kimberlite Melt Evolution—A Review." Minerals 9, no. 9 (2019): 530. http://dx.doi.org/10.3390/min9090530.

Full text

Abstract:

Polymineralic inclusions in megacrysts have been reported to occur in kimberlites worldwide. The inclusions are likely the products of early kimberlite melt(s) which invaded the pre‐existing megacryst minerals at mantle depths (i.e., at pressures ranging from 4 to 6 GPa) and crystallized or quenched upon emplacement of the host kimberlite. The abundance of carbonate minerals (e.g., calcite, dolomite) and hydrous silicate minerals (e.g., phlogopite, serpentine, chlorite) within polymineralic inclusions suggests that the trapped melt was more volatile‐rich than the host kimberlite now emplaced i

APA, Harvard, Vancouver, ISO, and other styles

47

Wu, Li, Zhuang, et al. "Mineralogical and Environmental Geochemistry of Coal Combustion Products from Shenhuo and Yihua Power Plants in Xinjiang Autonomous Region, Northwest China." Minerals 9, no. 8 (2019): 496. http://dx.doi.org/10.3390/min9080496.

Full text

Abstract:

The mineralogical and geochemical characteristics of feed coals and coal combustion products (CCPs) from the Shenhuo and Yihua Power Plants in Xinjiang Autonomous Region, were studied by means of proximate analysis, Power X-ray diffraction (XRD), scanning electron microscopy with Energy Dispersive X-ray analyzer (SEM-EDX), inductively coupled plasma atomic emission spectrometry (ICP-MS) and inductively coupled plasma mass spectrometry (ICP-AES). The environmental geochemistry of CCPs was evaluated by Al-normalized enrichment factor as well as European Standard EN-12457 leaching test. Two feed

APA, Harvard, Vancouver, ISO, and other styles

48

Aikawa, Yuri, and Kenji Furuya. "Gas-dust chemistry of volatiles in the star and planetary system formation." Proceedings of the International Astronomical Union 15, S350 (2019): 161–68. http://dx.doi.org/10.1017/s1743921319008263.

Full text

Abstract:

AbstractThe focus of this work is on two topics: (i) formation of complex organic molecules (COMs) and (ii) isotope fractionation. Various COMs, which are C, H-containing molecules consisting of 6 atoms and more, have been detected in the central warm region of protostellar cores. Most of this review is about gas-grain chemical models, which have been constructed to evaluate the mechanisms and efficiency of the COM formation. The relevant physical and chemical processes are investigated in laboratory experiments, as reported in other articles in this volume.The isotope fractionation of volatil

APA, Harvard, Vancouver, ISO, and other styles

49

Kröncke, Nina, Sandra Grebenteuch, Claudia Keil, et al. "Effect of Different Drying Methods on Nutrient Quality of the Yellow Mealworm (Tenebrio molitor L.)." Insects 10, no. 4 (2019): 84. http://dx.doi.org/10.3390/insects10040084.

Full text

Abstract:

Yellow mealworm (Tenebrio molitor L.) represents a sustainable source of proteins and fatty acids for feed and food. Industrial production of mealworms necessitates optimized processing techniques, where drying as the first postharvest procedure is of utmost importance for the quality of the final product. This study examines the nutritional quality of mealworm larvae processed by rack oven drying, vacuum drying or freeze drying, respectively. Proximate composition and fatty acid profile were comparable between the dried larvae. In contrast, larvae color impressions and volatile compound profi

APA, Harvard, Vancouver, ISO, and other styles

50

Righter, Kevin. "Modeling siderophile elements during core formation and accretion, and the role of the deep mantle and volatiles." American Mineralogist 100, no. 5-6 (2015): 1098–109. http://dx.doi.org/10.2138/am-2015-5052.

Full text

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!