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Journal Article
Journal: Geosphere
Published: 04 November 2022
Geosphere (2022) 18 (6): 1926–1957.
.... Pyroclastic deposits occur in four main facies: (1) lapilli- and blockdominated beds, (2) thinly bedded lapilli tuff, (3) laminated and cross-laminated ash, and (4) massive lapilli ash/tuff. Lapilli- and block-dominated beds are found mostly within several hundred meters of the crater and transition outward...
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Journal Article
Journal: GSA Bulletin
Published: 21 October 2022
GSA Bulletin (2022)
... SETTING Our study was conducted at two areas near legacy UNEs: one near Barnwell and one near Disko Elm (Fig. 1). Both sites lie within the Miocene Southwest Nevada Volcanic Field, which includes silicic ash-flow tuffs, bedded tuffs, and rhyolitic lava from the Calico Hills Formation (from the Silent...
Journal Article
Journal: GSA Bulletin
Published: 02 February 2022
GSA Bulletin (2022) 134 (9-10): 2267–2279.
... of persistent wetness in the Mono Basin, which is a hydrologically closed depression that sits at the west-central edge of the Basin and Range. The most recent emergence of persistent wetness in the Mono Basin is stratigraphically correlated with the depositional age of Ash 19—a rhyolitic ash bed...
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Journal Article
Published: 22 September 2021
Environmental & Engineering Geoscience (2022) 28 (2): 215–231.
...James H. May; Wayne C. Isphording; David Patrick; David R. Williamson; James E. Lyles, Sr. ABSTRACT Calcium bentonite mined in Smith County, Mississippi, has been reported in numerous publications to be derived from the weathering of volcanic ash. These interpretations were based on the bentonite...
FIGURES
Series: Geological Society, London, Memoirs
Published: 27 May 2021
DOI: 10.1144/M55-2018-49
EISBN: 9781786209863
... Program 2010 ), at Mount Sourabaya in 2016 ( Global Volcanism Program 2017 ) and at Saunders Island in 2018 (all in the South Sandwich Islands), which produced ash plumes observed by satellites ( Patrick and Smellie 2013 ; Global Volcanism Program 2018 ). Nevertheless, several volcanoes...
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Journal Article
Published: 13 March 2021
Quarterly Journal of Engineering Geology and Hydrogeology (2021) 54 (4): qjegh2020-142.
...E. Ramanjaneya Raju; B. R. Phanikumar; M. Heeralal Abstract This note presents the effect of lime, cement, fly ash and ground granulated blast furnace slag (GGBS) on free swell index (FSI), liquid limit (LL), plasticity index (PI), compaction characteristics, hydraulic conductivity ( k...
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Journal Article
Published: 01 February 2021
Italian Journal of Geosciences (2021) 140 (1): 108–120.
...Redi Muci; Klodian Skrame; Oltion Fociro; Marco Mancini; Iolanda Gaudiosi; Maurizio Simionato ABSTRACT The study analyses the effects of two chemical agents – cement and fly ash – in changing the swelling potential and the strength parameters of an expansive clay soil collected from Currila area...
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Journal Article
Journal: Geology
Published: 19 August 2020
Geology (2020) 48 (12): 1205–1209.
... scale necessary for it to accrue. Breadcrust bubbles have additional potential to better describe and quantify the nature of fragmentation and transport conditions in high-silica rhyolite eruptions. Our analyses focus on bulk Rattlesnake Tuff samples selected from ash used in rheological experiments...
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Journal Article
Published: 21 April 2020
Geochemistry: Exploration, Environment, Analysis (2020) 20 (3): 381–398.
...Afieh Tatar; Masood Alipour-Asll Abstract The Tazareh mine in the eastern Alborz coalfield is one of the most important coal-producing areas in Iran and contains medium volatile (19.1–31.5%), low sulfur (0.015–0.491%) and variable ash yield (3–31.5%) bituminous coal. In this research, a total of 21...
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Journal Article
Journal: Clay Minerals
Published: 03 February 2020
Clay Minerals (2020) 55 (1): 40–47.
...Natalia Czuma; Rafał Panek; Paweł Baran; Katarzyna Zarębska Abstract Fly ash zeolites are economically and ecologically attractive alternatives to synthetic and natural zeolites. Their use as sulfur dioxide sorbents is one of the possible applications of these materials. During the process of fly...
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Journal Article
Published: 01 March 2019
European Journal of Mineralogy (2019) 31 (2): 301–312.
... into brick raw mixtures. In this paper, the effects of three additives on the clay mixture and the fired bricks have been studied. Clayey soil from Jun (Granada, Spain) was combined with fly-ash, household glass and spent beer grain in manually made bricks fired at 800 °C, 950 °C and 1100 °C. Differences...
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Journal Article
Published: 01 December 2016
Clays and Clay Minerals (2016) 64 (6): 695–705.
... separation, and low cost, a novel dye adsorbent was prepared by activating fly ash with NaOH. The adsorbent morphology, structure, and specific surface area were characterized using scanning electron microscopy, X-ray powder diffraction, and surface area measurements using N 2 adsorption-desorption...
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Journal Article
Published: 01 October 2016
Clays and Clay Minerals (2016) 64 (5): 552–559.
...Pingqiang Gao; Yan Zhang; Lin Zhao Abstract Development of an effective sorbent for diesel fuel spill remediation remains an important challenge in the field of synthesis due to the potential capacity of sorbents to efficiently purify contaminated sites. Fly ash, a coal combustion by-product...
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Journal Article
Published: 01 July 2016
American Mineralogist (2016) 101 (7): 1584–1595.
...Laurence A.J. Garvie Abstract This study describes the wood chemistry and ash mineralogy of the desert tree Parkinsonia microphylla (Torr.) and follows the mineralogical effects of natural and laboratory aging and weathering. Ash was collected in the field (field ash) following a wildfire east...
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Series: Geological Society, London, Special Publications
Published: 01 January 2016
DOI: 10.1144/SP416.14
EISBN: 9781862397187
... typically with spherical shape (spherules) were also distinguished: aluminosilicate (two subtypes), carbonaceous, and iron-rich fly-ash. The appearance of gypsum crystallites around the particulate matter in association with all spherule types suggests that the particulate matter greatly contributes...
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Journal Article
Published: 01 December 2015
Journal of Environmental and Engineering Geophysics (2015) 20 (4): 319–335.
... manage environmental impacts associated with runoff holding ponds. Email: bryan.woodbury@ars.usda.gov ; roger.eigenberg@ars.usda.gov ; tfranz2@unl.edu Copyright © 2015, EEGS 2015 Runoff holding ponds are used to store a variety of liquids including drilling waste, coal ash slurry...
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Journal Article
Published: 08 May 2015
Geochemistry: Exploration, Environment, Analysis (2015) 15 (4): 293–318.
...R. Zinkutė; I. Baužienė; K. Dilys; J. Mažeika; J. Taminskas; R. Taraškevičius Abstract Two Lithuanian c . 50-cm long peat cores from ombrotrophic bogs were analysed, namely, Rėkyva near Šiauliai and Žudiškės near Vilnius. Ash content, bulk density, chemical element concentrations determined...
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Journal Article
Published: 01 April 2015
Vadose Zone Journal (2015) 14 (4): vzj2014.08.0103.
...Ricardo Medina; G.B. Menezes; C.S. Khachikian; A. Ellis Abstract This study investigated the direct effect of fly ash used as a soil amendment on anion exclusion in NO 3 − transport in a variably saturated soil. A sandy clay soil was amended with Class F fly ash (FA) at four levels: 0, 2, 10...
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Journal Article
Journal: Clay Minerals
Published: 01 March 2015
Clay Minerals (2015) 50 (1): 31–40.
...) derived from coal fly ash was carried out. This material was characterized by X-ray diffraction, scanning electron microscopy and energy dispersive spectroscopy, X-ray fluorescence and nitrogen adsorption/desorption before being evaluated for mercury removal from exhaust gas. After preliminary mercury...
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Journal Article
Published: 01 November 2014
Environmental & Engineering Geoscience (2014) 20 (4): 371–391.
... ratio and the shear strength was evaluated. Improvements to the monitoring program are also proposed. 1 Corresponding author email address: xubt@nju.edu.cn . Tel.: 86-25-83685746. © 2014 Association of Environmental & Engineering Geologists 2014 Fly Ash Tailings Dam Seismic...
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