Academic literature on the topic 'Weathering'

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

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Weathering.'

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.

Journal articles on the topic "Weathering"

1

Frings, Patrick J., and Heather L. Buss. "The Central Role of Weathering in the Geosciences." Elements 15, no. 4 (August 1, 2019): 229–34. http://dx.doi.org/10.2138/gselements.15.4.229.

Full text
Abstract:
Weathering is the chemical and physical alteration of rock at the surface of the Earth, but its importance is felt well beyond the rock itself. The repercussions of weathering echo throughout the Earth sciences, from ecology to climatology, from geomorphology to geochemistry. This article outlines how weathering interacts with various geoscience disciplines across a huge range of scales, both spatial and temporal. It traces the evolution of scientific thinking about weathering and man's impact on weathering itself—for better and for worse. Future computational, conceptual and methodological advances are set to cement weathering's status as a central process in the Earth sciences.
APA, Harvard, Vancouver, ISO, and other styles
2

Price, D. G. "Weathering and weathering processes." Quarterly Journal of Engineering Geology and Hydrogeology 28, no. 3 (August 1995): 243–52. http://dx.doi.org/10.1144/gsl.qjegh.1995.028.p3.03.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Whalley, W. B., and J. P. McGreevy. "Weathering." Progress in Physical Geography: Earth and Environment 9, no. 4 (December 1985): 559–81. http://dx.doi.org/10.1177/030913338500900404.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Whalley, W. B., and J. P. McGreevy. "Weathering." Progress in Physical Geography: Earth and Environment 11, no. 3 (September 1987): 357–69. http://dx.doi.org/10.1177/030913338701100303.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

SmithBattle, Lee. "Weathering." MCN: The American Journal of Maternal/Child Nursing 48, no. 6 (November 2023): 293–94. http://dx.doi.org/10.1097/nmc.0000000000000949.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Benitez, Christian Jil Repalda. "Weathering." Southeast Asian Review of English 61, no. 1 (July 1, 2024): 252–53. http://dx.doi.org/10.22452/sare.vol61no1.14.

Full text
Abstract:
Short lyric poem meditating on "love... [and] uselessness of / its implications," considered from the scale of geological time, beside, for instance, a "boulder being itself on the face / of weathering."
APA, Harvard, Vancouver, ISO, and other styles
7

GARDNER, L. R. "Weathering Processes: The Chemistry of Weathering." Science 231, no. 4738 (February 7, 1986): 627–28. http://dx.doi.org/10.1126/science.231.4738.627-a.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Chen, Jin, Fangbing Li, Xiangwei Zhao, Yang Wang, Limin Zhang, Ling Feng, Xiong Liu, Lingbin Yan, and Lifei Yu. "The weathering process of carbonatite: weathering time." PeerJ 11 (July 31, 2023): e15793. http://dx.doi.org/10.7717/peerj.15793.

Full text
Abstract:
Soil formation by rock weathering is driven by a combination of parent material, climate, organisms, topography, and time. Among these soil-forming factors, time plays a pivotal role in the weathering of carbonatite but it is a challenging factor to study quantitatively. A method for determining the weathering duration of carbonatite based on its weathering characteristics over a century-scale time period has not been clearly established. In this study, we selected abandoned carbonatite tombstones commonly found in the karst region of southwest China for investigation, using the date when the tombstones were erected as the onset of weathering. Chemical weathering indices were used to evaluate the weathering degree of different oxide contents produced by the carbonatite weathering process. In order to explore the weathering characteristics over time, the relationship between weathering duration and weathering degree was established. The results showed the following: (1) magnesium (Mg), aluminum (Al), silicon (Si), iron (Fe), titanium (Ti) are gradually enriched in the carbonatite regolith, and calcium (Ca) is gradually reduced. (2) The chemical indices of alteration (CIA), leaching coefficient (Lc), alumina-to-calcium ratio (AC) and mobiles index (Imob) can be successfully used for evaluation of the weathering degree of the carbonatite in different weathering time periods. (3) During the weathering of carbonatite, the weathering rate is a logarithmic function of time. Our research shows that over a period of more than 100 years of weathering, the carbonatite weathering process is characterized by fast weathering rates and low weathering degree in the early stages, but slow weathering rates in the later stages.
APA, Harvard, Vancouver, ISO, and other styles
9

Al Othman, Othman, Shan Faiz, and Muhammad Abduh Tuasikal. "Study of Natural and Accelerated Weathering on Mechanical Properties of Antioxidants Modified Low Density Polyethylene Films for Greenhouse." International Journal of Polymer Science 2014 (2014): 1–5. http://dx.doi.org/10.1155/2014/543930.

Full text
Abstract:
Natural and accelerated weatherings were studied to inspect the effect of antioxidants to protect low-density polyethylene (LDPE) films for commercial application as greenhouse covering materials in Saudi Arabia. In this investigation, six different formulations of LDPE film with incorporation of antioxidants were prepared and compared with neat LDPE. The samples were extruded and blown into a film using twin-screw extruder and film blowing machine. The LDPE films were exposed for outdoor weathering in Riyadh during the period of 90 days (mid of June to mid of September) while the accelerated tests were performed by Weather-Ometer. The film having 0.2 wt% Alkanox-240 (AN-0.2) stabilizers showed the highest tensile strength among all samples during natural and 100-hour accelerated weathering (10.9 MPa and 21.8 MPa, resp.). The best elongation at break was witnessed in 0.2% Good-rite antioxidants which were 64% in natural weathering; however, 0.5% Good-rite antioxidants showed 232% in accelerated weathering. The film having 0.5 wt% Good-rite 3114 (GR-0.5) antioxidant could withstand 70 days during natural exposure before the tensile strength values were reduced to 2/3rd of the initial. The present study suggested that the addition of antioxidants Good-rite, Anox, and Alkanox can improve the mechanical strength, film’s life, effectiveness, and stability and they are suitable to be incorporated in LDPE for commercial greenhouse films.
APA, Harvard, Vancouver, ISO, and other styles
10

Winkler, Erhard M. "Weathering and weathering rates of natural stone." Environmental Geology and Water Sciences 9, no. 2 (June 1987): 85–92. http://dx.doi.org/10.1007/bf02449939.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Dissertations / Theses on the topic "Weathering"

1

Reed, Ryan R. "Factors Influencing Biotite Weathering." Thesis, Virginia Tech, 2000. http://hdl.handle.net/10919/36282.

Full text
Abstract:
Weathering of biotite supplies nutrients such as K+ and weathers into vermiculite/montmorillonite or kaolinite, which have varying influences on soil properties and characteristics. This study was conducted to determine if the weathering mechanisms of biotite are controlled by temperature, or if other factors, such as vegetation or leaching intensity dominantly influence the weathering process. A column study investigation was conducted to assess the influence of different acids, simulated rainfall rates, surface horizons, and temperature on the weathering and cation release of biotite. A field investigation was also conducted on the clay mineral fraction of soils in Grayson County, VA formed above biotite granite. Selected acid leachates did show a greater Al+3, Fe+2, and Si+4 release with organic acids (ascorbic, citric, and fulvic) than that with hydrochloric acid treatment at high leachate rates. Loss of K+ is greater with ascorbic acid than all other acids at high leachate rates. Leachate rate interaction with low temperature was an influencing factor in cation release. Field investigations revealed a greater weathering intensity at high elevations evidenced by; (i) higher clay content, (ii) a dominance of 2:1 minerals, (iii) greater surface area in the upper horizons, (iv) minerals indicative of later stages in the biotite weathering mechanism, and (v) precipitation of halloysite in the C horizon at the high elevation site where temperature is lower and a suspected higher leaching intensity occur.
Master of Science
APA, Harvard, Vancouver, ISO, and other styles
2

Morkel, Jacqueline. "Kimberlite weathering mineralogy and mechanism /." Pretoria : [s.n.], 2006. http://upetd.up.ac.za/thesis/available/etd-07212007-104241.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Simpson, Annika Emilia. "Microbial weathering of volcanic rocks." Thesis, Open University, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.607463.

Full text
Abstract:
The aim of this thesis was to further the knowledge on microbial weathering, by looking at the effect of model organisms (AcidithiobacilIus ferrooxidans and Geobacter metallireducens) to natural microbial communities (from basaltic glass). It was found that the medium water-rock ratio (50: I) provided the optimum conditions for A. ferrooxidans growth, whilst the low water-rock ratio (1: I) had a lower release of iron because of pH. The pH affected the release of iron and REEs, with less released the higher the pH. In addition, it was found that, though localised areas of hematite were found on the treated rocks, there were also oxidised layers that did not correspond to specific mineralogy. The lack of specific mineral signatures on the rock surface, but the apparent oxidation of the surface, suggested that the surface had been passivated with Fe3+ binding to the mineral surface. In contrast, G. metallireducens did not affect the production of Fe2+ from basalt glass when compared to controls. However, when low water-rock ratios and hematite were tested, a difference was observed between abiotic and biotic flasks. It was suggested the low water ~rock ratio possibly allowed G. metallireducens to obtain the iron more easily by affecting the pH of the solution which in turn affected the stability of the bound iron. In terms of studying microbial communities on rocks, it was found that community structure in Icelandic basaltic glass changed over time, becoming more diverse, with a switch from r- to K-selected microorganisms over the course of the year, similarly to results obtained in the field. DGGE results showed each flask had a distinctive population - with no correlation between ratios, and replicates different in composition to each other. It is suggested that, though community does change over time (as shown by the clone libraries), the ratios do not have an effect and each flask is developing with its own 'microbial island'. However, the results of the chemistry of the flask solutions indicated that the biological experiments showed differences in pH and elemental release between ratios. Elemental release rates were faster in the biological experiments. 'the natural communities affected mineral dissolution, possibly through -- the release of organic acids, which would also account for the drop in pHs observed in the biological experiments. It was noted that there were differences in dissolution rates between the results reported in this thesis and previous literature. It is suggested that these are caused by the rock surface area as in previous studies the rocks have typically been crushed into powder and fine particles. This crushed powder would have provided fresh rock surface for the microorganisms and also greater surface area for reactions to take place, accounting for generally higher weathering rates in previous literature per unit weight of material.
APA, Harvard, Vancouver, ISO, and other styles
4

Halliwell, Susan M. "Weathering of plastics glazing materials." Thesis, Loughborough University, 1996. https://dspace.lboro.ac.uk/2134/15369.

Full text
Abstract:
Plastics glazing materials have properties which allow their widespread use in construction, for example as rootlights. However, they are more susceptible than is glass to degradation by weathering, notably the combined effects of ultraviolet light, heat and moisture. Examples of unacceptable durability have been seen in practice, particularly when high operating temperatures occur in sunlight. Artificial weathering tests are used to assess plastics glazing materials in a reasonably short time, two main types being utilised in this study. The applicability of ultra-fast methods of accelerated degradation has been shown to depend on the extent to which the mechanisms of degradation simulate practical weathering, since different procedures were found to promote different mechanisms in the materials tested. Misleading information was obtained when the full spectrum of solar UV and much of the visible was not adequately reproduced in the accelerated tests. In particular an established grade of PVC-U performed unexpectedly poorly under fluorescent lamps. Procedures based on xenon arc sources were found to be the most generally applicable because they better reproduce the full solar spectrum range and, hence, the typical effects observed in plastics materials in practice. Several analytical techniques were used to characterise the virgin polymers and to assess the weathered materials. Two commercial grades of each polymer type (poly[vinylchloride], polycarbonate and poly[methylmethacrylate]) were studied, and measured changes explained in terms of initial polymer properties. Profiling of chemical (e.g. carbonyl index measured by photo-acoustic fourier transform infrared), physical (e.g. molecular weight, surface gloss/roughness), optical (e.g. colour, light transmission) and mechanical properties (e.g. impact resistance) as a function of exposure period and environmental conditions enabled degradation rates and mechanisms to be established for each material. In conducting these tests particular attention was given to the control and effects of sample temperature during weathering, and to the wavelength range of the light source used. Poly(vinylchloride) was affected much more by weathering at higher temperatures, and by exposure to short wavelength radiation, than was polycarbonate, with acrylic being the most durable overall. Practical applications of this work are through Standards committees primarily. in particular with plastics rootlights (B/542/8 and CEN/TCI28/SC9).
APA, Harvard, Vancouver, ISO, and other styles
5

HEABERLIN, CLIFF. "WEATHERING: THE EVER-CHANGING FINISH." University of Cincinnati / OhioLINK, 2004. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1085544759.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Park, Kyungha. "Corrosion resistance of weathering steels." College Park, Md. : University of Maryland, 2004. http://hdl.handle.net/1903/1865.

Full text
Abstract:
Thesis (M.S.) -- University of Maryland, College Park, 2004.
Thesis research directed by: Dept. of Civil and Environmental Engineering. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.
APA, Harvard, Vancouver, ISO, and other styles
7

Reynolds, Amanda Christine. "Geochemical Investigations of Mineral Weathering: Quantifying Weathering Intensity, Silicate versus Carbonate Contributions, and Soil-Plant Interactions." Diss., The University of Arizona, 2009. http://hdl.handle.net/10150/194448.

Full text
Abstract:
This study is the geochemical examination of mineral weathering and its path from hinterland, through sediment deposition and pedogenesis, to its dissolution and eventual uptake into plants or precipitation as carbonate minerals. The three papers examine the rate and character of carbonate and silicate mineral weathering over a wide range of climatic and tectonic regimes, time periods, and lithologies, and focus on very different questions. Examination of the 87Sr/86Sr ratios of architectural ponderosa pine in Chaco Canyon, New Mexico confirms a societally complex style of timber procurement from the 10th to the 12th centuries. In El Malpais National Monument, New Mexico, we measured the 87Sr/86Sr ratios in local bedrock and soils and compared them to the leaf/wood cellulose of four conifers (Pinus ponderosa, Pinus edulis, Juniperus monosperma, Juniperus scopulorum), a deciduous tree (Populus tremuloides), three shrubs (Chrysothamus nauseosus, Fallugia paradoxa, Rhus trilobata), and an annual grass (Bouteloua gracilis) and a lichen (Xanthoparmelia lineola). We found that plant 87Sr/86Sr ratios covaried with variations in plant physiognomy, life history, and rooting depth. In addition, the proportion of atmospheric dust and bedrock mineral contributions to soil water 87Sr/86Sr ratios varied predictably with landscape age and bedrock lithology. On the Himalayan floodplain, soils and paleosol silicate weathering intensities were measured along a climatic transect and through time. Overall, carbonate weathering dominates floodplain weathering. But, periods of more intense silicate weathering between 9 - 2 Ma, identified in soil profile and in the 87Sr/86Sr ratios of pedogenic carbonates, appear to be driven by changes in tectonic, rather than climatic, regime. All three papers are good examples of how 87Sr/86Sr isotopic tracer studies can shed light on pedogenic formation rates and internal processes. The complexity of each system warns against generalizations based on just one locale, one species or lithology, or a few isotopic ratios.
APA, Harvard, Vancouver, ISO, and other styles
8

Holmqvist, Johan. "Modelling chemical weathering in different scales /." Lund, 2001. http://www-mat21.slu.se/publikation/pdf/referat_Johan.pdf.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Lamb, Helen Rachel. "Chemical weathering in Alpine subglacial environments." Thesis, University of Bristol, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.387999.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Russell, April A. (April Anne) 1981. "Trojan asteroid spectroscopy and space weathering." Thesis, Massachusetts Institute of Technology, 2004. http://hdl.handle.net/1721.1/28614.

Full text
Abstract:
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 2004.
Includes bibliographical references (leaves 48-49).
Trojan asteroids orbit the Sun at Jupiter's L4 and L5 stability points. They are included in the D-class group of asteroids because of their characteristically steep spectral slope. In accordance with spectra of other asteroid classes, we expected that the larger the diameter is of a D-class asteroid, the redder (visually) the asteroid should be in the visible spectrum. Approximately ninety Trojan asteroids have been examined, fourteen of which come from our own observations, and five of which are small and come from the SMASS I data set. The results did not confirm our original hypothesis. Instead, space weathering appears to affect Trojans in a different way than it does other asteroid classes due to their different composition.
by April A. Russell.
S.M.
APA, Harvard, Vancouver, ISO, and other styles

Books on the topic "Weathering"

1

Holzhey, Christoph F. E., and Arnd Wedemeyer, eds. Weathering. Berlin: ICI Berlin Press, 2020. http://dx.doi.org/10.37050/ci-17.

Full text
Abstract:
Weathering is atmospheric, geological, temporal, transformative. It implies exposure to the elements and processes of wearing down, disintegration, or accrued patina. Weathering can also denote the ways in which subjects and objects resist and pass through storms and adversity. This volume contemplates weathering across many fields and disciplines; its contributions examine various surfaces, environments, scales, temporalities, and vulnerabilities. What does it mean to weather or withstand? Who or what is able to pass through safely? What is lost or gained in the process?
APA, Harvard, Vancouver, ISO, and other styles
2

Goudie, Andrew. Salt weathering. Oxford: University of Oxford School of Geography, 1985.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
3

Goudie, Andrew. Salt weathering. Oxford: School of Geography, University of Oxford, 1985.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
4

University of Oxford. School of Geography, ed. Salt weathering. Oxford (Mansfield Rd., Oxford, OX1 3TB): School of Geography, University of Oxford, 1985.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
5

Clark, Dan. Weathering the storm. Latham, NY: British American Pub., 1989.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
6

A, Kittrick J., ed. Soil mineral weathering. New York: Van Nostrand Reinhold, 1986.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
7

A, Viles Heather, ed. Salt weathering hazard. Chichester: Wiley, 1997.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
8

Potter, Kathleen. Weathering the storm. London: Methuen, 1986.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
9

Potter, Kathleen. Weathering the storm. London: Methuen, 1986.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
10

Halliwell, S. M. Weathering of polymers. Oxford: Pergamon Press, 1992.

Find full text
APA, Harvard, Vancouver, ISO, and other styles

Book chapters on the topic "Weathering"

1

White, J. R. "Weathering." In Polymer Science and Technology Series, 866–73. Dordrecht: Springer Netherlands, 1999. http://dx.doi.org/10.1007/978-94-011-4421-6_118.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Arndt, Nicholas. "Weathering." In Encyclopedia of Astrobiology, 1778. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-11274-4_1688.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Likens, Gene E., and F. Herbert Bormann. "Weathering." In Biogeochemistry of a Forested Ecosystem, 95–102. New York, NY: Springer New York, 1995. http://dx.doi.org/10.1007/978-1-4612-4232-1_5.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Likens, Gene E. "Weathering." In Biogeochemistry of a Forested Ecosystem, 127–37. New York, NY: Springer New York, 2013. http://dx.doi.org/10.1007/978-1-4614-7810-2_5.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Arndt, Nicholas. "Weathering." In Encyclopedia of Astrobiology, 2653. Berlin, Heidelberg: Springer Berlin Heidelberg, 2015. http://dx.doi.org/10.1007/978-3-662-44185-5_1688.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Murad, Enver, and John Cashion. "Weathering." In Mössbauer Spectroscopy of Environmental Materials and Their Industrial Utilization, 225–39. Boston, MA: Springer US, 2004. http://dx.doi.org/10.1007/978-1-4419-9040-2_8.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Karol, Paul J. "Weathering." In The Legacy of Carbon Dioxide, 165–73. Boca Raton : CRC Press, Taylor & Francis Group, 2019.: CRC Press, 2019. http://dx.doi.org/10.1201/9780429200649-16.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Gooch, Jan W. "Weathering." In Encyclopedic Dictionary of Polymers, 807. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_12749.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Mitra, Kaushik. "Weathering." In Encyclopedia of Lunar Science, 1–6. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-319-05546-6_148-1.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Arndt, Nicholas. "Weathering." In Encyclopedia of Astrobiology, 1. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-27833-4_1688-3.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Weathering"

1

Shavers, Ethan, Abduwasit Ghulam, and John Encarnacion. "CARBONATITE WEATHERING MINERALOGY." In GSA Annual Meeting in Denver, Colorado, USA - 2016. Geological Society of America, 2016. http://dx.doi.org/10.1130/abs/2016am-287256.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Jiao, Shaohui, Gang Yang, and Enhua Wu. "Weathering fur simulation." In the 16th ACM Symposium. New York, New York, USA: ACM Press, 2009. http://dx.doi.org/10.1145/1643928.1644000.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Georgiadis, Eleanor, Tobias Roylands, Erin McClymont, Beate Christgen, Neil Gray, Caroline Le Bouteiller, Guillaume Soulet, et al. "Microbial communities in the weathering zone—implications for oxidative weathering." In Goldschmidt2023. France: European Association of Geochemistry, 2023. http://dx.doi.org/10.7185/gold2023.20152.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Zhang, Jingwen, Chenxin Tan, and Chunsheng Wang. "Formation mechanism, detection and evaluation of weathering patina on weathering steel bridges." In IABSE Conference, Seoul 2020: Risk Intelligence of Infrastructures. Zurich, Switzerland: International Association for Bridge and Structural Engineering (IABSE), 2020. http://dx.doi.org/10.2749/seoul.2020.313.

Full text
Abstract:
<p>The weathering bridge steel has a lower corrosion rate than low alloy steel bridge, which could produce dense and stable patina on the steel surface, separating the steel substrate from the external corrosion eviroment and preventing the further corrosion. In this paper, the patina of weathering steel for bridge were studied from formation mechanism, evaluation method and patina field and in-suit testing. The formation mechanism and composition of patina was studied, the applicability of detection and evaluation methods of weathering steel bridge were clarified, and the patina stability of weathering steel orthotropic bridge deck and existing bridge in China were evaluated. The purpose of this paper is to provide guidance and selection for the maintenance methods of the patina in the weathering steel bridge.</p>
APA, Harvard, Vancouver, ISO, and other styles
5

Sutton, Tonja, and Cheryl Wurst. "Prediction of Automotive Interior Plastic Weathering Performance with Accelerated Weathering Techniques." In International Congress & Exposition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 1993. http://dx.doi.org/10.4271/930629.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Xu, Tingting, and Chloé Arson. "Coupling Between Weathering and Fracture: Finite Element Modeling of Granite Weathering Using Cohesive Elements." In 58th U.S. Rock Mechanics/Geomechanics Symposium. ARMA, 2024. http://dx.doi.org/10.56952/arma-2024-0697.

Full text
Abstract:
ABSTRACT: This research examines the initiation of fracture propagation by weathering and explores how an escalation in fracture density accelerates weathering rates. By integrating cohesive zone elements into an ABAQUS FEM software through user-defined subroutines, we simulate arbitrary fracture paths and examine the effect of weathering on stress redistribution and fracture propagation in the bedrock. The weathering rate is scaled based on the magnitude of fracture opening displacements, which control fluid exchanges. Simulations in a topographical setting reveal that weathering significantly affects cohesive fracture propagation, particularly in the upper 30 meters where weathering accelerates both fracture propagation and the depletion of reactant mass, in particular unweathered biotite. These findings underscore the potential of the proposed methodology for predicting the interplay between weathering and fracture development, and thus explaining the formation of landscapes as a result of climatic events and ensued environmental processes. 1 INTRODUCTION Fractures play a crucial role in enhancing the connectivity of pore spaces, thereby significantly increasing rock permeability. This facilitation of fluid flow is instrumental in accelerating mineral dissolution processes, as evidenced by Hu et al. (2011). Fracture systems increase the specific surface of the bedrock, which escalates the likelihood of chemical reactions (St. Clair et al., 2015), thereby altering rock structure through the interplay of chemical, mechanical, and hydrological processes. Such transformations are pivotal in promoting further weathering, as was demonstrated in studies that document the coupling between bedrock weathering and fracture propagation (Navarre-Sitchler et al., 2015). Reversely, weathering enhances rock permeability (Worthington et al., 2016). A simplified homogenization model was recently introduced (Lebedeva and Brantley, 2023) to explain the impact of reactive flow in fractured rock. Despite these developments, the feedback mechanisms between weathering and bedrock porosity evolution via microcracks and metric fractures remain under-explored. In order to address this gap, Cohesive Zone (CZ) elements are inserted within the Finite Element Method (FEM) model initially developed by Xu et al. (2022). The fracture represented by the CZ elements, comparable in length to the volume elements, are significantly larger than the microcracks depicted in the damage variable of the homogenization model implemented in the Finite Elements (FEs), offering a novel approach to examining the intricate feedback effects between weathering and porosity evolution in bedrock. The homogenization approach is summarized in Section 2. The coupling between the CZ tractionseparation law and the continuum variables of the homogenization model is explained in Section 3. Numerical results are presented in Section 4, and conclusions are drawn in Section 5.
APA, Harvard, Vancouver, ISO, and other styles
7

Jiao, Shaohui, and Enhua Wu. "Simulation of weathering fur." In the 8th International Conference. New York, New York, USA: ACM Press, 2009. http://dx.doi.org/10.1145/1670252.1670262.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Murton, J. B. "Frost weathering of chalk." In Chalk 2018 Engineering in Chalk. ICE Publishing, 2018. http://dx.doi.org/10.1680/eiccf.64072.497.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Oglesby, James P., Willard L. Lindsay, and Willy Z. Sadeh. "WEATHERING OF LUNAR SIMULANTS." In International Conference On Environmental Systems. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 1994. http://dx.doi.org/10.4271/941486.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Barton, Benjamin, Stephen T. Nelson, Peter Van Katwyk, and Leeza Wells. "GRADATIONAL WEATHERING OF MOLOKAI, HAWAII: GEOPHYSICAL STUDY OF HAWAIIAN LATERITIC WEATHERING PROFILES." In GSA 2020 Connects Online. Geological Society of America, 2020. http://dx.doi.org/10.1130/abs/2020am-356841.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Weathering"

1

Wilford, J. Revised weathering intensity model of Australia. Geoscience Australia, 2020. http://dx.doi.org/10.11636/123314.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Wilford, J. Revised weathering intensity model of Australia. Geoscience Australia, 2020. http://dx.doi.org/10.11636/123671.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

DuBois, F., and J. Baytos. Weathering of explosives for twenty years. Office of Scientific and Technical Information (OSTI), May 1991. http://dx.doi.org/10.2172/5616373.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Currie, Janet, and Maya Rossin-Slater. Weathering the Storm: Hurricanes and Birth Outcomes. Cambridge, MA: National Bureau of Economic Research, May 2012. http://dx.doi.org/10.3386/w18070.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Lavender, B. Weathering the changes - climate change in Ontario. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2001. http://dx.doi.org/10.4095/212662.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Mikula, R. J., D. E. Axelson, and K. H. Michaelian. Oxidation and weathering of stockpiled Western Canadian coals. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1985. http://dx.doi.org/10.4095/304866.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Castro-Vincenzi, Juanma, Gaurav Khanna, Nicolas Morales, and Nitya Pandalai-Nayar. Weathering the Storm: Supply Chains and Climate Risk. Cambridge, MA: National Bureau of Economic Research, March 2024. http://dx.doi.org/10.3386/w32218.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Forrest, Natalie, and Jonathan Wentworth. Enhanced rock weathering: Potential UK greenhouse gas removal. Parliamentary Office of Science and Technology, August 2024. http://dx.doi.org/10.58248/pn726.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Ehlen, Judy, and A. J. Gerrard. A Bibliography on the Chemical Weathering of Granitic Rocks. Fort Belvoir, VA: Defense Technical Information Center, September 1988. http://dx.doi.org/10.21236/ada200157.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Prior, Stephen, Robert Armstrong, Ford Rowan, and Mary B. Hill-Harmon. Weathering the Storm. Leading Your Organization Through a Pandemic. Fort Belvoir, VA: Defense Technical Information Center, November 2006. http://dx.doi.org/10.21236/ada466801.

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!

To the bibliography