Academic literature on the topic 'Rock material types'

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 'Rock material types.'

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 "Rock material types"

1

Selen, Lena, Krishna Kanta Panthi, Mai Britt Mørk, and Bjørn Eske Sørensen. "Compositional Features and Swelling Potential of Two Weak Rock Types Affecting Their Slake Durability." Geotechnics 1, no. 1 (2021): 172–91. http://dx.doi.org/10.3390/geotechnics1010009.

Full text
Abstract:
Weak and weathered rocks are well known for their sensitivity to changes in moisture content. Degrading behavior is common in weak rocks with moisture-sensitive mineral components and present numerous stability problems. The slake durability is a measure of the resistance to weakening and disintegration of rock materials which quantitatively distinguishes durable from non-durable rock materials. Several rock material parameters interact on the process of disintegration when exposed to cyclic moisture changes, whereby the content of clay is believed to play a major role. This manuscript evaluat
APA, Harvard, Vancouver, ISO, and other styles
2

Morozov, Yu A., M. A. Matveev, A. I. Smulskaya, and A. L. Kulakovskiy. "Two genetic types of pseudotachylytes." Доклады Академии наук 484, no. 5 (2019): 589–94. http://dx.doi.org/10.31857/s0869-56524845589-594.

Full text
Abstract:
The study of two varieties of pseudotachylytes (PST) in granitoids of the Riphean complex on the Barents Sea coast of the Kola Peninsula (Rybachii and Srednii peninsulas) and in metapsammite of the Paleoproterozoic complex in the Northern Ladoga region by a few independent analytical methods has made it possible to establish that they belong to different genetic forms, such as mechanically crushed rocks and melting products, respectively. As for the melting differences, we have given a detailed description of the mineral and material transformations of the original rock into the PST glass matr
APA, Harvard, Vancouver, ISO, and other styles
3

Li, Diyuan, Bang Li, Zhenyu Han, and Quanqi Zhu. "Evaluation on Rock Tensile Failure of the Brazilian Discs under Different Loading Configurations by Digital Image Correlation." Applied Sciences 10, no. 16 (2020): 5513. http://dx.doi.org/10.3390/app10165513.

Full text
Abstract:
The fracture behavior of the disc specimens in the Brazilian test is closely related to the reliability and accuracy of the experimental results. To comprehensively investigate the effect of various loading methods and rock material types on the failure mechanism of the Brazilian discs, five different rock types tested with three typical loading methods were employed in this work. The digital image correlation (DIC) method was applied to record and analyze the strain and displacement field of the specimens during the loading process. Experimental results indicate that the peak load and deforma
APA, Harvard, Vancouver, ISO, and other styles
4

Hasanzadehshooiili, Hadi, Ali Lakirouhani, and Jurgis Medzvieckas. "EVALUATING ELASTIC-PLASTIC BEHAVIOUR OF ROCK MATERIALS USING HOEK–BROWN FAILURE CRITERION." Journal of Civil Engineering and Management 18, no. 3 (2012): 402–7. http://dx.doi.org/10.3846/13923730.2012.693535.

Full text
Abstract:
As a matter of fact, the failure criteria only predict failure's initiation in materials. And, in order to predict post-yield behaviour of materials, a much complicated formulation for stress-strain relationship is required, which we know as plasticity theory. For instance, these formulations are developed based on Mohr-Coulomb criterion for soils and Drucker-Prager criterion for concrete. According to a majority of rock mechanics researchers, the empirical and experimental Hoek-Brown failure criterion is one of the well-progressed and suitable criteria, which can efficiently predict the rock
APA, Harvard, Vancouver, ISO, and other styles
5

Kılınçarslan, Şemsettin, Ebru Yılmaz İnce, Ebru Başpınar Tuncay, and Fuzuli Yağmurlu. "Clustering Analysis of Normal Strength Concretes Produced with Different Aggregate Types." Open Chemistry 16, no. 1 (2018): 918–22. http://dx.doi.org/10.1515/chem-2018-0100.

Full text
Abstract:
AbstractConcrete is the most commonly used structural material, which is composed of individual base materials. The compressive strength of concrete is important to understand for activities like construction arrangement, prestressing operations, proportioning new mixtures and quality assurance. Concrete has a problem known as Clustering, which is the unsupervised classification of patterns into clusters. The clustering problem has been addressed by several researchers in many contexts and various disciplines; this shows that clustering uses many areas and is an important step in data analysis
APA, Harvard, Vancouver, ISO, and other styles
6

Wanniarachchi, W. A. M., P. G. Ranjith, M. S. A. Perera, T. D. Rathnaweera, Q. Lyu, and B. Mahanta. "Assessment of dynamic material properties of intact rocks using seismic wave attenuation: an experimental study." Royal Society Open Science 4, no. 10 (2017): 170896. http://dx.doi.org/10.1098/rsos.170896.

Full text
Abstract:
The mechanical properties of any substance are essential facts to understand its behaviour and make the maximum use of the particular substance. Rocks are indeed an important substance, as they are of significant use in the energy industry, specifically for fossil fuels and geothermal energy. Attenuation of seismic waves is a non-destructive technique to investigate mechanical properties of reservoir rocks under different conditions. The attenuation characteristics of five different rock types, siltstone, shale, Australian sandstone, Indian sandstone and granite, were investigated in the labor
APA, Harvard, Vancouver, ISO, and other styles
7

Pan, Yue, Zhiming Zhao, Liu He, and Guang Wu. "A Nonlinear Statistical Damage Constitutive Model for Porous Rocks." Advances in Civil Engineering 2020 (October 22, 2020): 1–12. http://dx.doi.org/10.1155/2020/8851914.

Full text
Abstract:
In the current paper, the deformation behaviours of rocks during compression are studied by testing 10 groups of sandstone samples with different porosity characteristics. According to the energy theory, the rock material was divided into two parts: solid skeleton and voids. A statistical damage-based approach was adopted to establish a nonlinear statistical damage constitutive model. The validity of the statistical damage constitutive model is verified by the test data. The statistical damage constitutive model performs well in each stage of rock compression before failure. For different type
APA, Harvard, Vancouver, ISO, and other styles
8

Latham, J. P., J. P. Hoad, and M. Newton. "Abrasion of a series of tracer materials on a gravel beach, Slapton Sands, Devon, UK." Geological Society, London, Engineering Geology Special Publications 13, no. 1 (1998): 121–35. http://dx.doi.org/10.1144/gsl.eng.1998.013.01.10.

Full text
Abstract:
AbstractWhile increased attention is being paid to the use of quarried rock in groynes, revetments and breakwaters, and to beach recharge, the large volumes of materials and the associated environmental costs of obtaining these resources has begun to focus minds. Interest in the possible future use of a wider range of material sizes and qualities for beach recharge and in the use of smaller armour block sizes which move during profile adjustment has been growing. Deployment of these dynamic materials for coastal protection structures has focussed research on the long-term performance of these
APA, Harvard, Vancouver, ISO, and other styles
9

Fu, Huanran, Sijing Wang, Xiangjun Pei, and Weichang Chen. "Indices to Determine the Reliability of Rocks under Fatigue Load Based on Strain Energy Method." Applied Sciences 9, no. 3 (2019): 360. http://dx.doi.org/10.3390/app9030360.

Full text
Abstract:
Rock is a complicated material which includes randomly distributed grains and cracks. The reliability of rocks under fatigue load is very important during the construction and operation of rock engineering. In this paper, we studied the deformation and failure process of red sandstone under fatigue load in a laboratory based on a new division method of strain energy types. The traditional elastic strain energy density is divided into two categories: grain strain energy density and crack strain energy density. We find that the proportion of the grain strain energy density to total strain energy
APA, Harvard, Vancouver, ISO, and other styles
10

Liu, Shi, Jinyu Xu, and Xinyu Fang. "Assessment of impact mechanical behaviors of rock-like materials heated at 1,000°C." High Temperature Materials and Processes 39, no. 1 (2020): 489–500. http://dx.doi.org/10.1515/htmp-2020-0040.

Full text
Abstract:
AbstractRock acts as a natural brittle material and demonstrates reactions to various dynamic disturbances and high temperature. Mechanical property fluctuations under high temperature and dynamic load for rock materials including marble, sandstone and granite are studied in an underground project of Qinling Mountain in China, exposed to 1,000°C treatments and different strain rate impact loadings. Two main research issues are explored: (1) variations of strength and failure modes of the same high-temperature rock type under different strain rate impact loadings. (2) Comparison of strength and
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Rock material types"

1

Hyun, Yunjung. "Multiscale anaylses of permeability in porous and fractured media." Diss., The University of Arizona, 2002. http://etd.library.arizona.edu/etd/GetFileServlet?file=file:///data1/pdf/etd/azu_e9791_2002_321_sip1_w.pdf&type=application/pdf.

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

Breytenbach, Izak Johannes. "The relationship between index testing and California Bearing Ration values for natural road construction materials in South Africa." Diss., 2009. http://hdl.handle.net/2263/30389.

Full text
Abstract:
The research portrayed in this dissertation aims to derive empirical means of predicting CBR values from index testing parameters and parameters calculated from them (e.g. shrinkage product). The project involved compiling a database of test results for a range of rock material types across moist and dry regions in southern Africa. The database was compiled in such a way that it represents natural gravels sampled (mostly) for construction or rehabilitation of road layer works. The database included a location description, material description, Weinert N-Value, Atterberg Limits, grading analysi
APA, Harvard, Vancouver, ISO, and other styles

Books on the topic "Rock material types"

1

Serebryakov, Oleg, and Lyubov' Ushivceva. Hydrogeology of oil and gas fields. INFRA-M Academic Publishing LLC., 2020. http://dx.doi.org/10.12737/969661.

Full text
Abstract:
Considered questions of the course "Hydrogeology of oil and gas", which is offered to students of geological specialties. Describes the types of water in minerals and rocks, terms of origin, occurrence and movement; the formation of chemical, gas and bacterial composition of the water. The major hydrogeological provinces and characteristics of waters of separate fields. Thematic material is accompanied by test questions, practical tasks, tasks, drawings, tests and tables.
 Meets the requirements of Federal state educational standards of higher education of the last generation.
 For s
APA, Harvard, Vancouver, ISO, and other styles
2

měření, Czechoslovakia Úřad pro normalizaci a. Referenční materiály: Metodika přípravy a atestace referenčních materiálů složení hornin a nerostných surovin = Metrologii͡a︡ : standartnye obrazt͡s︡y : metodika izgotovlenii͡a︡ i attestat͡s︡ii standartnykh obrazt͡s︡ov sostava gornykh porod i mineralʹnogo syrʹi͡a︡ = Metrology : standart reference materials : preparation and attestation of standard reference materials of rocks and mineral raw materials. Vydavatelství Úřadu pro normalizaci a měření, 1988.

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

Temperley, David. The Musical Language of Rock. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780190653774.001.0001.

Full text
Abstract:
A theory of the structure of rock music is presented, addressing aspects such as tonality/key, harmony, rhythm/meter, melody, phrase structure, timbre/instrumentation, form, and emotional expression. The book brings together ideas from the author’s previous articles but also contains substantial new material. Rock is defined broadly (as it often is) to include a wide range of late twentieth-century Anglo-American popular styles, including 1950s rock & roll, Motown, soul, “British invasion” rock, soft rock, heavy metal, disco, new wave, and alternative rock. The study largely employs the in
APA, Harvard, Vancouver, ISO, and other styles
4

Martin, Derek, and Peter Stacey, eds. Guidelines for Open Pit Slope Design in Weak Rocks. CSIRO Publishing, 2018. http://dx.doi.org/10.1071/9781486303489.

Full text
Abstract:
Weak rocks encountered in open pit mines cover a wide variety of materials, with properties ranging between soil and rock. As such, they can provide a significant challenge for the slope designer. For these materials, the mass strength can be the primary control in the design of the pit slopes, although structures can also play an important role. Because of the typically weak nature of the materials, groundwater and surface water can also have a controlling influence on stability.
 Guidelines for Open Pit Slope Design in Weak Rocks is a companion to Guidelines for Open Pit Slope Design, w
APA, Harvard, Vancouver, ISO, and other styles
5

Temperley, David. Form. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780190653774.003.0008.

Full text
Abstract:
Most rock songs fall into one of three formal types: simple verse (with a short, repeating verse-refrain section), AABA (with a verse-refrain and a contrasting bridge), and verse-chorus (with an alternation between verse and chorus, usually with contrasting material after the second chorus). This chapter adopts this framework, though it also emphasizes the strong connections between AABA and verse-chorus forms. Since the 1960s, verse-chorus form has been predominant; together, a verse and chorus form a “verse-chorus unit,” or VCU. An issue of particular interest is the opposition between verse
APA, Harvard, Vancouver, ISO, and other styles
6

Berger, Antony R. Geology and Health. Edited by H. Catherine W. Skinner. Oxford University Press, 2003. http://dx.doi.org/10.1093/oso/9780195162042.001.0001.

Full text
Abstract:
Geology and Health is an integration of papers from geo-bio-chemical scientists on health issues of concern to humankind worldwide, demonstrating how the health and well-being of populations now and in the future can benefit through coordinated scientific efforts. International examples on dusts, coal, arsenic, fluorine, lead, mercury, and water borne chemicals, that lead to health effects are documented and explored. They were selected to illustrate how hazards and potential hazards may be from natural materials and processes and how anthropomorphic changes may have contributed to disease and
APA, Harvard, Vancouver, ISO, and other styles

Book chapters on the topic "Rock material types"

1

Verrecchia, Eric P., and Luca Trombino. "Basic Components." In A Visual Atlas for Soil Micromorphologists. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-67806-7_3.

Full text
Abstract:
AbstractMineral and organic constituents belong to the basic components observed in soil thin sections. They can appear, for instance, as large rock fragments, or single minerals as sand grains; they can constitute large areas of micromass formed by clay minerals or display parts of plant roots or leaf fragments, i.e. organic material. These constituents comprise the body of the soil itself, and in soil micromorphology, they belong to the groundmass, as well as the material constituting the pedofeatures (see “10.1007/978-3-030-67806-7_1#Sec9”). Two types of basic components are recognized by Stoops (2003, 2021), those recognizable at the magnifications of the optical microscope and those which are not. Stoops (2003, 2021) pointed out the problem of the optical microscope resolution and the thickness of conventional thin sections. Indeed, it is preferable not to have a standard size limit between coarse and fine materials.
APA, Harvard, Vancouver, ISO, and other styles
2

Dafalias, Yannis F. "On Large Deformations of Rock-type Transversely Isotropic Materials." In Large Deformations of Solids: Physical Basis and Mathematical Modelling. Springer Netherlands, 1986. http://dx.doi.org/10.1007/978-94-009-3407-8_21.

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

Braae, Nick. "Artistic Craft and Crafted Artistry." In Rock and Rhapsodies. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780197526736.003.0003.

Full text
Abstract:
This chapter presents three common strategies that account for the structures of Queen’s songs: conventional templates (such as AABA or Verse-Chorus), conventional templates with added material (such as Verse-Chorus with two bridge sections), and episodic (irregular sequence of multiple sections). These types of forms appear in relatively equal measure and with relative consistency across Queen’s output. Beyond these strategies, it is argued that Queen’s approach to form may be understood as balancing ‘artistic’ and ‘craft’ techniques, drawing on Covach’s analysis of The Beatles. Songs with simple structures are often imbued with modulations or other rich harmonic devices; songs with more complex structures still retain a strong sense of tonal security and phrase regularity. Queen is thus positioned in the middle of pop and progressive compositional aesthetics from the 1970s.
APA, Harvard, Vancouver, ISO, and other styles
4

Church, Joseph. "Popular Song vs. Theatre Song." In Rock in the Musical Theatre. Oxford University Press, 2019. http://dx.doi.org/10.1093/oso/9780190943462.003.0003.

Full text
Abstract:
Chapter 2 follows up on the material of earlier chapters with an extensive description and comparison of rock songs and theatre songs. First, the commonalities of all songs are reviewed, and a connection is made between song and human behavior. The notion of popular song and musical theatre as commercial enterprises is established. Following this is a detailed breakdown of the essential yet separate qualities of popular songs and theatre songs, both music and lyrics, and the connection between text and music. Each genre is examined through its definitive characteristics, then the two types of song are compared. Last is a discussion of the integration of popular songs and rock styles into theatre scores, divided into archetypal themes for songs of all kinds.
APA, Harvard, Vancouver, ISO, and other styles
5

Herz, Norman, and Ervan G. Garrison. "Archaeological Materials :Rocks and Minerals." In Geological Methods for Archaeology. Oxford University Press, 1998. http://dx.doi.org/10.1093/oso/9780195090246.003.0016.

Full text
Abstract:
This chapter is only a brief introduction to lithic archaeological materials. Archaeologists with but little knowledge of rocks and rock-forming minerals are urged to learn about them in greater detail than that presented here. Lithic resources are abundant in almost every archaeological site, and lithic artifacts are invariably the best preserved of any remains. Early societies learned how to exploit these resources, and the use and production of lithics go back to the earliest known sites, at least 1.5 million years. In fact, the earliest cultures are distinguished on the basis of their lithic industries and lithic artifacts. Horror stories in misidentification of lithics abound. Not only have misidentified artifacts proven embarrassing to the archaeologist, but also they have made it difficult to make meaningful comparisons of different societies using published descriptions. In addition, conservation strategies for historical monuments cannot be developed without an understanding of the nature of the material used in their construction. Some egregious examples of ignorance of the rocks and minerals from our personal experience include the following: 1. An archaeologist asked if a quartzite scraper was either flint or chert. When told that it was neither, he asked, "Well then, which is it more like?" (answer, still neither). 2. Egyptian basalt statues have been called limestone in publications (and several other rock types). 3. Sources for alabaster were searched to explain a trading link between a site and elsewhere when the geological map showed the site was adjacent to a mountain of gypsum, the mineral component of alabaster (the gypsum may have merely rolled down the hillside to the workshops, where it became the more salable alabaster). 4. Conservators searched for methods to preserve an allegedly granitic historic monument, or so it had been identified. Chemical analysis revealed only abundant Ca, Mg, and carbonate. Fossils were also abundant in the "granite," which dissolved easily in hydrochloric acid (the "granite" was clearly limestone). Petrology is the branch of geology that deals with the occurrence, origin, and history of rocks. Petrography is concerned with descriptions of rocks, their mineralogy, structures, and textures.
APA, Harvard, Vancouver, ISO, and other styles
6

Gough, L. P., and W. C. Day. "Cadmium Accumulation in Browse Vegetation, Alaska — Implications for Animal Health." In Geology and Health. Oxford University Press, 2003. http://dx.doi.org/10.1093/oso/9780195162042.003.0018.

Full text
Abstract:
We conducted biogeochemical investigations of Cd transport and uptake by vegetation over a metamorphic and intrusive terrane in the Fortymile River watershed and Mining District, east-central Alaska. The occurrence of Cd in eolian-dominated sub-arctic soils developed over five major rock units was examined, as well as its relative bioaccumulation in willow. Although the bioaccumulation of Cd by willow (Salix spp.) has been known for some time (Gough 1991), the connection to adverse animal health, under natural (geogenic) conditions, has only recently been demonstrated (Larison et al. 2000, Mykelbust and Pederson 1999). We present Cd data for three soil horizons and the leaf and twig material of Salix glauca L. (grayleaf willow) collected at sites within defined rock units. The cycling of Cd and its bioaccumulation in willow are compared among rock types and soil horizons. Cadmium in study area soils is derived from aeolian dust (loess) and the weathering of the primary bedrock. Plots of rare earth elements (REE, normalized to chondrite abundance’s) in samples of A, B, and C soil horizon soils were similar to REE patterns in regional loess samples and did not correspond to bedrock patterns. Not surprisingly, therefore, we found essentially no difference in the concentration of Cd in soils developed over different lithologic units. In addition, the anthropogenic input (from mining) at sites we sampled was found to be minimal. Cadmium levels in soil are generally higher than that found in the study area rock types (~2ppm)(Day2000). In our acidic soils (pH 4.5-6.0), Cd should be mobile (readily leached), and should tend to form complexes with carbonates, hydroxides, and phosphates. Interestingly, Cd concentrations decrease with increasing soil depth — a trend directly proportional to soil organic matter content. Enrichment factors (EF), a measure of the relative uptake by a plant of an element from its substrate — a sort of “bioavailability” assessment, are presented in Figure 12.2 for Cd in willow leaf material. This procedure normalizes the data, with respect to a geochemical reference element (in this case Ce), for each of the soil horizons developed over the five major rock units.
APA, Harvard, Vancouver, ISO, and other styles
7

Snead, James E. "“These places know him no more”: Surveys, Panoramas, and the Landscape of Ancient America." In Relic Hunters. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198736271.003.0008.

Full text
Abstract:
Around 1850 an image of a mysterious cavern in the western country was painted on a vast stretch of canvas. It depicts an elaborate, subterranean realm with colorful stalactites, exotic mineral formations, and an enigmatic hieroglyphic inscription. The darkness is illumined by the flaming brands of a party of explorers, who move about in active curiosity. In the shadows beyond the torchlight a trio of mummies can be seen, propped up against the rocks. The Kentucky Mummy—and a few of her peers—patiently await the attention of Investigators. The description attached to the painting, however, suggests that its object is not Mammoth Cave, but another western grotto, located in a bluff alongside the Ohio known as Cave-in-Rock. In actuality there were no stalactites at this particular location, and no evidence for antiquities either. Early in the era of western exploration the cavern had been used as shelter by travelers: the walls were indeed inscribed, but—like the trees that had once risen atop the Grave Creek Mound—with the signatures of those passing through rather than with those of the ancient inhabitants. More infamously, the cave had been used by river pirates as a base for attacks on flatboat passengers. Eastern newspapers had carried accounts of the banditti of Cave-in-Rock. Thomas Ashe included the cave among his bone-filled catacombs, and a newspaper article of a few years later described the place as a “dark mansion of the murdered.” John Egan’s romanticized depiction of Cave-in-Rock—executed on behalf of Montroville Dickeson—illustrates the complex accretion of historicized landscapes in the American West in the era prior to the Civil War. For the mid-nineteenth-century audience such palimpests were relatively commonplace, representing the increasing time depth of settlement and the progressive integration of different types of historical experience. That the painter had apparently never seen the place itself was irrelevant: his canvas artfully joined the ancient dead with the casualties of more recent times, connecting past and present in equal degree, within a mythicized western setting. The nature of Egan’s work itself indicated that visual imagery was a potentially powerful strategy for engaging the material past in the antebellum United States.
APA, Harvard, Vancouver, ISO, and other styles
8

Genge, Matthew J. "Drawing hand-specimens of rocks and crystals." In Geological Field Sketches and Illustrations. Oxford University Press, 2019. http://dx.doi.org/10.1093/oso/9780198835929.003.0011.

Full text
Abstract:
Rocks and minerals are naturally occurring solid materials that make up planetary bodies such as the Earth and are highly diverse. This chapter describes how to record the mineralogy and petrology of rocks using drawings and includes methods used to graphically record hand-specimens of rocks and crystals. Four worked examples of drawings of hand-specimens are included to illustrate techniques and the important features to record. Practical advice on how to identify rock types and minerals is also given. The outline of the specimen is important since it guides the placement of other features. The petrology must be simplified to make drawing practical.
APA, Harvard, Vancouver, ISO, and other styles
9

"Picturing Minerals and Rocks." In Advances in Multimedia and Interactive Technologies. IGI Global, 2014. http://dx.doi.org/10.4018/978-1-4666-4627-8.ch009.

Full text
Abstract:
In this chapter, we draw inspiration from the study of Earth structures and materials, as well as processes and forces that change these structures, which is the core of the domain of physical geology. We examine minerals, main types of rocks, gems, and other more mundane earth baubles, the rock cycle, and processes that change the structure of the minerals. Projects are aimed at linking these physical and chemical processes and events with our ambient surroundings and personal perceptions of our own experiences.
APA, Harvard, Vancouver, ISO, and other styles
10

Alexander, Earl B., Roger G. Coleman, Todd Keeler-Wolfe, and Susan P. Harrison. "Synthesis and Future Directions." In Serpentine Geoecology of Western North America. Oxford University Press, 2007. http://dx.doi.org/10.1093/oso/9780195165081.003.0031.

Full text
Abstract:
Ultramafic rocks come from deep within the earth. Most rocks on the surface of the earth are quite different from them. Unique rocks make unique soils and support special plants. Exploring the links and interactions among these unique rocks, soils, and vegetation is an interdisciplinary endeavor that has been accomplished by experts in three areas. It has helped elucidate serpentine rock–soil–plant relationships and provide a rationale for the unusual soil properties and vegetation associated with ultramafic rocks. Examples from arctic tundra to temperate rainforest and hot desert in western North America provide a framework for the investigation of serpentine geoecosystems around the world. The unusual character of most serpentine vegetation is readily apparent even to an untrained eye. Although a vast number of rock and soil types make up the earth’s surface, few have as dramatic and visible effects on ecosystems as do ultramafic, or serpentine materials. Most ultramafic rocks in western North America have been derived from the mantle of earth via ocean crust. Magnesium is highly concentrated in the mantle and calcium, potassium, and phosphorous are relatively low. Calcium and potassium are further depleted from peridotite in the partial melting of ultramafic rock at the base of the ocean crust. As oceanic plates drift from spreading centers, most of the ocean crust is subducted and returns to the mantle (chapter 2). Only relatively small fragments of ocean crust are added to the continents. Because eukaryotic organisms, from protozoa to plants and animals, have evolved on continental crust, they are adapted to soils with higher concentrations of calcium, potassium, and phosphorus (elements with higher concentrations in continental crust than in ultramafic rocks from the base of the ocean crust) and much lower concentrations of magnesium. Having evolved on continents, plants depend on relatively high ratios of calcium and potassium to magnesium, elements that they use for a wide range of physiological functions. Although there has been a long history of evolutionary adaptation to the chemistry of the continental crust, special adaptations have allowed some plants to colonize the atypical conditions of serpentine.
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Rock material types"

1

Фролов, Петр, Вера Ильина, Александр Завёрткин, Екатерина Климовская, and Александр Савицкий. "Karelian talc as a raw material: practical application and potential contribution to Russian mineral raw material reserves." In Mineralogical and technological appraisal of new types of mineral products. Karelian Research Center of RAS, 2019. http://dx.doi.org/10.17076/tm13_6.

Full text
Abstract:
Talc is a unique natural material. Some talc-bearing rocks, e.g. soapstone, are also useful minerals. There are talc deposits on the Fennoscandian Shield. The main potential talc resources and reserves are in the Karelian Craton, which is part of the shield. Talc deposits in the Finnish extension of the craton are being mined in the Kainuu Schist Belt and soapstone deposits in the Suomussalmi-Kuhmo Greenstone Belt. The Karelian portion of the craton seems to be more promising for talc-bearing deposits, because favourable rock complexes of greenstone belts are more common there. The revival of
APA, Harvard, Vancouver, ISO, and other styles
2

Ilyina, V. P., and P. V. Frolov. "Ultramafic rocks of the Aganozero chromium ore deposit (South Karelia) as a non-conventional magnesium-silicate raw material for the production of new ceramic materials." In Mineralogical and technological appraisal of new types of mineral products. Karelian Research Center of RAS, 2019. http://dx.doi.org/10.17076/tm13_11.

Full text
Abstract:
Ultramafic rocks of the Aganozero chromium ore deposit located in South Karelia are of practical interest as a high-Mg raw material for industrial application. The preliminary results of the study of high-Mg rocks and minerals from the Aganozero deposit for the production of new materials are reported. The high technological level and economic efficiency of the ceramic materials produced, based on Karelia’s high-Mg rocks and industrial minerals, were achieved by reducing energy consumption and simplifying the technological process. The practical application of local types of mineral products w
APA, Harvard, Vancouver, ISO, and other styles
3

Dolphin, B. H., W. D. Richins, and S. R. Novascone. "Automating Risk Assessments of Hazardous Material Shipments for Transportation Routes and Mode Selection." In ASME 2010 International Mechanical Engineering Congress and Exposition. ASMEDC, 2010. http://dx.doi.org/10.1115/imece2010-38880.

Full text
Abstract:
The METEOR (Model to Evaluate Transportation Effects of Risk) project at Idaho National Laboratory (INL) successfully addresses the difficult problem in risk assessment analyses of combining the results from bounding deterministic simulation results with probabilistic (Monte Carlo) risk assessment techniques. This paper describes a software suite designed to perform sensitivity and cost/benefit analyses on selected transportation routes and vehicles to minimize risk associated with the shipment of hazardous materials. METEOR uses Monte Carlo techniques to estimate the probability of an acciden
APA, Harvard, Vancouver, ISO, and other styles
4

Abdelfatah, Elsayed, Maysam Pournik, and David Craig. "Simulation of Dissolution Front Propagation During Acid Injection Into Porous Media: A CFD Approach." In ASME 2018 Power Conference collocated with the ASME 2018 12th International Conference on Energy Sustainability and the ASME 2018 Nuclear Forum. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/power2018-7167.

Full text
Abstract:
Acid is often injected into porous media to dissolve rock material and enhance flow capability of the rock. Most simulation studies on the propagation of the dissolution front are based on constant injection rate (CIR). Therefore, the objective of this work is to develop numerical model to study acid dissolution front under constant injection pressure (CIP) and also incorporate the effect of fluid temperature on acid–rock interaction. Commercial computational Fluid Dynamics (CFD) software (ANSYS Fluent) is used to solve three-dimensional acid-rock interaction model in cylindrical coordinates.
APA, Harvard, Vancouver, ISO, and other styles
5

Kelly, Shaina, Ron J. M. Bonnie, Micheal J. Dick, and Dragan Veselinovic. "NMR WETTABILITY INDEX MEASUREMENTS AND METHODS COMPARED ON A VARIETY OF UNCONVENTIONAL SAMPLES." In 2021 SPWLA 62nd Annual Logging Symposium Online. Society of Petrophysicists and Well Log Analysts, 2021. http://dx.doi.org/10.30632/spwla-2021-0096.

Full text
Abstract:
Matrix wettability is a key driver in relative permeability and, hence, a critical factor controlling imbibition and drainage at UR fracture-matrix interfaces as well as enhanced oil recovery (EOR). In this study, we (1) adapt and apply the NMR-based wettability index (NWI) methodology of Looyestijn et al. (2006) to a variety of unconventional twin samples undergoing, respectively, spontaneous imbibition with oil-displacing-water and water-displacing-oil and (2) compare the robustness of this method among a variety of samples pairs and also to other NMR-based wettability methods. The samples a
APA, Harvard, Vancouver, ISO, and other styles
6

Nurmikolu, Antti, Olli Kerokoski, Tommi Rantala, and Tuomo Viitala. "Cyclic Loading Tests of Concrete Sleepers With Varying Ballast Condition." In 2010 Joint Rail Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/jrc2010-36147.

Full text
Abstract:
The experiences on the use of concrete sleepers in Finnish railways are mainly very good when the supporting layer, ballast, consists of coarse-grained crushed rock aggregate. Nowadays in Finland there are still wooden sleepers on many lines carrying little traffic. On these lines the ballast often consists of gravel providing essentially weaker support for the sleepers. One question in future renovations is whether concrete sleepers remain undamaged with gravel ballast. To test the bending behaviour of four different sleeper models resting on three different ballast beds, a cyclic loading tes
APA, Harvard, Vancouver, ISO, and other styles
7

Hendraningrat, Luky, Saeed Majidaie, Nor Idah Ketchut, Fraser Skoreyko, and Seyed Mousa MousaviMirkalaei. "Advanced Reservoir Simulation: A Novel Robust Modelling of Nanoparticles for Improved Oil Recovery." In SPE Annual Technical Conference and Exhibition. SPE, 2021. http://dx.doi.org/10.2118/205927-ms.

Full text
Abstract:
Abstract The potential of nanoparticles, which are classified as advanced fluid material, have been unlocked for improved oil recovery in recent years such as nanoparticles-assisted waterflood process. However, there is no existing commercial reservoir simulation software that could properly model phase behaviour and transport phenomena of nanoparticles. This paper focuses on the development of a novel robust advanced simulation algorithms for nanoparticles that incorporate all the main mechanisms that have been observed for interpreting and predicting performance. The general algorithms were
APA, Harvard, Vancouver, ISO, and other styles
8

Lagat, Christopher, Reem Roufail, Vamegh Rasouli, Brian Evans, and Soren Soe. "Experimental Investigation of Steel Coiled Tubes Performance Under Cyclic Bending." In ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/omae2014-23208.

Full text
Abstract:
Research is currently being undertaken in Australia to develop new drilling technologies for deep mineral exploration. The Deep Exploration Technologies Cooperative Research Centre (DET CRC) has carried out a comprehensive review of the available drilling technologies in the market. Following the study, coiled tube drilling technology has been suggested as a faster and cheaper method than conventional pipe drilling. This is primarily due to its smaller footprint relative to the standard rotary method, ease of unit mobility, less operating personnel, faster rate of penetration, and faster rig u
APA, Harvard, Vancouver, ISO, and other styles
9

Kristiansen, Tron Golder, Laurent Delabroy, Guillermo Andres Obando Palacio, et al. "Implementing a Strategy for Shale as Well Barrier in New Wells." In SPE/IADC International Drilling Conference and Exhibition. SPE, 2021. http://dx.doi.org/10.2118/204075-ms.

Full text
Abstract:
Abstract Shale is an effective barrier material. It has a proven track record of acting as a seal (barrier) for oil and gas reservoirs for millions of years. Shale with high clay content and especially high smectite has low permeability, in the nanodarcy range, compared to standard class G laboratory cement that has permeability in the 10–20 microdarcy range. Weak ductile shales will also have a self-healing behavior should fractures be induced at some point. Shale is approved by regulators to be used as well barriers and part of permanent plug and abandonment (P&A) for oil and gas wells.
APA, Harvard, Vancouver, ISO, and other styles
10

Vasconcellos, C. R. A., H. R. Oliveira, and J. C. Freitas. "A Historical Case in the Bolivia-Brazil Natural Gas Pipeline: Slope on the Curriola River." In 2004 International Pipeline Conference. ASMEDC, 2004. http://dx.doi.org/10.1115/ipc2004-0400.

Full text
Abstract:
The Bolivia-Brazil Natural Gas Pipeline has 2.600 kilometers since Rio Grande City in Bolivia until Canoas City, in south Brazil. The pipeline crosses a lot of types of geological field and difficult topography. The south spread of the pipeline is the most interesting because of its hard topography combined with the variety of geological materials, such as, colluvium deposits and debris flow areas. Curriola River is located at kilometer 408, north part of Parana State. In this area, the pipeline crosses slopes of 40 degrees of inclination. The mounting was only possible making high cuts to ass
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Rock material types"

1

Wadman, Heidi, and Jesse McNinch. Elevation of underlying basement rock, Ogdensburg Harbor, NY. Engineer Research and Development Center (U.S.), 2021. http://dx.doi.org/10.21079/11681/40843.

Full text
Abstract:
Over six linear miles of shallow acoustic reflection geophysical data were collected in an 800 ft by 300 ft survey region at Ogdensburg Harbor, Ogdensburg, NY. To better accommodate modern commercial vessels and expand the harbor’s capacity, the current navigable depth of -19 ft Low Water Depth (LWD) needs to be increased to -28 ft LWD, and an accurate map of the nature of the riverbed material (e.g., unconsolidated sediment, partially indurated glacial till, or bedrock) is required to effectively plan for removal. A total of 28 boreholes were previously collected to map the stratigraphy, and
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!