Ore Body Knowledge

2019 ◽  
pp. 13-22
Author(s):  
B. Gorain ◽  
V. I. Lakshmanan ◽  
A. Ojaghi
Keyword(s):  
Ore Body ◽  
Body Knowledge

Method to extract bottom and pit wall reserves in small thickness ore body mining

2019 ◽  
Vol 8 ◽  
pp. 14-20
Author(s):  
A.Yu. Cheban ◽  
◽  
G.A. Kursakin ◽  
S.I. Korneeva ◽  
A.A. Fatkulin ◽  
...  
Keyword(s):  
Small Thickness ◽  
Ore Body

GARNET ZONING IN THE BROKEN HILL ORE PACKAGE: EVIDENCE FOR METASOMATIC REACTIONS DURING COOLING OF THE PARTIALLY MELTED BROKEN HILL ORE BODY

2016 ◽  
Author(s):  
Susan M. Swapp ◽  
◽  
B. Ronald Frost ◽  
Melanie A. Barnes ◽  
John Mavrogenes
Keyword(s):  
Garnet Zoning ◽  
Broken Hill ◽  
Ore Body

AUTOMATED ORE BODY MODELING USING MACHINE LEARNING-BASED IMPUTATION AND ALPHA-SHAPE CONSTRUCTION

2020 ◽  
Author(s):  
Hoon Seo ◽  
◽  
Lyujian Lu ◽  
Lyujian Lu ◽  
Thomas Monecke ◽  
...  
Keyword(s):  
Machine Learning ◽  
Alpha Shape ◽  
Ore Body

Situating embodied instruction – proxemics and body knowledge

2021 ◽  
Vol 7 (s4) ◽  
Author(s):  
Darren James Reed
Keyword(s):  
The Body ◽  
Public Display ◽  
Intimate Contact ◽  
Dance Class ◽  
Performance Training ◽  
Playing Field ◽  
Close Analysis ◽  
Spoken Interaction ◽  
Different Levels ◽  
Body Knowledge

Abstract In various ways the movement and experience of the body is instructed by others. This may be in the dance class or on the playing field. In these interactions, one person claims knowledge of the other’s body and rights to instruct how that body functions, moves, and feels. By undertaking a close analysis of embodied and spoken interaction within performance training sessions from a multimodal conversation analytic perspective, this paper will identify one kind of broad sequential trajectory – from intimate contact to public display - that shows how an instructor claims rights over the internal workings of another’s body by traversing different levels of proximity and sensorial modalities.

scholarly journals Knowledge, authority, and positionality in Asian immigrant female faculty teaching diversity classes

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Jung-ah Choi ◽  
Jae Hoon Lim
Keyword(s):  
Multicultural Education ◽  
Professional Knowledge ◽  
Teaching Experience ◽  
Faculty Of Color ◽  
The Body ◽  
Power Dynamics ◽  
Safe Environment ◽  
Faculty Teaching ◽  
The One ◽  
Body Knowledge

AbstractThis paper is a self-reflective narrative of our teaching experience as two immigrant Asian female professors who teach Multicultural Education. Employing collaborative autoethnography (CAE), the study addresses the issues of authority, positionality, and legitimacy of knowledge claims in critical feminist pedagogy. Two research questions guided our inquiry: 1. How does a teacher’s racial positionality play out in exercising professional knowledge, and conversely, 2. How does seemingly neutral professional knowledge become racialized in the discussions of race? Major findings demonstrate the double-edged contradictions in the body/knowledge nexus manifested in our everyday teaching contexts. On the one hand, the bodily dimension of teacher knowledge is de-racialized because of institutional norms and cultures. On the other hand, there are times professional knowledge becomes racialized through the teacher’s body. Understanding the body/knowledge nexus that invites precarious power dynamics in racial discussions and even blatantly dismisses our professional knowledge, we, as an immigrant faculty of color, find it impossible to create a safe environment for participatory, critical discourse. Acknowledging our triple marginality, we put forth the concept of “pedagogy of fear” (Leonardo, Z., & Porter, R. K. (2010). Pedagogy of fear: Toward a Fanonian theory of ‘safety’ in race dialogue. Race, Ethnicity and Education, 13(2), 139–157) which squarely disrupts the idea of a safe environment in race dialog and urges teachers to confront their own/their students’ fear and create a space of teaching vulnerably.

scholarly journals Simulation of deposit parameters in underground development mining

2018 ◽  
Vol 60 ◽  
pp. 00029 ◽  
Author(s):  
Vladimir Golik ◽  
Yuriy Razorenov ◽  
Volodymyr Morkun ◽  
Nataliia Morkun
Keyword(s):  
System Analysis ◽  
Physical Simulation ◽  
Underground Mining ◽  
Theory And Practice ◽  
Ore Body ◽  
Advanced Experience ◽  
Modern Development ◽  
Complex Criterion ◽  
Economic Indices ◽  
Equipment Application

The article is aimed at improving development mining to prepare an ore body for stoping by access ramps to provide comfortable conditions and high technical and economic indices in underground mining. Efficient parameters of underground mining are chosen in the course of simulating data on the mining theory and practice considering ore losses and dilution on the basis of critical analysis of uranium mining enterprises’ activities. The research provides data on geological and engineering zoning of an ore deposit and physical-mechanical properties of ore bearing rocks. The advanced experience is systemized and there is provided system analysis of modern development mining schemes with access ramps (ring, spiral, one-way inclined, central inclined and across the strike). The research recommends schemes of development mining and substantiates their advantages. There are quantitative indices of physical simulation of development variants as to drawn ore quality according to criteria of soil location in ore draw points. The scientific novelty implies developing the criterion of optimality and ranking variants of development mining according to technical-economic and geomechanical indices considering some technological factors as well as the number of stopes operating simultaneously on the level. The study consists in increasing authenticity of development projects through applying complex schemes of access ramps according to the complex criterion of increasing mining depths, equipment application, ventilation and underground mine capacity.

Geomechanical assessment of mining conditions in the Khingansk manganese ore body

2014 ◽  
Vol 50 (1) ◽  
pp. 10-17 ◽  
Author(s):  
I. Yu. Rasskazov ◽  
B. G. Saksin ◽  
M. I. Potapchuk ◽  
V. I. Usikov
Keyword(s):  
Manganese Ore ◽  
Ore Body ◽  
Mining Conditions

Study on the Height of Transmissive Fractured Zone Based on the ANFIS

2012 ◽  
Vol 256-259 ◽  
pp. 2760-2765
Author(s):  
Yun Gang Wang ◽  
Li Zhang
Keyword(s):  
Prediction Accuracy ◽  
Fuzzy Inference ◽  
Surface Displacement ◽  
Inverse Design ◽  
Coal Extraction ◽  
Generalization Capability ◽  
Inference System ◽  
Ore Body ◽  
Neuro Fuzzy ◽  
High Prediction

Adaptive Neuro-Fuzzy Inference System has the merits of high convergence speed, potentially better generalization capability, high prediction accuracy and definiteness of the training results, and it has been applied to inverse design of slopes and surface displacement due to coal extraction. By training and checkout the collected 19 examples of mining under water body, the optimum ANFIS modeling was established. ANFIS-based approach for the forecast of the height of transmissive fractured belt are applied to the extraction the No.Ⅲ ore body at Kangjiawan Zinc-Lead Mine successfully, some important conclusions are of great significance to the factual issues. All the experiences may be of greatly beneficial reference for the similar projects since then.

Exploration geochemistry of surficial media over the high-grade McArthur River uranium deposit, Saskatchewan, Canada

2021 ◽  
Vol 59 (5) ◽  
pp. 913-945
Author(s):  
Steve R. Beyer ◽  
Kurt Kyser ◽  
Tom G. Kotzer ◽  
Kevin Ansdell ◽  
David Quirt
Keyword(s):  
Pinus Banksiana ◽  
Hanging Wall ◽  
Coarse Fraction ◽  
Mining Activity ◽  
Alteration Zone ◽  
High Grade ◽  
Soil Geochemistry ◽  
Mine Site ◽  
Ore Body ◽  
Mine Effluent

ABSTRACT An orientation survey using surficial media was performed over the high-grade McArthur River unconformity-related U deposit (Saskatchewan, Canada) to test whether or not secondary dispersion of elements related to the ore body or alteration zone can be detected at the surface more than 500 m above the deposit. Organic-rich Ah-horizon soils, Fe-rich B-horizon soils, C-horizon soils, tree cores of Jack pine (Pinus banksiana), and glacially dispersed boulders of Manitou Falls Formation sandstone that host the U deposit were collected in four sampling grids near the mine site. Two of the grids overlaid the trace of the P2 fault that hosts the deposit and extends nearly to the surface, one grid overlaid both the P2 fault and one of the high-grade ore bodies (Zone 4), and one grid was located 2.5 km away from the ore body surface trace in the barren hanging wall of the P2 fault. The grid overlying the Zone 4 ore body had the highest proportion of samples with elevated U and low 207Pb/206Pb ratios, the latter indicative of radiogenic Pb from a high-U source, measured in two size fractions of Ah-horizon soils using Na pyrophosphate leach, pine tree cores using total digestion, and sandstone boulders using 2% HNO3 leach. A handful of pathfinder elements, such as As, Co, Ni, and Pb, are variably associated with the U and radiogenic Pb. Sandstone boulders with an assemblage of dravite + kaolinite ± illite, determined using shortwave infrared (SWIR) spectroscopy and matching the alteration mineralogy in the Manitou Falls Formation above the U deposit, were prevalent in the grid above the Zone 4 ore body and in the adjacent grid in the direction of glacial dispersion. A coarse fraction of the B-horizon soils, leached with 5% HNO3, highlighted the grid above the Zone 4 ore body to a lesser extent, whereas HNO3 leaches and aqua regia digests of C-horizon soil separates did not highlight the P2 fault or ore body trace due to influence by parent till mineralogy. Results of environmental monitoring at the mine site, which was active at the time of sampling, suggest that dust containing U, Pb, and radionuclides from waste rock piles and a ventilation shaft could influence A-horizon soil geochemistry near the mine site, and that U and radiogenic Pb anomalies in B- and C-horizon soils near the water table are close to a treated mine effluent discharge point. However, older trees that record elevated U and radiogenic Pb in annual rings that pre-date mining activity, and alteration mineralogy and geochemistry of boulders that are less susceptible to the influences of mining activity, add confidence that the geochemical anomaly in diverse surficial media above the Zone 4 ore body represents secondary dispersion from the underlying U deposit.

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