Ore minerals can be found through modern mining technology using geophysical techniques to detect magnetic, gravity, and sonic responses from rock. There are two main mining methods: surface mining and underground mining. Surface mining involves removing overburden to access near-surface ore deposits using open-pit, strip, or dredging techniques. Underground mining requires tunneling below the surface and is more dangerous than surface mining since explosives are used. The mineral processing process extracts and refines minerals from ore through steps like sampling, analysis, comminution (crushing and grinding), concentration to separate valuables from waste, and dewatering to produce usable materials.
Ore Minerals (How it is found, mined, and processed for human use)Simple ABbieC
Department of Education | Senior High School
Topic: Ore Minerals (How it is found, mined, and processed for human use)
Learning Competency:
Earth Science (for STEM): Describe how ore minerals are found, mined, and processed for human use. (S11ES-Ic-d-8)
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Ore Minerals (How it is found, mined, and processed for human use)Simple ABbieC
Department of Education | Senior High School
Topic: Ore Minerals (How it is found, mined, and processed for human use)
Learning Competency:
Earth Science (for STEM): Describe how ore minerals are found, mined, and processed for human use. (S11ES-Ic-d-8)
Please LIKE / FOLLOW and SHARE my other social media accounts.
Facebook: https://www.facebook.com/Simple-ABbieC-131584525051378/
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Youtube:
http://tiny.cc/SimpleABbieC
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Slideshare:
https://www.slideshare.net/AbbieMahinay
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Blogger:
https://simpleabbiec.blogspot.com/?m=1
As a Toastmaster International member I was required to do a 7-minute presentation. Due to my significant experience auditing processes at mines. I chose to present how mining is done. The room lit up with vast amount of mining information provided in easy 7 minutes.
Chapter-1
Introduction
1.0 BACKGROUND
Content in Time New Roman, Size 12
Fig. 1.1: Effect of fragmentation on the cost of drilling, blasting, loading and hauling.[Source: Wyllie and Mah(2005)]
Drilling and blasting costs can account for up to 25% of a project's overall production cost. Despite this, the planning and execution of a blast is rarely given the attention it deserves in our country. Drilling and blasting executed properly can significantly contribute to profitability of the mine, thus these parameters must be optimized.
The term optimization refers to attaining the best possible result, i.e., achieving the maximum or minimum value of the operating parameters. Blasting optimization is influenced by a number of complex aspects such as the rock, explosive, initiation, drill-hole characteristics, and their layout. Drilling optimization is mainly influenced by the rock characteristics, target production and drilling equipment characteristics. The current research is a step toward building a rudimentary model with simple procedures that the mining industry may use to improve blasthole drilling performance.
As a Toastmaster International member I was required to do a 7-minute presentation. Due to my significant experience auditing processes at mines. I chose to present how mining is done. The room lit up with vast amount of mining information provided in easy 7 minutes.
Chapter-1
Introduction
1.0 BACKGROUND
Content in Time New Roman, Size 12
Fig. 1.1: Effect of fragmentation on the cost of drilling, blasting, loading and hauling.[Source: Wyllie and Mah(2005)]
Drilling and blasting costs can account for up to 25% of a project's overall production cost. Despite this, the planning and execution of a blast is rarely given the attention it deserves in our country. Drilling and blasting executed properly can significantly contribute to profitability of the mine, thus these parameters must be optimized.
The term optimization refers to attaining the best possible result, i.e., achieving the maximum or minimum value of the operating parameters. Blasting optimization is influenced by a number of complex aspects such as the rock, explosive, initiation, drill-hole characteristics, and their layout. Drilling optimization is mainly influenced by the rock characteristics, target production and drilling equipment characteristics. The current research is a step toward building a rudimentary model with simple procedures that the mining industry may use to improve blasthole drilling performance.
A brief information about the SCOP protein database used in bioinformatics.
The Structural Classification of Proteins (SCOP) database is a comprehensive and authoritative resource for the structural and evolutionary relationships of proteins. It provides a detailed and curated classification of protein structures, grouping them into families, superfamilies, and folds based on their structural and sequence similarities.
Observation of Io’s Resurfacing via Plume Deposition Using Ground-based Adapt...Sérgio Sacani
Since volcanic activity was first discovered on Io from Voyager images in 1979, changes
on Io’s surface have been monitored from both spacecraft and ground-based telescopes.
Here, we present the highest spatial resolution images of Io ever obtained from a groundbased telescope. These images, acquired by the SHARK-VIS instrument on the Large
Binocular Telescope, show evidence of a major resurfacing event on Io’s trailing hemisphere. When compared to the most recent spacecraft images, the SHARK-VIS images
show that a plume deposit from a powerful eruption at Pillan Patera has covered part
of the long-lived Pele plume deposit. Although this type of resurfacing event may be common on Io, few have been detected due to the rarity of spacecraft visits and the previously low spatial resolution available from Earth-based telescopes. The SHARK-VIS instrument ushers in a new era of high resolution imaging of Io’s surface using adaptive
optics at visible wavelengths.
THE IMPORTANCE OF MARTIAN ATMOSPHERE SAMPLE RETURN.Sérgio Sacani
The return of a sample of near-surface atmosphere from Mars would facilitate answers to several first-order science questions surrounding the formation and evolution of the planet. One of the important aspects of terrestrial planet formation in general is the role that primary atmospheres played in influencing the chemistry and structure of the planets and their antecedents. Studies of the martian atmosphere can be used to investigate the role of a primary atmosphere in its history. Atmosphere samples would also inform our understanding of the near-surface chemistry of the planet, and ultimately the prospects for life. High-precision isotopic analyses of constituent gases are needed to address these questions, requiring that the analyses are made on returned samples rather than in situ.
2. Objectives
describe how ore
minerals are found;
identify the different
mining method; and
explain the different steps in
mineral processing
1.
2.
3.
3. Mining is the process of mineral extraction from a rock
seam or ore –a natural rock or sediment containing one
or more valuable mineral. The minerals can range from
precious metals and iron to gemstones and quartz.
Modern mining technology uses geophysical techniques
that involve measuring the magnetic, gravity and sonic
responses of rocks above and around a prospective
mineral ore body.
Mining
5. – is used to extract ore minerals near the surface of the
earth. The soil and rocks that covered the ores are removed
through blasting. Blasting is a controlled use of explosives
and gas exposure to break rocks.
Surface Mining
• Open-pit mining
• Strip mining
• Dredging
examples of surface mining are:
6. - This is the most common
type of surface mining. Open
pit means a big hole (or pit) in
the ground. The pit in mine is
created by blasting with
explosives and drilling. It is
used to mine gravel and sand
and even rock.
Open-pit mining
7. - Removal of soil and rock
(overburden) above a layer
or seam (particularly coal),
followed by the removal of
the exposed mineral. This
mining method is used
for coal, phosphates, clays,
and tar mining.
Strip mining
8. - Process of mining
materials from the
bottom of a body of
water, including rivers,
lakes, and oceans.
Dredging
9.
10.
11. Underground mining
–is used to extract the rocks, minerals and other precious
stories that can be found beneath the earth’s surface. In
underground mining, miners need to create a tunnel so
they can reach the ore minerals. This kind of mining is
more expensive and dangerous as compared to surface
mining because miners need to use explosive devices to
remove the minerals from the rocks that cover them
12. • Mineral processing is the process of extracting
minerals from the ore,refining them, and
preparing these minerals for use. The primary
steps involved in processing minerals include:
1 . Sampling
2. Analysis
3. Comminution
4. Concentration
5. Dewatering
13. Analysis
-is the removal of a portion which represents a
whole needed for the analysis of this material.
Sampling
-is important to evaluate the valuable component in
an ore. This includes chemical, mineral and particle
size analysis.
14. Concentration
Comminution
-is the process where the valuable components of the
ore are separated through crushing and grinding. This
process begins by crushing the ores to a particular size
and finishes it by grinding the ores into a powder form.
-involves the separation of the valuable minerals from
the raw materials
15. Dewatering
– uses the concentration to convert it to usable
minerals. - involve filtration and sedimentation of
the suspension and drying of the solid materials
harvested from this suspension.
