Mining

Shale can be turned into slate through metamorphism, which involves applying heat and pressure to the shale over time. This process causes the minerals in the shale to recrystallize and align, creating the distinct layers, smooth texture, and foliation characteristic of slate.

Gold can be found at varying depths in the Earth's crust, typically ranging from a few meters to a few kilometers deep. Commercially viable gold deposits are usually found at depths of hundreds of meters to a few kilometers below the surface, where geological conditions have concentrated the gold into mineable ore bodies.

Iron ore is commonly transported using trains, trucks, and ships. Trains are often used for long-distance transportation from mining sites to processing plants or ports. Trucks are typically used for shorter distances within mining sites or between processing facilities. Ships are used for bulk transportation of iron ore across large bodies of water to reach international markets.

The difference between surface run-off and subsurface run -off is that surface run-off is that when it is precipitation the water goes on the ground like a river and lake. The water that goes on the top of the ground is going to the oceans. The subsurface run-off is that when it is preciptation the water

Crusher dust is a byproduct of crushing stone or rock. It is used as a compacting material and is often mixed with cement to create a solid surface for pathways, driveways, and other construction projects. It can also be used as a base material for landscaping projects.

The circulatory system is responsible for transporting oxygen, nutrients, hormones, and waste products throughout the body. It consists of the heart, blood vessels, and blood. The system plays a crucial role in maintaining homeostasis and supporting overall bodily functions.

spatial mining is the extraction of knowledge,spatial relationships and intresting measures that are not explicitly stored in spatial database where as temporal mining is the extraction of knowledge about occurence of an event or values whether they follow cylic,random,seasonal variation etc...and other intrestion time related patterns.

Shale turns into slate through a process called "low-grade metamorphism." Under heat and pressure, the clay minerals in shale recrystallize to form very fine-grained mica minerals, giving slate its characteristic layering and foliation. This metamorphic process occurs at temperatures between 200-450°C and pressures of 200-300 megapascals.

Define "recover." If you mean as, say, farmland or for some similar use, one needs to remember that the mineral-rich and fertile layer on which vegetation grows is a thin shell on the earth, mostly created by decomposing matter and similar deposits. Strip mining removes this thin shell to get to the minerals below. Since it's truly difficult to rebuild a suitably fertile topsoil, it's therefore difficult to recover strip-mining activities.

Talc has been used by humans for thousands of years and its discovery dates back to ancient civilizations. It was used by Egyptian and Greek cultures for various purposes including cosmetics, medicines, and sculptures.

The streak test involves studying the color of the powdered form of a mineral. This is typically done by rubbing the mineral against an unglazed porcelain tile to see the color of the streak left behind. This test can help identify minerals with different colors in their powdered form compared to their natural form.

There are numerous salt mines around the world, with major ones located in countries such as the United States, Russia, China, and Germany. It is challenging to give an exact number as new salt mines are continually being discovered and developed.

This is a back garden approach for smallish quantities - I think the clay produced will be quite basic but mouldable

You need to have a clay rich soil / heavy clay soil. Dig down a few feet to find the better stuff. If you put the lumps of soil in a bucket with lots of water, the clay particles should go into suspension when it has all melted in.

The organic bits float on the top and the rocks and grains sink to the bottom.

Carefully pour off the clay rich water into another vessel and leave it somewhere warm / covered to evaporate the water off - It is possible to speed it up by putting somewhere warmer. When it is at the right consistency, I put it in a plastic bag and it kept moist and usable for over a year.

Ground water mining refers to the excessive extraction of groundwater beyond the rate of recharge, leading to depletion of the aquifer. This can have detrimental effects on water availability, setting the stage for water scarcity and ecosystem impacts.

TReasure Hunters

Yes, iron ore is a natural mineral that is mined from the earth. It is a source of iron, which is extracted and processed to create various iron and steel products for industrial and commercial use.

Yes, magnetic iron ore, such as magnetite, was used as a primitive compass because it has magnetic properties that align with the Earth's magnetic field. When suspended or placed on a floating object, the iron ore would align itself in the north-south direction, indicating the cardinal directions. This provided early navigators with a basic way to orient themselves.

It is difficult to provide an exact figure, but experts estimate that there are over 800 billion metric tons of iron ore reserves left in the world. Advances in technology and exploration may lead to the discovery of more reserves in the future.

Iron ore can be separated from rock through a process known as magnetic separation. This involves using magnets to attract the iron ore away from the surrounding rock material. The iron ore can then be further processed to extract the iron metal.

A long-tom is a type of sluice box used in gold mining. It separates gold particles from gravel using running water and riffles. Miners can manually shovel gravel into the long-tom and then agitate the contents to separate gold from waste material.

Pink crystals found in granite are usually orthoclase feldspar. These crystals give granite its pink to reddish color and are one of the main components of the rock.

Slate forms under high temperatures and pressure, typically around 200 to 700 degrees Celsius. These conditions cause the original clay minerals in shale to recrystallize into a low-grade metamorphic rock known as slate.

The ground temperature can vary depending on location, depth, and time of year. In general, the ground temperature tends to be cooler at deeper depths due to the insulating properties of the soil. The average ground temperature at the surface ranges from around 50 to 60 degrees Fahrenheit.

Half of the world's emeralds come from Colombia, particularly from regions such as Muzo, Chivor, and Coscuez. Colombian emeralds are known for their exceptional color and clarity, making them highly sought after in the gemstone market.

Geologists can find oil at varying depths, usually ranging from a few thousand to tens of thousands of feet below the earth's surface. The depth at which oil is found depends on the geology of the location and the specific oil reservoir being targeted. Deep offshore drilling can reach depths of over 30,000 feet to access oil reserves.