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Mining Essay

  • Submitted by: xlilbabiejulez
  • on September 4, 2012
  • Category: History
  • Length: 1,177 words

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Below is an essay on "Mining" from Anti Essays, your source for research papers, essays, and term paper examples.

There are many materials on this earth that have to be mined in order to retrieve them,
and there are different mining techniques and methods for each individual material. There are
specific methods for mining for gold such as quartz mining and placer mining, methods for coal
mining like underground mining and surface mining, and methods for diamond mining, such as  
open pit and underground mining, coastal and inland alluvial mining, and marine mining. There
are some methods that are better for the environment than others. But no matter what technique
is used, they all result in the retrieval of a precious material that is needed somewhere in the
Gold Mining
There are many different techniques used in gold mining. There are different techniques
for different types of mines. Quartz mines are mines in which gold is found encased in rocks.
Placer mines are commonly used in California, placer mines extract gold that is imbedded inside
of sand, gravel, and clay by mixing soil together with water in a metal pan. The water washes
away the lighter soil and leaves the gold which is much heavier. In the article California Notes,
by Charles Turrill, placer mines are classified by topographical position as well as the methods
used in working them. The topographical classifications are hill claims, in which “pay dirt” (soil
that contains gold) is found in or under a hill, Flat claims, in which “pay dirt” is found on flats or
flat ground, Bench claims in which “pay dirt” is found on hill sides above a river, Gulch claims
which “pay dirt” is found along the bed of a stream going through a canyon, that is without water
for part of the year. Bar claims are claims in which gold is found in sand or gravel in rivers with
low water. River bed claims are claims in which gold is found by turning rivers from their
natural course. Ancient river bed claims are claims in which gold is found in dried up river beds.
There are also operative...

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