1) An excessive burden 2) Ground 3) Land 4) Load with excessive weight 5) Pile too much on 6) Soil 7) To overload or overtax
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https://www.crosswordclues.com/clue/overburden
1) Swamp
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https://www.crosswordclues.com/clue/overburden
In mining and in archaeology, overburden (also called waste or spoil) is the material that lies above an area of economic or scientific interest. In mining, it is most commonly the rock, soil, and ecosystem that lies above a coal seam or ore body. Overburden is distinct from tailings, the material that remains after economically valuable component...
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http://en.wikipedia.org/wiki/Overburden
• (n.) The waste which overlies good stone in a quarry. • (v. t.) To load with too great weight or too much care, etc.
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http://thinkexist.com/dictionary/meaning/overburden/
(from the article `coal mining`) Contour mining is commonly practiced where a coal seam outcrops in rolling or hilly terrain. Basically, the method consists of removing the ... ...passes, more sediments are piled on top of the surface layer, and it becomes slowly buried. Accordingly, the pressure to which the layer is ... Overburden ...
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http://www.britannica.com/eb/a-z/o/41
Layers of soil and rock covering a coal seam. Overburden is removed prior to surface mining and replaced after the coal is taken from the seam.
Found on
http://www.coaleducation.org/glossary.htm
The overburden is the rock that lies on top of a fossil.
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http://www.enchantedlearning.com/subjects/dinosaurs/glossary/
The loose soil, silt, sand, gravel or other unconsolidated material overlying bedrock, either transported or formed in place.
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http://www.encyclo.co.uk/local/22047
Soil and other material lying on top of aggregate deposits, which must be removed before the aggregate can be won.
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http://www.encyclo.co.uk/visitor-contributions.php
Soils located over the bedrock layer.
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http://www.encyclo.co.uk/visitor-contributions.php
is the material that lies over the mineral deposit. It consists of top soil, sub-soil and any over-lying rocks.
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http://www.encyclo.co.uk/visitor-contributions.php
the strata of rock that overlie the stratum of interest in drilling.
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http://www.encyclo.co.uk/visitor-contributions.php
O'ver·bur`den noun The waste which overlies good stone in a quarry.
Raymond. Found on
http://www.encyclo.co.uk/webster/O/49
O`ver·bur'den transitive verb To load with too great weight or too much care, etc.
Sir P. Sidney. Found on
http://www.encyclo.co.uk/webster/O/49
Waste material overlying ore in an open-pit mine.
Found on
http://www.southernperu.com/ENG/intope/Pages/PGGlossary.aspx
[
n] - the surface soil that must be moved away to get at coal seams and mineral deposits 2. [v] - load with excessive weight 3. [v] - burden with too much work or responsibility
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http://www.webdictionary.co.uk/definition.php?query=overburden
Rock and soil cleared away before mining.
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https://www.encyclo.co.uk/local/20094
noun the surface soil that must be moved away to get at coal seams and mineral deposits
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https://www.encyclo.co.uk/local/20974
The alluvium and rock that must be removed in order to expose an ore deposit.
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https://www.encyclo.co.uk/local/22733
to load with too great a burden; overload: He was overburdened with cares.
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https://www.infoplease.com/dictionary/overburden
No exact match found.
