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Macrophytes |
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Rooted and floating aquatic plants
which are larger than phyto-plankton |
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| Major
Aquifer |
|
A term previously used by the
Environment Agency to describe aquifers which are of
major strategic importance for the public supply of
groundwater. Major aquifers are now reclassified as
principal aquifers in the Environment Agency’s revised
classification system |
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| Management
Strategy |
|
(CAMS) Wales to determine whether the
water resource situation within a particular catchment
is deemed to be sustainable (‘fully licensed’ or ‘under
licensed’) or unsustainable (‘over licensed’ or ‘over
abstracted’) |
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| Marine
aggregate |
|
Aggregate produced from
naturally-occurring sub-sea mineral deposits |
|
|
|
| Maximum
Instantaneous Charge (MIC) |
|
The Maximum Instantaneous Charge is the
amount of explosive in kilograms which is detonated at a
given moment in time. Quarry blasts are usually made up
of multiple holes with a delay of a few milliseconds
between each one. In this way, the amount of energy
entering the rock at a single moment is reduced, which
lowers the vibration level |
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|
MCA |
|
Mineral
Consultation Area |
|
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| Mine to
Mill |
|
Mine to Mill (MTM) optimization is a
holistic, total systems approach to the reduction of
energy and cost in mining and mineral processing
operations |
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| Mineral
Planning permission |
|
Formal approval sought from a Mineral
Planning Authority, often granted with conditions,
allowing a proposed mineral development to proceed.
Permission may be sought in principle through outline
plans, or be sought in detail through full plans |
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|
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| Mineral
reserve |
|
The economically mineable part of a
Measured and/or Indicated Mineral Resource. It includes
diluting materials and allowances for losses, which may
occur when the material is mined. Appropriate
assessments and studies have been carried out, and
include consideration of and modification by
realistically assumed mining, metallurgical, economic,
marketing, legal, environmental, social and governmental
factors. These assessments demonstrate at the time of
reporting that extraction could reasonably be justified.
Ore Reserves are sub-divided in order of increasing
confidence into Probable Ore Reserves and Proved Ore
Reserves |
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|
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| Mineral
resource |
|
A concentration or occurrence of
material of intrinsic economic interest in or on the
Earth’s crust in such form, quality and quantity that
there are reasonable prospects for eventual economic
extraction. The location, quantity, grade, geological
characteristics and continuity of a Mineral Resource are
known, estimated or interpreted from specific geological
evidence and knowledge. Mineral Resources are
sub-divided, in order of increasing geological
confidence, into Inferred, Indicated and Measured
categories |
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|
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| Minerals
and Waste Development Frameworks (MWDFs) |
|
The equivalent of Local Development
Frameworks with broadly the same requirements, but
focusing specifically on minerals and/or waste planning
issues. Except in Unitary authorities, these are
prepared by County Councils rather than local District
Councils, and therefore cover wider areas |
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|
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| Minerals
Local Plan |
|
Through the minerals local plan a
county council provides the detailed policy framework
for assessing proposals for the working of the minerals
in its area. The aim is to balance the county council's
responsibilities to make provision for the winning and
working of minerals for local, regional and national
needs, with its responsibilities to protect the
environment and the amenity of local residents.
Superseded by Local Development Frameworks |
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|
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| Mining
Waste Directive |
|
The Mining Waste Directive (EU
Directive 2006/21/EC) on the management of waste from
the extractive industries aims to prevent any adverse
impacts associated with waste produced from mining
activities as well as promoting their minimisation,
treatment, recovery and reuse |
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|
|
| Minor
Aquifer |
|
A term previously used by the
Environment Agency to describe aquifers which are of
relatively minor importance for the public supply of
groundwater. Minor aquifers are now generally included
in the definition of secondary aquifers in the
Environment Agency’s revised classification system |
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| MIRO |
|
Mineral Industry Research Organisation |
|
|
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| MIST |
|
Mineral Industry Sustainable Technology
Programme |
|
|
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| Mitigation |
|
Taking actions to reduce adverse
effects (e.g. to reduce the potential impacts of
quarrying on the environment) |
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| Mitigation
Strategy |
|
A planned sequence of actions,
typically designed to provide successively more robust
levels of mitigation as and when specified conditions or
trigger levels are identified through operational
monitoring |
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|
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| Modal
split |
|
The proportion of journeys undertaken
by different forms of transport, for example rail, road,
inland waterways/waterborne transport |
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|
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| Morphology |
|
The science of forms and shapes. See
also geomorphology and hydromorphology |
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|
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| MPA |
|
Mineral Planning Authority, the
planning authority responsible for planning control over
mineral development within its area. The mineral
planning authorities are the statutory bodies (county
councils, metropolitan borough councils, national park
authorities, etc.) which control mineral workings in
their areas. They are given guidelines by the government
in the form of national and regional strategies and
guides |
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|
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| MPG |
|
Minerals Planning Guidance. Documents
issued by the CLG setting out government policy and
advice on minerals planning issues. (Currently being
replaced by Minerals Policy Statements) |
|
|
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| MPS |
|
Minerals Policy Statement published by
CLG. MPSs will eventually replace minerals planning
guidance notes |
|
|
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| MSA |
|
Mineral Safeguarding Area |
|
|
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| Multimodal |
|
A journey involving multiple modes of
transport, for example rail and road |
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|
|
| Multiplier |
|
This is the number of Standard Errors
which must be added to the intercept of the best fit
regression line to give the appropriate percentage
confidence limit. For a single tail test, the multiplier
is 1.645 for the 95% confidence limit, 2.33 for 99% and
3.09 for 99.9%. These values can be obtained from
statistical tables, but care must be taken to use the
values for a single tail test |
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|
|
| (MWDFs) |
|
Waste planning issues. Except in
Unitary authorities, these are prepared by County
Councils rather than local District Councils, and
therefore cover wider areas |
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