rising mine

rising mine

In naval mine warfare, a mine having positive buoyancy which is released from a sinker by a ship influence or by a timing device. The mine may fire by contact, hydrostatic pressure, or other means.
References in periodicals archive ?
They also protect a number of the nation s drinking water aquifers from pollution from rising mine waters.
Indigenously developed mines include the EM 52 rocket-propelled rising mine, which closely resembles the first Russian "Cluster" [NATO code name] rising mine and is believed to be powerful enough to break the keel of an aircraft carrier; the EM 55 (submarine laid); and the EM 56 rising mine.
The shallow-water Chen-1, -2, -3, and -6 influence mines can be placed for defense of ports and harbors; the T-5 mobile mine can be laid in deeper waters in channels and approaches to ports; and the Soviet PMK-1 and the Chinese-developed Mao-5 rocket rising mines are intended for deeper waters farther from ports and in open-ocean areas and choke points.
China began to develop rocket-propelled and rising mines in 1981 and produced its first prototype in 1989.
Submarines have attracted particular attention as deployment platforms for deepwater rising mines and SLMMs.
Investment, which dropped 7 per cent last year, will gain in this year's first half as scrap sales decline and central banks buy the metal, countering a drop in jewellery demand and rising mine production.
You would think a higher gold price would lead to rising mine production - but that is not happening.
UK Coal say the coal would be sterilised by rising mine water from the old workings, but I have been told that the road within the proposed site is already flooded with mine water.
However, China appears to be providing an advanced naval mine, the EM-52 rising mine, that will significantly enhance Iranian mining capabilities.
The Potland Burn site is the next on the list, and UK Coal are once again claiming that a valuable energy reserve will be sterilised forever, by rising mine water from Ellington mine, which they themselves closed unnecessarily.
Rising mine water is already causing pit falls to re-activate and creating new branches to the geological faults to open up.