Rising magma cooling underground which cuts vertically across exisiting rock Dikes and sills of Keweenawan time arose among the older Rove Formation which runs from Gunflint Lake east to Superior (our BWCA Region V) More resistant to erosion and glaciation than the surrounding rock, they delineate the long and narrow lakes which are the hallmark of this region
see dyke. Variant of dyke. another spelling of dyke. Bank, usually of earth, constructed to control or confine water. Dikes were purely defensive at first but later became a means to acquire polders (tracts of land reclaimed from a body of water through the construction of offshore dikes roughly parallel to the shoreline). After a dike is built, the polder is drained by pumping out the water. Where the land surface is above low-tide level, tide gates discharge water into the sea at low tide and automatically close to prevent reentry of seawater at high tide. To reclaim lands that are below low-tide level, the water must be pumped over the dikes. The most notable example of polder construction is the system adjacent to Holland's IJsselmeer (Zuider Zee) barrier dam. If The Netherlands were to lose the protection of its dikes, its most densely populated portion would be inundated by the sea and rivers
(1) (Engineering) An embankment to confine or control water, especially one built along the banks of a river to prevent overflow of lowlands; a levee (2) A low wall that can act as a barrier to prevent a spill from spreading (3) (Geology) A tabular body of igneous (formed by volcanic action) rock that cuts across the structure of adjacent rocks or cuts adjacent rocks
An artificial watercourse (ditch) Also, a bank usually of earth constructed to control or confine water (levee); raised causeway
A tabular body of igneous rock that cuts across the structure of adjacent rocks or cuts massive rocks A massive wall or embankment built around a low-lying area to prevent flooding (Bates & Jackson 1984)
Bank of earth or stone used to form a barrier, frequently and confusingly interchanged with levee A dike restrains water within an area that normally is flooded See levee