Science / Geology / Angular Unconformity: An erosional surface that separates rock units of differing dips. The rocks below the surface were deposited, deformed and eroded. The younger rocks above then accumulated upon the erosional surface.
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Business / Real Estate / Rectangular (Government) Survey System: A system established in 1785 by the federal government, providing for surveying and describing land by reference to principal meridians and base lines. MORE
Science / Geology / Rectangular Drainage: A drainage pattern in which stream channels develop within a large-scale network of intersecting joints. This drainage pattern is characterized by right-angle bends in the channels of streams and stre MORE
Business / Finance / Triangular Arbitrage: A measure of the excess return per unit of risk, where excess return is defined as the difference between the portfolio's return and the risk-free rate of return over the same evaluation period and wh MORE
Science / Geology / Unconformity: A surface that separates two strata. It represents an interval of time in which deposition stopped, erosion removed some sediments and rock, and then deposition resumed (see also Angular unconformity MORE
Health / Fitness / Bi-Angular Motion: Started in the health club and now used at home, the Bi-Angular mechanism guides you through the optimum path of motion while applying resistance from two directions at the same time. This smooth, flu MORE