noun
Etymology: rift (I)
: an elongated valley formed by the depression of a block of the earth's crust between two faults or fault zones of approximately parallel strike : a graben having surface expression
noun
Etymology: rift (I)
: an elongated valley formed by the depression of a block of the earth's crust between two faults or fault zones of approximately parallel strike : a graben having surface expression
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012