Bigint Data Type The Bigint data type represents an integer value. It can be stored in 8 bytes. Formula 2^(n-1) is the formula of the maximum value of a Bigint data type. In the preceding formula N is the size of the data type.
2016-10-28T08:31:05-04:00. Pillow lava is evidence of sea-floor spreading because the lava comes up out of cracks at the mid-ocean ridge and becomes newly formed rock. The farther away you get from the mid-ocean ridge, the older the rock is.
The sea floor spreads apart at divergent boundaries. In the ocean, divergent boundaries are also called spreading centers.Mid-ocean ridges mark these sites where the ocean floor is spreadingapart. As the ridges continue to widen, a gap called a forms. Here molten material rises to build new crust.he records are the same on either side of the ridge.As scientists continued to map the ocean floor, they found morerecords of these reversals. By dating the rock, scientists had furtherevidence of plate movement. The youngest rock records the mostrecent reversal, which happened only about 760,000 years ago.