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.
Harry Hess, not Harry Potter! Sea-Floor Spreading Harry Hess Sea Vents Sea Vents Pillow Lava forms when magma cools in water. This is evidence of volcanic activity! This shows you the age of the sea floor. The red areas are new rocks and the blue areas are the oldest oceanic rock. Iceland is spreading open on the Mid-Atlantic Ridge!