Late-night news in a few markets, CBC Television, in Canada that are located in the Eastern and Pacific Time Zones. In contrast, stations in the Central, Mountain, Alaska and Hawaii–Aleutian Time Zones air their final local newscasts of the day at 10:00 p.m. local time, with stations in other time zones following their own schedules. Late local newscasts are typically scheduled in-between a network's prime time and late night programming, allowing for a sizeable lead-in audience for the newscasts. Stations that are affiliated with Fox, The CW, MyNetworkTV, or that are independent stations tend to air their late newscasts at 10:00 p.m.
Aleutian subduction zone rocks, with trace amounts of Paleozoic rocks intruded by Mesozoic batholiths. Most of the Aleutian Islands are composed of sedimentary rocks from granitic and metamorphic rocks from Oligocene-Miocene. There are Quaternary volcanoes on the north of the Aleutian Islands structural axis, which is composed of andesite mostly, mixed with olivine basalt to rhyolite. The eastern Aleutian volcanoes have more silicic magma while the western Aleutian arcs lack the sial magma. The Aleutian Trench formation is associated with the subduction of the Pacific Plate beneath the North American plate. The horizontally-curved shape of the trench is due to the change in