In addition, damage to the central nervous system and peripheral nervous system can occur from chronic alcohol abuse. The long-term use of alcohol is capable of damaging nearly every organ and system in the body. The developing adolescent brain is particularly vulnerable to the toxic effects of alcohol.
TYPES OF CONTINENTAL MARGINS. Continental margins are not all alike, but they are not all different either. There are two basic types. Each one has different characteristics, which are a function of the processes involved in the formation of the two types of margins. The âclassicâ margin is based on the U.S. East Coast example.
â¢ Pacific = Active Margin geologic activity 11 The ocean floor can be classified as (a) Continental Margins âthe submerged outer edge of a continent (b) Ocean Basin â the deep seafloor beyond the continental margin There are two types of continental Margins (a)passive or trailing margins: margin of continent that moves away from spreading center â Atlantic-style margins (also Artic Ocean, Antarctica and Indian Ocean). Very little volcanic or earthquake activity is associated with passive margins. (b) active or leading margins: plate boundary located along a continental margin â ocean trenches where there is subduction of oceanic lithosphere â narrow, steep, with volcanic mountains (West Coast of the Americas). Active margins are the site of volcanic and earthquake activity. 12 Continental Margins