X1011582836-00083-20276</DOCNO> Slide 1 North America &amp; other Plate Tectonics Eastern edge is passive margin - subsiding under the weight of sediments coming from the appalachians and rockies yields thick sequences of sedimentary rocks Western edge is active margin - Farallon Plate is subducting under North America - Yielding cascade range in the north west At times certain areas are compressive whereas others are extensional - northwest vs basin and range Volcanics are pervassive in the western US and in many other areas in the World - western SA, Himalaya, India, Africa, Caribbean, Central America First Prev Next Last Durbin F'99
(other Plate Tectonics Eastern edge; is; passive margin - subsiding; L:under the weight of sediments) (Volcanics; are; pervassive in the western US and in many other areas in the World - western SA, Himalaya, India, Africa, Caribbean, Central America First Prev) (sediments; coming; from the appalachians and rockies) (certain areas; are; compressive; T:times) (others; are; extensional - northwest vs basin and range)
other Plate Tectonics Eastern edge Volcanics sediments certain areas others
is are coming are are
passive margin - subsiding L:under the weight of sediments
pervassive in the western US and in many other areas in the World - western SA, Himalaya, India, Africa, Caribbean, Central America First Prev
from the appalachians and rockies
compressive T:times
extensional - northwest vs basin and range