GEOLOGY - LANDFORMs [dictionary] ** DR-KNOW : IQ-2k


       ABYSSAL PLAIN - The ocean floor offshore from the continental margin, usually 
           very flat with a slight slope ; INDEX - physical geology - geography 

       CALDERA - A large circular volcanic depression, often originating due to 
           collapse.
           
       CINDER CONE - the most common type of volcano that produces a conical hill close to
           a volcanic vent. The resulting structure is comprised almost entirely of loose 
           volcanic fragments, ash, and pumice; S.A: Strombolian eruption; SYN. SCORIA CONE      
       
       COMPOSITE VOLCANO -  a conical volcano built up by many layers of hardened lava,
           tephra, pumice, and ash ; SYN. STRATOVOLCANO

       CONTINENTAL SHELF - The part of the continental margin from the coastal shore to 
           the continental slope; usually extending to a depth of about 200 meters and 
           with a very slight slope ; 

       FAULT-BLOCK MOUNTAINs - portions of the earth's crust that have been displaced 
           and tilted along high-angle normal faults in tensional stress zones ; 
           eg. Basin and Range Province of Nevada
              
       FOLDED MOUNTAINs - Mountaineous terrain resulting from erosion and dissection of 
           portions  of the earth's crust that has been folded and thickened ; 
           S.A: complex mountains - Alps, Himalaya's, Appalachian's. 
  
       ICE SHEETs - are dome shaped glaciers that flow from a central region.
       
       KAME - A short, steep-sided knoll of glacial sediment ; INDEX - physical geology 
           - geography

       LAVA DOME - a landform that occurs when highly viscous (rhyolite,dacite) lava 
           "erupts" from a volcanic vent and solidifies ; SYN PLUG DOME

       MAAR VOLCANO - a low relief volcanic crater that often creates a "crater lake".
       
       PIPE - the vertical tube or pipe-like intrusions that may feed volcanoes

       PLUG DOME - SYN LAVA DOME
   
       RIFT - A long, narrow crack in the entire thickness of the Earth's crust, which 
           is bounded by normal faults on either side and forms as the crust is pulled 
           apart ; 

       SCORIA CONE - SYN. CINDER CONE
  
       SHIELD - complexly deformed and metamorphosed crystalline basement rocks, 
           generally of Precambrian age ; S.A: craton

       SOLIFLUCTION LOBE - a land feature found on hillsides undergoing solifluction ; 

       STRATOVOLCANO - SYN. COMPOSITE VOLCANO
       
       TIDEWATER GLACIER - a valley glacier that flows all the way ocean.   
       
       TUFF RING - SYN MAAR VOLCANO

       UPWARPED MOUNTAIN - a terrain feature produced by broad arching or upwarping 
           of the crust or of vertical uplift along high angle reverse faults. 
           S.A: Black Hills, SD ; Adirondack Mtns, NY 

       VALLEY GLACIER - originate high in the mountains that flow down a valley ;
           SYN. alpine glacier