L: laboratory analysis laccolith lagoon lake lake level Lake Mead lake water lakebed land land bridge land tie landfill landform landmass landscape landscape evolution landslide landslide risk Larderello laser Lassen Late Quaternary lateral flow lateral moraine lateral spread latitude Laurentian Upland lava lava flow lava lake lava tube lave cave layered crystal structure layering leachate leaching lead-207 Leaning Tower of Pisa least-squares least-squares fit left lateral left-lateral leg legend levee library catalog life life history lifelines limestone limestone cave limonite linear structure liquefaction lithification lithology lithosphere livestock loadstone loamy topsoil location loch locked fault loess log forms Loma Prieta Loma Prieta Earthquake long-shore current longitude longshore drift Los Angeles Los Angeles Basin Los Gatos Louis Agassi Louisiana Love wave low frequency electromagnetic wave lower elevation lowland luster Lynn Sykes
U.S. Department of the Interior | U.S. Geological Survey URL: http://walrus.wr.usgs.gov/infobank/programs/html/school/L_keywords.html Page Contact: InfoBank staff Page Last Modified: Tue Dec 16 06:27:35 PST 2008 (wcs)