Trough end 



Trough valley 



Trough wall 



Upland (geomorphology) 



Uplift 



Upthrust 



Valley 



Valley-border surfaces 



Materials Terms 



Ablation till 



Alluvium 



Ash 



Basal till 



Bedrock 



Block field 



Breccia 



Caliche 



Clast 



Clastic 



Colluvium 



Conglomerate 



Debris 



Desert pavement 



Detritus 



Drift (glacial geology) 



Eolian 



Epiclastic 



Erosion pavement 



Facies (stratigraphy) 



Felsenmeer 



Formation (stratigraphy) 



Glacial marine 



Glaciomarine 



Glacial drift 



Glacial outwash 



Glacial till 



Glaciofluvial deposits 



Glaciolacustrine deposits 



Igneous rock 



Intrusive 



Lacustrine deposit 



Lahar 



Lamination (lamina) 



Limestone 



Lithologic 



Valley flat (flood-plain 



land form) 

 Valley floor 

 Valley side (valley wall) 

 Valley train 

 Wash (dry wash) 

 Wave-built terrace 

 Wave-cut platform 

 Wave-cut terrace 

 Wind gap 



Lodgement till 



Loess 



Marl 



Metamorphic rock 



Muck 



Mudstone 



Outcrop 



Paleosol 



Peat 



Pedisediment 



Permafrost 



Plutonic 



Pyroclastic 



Regolith 



Residuum 



Rubble 



Sandstone 



Saprolite 



Scoria 



Scree 



Sediment 



Sedimentary Rock 



Shale 



Siltstone 



Slope alluvium 



Sloughed till 



Stone line 



Talus 



Tephra 



Till (glacial) 



Tuff 



Valley fill 



Valley side alluvium 



Varve 



Volcaniclastic 



Genesis-Process Terms 



Buried 



Bypassed 



Colluvial 



Constructional (geomorph.) 



Creep 



Cryoplanation 



Debris flow (mudflow) 



Deposition 



Erosion 



Erosional (geomorph.) 



Exhumed 



Extrusive 



Flow (mass move) 



Fluvial 



Frost churning 



Frost riving 



Frost shattering 



Glacial 



Glaciation 



Holocene 

 Landslide 

 Lithification 

 Mass wasting (mass 



movement) 

 Nivation 

 Periglacial 

 Pleistocene 

 Pliocene 

 Pluvial lake 

 Quarternary 

 Relict 

 Scour 

 Slump 

 Solifluction 

 Stratified 

 Tertiary 

 Volcanic 

 Weathering 



References 



American Geological Institute. Dictionary of geological 

 terms. Garden City, NY: Anchor Press, Doubleday; 

 1976. 472 p. 



Balster, C. A.; Parson, R. B. Geomorphology and soils, 

 Willamette Valley, Oregon. Corvallis, OR: Oregon 

 State University; Ore. Agri. Exp. Sta. Spec. Report 

 265; 1968. 31 p. 



Bates, R. L.; Jackson, J. A., eds. Glossary of geology: 

 Falls Church, VA: American Geological Institute; 

 1980. 749 p. 



Birkeland, P. W. Pedology, weathering and geomorphic 

 research. New York: Oxford University Press; 1974. 

 285 p. 



Bloom, A. L. Geomorphology. Englewood Cliffs, NJ: 

 Prentice-Hall; 1978. 510 p. 



Bryan, Kirk. Cryopedology, the study of frozen ground 

 and intensive frost action, with suggestions on nomen- 

 clature. Amer. J. Science 244: 622-642; 1946. 



Compton, R. R. Interpreting the earth. New York: 

 Harcourt-Brace-Jovanovich; 1977. 554 p. 



Cook, R. U.; Warren, A. Geomorphology in deserts. 

 Berkeley, CA: University of California Press; 1973. 

 374 p. 



Cowardin, Lewis M.; Carter, Virginia; Golet, Francis C; 

 LaRoe, Edward T. Classification of wetlands and 

 deepwater habitats of the United States. FWS/OBS- 



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