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SEDIMENTARY ARCHIVES. Terrestrial or Continental Environments. SEDIMENTARY ARCHIVES. Terrestrial or Continental Environments. Fluvial. SEDIMENTARY ARCHIVES. Continental Environments Fluvial. Silt, Sand, Clay. Few fossils. Point Bar. SEDIMENTARY ARCHIVES.
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SEDIMENTARY ARCHIVES Terrestrial or Continental Environments
SEDIMENTARY ARCHIVES Terrestrial or Continental Environments Fluvial
SEDIMENTARY ARCHIVES Continental Environments Fluvial Silt, Sand, Clay Few fossils Point Bar
SEDIMENTARY ARCHIVES Terrestrial or Continental Environments Sediments highly variable, depends on energy of river
SEDIMENTARY ARCHIVES Terrestrial or Continental Environments Alluvial fans
SEDIMENTARY ARCHIVES Terrestrial or Continental Environments Lakes or Lacustrine
SEDIMENTARY ARCHIVES Terrestrial or Continental Environments Lakes or Lacustrine
SEDIMENTARY ARCHIVES Terrestrial or Continental Environments Glacial
SEDIMENTARY ARCHIVES Terrestrial or Continental Environments Glacial
SEDIMENTARY ARCHIVES Terrestrial or Continental Environments Glacial Outwash Till
SEDIMENTARY ARCHIVES Terrestrial or Continental Environments Eolian
SEDIMENTARY ARCHIVES Terrestrial or Continental Environments Eolian
SEDIMENTARY ARCHIVES Terrestrial or Continental Environments Eolian Wind can move sediment Sand size or smaller Very well sorted
SEDIMENTARY ARCHIVES Sedimentary Structures Formed during or shortly after deposition Prior to lithification Can be used to interpret environments "The question is not what you look at, but what you see" Henry David Thoreau November 1830
SEDIMENTARY ARCHIVES Sedimentary Structures Mudcracks
SEDIMENTARY ARCHIVES Sedimentary Structures
SEDIMENTARY ARCHIVES Sedimentary Structures
SEDIMENTARY ARCHIVES Sedimentary Structures Ripples Indicate direction Uni-directional = asymmetrical or current Bi-directional = symmetrical or oscillation Multi-directional = interference Found in shallow marine water and streams
SEDIMENTARY ARCHIVES Sedimentary Structures Ripples Oscillation Ripples Up direction?
SEDIMENTARY ARCHIVES Sedimentary Structures Ripples Current Ripples
SEDIMENTARY ARCHIVES Sedimentary Structures
SEDIMENTARY ARCHIVES Sedimentary Structures Ripples Interference Ripples
SEDIMENTARY ARCHIVES Sedimentary Structures Cross-bedding or Cross-stratification
SEDIMENTARY ARCHIVES Sedimentary Structures Cross-bedding or Cross-stratification Beds in which one set is inclined to others Advance of delta or dunes Current dominated environment Wind or water Slope of cross-bed can indicates current or prevailing wind direction
SEDIMENTARY ARCHIVES Sedimentary Structures Cross-bedding or Cross-stratification Tabular or Planar
SEDIMENTARY ARCHIVES Sedimentary Structures Cross-bedding or Cross-stratification Trough
SEDIMENTARY ARCHIVES Sedimentary Structures Graded beds