普通地质学(英文)
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SEDIMENTARY ARCHIVES
Sedimentary Structures Geopetal Structures or Which Way is UP? Raindrop Impressions
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SEDIMENTARY ARCHIVES
Interpretation of Sedimentary Rocks
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SEDIMENTARY ARCHIVES
Sedimentary Structures
Cross-bedding or Cross-stratification
Tabular or
Planar
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SEDIMENTARY ARCHIVES
Sedimentary Structures
Cross-bedding or Cross-stratification
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SEDIMENTARY ARCHIVES
Classification of Sedimentary Rocks
"Systems of classification are not hatracks, objectively presented to us by nature. They are dynamic theories developed to express particular views..." Stephen Jay Gould
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SEDIMENTARY ARCHIVES
Sedimentary Structures Geopetal Structures or Which Way is UP? Planar Cross-beds
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SEDIMENTARY ARCHIVES
Sedimentary Structures Geopetal Structures or Which Way is UP? Trough Cross-beds
Sedimentary Structures Geopetal Structures or Which Way is UP? Load structures
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SEDIMENTARY ARCHIVES
Sedimentary Structures Geopetal Structures or Which Way is UP? Mudcracks
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SEDIMENTARY ARCHIVES
Classification of Sedimentary Rocks
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SEDIMENTARY ARCHIVES
Classification of Sedimentary Rocks
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SEDIMENTARY ARCHIVES
Classification of Sedimentary Rocks
Trough
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SEDIMENTARY ARCHIVES
Baidu NhomakorabeaSedimentary Structures
Graded beds
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SEDIMENTARY ARCHIVES
Sedimentary Structures
Sole marks
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SEDIMENTARY ARCHIVES
Sedimentary Structures
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SEDIMENTARY ARCHIVES
Sedimentary Structures Geopetal Structures or Which Way is UP? Oscillation ripples
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SEDIMENTARY ARCHIVES
Sedimentary Structures Geopetal Structures or Which Way is UP? Tool marks
TEXTURE
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SEDIMENTARY ARCHIVES
Classification of Sedimentary Rocks
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SEDIMENTARY ARCHIVES
Classification of Sedimentary Rocks
Provide information about conditions in and near the site of deposition
Such as:
source area from composition amount of transport erosion
Qtz vs. Feldspar (clay and iron compounds) vs Ferromagnesians Immature vs mature
Flute casts
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SEDIMENTARY ARCHIVES
Sedimentary Structures
Tool marks
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SEDIMENTARY ARCHIVES
Sedimentary Structures
Flame Structures
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SEDIMENTARY ARCHIVES
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SEDIMENTARY ARCHIVES
Sedimentary Structures Geopetal Structures or Which Way is UP? Fossils
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SEDIMENTARY ARCHIVES
Sedimentary Structures Geopetal Structures or Which Way is UP? Fossils
SEDIMENTARY ARCHIVES
Sedimentary Structures
Cross-bedding or Cross-stratification
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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