1. (Photo by DH) Weathered
Triassic fanglomerate, Dan River Basin, VA (bedding is vertical)
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1. (Photo by DH) Weathered
Triassic fanglomerate, Dan River Basin, VA (bedding is vertical)
2. (Photo by DH) Horizontal
bedding, Newman Limestone, KY
3. (Photo by DH) Laminated
bedding (varves?), Teays Valley, WV
4. (Photo by DH) Planar
bedding (ripples at top), Brazos River TX Point Bar
5. (Photo by DH) Sharp
bedding boundaries, Borden Formation, KY
6. (Photo by DH) Gradational
bedding boundaries
7. (Photo by DH) X-bedding
tabular sets and cosets, tangential lower boundary, Middendorf Fm, NC
8. (Photo by DH) As above on
a smaller scale.
9. (Photo by DH) Wedge sets,
large scale, Navajo Sandstone, UT
10.(Photo by DH) Wedge
X-bedding, CA
11.(Photo by DH) Tabular and
wedge Sets, Navajo SS, UT
12.(Photo by DH) Plan view
trough x-bedding, CO
13.(Photo by DH) X-section
trough x-bedding, AZ
14.(Photo by DH) Herringbone
x-bedding
15.(Photo by DH) Herringbone
x-bedding, Borrego Pass, Sandstone, NM
16.(Photo by DH) Herringbone
x-bedding, WY
17.(Photo by DH) Sigmodial
x-bedding
18.(Photo by DH) Hummocky
cross-stratification (HCS), Powder River Basin, WY
19.(Photo by DH) Closer view
of above
20.(Photo by DH) More obscure
HCS
21.(Photo by DH) HCS (?) in
core
22.(Photo by DH) Chain of
cuspate small 3-D ripples, Back Sound, NC
23.(Photo by DH) Parallel and
2-D wind ripples, Bogue Bank, NC
24.(Photo by DH) Wind ripples
close-up, Bogue Bank, NC
25.(Photo by DH) Cuspate in
phase wind ripples or caused by rain water? Kill Devil Hills, NC
26.(Photo by DH) Internal
bedding of ripples (?)
27.(Photo by DH) Ripple
cross-lamination, Powder River Basin, WY
28.(Photo by DH) Climbing
ripple cross-laminations
29.(Photo by DH) Climbing
ripples, Brazos River, TX point bar
30.(Photo by DH) Angle of
climb greater than stoss angle, Brazos River point bar
31.(Photo by DH) Climbing
ripples, Annot Formation, France
32.(Photo by DH Vortex or
post-vortex ripples, Back Sound, NC
33.(Photo by DH) Wave ripples
of Cretaceous age
34.(Photo by DH) Oscillatory
flow ripples with interference ripples in center, Back Sound, NC
35.(Photo by DH) Current
ripples, Back Sound, NC
36. Cape Fear River (NC)
dunes, form index 30
37.(Photo by DH)
Large 2-D ripples, Back Sound, NC
38.(Photo by DH)
Note slip-face angle < angle of repose, Back Sound, NC
39.(Photo by DH)
No evidence of x-stratification in trench, Back Sound, NC
40.(Photo by DH)
Very large scale tabular x-stratification of wind origin, Bryce Canyon National
Park, UT
41.(Photo from Landsat)
Longitudinal dunes in Algeria would produce structure as in previous image.
42.(Photo by DH)
Cross-stratification is a localized directional feature. Middendorf Formation,
NC
43.(Photo by DH)
Cross-stratification doesn't give any good indication of original size of dune.
Harold Redding for scale.
44.(Photo by DH)
Ripples on a dune slip-face, Shackleford Banks, NC
45.(Photo by DH)
Avalanche layer on slip-face, Shackleford Banks, NC
46.(Photo by DH)
Climbing wind ripple structures (pin-stripes)
47.(Photo by DH)
Another example of pin-striping
48.(Photo by DH)
Thick layers are grain-flow, thin layers are grain-fall
49.(Photo by DH)
Laminated layers deposited parallel to depositional surface, Brazos point-bar,
TX
50.(Photo by DH)
Planar lamination grades upward into x-stratification
51.(Photo by DH)
Raindrop impressions in mud, Chesterfield County, SC
52.(Photo by DH)
Raindrop impressions on mudcracks, New Bern, NC
53.(Photo by DH)
Bubble hole on beach
54.(Photo by DH)
Modern mudcracks, Harleyville, SC
55.(Photo by DH)
Giant mudcracks from settling pond, Aberdeen, NC
56.(Photo by DH)
Mudcracks, Clinch SS, Catawba Mountain, VA
57.(Photo by DH)
Ripple marks and mudcracks, Clinch SS, Catawba Mountain, VA
58.(Photo by DH)
Mudcracks in Carboniferous dolostone, Scotland
59.(Photo by DH)
Mudcracks in Carolina Slate, NC
60.(Photo by DH)
Synaeresis cracks
61.(Photo by DH)
Parting lineation in Devonian flagstone.
62.(Photo by DH)
Flutes (scour mark). Current moved toward penny.
63.(Photo by DH)
Flutes and other current direction indicators, Annot Formation, France
64.(Photo by DH)
Groves casts, Annot Formation, France
65.(Photo by George Lynts)
Prod marks associated with flutes and grooves
66.(Photo by DH)
Load casts, Borden Formation, KY
67.(Photo by DH
Load casts overlying shale
68.(Photo by DH)
Flame structure, Cape Fear Formation, Cape Fear River, NC
69.(Photo by DH)
Flame structure, Great Smoky Mountains, NC
70.(Photo by DH)
Flame structure
71.
Load casts with prod mark (NW of nickle)
72.(Photo by DH) Ball and
pillow structure, near Golden, CO
73.(Photo by DH) Ball and
pillow structure forming pseudo-boulders (think lava-light)
74.(Photo by DH) More load
structures