Sedimentary Structures - Part 2

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75.(Photo by DH) Convolute laminations caused by shear stress aid by liquefaction? East Coast Rd., Barbados

76.(Photo by DH) Compressional fold at toe of penecontemporaneous slump.

77.(Photo by DH) Convolute bedding

78.(Photo by DH) Deformed cross-stratification

79.(Photo by DH) Overturned cross-stratification

80.(Photo by DH) Overturned cross-stratification

81.(Photo by DH) Dewatering structure, CO

82.(Photo by DH) Modern example of liquefaction induced deformation, Acq River, Brazil

83.(Photo by DH) Internal structure of #82

84.(Photo by DH) Minor fault possibly caused by slumping, Middendorf Formation, Moore County, NC

85.(Photo by DH) Clastic dike

86.(Photo by DH) Dewatering clastic dike, CA

87.(Photo by DH) Clastic dike cutting gravel and weathered granite, Lilesville, NC

88.(Photo by DH) Sand volcano?, France

89.(Photo by DH) Polygonal structure nearby #88, a plan view of #88?

90.(Photo by DH) Dish structure

91.(Photo by Ron Perkins) Box core of organic bedding, FL

92.(Photo by DH) Precambrian algal growth, South Africa

93.(Photo by DH) Reptile track in Triassic shale

94.(Photo by DH) Reptile track in sandstone, Colorado Plateau

95.(Photo by DH) Trail in sandstone

96.(Photo by DH) Trilobite resting mark, East TN

97.(Photo by DH) Shrimp (Callianassa?) burrow, Intercoastal Waterway, near Myrtle Beach, SC

98.(Photo by DH) Burrow, Eocene(?) near Aiken, SC

99.(Photo by DH) Intensive burrowing, Scotland

100.(Photo by DH) Burrows concentrated along a zone of slow deposition

101.(Photo by DH) Thalassinoides burrows at Mid-Eocene over Lower Eocene unconformity, GA

102.(Photo by DH) Intensive burrowing, Scotland

103.(Photo by DH) Sediment homogenized by burrowing, Peedee Formation, NC

104.(Photo by DH) Soil processes destroyed bedding, probably Barnwell County, SC

105.(Photo by DH) Close-up of B-horizon in #104

106.(Photo by DH) Burrows formed along bedding plane

107.(Photo by DH) Boring in limestone, England

108.(Photo by Ron Perkins) Thin-section of micro-boring endolithics, modern example

109.(Photo by Ron Perkins) Same as #108 but Silurian example

110.(Photo by DH) Stylolites in marble, probably east TN.

111.(Photo by DH) Stylolites in Ordovician rock, east TN

112.(Photo by DH) Stylolites in Ordovician oolite, east TN

113.(Photo by DH) Boudin structure (pressure brecciation?) in limestone, east TN.

114.(Photo by DH) Brecciation, Newman Limestone, KY

115.(Photo by DH) Corrosion zone in limestone, New Bern, NC

116.(Photo by DH) Vugs

117.(Photo by DH) Flint nodules in limestone, KY

118.(Photo by DH) Load cast flint nodule in limestone, KY

119.(Photo by DH) Nodular chert in limestone, KY

120.(Photo by DH) Phosphate nodules

121.(Photo by Ron Perkins) Thin-section spherulites

122.(Photo by DH) Sand crystals

123.(Photo by DH) Large concretion in Devonian shale, VA

124.(Photo by DH) Concretion formed around leaf, Mazon Creek, IL

125.(Photo by DH) Concreations

126.(Photo by DH) Bedding planes pass through concretions, Devonian, VA

127.(Photo by DH) Cat's eye concretion shows original thickness of bedding, KY

128.(Photo by DH) Hollow concretion

129.(Photo by DH) Hollow ferruginous concretions, Middendorf Formation, Chesterfield County, SC

130.(Photo by DH) More concretions from SC

131.(Photo by DH) Geode

132.(Photo by DH) Quartz crystals in geode

133.(Photo by DH) Geode formed in cavity of fossil

134.(Photo by DH) Geodes in limestone, KY

135.(Photo by DH) Septarian concretion, Devonian shale, VA

136.(Photo by DH) Cone-in-cone structures (shatter cones), northwest Indiana impact feature