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Sample Type is Sedimentary › Sedimentary Structures › Diagenetic Features

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IGSN Sample Type Notes Location Number Thin Sections Storage Location
GRD00RNS0 Compaction Features Lenticular sandy material between two finer-grained, laminated layers. Thin styolites in sandy material in thin section. Original label: Moenkopi formation: NW 1/4 sec 36, R573, T 21</=, Mountain Spring Quad. Nevada 2 Ritter 154, 22 L
GRD00VPS0 Replacement Features encrinal limestone, Lockport Dolomite, Silurian; Thin section contains dolomite rhombs New York 1 Ritter 154, 23 K
GRD00VSS0 Replacement Features Original label: Cherty limestone, Onandaga Limestone, Devonian. New York 1 Ritter 154, 23 K
GRD00VTS0 Replacement Features Siliceous oolite, Gatesburg Fm., Cambrian. Pennsylvania 2 Ritter 154, 18 O
GRD00X8S0 Compaction Features Pink limestone, coarse-grained with stylolite. Shell fragments. 1 Ritter 154, 22 K
GRD00XJS0 Replacement Features dolomite with chert nodules California 1 Ritter 154, 18 O
GRD00XNS0 Nodules Black chert nodules in grey silicified limestone California 1 Ritter 154, 22 J
GRD00ZES0 Replacement Features Mottled red-brown in light grey medium- to coarse-grained dolomite with filled vugs. Original label: Mottled dolomite from Telegraph Canyon member, Nevada Fm. July 1954. Nevada 1 Ritter 154, 23 K
GRD0103S0 Replacement Features Radiolarians replaced with calcite. Original label: Red and green radiolarite, Upper Oxfordian, Klippen Zone, Coll. No. P-25, Sept. 1960. Poland 1 Ritter 154, 18 N
GRD0105S0 Porosity Dark grey, compact limestone containing light spots of crystalline calcite. Original label: Birds eye limestone, Coll. No. 86. New York 1 Ritter 154, 18 Q
GRD010CS0 Recrystallization Original label: Silicious (?) limestone, shown on Swiss Geologic Map (Sheet 4) as Jurassic (Malm) Aptychen kalke, bunte Hornsteine kalk and Radiolarite. Coll. No. G-1. Germany 1 Ritter 154, 18 O
GRD011KS0 Porosity Original label: Limestone core, Baliozori, depth of 4875 feet. Vuggy. Texas 1 Ritter 154, 22 J
GRD0173S0 Nodules Large sample of light brown chert in white diatomite. Original label: Chert. Soft: diatomite, Hard: porcellanite. Post compaction concretion. Monterey Fm., Miocene. California 0 Ritter 154, 2 C
GRD0189S0 Replacement Features Brown laminated silicic limestone. Forams and radiolarians in thin section. Italy 1 Ritter 154, 18 O
GRD018LS0 Replacement Features pink limestone with purple chert lenses Italy 0 Ritter 154, 23 K
GRD018MS0 Nodular Beds purple chert with pink marly limestone Italy 0 Ritter 154, 22 J
GRD018TS0 Nodular Beds pink marly limestone with red chert nodule Italy 1 Ritter 154, 23 K
GRD019NS0 Concretions Black chert nodule in lenticular beds, dolomite rhombs turning into chert. Italy 1 Ritter 154, 18 O
GRD01ABS0 Authigenic Minerals Gray chert; Two generations of dolomite crystals in thin-section. Italy 1 Ritter 154, 18 O
GRD01ACS0 Authigenic Minerals Gray laminated chert; two generations (one colorless and the other is dark) of dolomite crystals in thin-section. Italy 1 Camp Elliott
GRD01ADS0 Authigenic Minerals Green and red laminated chert; radiolarians. Small hand sample. Italy 1 Camp Elliott
GRD01ATS0 Compaction Features Macegino sandstone. Angular quartz grains and mica. Italy 1 Camp Elliott
GRD01B9S0 Replacement Features Red limestone with more abundant radiolarians in the lighter layers. Radiolarians replaced by calcite. Italy 1 Camp Elliott
GRD01BLS0 Nodular Beds Cherty Rosso with radiolarians and occasional shell fragments. Carbonate replacement. Chert nodule. Italy 1 Ritter 154, 22 J
GRD01BOS0 Authigenic Minerals Green mudstone with small gypsum crystals. S. Giovanni Biancho formation. Small hand sample. Italy 0 Camp Elliott
GRD01C2S0 Recrystallization Pink and yellow supratidal facies of the Metallifero Bergamesco formation. Birds eye texture. Italy 0 Ritter 154, 22 J
GRD01C5S0 Nodular Beds Stunia (?) nodular limestone. Upper Anisian. Italy 0 Camp Elliott
GRD01C6S0 Porosity Upper Serla limestone with cavities. Birds eye limestone Italy 0 Camp Elliott
GRD01CWS0 Nodular Beds Buchenstein (in float) with silica-rimmed calcareous nodules. Italy 0 Ritter 154, 22 J
GRD01DCS0 Replacement Features Very cherty limestone and thin red mudstone/marlstone. Chertification. Wavy laminations. Italy 1 Ritter 154, 18 O