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Sample Type is Sedimentary › Chemical

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IGSN Sample Type Notes Location Number Thin Sections Storage Location
GRD01ZSS0 Banded Iron Formation Well-laminated. Polished surface. Layers of Fe-oxides (hematite and megnetite), shale, and quartz (chert). Microfaulting and crossing quartz veinlets. Original description: magnetite-jasper BIF. 0 Camp Elliott
GRD020GS0 Organic Small fragments of driftwood. Original label: 14 November, 1980. Pacific Ocean 0 Ritter 154, 37 A
GRD022CS0 Carbonate Very small (~1 cm) calcium carbonate fragment (shell?). Original label: 20 November, 1980. Pacific Ocean 0 Ritter 154, 37 B
GRD023WS0 Organic Small (~4x2x1 cm) rounded piece of driftwood. Worm burrows. Higher density than expected. Original label: 25 November, 1980. Pacific Ocean 0 Ritter 154, 37 C
GRD023XS0 Organic Small (~2x2x1 cm) rounded piece of driftwood. Worm burrows. Higher density than expected. Original label: 25 November, 1980. Pacific Ocean 0 Ritter 154, 37 C
GRD023YS0 Organic Very small (~1x1x2 cm) rounded piece of driftwood. Worm burrows. Higher density than expected. Original label: 25 November, 1980. Pacific Ocean 0 Ritter 154, 37 C
GRD026CS0 Fe and Mn Formation Cut sample. ~5x4x7 cm. Purple, fine-grained sample with Fe-stained veins and thick (~3 mm) Fe-Mn crust. High specific gravity. Billet. Billet pieces. Original label: 21 September, 1975. Pacific Ocean 2 Ritter 154, 37 F
GRD026JS0 Fe and Mn Formation Small uncut sample (~3x3x1 cm). Fine-grained red rock. Billet and billet pieces. Original label: 27 October, 1975. Pacific Ocean 1 Ritter 154, 37 F
GRD026SS0 Limestone Five different samples: four are uncut in a plastic bag. One sample is cream-colored and vuggy with calcite filling-in the vugs. Another sample is a very fine-grained blue-green mudstone. Another is pink veins cross-cutting fine-grained white mudstone. The last sample is pink with light pink and brown clasts (volcaniclastic?) - similar to cut piece. The cut sample is not in the bag. It is cut into three pieces, one of which is a billet. White cross-cutting veins and brown clasts in fine-grained pink matrix. Pacific Ocean 1 Ritter 154, 37 F
GRD028NS0 Grainstone Large (~5.5x6.5x10 cm) white piece of carbonate cemented bivalve and coral fragments with patchy Fe-Mn crust. Original label: 12 August, 1968. Indian Ocean 2 Ritter 154, 34 A
GRD028QS0 Carbonate 28 samples ranging in size from ~5.5x2.5x1 to ~0.5x0.5x0.5 cm. White carbonate interior with Fe-Mn crust on sample. No fossils are apparent. Billet. Original label: 12 August, 1968. Indian Ocean 1 Ritter 154, 34 A
GRD02BBS0 Chert Small green chert sample. Unremarkable. Italy 0 Camp Elliott
GRD02BCS0 Dolostone Brown laminated dolostone. Original label: Supratidal/Intratidal dolomite with stromatolites, birds eye, interm. sed. Dolomia Principale. Italy 2 Ritter 154, 21 J
GRD02BES0 Packstone Original label: Trilobite and hyolith burrowed packstone. Uppermost bed of Chambliss Limestone member of the Cararra Formation. California 0 Ritter 154, 21 G
GRD02BFS0 Packstone Original label: Bryozoan Packstone. Ohio 0 Ritter 154, 18 F
GRD02BGS0 Oolitic Limestone Silicic ooids weathering out of sample. See also 110-C83. Original label: Johnnie Formation Oolite. California 0 Ritter 154, 21 C
GRD02BQS0 Chert Purple and red chert with green coloration along fractures. Beautiful conchoidal fracture. 7 thin sectons, all similar to one another with abundant radiolarians. Good teaching sample. Billets. Original label: Chert. Franciscan Formation. California 7 Ritter 154, 18 N
GRD02C1S0 Chert Black chert with some choncoidal fracture. 0 Ritter 154, 22 B
GRD02C5S0 Chalk Small, white, powdery limestone. Poorly consolidated. Cut. France 0 Camp Elliott
GRD02C6S0 Chalk Small, white, powdery limestone. Some Fe-stains. Poorly consolidated. Cut. France 0 Camp Elliott
GRD02C7S0 Chalk Small, white, powdery limestone. Poorly consolidated. Cut. France 0 Camp Elliott
GRD02C8S0 Chalk Small, white, powdery limestone. Some green stains (Cu minerals?). Poorly consolidated. Cut. France 0 Camp Elliott
GRD02C9S0 Chalk Decent-sized, white, powdery limestone. Poorly consolidated. Cut. France 0 Camp Elliott
GRD02CAS0 Chalk Decent-sized sample. Gritty. Yellow with a few grey spots. Minor amount of clear, crystalline calcite. France 0 Camp Elliott
GRD02CCS0 Micritic Limestone Decent-sized, fine-grained grey limestone with faint yellow stains. Unremarkable. Cut. France 0 Camp Elliott
GRD02CDS0 Micritic Limestone Decent-sized, fine grained, dark grey limestone with a small calcite veins. Cut. France 0 Camp Elliott
GRD02CES0 Shell Limestone Small sample of grey limestone with sparse bivalve shells. Not cut. France 0 Camp Elliott
GRD02CFS0 Micritic Limestone Small, dark grey limestone. Unremarkable. France 0 Camp Elliott
GRD02CHS0 Chert Decent-sized sample of yellow-brown chert. The sample is taped together. France 0 Camp Elliott
GRD02CPS0 Micritic Limestone Small sample of grey micrite with a few thin calcite veins. Not cut. France 0 Camp Elliott