| GRD00YXS0 |
Sedimentary
|
missing |
Mexico |
0 |
|
| GRD00YYS0 |
Sedimentary
|
metagraywacke? probably Franciscan, Jurassic |
Mexico |
0 |
|
| GRD00YZS0 |
Greywacke
|
metagraywacke, probably Franciscan, Jurassic |
Mexico |
0 |
|
| GRD00Z0S0 |
Greywacke
|
metagraywacke, probably Franciscan, Jurassic |
Mexico |
0 |
|
| GRD00Z1S0 |
Sedimentary
|
probably Franciscan, Jurassic |
Mexico |
0 |
|
| GRD00Z2S0 |
Siltstone
|
AMISP 20; missing hand sample. thin section in thin section only case in RH154 |
|
1 |
Ritter 154 |
| GRD00Z3S0 |
Limestone
|
limestone Decorah Fm., Ordovician |
St. Louis |
0 |
|
| GRD00Z4S0 |
Packstone
|
limestone Plattin Fm, Ordovician, fossiliferous |
Missouri |
0 |
Ritter 154, 18 F |
| GRD00Z4S1 |
Packstone
|
limestone Plattin Fm, Ordovician, fossiliferous |
Missouri |
0 |
Ritter 154, 21 G |
| GRD00Z5S0 |
Grainstone
|
No hand sample; Thin section is in Thin Section only case in RH 154. |
St. Louis |
1 |
Ritter 154 |
| GRD00Z6S0 |
Micritic Limestone
|
Original label: Black manganiferous calcite radiolarite. Upper Callovian +/- Upper Jurassic. Coll. No. P-24. Sept. 1960. |
Poland |
1 |
Ritter 154, 18 D |
| GRD00Z7S0 |
Shell Limestone
|
Echinoderm fragments in hand sample. The thin sections look slightly different from one another. Original label: Wenlock limestone. Coll. No. 166. |
United Kingdom |
6 |
Ritter 154, 3 C |
| GRD00Z8S0 |
Pisolitic Limestone
|
Good teaching sample. 6 thin sections. Original label: Dry Creek, small O.C. with headwaters. July 1954. |
Nevada |
6 |
Ritter 154, 3 C |
| GRD00Z9S0 |
Siliceous
|
Silicic ooids weathering out of sample. See also S-233. Original label: Johnnie Formation. |
California |
0 |
Ritter 154, 21 B |
| GRD00ZAS0 |
Pelagic Limestone
|
Light gray, coarse-grained bioclastic limestone. Small hand sample. Thin sections identical to one another. Original label: Bedford limestone. Indiana Limestone. |
Indiana |
18 |
Ritter 154, 3 C |
| GRD00ZBS0 |
Micritic Limestone
|
Slabs of dark grey limestone. Original label: Bone Spring Limestone, Permian (Leonard) |
Texas |
1 |
Ritter 154, 21 D |
| GRD00ZCS0 |
Conglomerate
|
Pebble carbonate conglomerate. Original label: Lueders Formation. Few feet below Aa2 limestone of Maybelle series of limes, Texas (?). |
Texas |
1 |
Ritter 154, 17 C |
| GRD00ZDS0 |
Packstone
|
Oquirrh Limestone. Fusilinids. Small sample. |
Utah |
1 |
Ritter 154, 18 F |
| 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 |
| GRD00ZFS0 |
Pisolitic Limestone
|
Dark brown pisolites in tan limestone. Small sample. Original label: Flagstaff limestone (Basal Green River) |
Utah |
1 |
Ritter 154, 18 C |
| GRD00ZGS0 |
Pelagic Limestone
|
Grey, fine-grained lineations, thin-bedded with darker streaks. Original label: Limestone, Lower member Bruffey Formation, Devonian (?). July 1954. |
Nevada |
1 |
Ritter 154, 21 D |
| GRD00ZHS0 |
Micritic Limestone
|
Grey fine-grained limestone with laminated to thin bedding. Small sample. Original label: Bell Canyon Formation Unit 8. |
Texas |
1 |
Ritter 154, 21 D |
| GRD00ZIS0 |
Micritic Limestone
|
Black micrite. Slightly laminated. Six thin sections. Original label: Great Blue Fm. Upper Mississippian. |
Utah |
6 |
Ritter 154, 18 D |
| GRD00ZJS0 |
Dolostone
|
Black fine-grained carbonate with local recrystallization and vein-filling. One of the thin sections is very different from the other seven. Original label: Hansen Creek Formation, middle part. July 1954. |
Nevada |
8 |
Ritter 154, 18 H |
| GRD00ZKS0 |
Shell Limestone
|
No hand sample. Thin section only. Thin section in Thin Section Only case in RH 154. Original label: Mountain limestone (?). Coll. No. 156. |
United Kingdom |
1 |
Ritter 154 |
| GRD00ZLS0 |
Grainstone
|
No hand sample. Thin section only. Thin section in Thin Section Only case in RH 154. Original label: Magnesian limestone. Coll. No. 148. |
United Kingdom |
1 |
Ritter 154 |
| GRD00ZMS0 |
Sedimentary
|
No hand sample. Missing. |
|
1 |
|
| GRD00ZNS0 |
Conglomerate
|
Thin section billet only; Grey pebbles in sandy matrix. |
|
0 |
Ritter 154, 23 D |
| GRD00ZOS0 |
Conglomerate
|
Very large sample. See also sample in 22 M. Original label: Quartz pebble conglomerate, 40 feet above base of Crystal Springs formation, Pahrump Group, Late Precambrian, April 1964. |
California |
0 |
Ritter 154, 17 R |
| GRD00ZPS0 |
Conglomerate
|
Large quartzite pebble in hand sample and thin section. Original label: Shinarump shale-chip conglomerate. Looks like deoxidized shale of the red beds below; Feb 1951, Coll. No. 14. |
Arizona |
1 |
Ritter 154, 17 C |
