| GRD010KS0 |
Graded Beds
|
Black limestone with large white calcite vein. Cut surface shows light and dark beds. Original label: Tonoloway limestone. Showing cut and fill and graded bedding. Coll. No. P.T. 400c. May 1951. |
Pennsylvania |
1 |
Ritter 154, 18 Q |
| GRD010LS0 |
Shell Limestone
|
Small hand sample. Original label: Calpionella limestone, Lower Tithonian, September 1960, Coll. No. P-23 a,b. |
Poland |
1 |
Camp Elliott |
| GRD010MS0 |
Pelagic Limestone
|
Foram ooze. Original label: Spotted marl. Middle Cretaceous. September 1960. Coll. No. P-19. |
Poland |
1 |
Ritter 154, 18 D |
| GRD010NS0 |
Packstone
|
Tan limestone with light grey disk-shaped fossils. Original label: Limestone with Operculina, Amiranian O. Co. Geologist, Coll. No. 46, 1937-38. |
Iran |
1 |
Camp Elliott |
| GRD010OS0 |
Shell Limestone
|
Large purple hand sample with lighter spots, likely crinoid pieces. Nice sample. Original label: Crinoidal limestone with red bands, in Famennian bioherm., December 1960. |
Belgium |
1 |
Ritter 154, 18 E |
| GRD010PS0 |
Boundstone
|
Hand sample composed of white coral. Montastrea annularis (?). Original label: Key Largo limestone, Coral Reef rock, Montastrea annularis, Coll. No. 229, April 1951. |
Florida |
1 |
Ritter 154, 18 G |
| GRD010QS0 |
Grainstone
|
Very small samples. Original label: Orbitolina limestone, July 15, 1950. |
Tunisia |
1 |
Ritter 154, 21 H |
| GRD010RS0 |
Grainstone
|
Sparry calcite spots in green/gray limestone. Some crinoid pieces have internal structure. Original label: Crinoidal limestone from bioherm in Famennian, December 1960. Missing sample |
Belgium |
1 |
Camp Elliott |
| GRD010SS0 |
Pisolitic Limestone
|
Pisolites becoming finer upward. Small grey sample. Original label: Pisolitic dolomite, Beck Spring formation, Pahrump Group, float in wash, April 1964. |
California |
1 |
Ritter 154, 18 C |
| GRD010TS0 |
Dolostone
|
Small hand sample. Clasts in more fine-grain matrix. Original label: Dolomite Intrasperudite, McColley formation, S. Pinyonensis zone, Clasts of dolomitized pelmicrite in fossiliferous dolomitized quartzose pelsparite. |
Nevada |
1 |
Ritter 154, 21 J |
| GRD010US0 |
Pelletal Limestone
|
Original label: Dolomite, Pelletal and Skeletal. McColley formation. Pellets, echinoderm fragments, geopetal structures. |
Nevada |
1 |
Ritter 154, 18 B |
| GRD010VS0 |
Pelagic Limestone
|
Replaced shell fragments. Matrix supported. Original label: Limestone core, 9900 feet, Lower K (?) |
Texas |
1 |
Ritter 154, 18 D |
| GRD010WS0 |
Dolostone
|
Medium-sized pisoids composed of dark grey dolomite. W64-19a is distinct from W64-19. Original label: Pisolite dolomite. Beck Spring Fm., Pahrump Group. Late Precambrian. Float from wash. April 1964. |
California |
1 |
Ritter 154, 3 C |
| GRD010XS0 |
Shell Limestone
|
Dark curved streaks (shells?) in tan limestone. Original label: Purbeck limestone, Coll. No. 129. |
United Kingdom |
1 |
Ritter 154, 18 E |
| GRD010YS0 |
Micritic Limestone
|
Vug with prismatic calcite crystals in hand sample. Original label: Lithographic limestone, Fredericksburg Group. |
Texas |
1 |
Ritter 154, 18 D |
| GRD010ZS0 |
Grainstone
|
Large coral in hand sample. Nice thin section. Original label: Graham formation, Cisco Group, Gunsight limestone member, USGS Bull. 1096A, Fossil location 16017. |
Texas |
1 |
Ritter 154, 18 G |
| GRD0110S0 |
Siltstone
|
Original label: Quartzose dolomite, dolomitic siltstone, laminated, Crystal Spring formation, Pahrump Group, April 1964. |
California |
1 |
Ritter 154, 17 K |
| GRD0111S0 |
Pelagic Limestone
|
Original label: Seewerkalk, Globotruncana limestone, calcaspheres. |
Switzerland |
1 |
Ritter 154, 18 D |
| GRD0112S0 |
Breccia
|
Brecciated. Tan and brown limestone pebbles in crystalline matrix. Matrix supported. Original label: Marathon limestone. |
Texas |
1 |
Ritter 154, 17 B |
| GRD0113S0 |
Dolostone
|
Original label: Pellet dolomite and quartz - pellet dolomite (2 layers), Union Mountain member of the Nevada formation. |
Nevada |
1 |
Ritter 154, 18 H |
| GRD0114S0 |
Grainstone
|
White limestone with black (Fe?) spots. Original label: Anacacho limestone. |
Texas |
1 |
Ritter 154, 21 H |
| GRD0115S0 |
Packstone
|
Very beautiful sample and thin section. Well-preserved graptolites. Original label: Limestone with graptolites, Latonic formation, Eden Group, Cinninnatian. |
Ohio |
1 |
Ritter 154, 18 F |
| GRD0116S0 |
Grainstone
|
Original label: Limestone. Beach rock. Recent. 7/1959. |
Bahamas |
1 |
Ritter 154, 18 G |
| GRD0117S0 |
Oolitic Limestone
|
Oolitic dolomite. Nice internal structure in ooids both in hand sample and thin section. Original label: Pisolitic dolomite, Beck Springs formation, Pahrump Group, April 1964, Float from wash. |
California |
1 |
Ritter 154, 3 C |
| GRD0118S0 |
Dolostone
|
Original label: Cherty dolomite, Crystal Springs formation, Pahrump Group, April 1964. |
California |
1 |
Ritter 154, 18 H |
| GRD0119S0 |
Dolostone
|
Original label: Laminated dolomite, Beck Springs formation, Pahrump Group, April 1964. |
California |
1 |
Ritter 154, 21 J |
| GRD011AS0 |
Dolostone
|
Original label: Laminated cherty dolomite, Beck Springs formation, Pahrump Group, April 1964. |
California |
1 |
Ritter 154, 21 J |
| GRD011BS0 |
Sandstone
|
Small hand-sample. Original label: quartzose dolomitic crossbedded sandstone, interbedded with W64-6 and W64-5, Crystal Springs formation, Pahrump Group. |
California |
1 |
Ritter 154, 23 I |
| GRD011CS0 |
Dolostone
|
Some iron staining. Original label: Dolomite, pellet, med. crystalline, McCalley formation, few quartz grains and some replacement quartz. |
Nevada |
1 |
Ritter 154, 21 J |
| GRD011DS0 |
Dolostone
|
Dolomite, mottled, Telegraph Canyon member of Nevada formation, Simonson (original label) No hand sample; thin-section only. |
Nevada |
1 |
Ritter 154, 21 J |
