Page:The Journal of geology (IA journalofgeology11893univers).pdf/327
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REVIEWS.
749
| HALL'S REPORT, 1858. | WHITE'S REPORT, 1870. | CALVIN & KEYES REPORT, 1892. | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Quaternary. | Alluvium. | Post Tertiary. | Alluvium. | Quaternary. | Alluvium. | |||||||||||||
| Drift. | Bluff. | Loess. | ||||||||||||||||
| Drift. | Altered. | Drift. | Upper till. | |||||||||||||||
| Lower till. | ||||||||||||||||||
| Upper Cretaceous. | Niobrara. | Inoceramus and possibly gypsum beds, and Nishnabotna sandstone. | ||||||||||||||||
| Cretaceous. | Presence in Iowa asserted, but rocks not described. |
Lower Cretaceous. | Inoceramus beds. | |||||||||||||||
| Woodbury sandstone and shale. | Fort Benton. | Woodbury shale, and possibly the Nishnabotna sandstone | ||||||||||||||||
| Given on Owen's authority. | Nishnabotna Sandstone. | Dakota. | ||||||||||||||||
| Permian ?—Gypsum beds. | ||||||||||||||||||
| Carboniferous. | Upper Carboniferous or Pennsylvania Series. |
Missouri Stage. | ||||||||||||||||
| Carboniferous. | Coal Measures. | Carboniferous. | Coal Measures. | Upper. | Des Moines Stage. | |||||||||||||
| Carboniferous limestone. |
Kaskaskia (not present). | Middle. | Lower Carboniferous or Mississippian. |
Kaskaskia (or Chester) (not present). | ||||||||||||||
| Ferruginous sandstone (not present). | Lower. | |||||||||||||||||
| St. Louis limestone. | Sub-Carboniferous. | Chester (not present). | St. Louis. | |||||||||||||||
| Warsaw. | St. Louis. | Augusta | Keokuk. | |||||||||||||||
| Keokuk. | Keokuk. | Burlington. | ||||||||||||||||
| Burlington. | Burlington. | Kinderhook. | Chouteau lm. | |||||||||||||||
| Kinderhook. | Hannibal sh. | |||||||||||||||||
| Louisiana lm. | ||||||||||||||||||
| Devonian. | Chemung group. | Devonian. | Lime Creek shale. | |||||||||||||||
| Hamilton group. | Devonian—Hamilton limestone and shale. | Montpelier sandstone. | ||||||||||||||||
| Upper Helderberg limestone. | Cedar Valley limestone. | |||||||||||||||||
| Independence shale. | ||||||||||||||||||
| Upper Silurian. | Le Claire limestone. | Upper Silurian—Niagara limestone. | Upper Silurian. | Le Claire limestone. | ||||||||||||||
| Niagara limestone. | Niagara limestone. | |||||||||||||||||
| Lower Silurian. | Hudson River group. | Lower Silurian. | Maquoketa. | |||||||||||||||
| Galena limestone. | Lower Silurian. | Maquoketa. | Galena. | |||||||||||||||
| Trenton limestone. | Galena. | Trenton. | ||||||||||||||||
| Black River and Birdseye limestone. | Trenton. | St. Peters. | ||||||||||||||||
| St. Peter's sandstone. | St. Peters. | Oneota. | ||||||||||||||||
| Calciferous sandstone. | Lower Magnesian. | |||||||||||||||||
| Potsdam sandstone. | Potsdam. | Upper Cambrian—St. Croix. | ||||||||||||||||
| Huronian—Sioux Quartzite—1866. | Huronian?—Sioux quartzite. | Algonkian—Sioux quartzite. | ||||||||||||||||