Results 81 to 90 of about 6,127 (222)

Iowa Pennsylvanian Goniatites

, 1949
In view of the exceptional stratigraphic value of Late Carboniferous ammonoids, it seems worthwhile to bring together the available information in regard to the known occurrences of these fossils in our State.
Miller, A. K.
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A Study of Pennsylvanian Sandstones in the Mayflower Residence Hall Area Iowa City, Iowa, 1980 [PDF]

, 1980
The study area was confined to the Pennsylvanian rocks in the vicinity of the Mayflower Residence Hall of Iowa City, Iowa. The goals of this study were to 1. Map the Pennsylvanian units present in the area and describe their lithologies. 2. Determine the

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Pennsylvanian Geology and Mineral Resources of West Central Indiana [PDF]

, 1951
Indiana Geological Survey Guidebook 5During the period of oil and gas development in the 1950s, many petroleum geologists became interested in Pennsylvanian stratigraphy in Indiana.
Esarey, Ralph E., Wier, Charles E.
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A stem of an arborescent lycopsid Sigillaria with attached rooting organs Stigmaria from the Pennsylvanian of the Donets Basin, eastern Ukraine

Geo&Bio
The macroscopic remains of Carboniferous plants in the Donets Basin are represented by a variety of preservation types, including compressions, impressions, casts, as well as permineralised wood of gymnosperms preserved in alluvial and marine sandstones,
Vitaly Dernov, Halyna Anfimova
doaj   +1 more source

Considerations on the impropriety and inexpediency of renewing the Missouri question / by a Pennsylvanian.

88 p.
Pennsylvanian.
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Neoproterozoic(?) to Pennsylvanian inner-shelf, miogeoclinal strata in Sierra Agua Verde, Sonora, Mexico

Revista Mexicana de Ciencias Geológicas, 2018
Sierra Agua Verde contains one of the most complete and best exposed sections known of inner-shelf miogeoclinal strata in Sonora, Mexico. Over 3,700 m of Neoproterozoic(?), Cambrian, Lower Ordovician, Upper Devonian, Mississippian, and Lower and Middle ...
John H. Stewart, Forrest G. Poole, Anita G. Harris, John E. Repetski, Bruce R. Wardlaw, Bernard L. Mamet, Juan Manuel Morales-Ramirez   +6 more
doaj  

Linking palaeo‐wildfire to depositional environmental and ecological dynamics of an Early–Middle Pennsylvanian fluvial‐tidal transition zone—Palynology and pyrolysis evidence

The Depositional Record
Pennsylvanian time was characterised by widespread transgressive depositional systems that spanned non‐marine to fully marine environments across the North American midcontinent. This study presents new palynological and Rock‐Eval pyrolysis data from 113
Dustin Northrup, Emily Finzel, Pierre Zippi, Kevin Bohacs   +3 more
doaj   +1 more source

Pennsylvanian brachiopods of Nevada

, 1972
Thesis Number: 632.Online access for this thesis was created in part with support from the Institute of Museum and Library Services (IMLS) administered by the Nevada State Library, Archives and Public Records through the Library Services and Technology ...
Rai, Vijai N.
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Closing History of the Late Palaeozoic Oceanic Basins between Tarim and Junggar: Geodynamics and Stratigraphic Problems [PDF]

Учёные записки Казанского университета: Серия Естественные науки, 2016
The history of the Late Palaeozoic convergence and collisions in the South Tian Shan, Tarim, and South Junggar has been considered based on new geological and geochronological data.
Yu.S. Biske, D.V. Alexeiev, A.V. Djenchuraeva, B. Wang   +3 more
doaj  

Geologic Factors Affecting Hydrocarbon Occurrence in Paleovalleys of the Mississippian-Pennsylvanian Unconformity in the Illinois Basin

, 2014
Paleovalleys associated with the Mississippian-Pennsylvanian unconformity have been identified as potential targets for hydrocarbon exploration in the Illinois Basin.
London, Jeremy Taylor
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