Browsing by Author "Lewis, Ronald"

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Analysis of Mudrock Lithofacies and Hydrocarbon-Source Potential of the Middle Ordovician Athens Shale, Alabama Fold and Thrust Belt

Daymond, Phillip (2017-04-18)

Lithologic, petrologic, and geochemical studies were performed on the Ordovician Athens Shale, with a focus on a 140-ft-thick core section recovered near Calera, Alabama, supplemented by observations of limited outcrop ...

Biotic Composition and Taphonomy of an Upper Cretaceous Konservat-Lagerstätte: The Ingersoll Shale, Eutaw Formation, Eastern Alabama

Knight, Terrell (2007-08-15)

The Ingersoll shale is a thin (<1m), laterally restricted clay lens within the Upper Cretaceous (Santonian) Eutaw Formation, Russell County, eastern Alabama. The clay lens represents abandoned tidal creek fill within an ...

Distribution of encrusting foraminifera at Cat Island, Bahamas: Implications for foraminiferal assemblages in the geologic record

Smith, Christopher (2015-06-05)

Benthic foraminifera that are cemented by calcium carbonate or are otherwise firmly fixed to hard surfaces are commonly known as encrusting foraminifera. Very few studies focus on the use of encrusting foraminifera as ...

Genesis and Taphonomy of a Crinoid Lagerstatte in the Upper Pennsylvanian Barnsdall Formation of Northeastern Oklahoma

Thomka, James (2010-10-20)

A 50-cm mudstone interval within the Upper Pennsylvanian Barnsdall Formation, exposed near Copan, Washington County, northeastern Oklahoma, records prodeltaic distal shelf sedimentation in an oxygenated, low energy setting. ...

Phosphatic Concretions and Ichnofossil Preservation in a Marine Lagerstätte, Ripley Formation, Central Alabama

Hall, Jonathan (2006-05-15)

Phosphate concretions are common in the Upper Cretaceous Ripley Formation exposed along Dry Cedar Creek, Lowndes County, Alabama. Sedimentologic and ichnologic studies of concretions and host sediments were undertaken to ...

Relationships between large benthic foraminifera and their seagrass habitats, San Salvador, Bahamas

Buchan, Olivia (2006-05-15)

Vegetation beds are important in the ecology and depositional history of platform carbonates. The vegetation itself, frequently dominated by the seagrass Thalassia, has a low preservation potential, but plants and benthic ...

Stratigraphic and Paleoenvironmental Context of the Ingersoll Shale, An Upper Cretaceous Conservation Lagerstatte, Eutaw Formation, Eastern Alabama

Bingham, Patrick (2007-08-15)

The Ingersoll shale, a thin (<1 m) clay-dominated lens within the Upper Cretaceous Eutaw Formation exposed in Russell County, Alabama, contains an exceptionally well-preserved, primarily terrestrial biota that includes a ...

Stratigraphy and Sedimentary Petrology of the Hillbank and Yalbac Formations, Corozal Basin, Belize

Gill, Karena (2017-04-30)

The informal Hillbank and Yalbac formations are predominantly carbonate units that are found only in the subsurface of the Corozal basin in northern Belize. The 75 to 700 m-thick Hillbank and the 200 to 3000 m-thick Yalbac ...