The Architecture of Lower Triassic Aeolian Reservoirs Shaped by Synsedimentary Tectonics and Unconformity Development— Ems Bas

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Late Paleozoic Tectonism in the Central Great Basin Requires Revision of Stratigraphic and Structural Interpretations

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Brief Geologic Summary of the Williston Basin

Wilson M. Laird

North Dakota Geological Society

..., unconformities. These unconformities are as follows: At the base of the Paleozoic section; at the base of the Devonian; at the base...

Abstract: Post-Pennsylvanian Geologic History of Southeastern United States--Economic Geology, by R. L. Bowen; #90978 (1975).

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Subsurface Geology of the Oil Districts of North Central Texas

Jon A. Udden

AAPG Bulletin

..., or are they erratic and irregular. It has been suggested further that there may be unconformities within the Marble Falls limestone, if so what...

Geology of the Late Paleozoic Horseshoe Atoll, West Texas

D. A. Myers, P. T. Stafford, R. J. Burnside

Panhandle (Texas) Geological Society

..., however, have accumulated in a steadily subsiding basn, shifts in sea level having produced the several unconformities found in the reef. The entire...

Basement Rocks of the Northern Santa Ana Mountains

Edwin C. Allison

Pacific Section SEPM

... surfaces and angular unconformities separate the Santiago Peak Volcanics from overlying sedimentary breccias and conglomerates of the Cretaceous (Turonian...

Abstract: Paleodepositional Units in Upper Jurassic Rocks in Gallup-Laguna Area, New Mexico, by M. W. Green; #90979 (1975).

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7. Geologic maps versus other geologic theories -- northern Arkansas [Abstract]

Ernest E. Glick

Oklahoma City Geological Society

... of the Hale Formation, the Cane Hill, is bounded above and below by regional unconformities and that the member grades from nearshore marine deposits...

ABSTRACT: Felsic-intrusion-related Gold Deposits: Diversity and its Significance

Francois Robert and K. Howard Poulsen

Saskatchewan Geological Society

... offolded angular unconformities and of pre- and post-unconformity volcanic rocks. As a result, deposits of both groups are expected to be present...

The Mesozoic of Western Oklahoma

J. Willis Stovall

Tulsa Geological Society

... limestone. Unconformities separate the sediments of each system and a disconformity separates the Comanchean from the Gulf series. Fossils are found...

Abstract: Lisburne Group--Potential Major Objective of Eastern Arctic Slope, Alaska, by K. J. Bird, C. F. Jordan; #90972 (1976).

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Remarks on Subsurface Contouring

Edward Bloesch

AAPG Bulletin

... the importance of subsurface structure, as it varies considerably from the surface structure on account of unconformities and changes in thickness...

Abstract: Petroleum Geology of Eastern Brazilian Continental Margin, by F. Celso-Ponte, J. Reis Fonseca, R. Gamarra Morales; #90972 (1976).

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ABSTRACT: Depositional Systems in the Chicontepec Basin, Central-Eastern Gulf Coast, Mexico

J. Javier Hernández-Mendoza, Abelardo Escamilla-Hernández, Ma. Lidia De la Huerta-Cobos, Domingo Saavedra-Torres

GCAGS Transactions

... sequences of regional scale. Some sandstone packages are truncated by semi-regional unconformities creating stratigraphic traps. The outcrop analysis...

Abstract: Structure and Timing of Orogenic Events, Altos Cuchumatanes Mountains, Western Guatemala, by Douglas D. Lindsey; #90972 (1976).

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Abstract: Structural geometry and evolution of the central and eastern foothills of the Brooks Range, northern Alaska

Wesley K. Wallace

Alaska Geological Society

... by the Torok and Nanushuk Formations. Growth strata and angular unconformities indicate continued folding during this time, although it probably...

Tippecanoe Sequence Overview: Middle Ordovician Series through Lower Devonian Series: Chapter 4: Part I. Illinois Basin: Stratigraphy

Dennis R. Kolata

AAPG Special Volumes

...). In the Illinois basin, the Tippecanoe sequence is divided into two subsequences (Sloss, 1982) that are separated by widespread unconformities. The Tippecanoe I...

Abstract: A Computer-Aided Petrographic Logging Technique for Carbonates

Morad Malek-Aslani

Houston Geological Society Bulletin

... patterns which can help in recognizing shoaling-upward cycles, regressive/transgressive sequences, and unconformities. About 40-50 thin sections representing...

Abstract: Oil Occurrence in Oman: Oil-Bearing Sediments of Gondwana Glaciation

Bruce K. Levell

Houston Geological Society Bulletin

... unconformities beneath regionally extensive tillites. At least three glacial phases can be recognized; an early phase, represented only by erosional remnants...

Abstract: Stratigraphic Framework of the Sydney Basin And The History of the North American / Gondwana Collision

Martin R. Gibling

Atlantic Geology

... in strike-slip activity and subsidence (possibly thermal) which decreased in intensity with time. The hiatus correlates with unconformities...

Pre-Desmoinesian Isopachous and Paleogeologic Studies in Central Mid-Continent Region: Abstract

George G. Huffman

Tulsa Geological Society

... Paleozoic with geosynclinal development in southern Oklahoma. Eustatic changes produced major unconformities and offlap-overlap relations. Strong warping...

Abstract: Structural Elements of Offshore Gulf of Alaska Tertiary Province, by Terry R. Bruns, George Plafker; #90976 (1976).

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Abstract: Sequence Stratigraphy and Sedimentology of a Shelf-Margin Lowstand Wedge in the Deep Wilcox Flexure Trend of South Texas

John W. Snedden

Houston Geological Society Bulletin

..., in descending order. Identification of "standard" sequence-bounding unconformities is hampered by the poor seismic expression of the Wilcox and the structural...

A Time Framework for the Late Albian and Early Cenomanian Strata of Northern Wyoming and Montana

ROBERT J. WEIMER, JOHN D. OBRADOVICH, WILLIAM A. COBBAN, E. A. MEREWETHER

Montana Geological Society

... are possible: (1) slow rates of deposition; (2) unrecognized unconformities; and (3) the 104.4 Ma age may be incorrect. However, limited data...