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The AAPG/Datapages Combined Publications Database

Showing 12,578 Results. Searched 200,616 documents.

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Ascending

Phylogenetic and Taxonomic Problems of Some Tertiary Planktonic Foraminiferal Lineages: ABSTRACT

W. A. Berggren

AAPG Bulletin

... are distinguished from Subbotina and Globorotalia by a strongly spinose wall texture. Two, and possibly three, branches within this lineage appear to lead...

1966

Physical Techniques of Correlation Applied to Upper Ordovician Rocks of Southeastern Indiana: ABSTRACT

Henry H. Gray, George D. Brown, Jr., Jerry A. Lineback

AAPG Bulletin

... defined Tanners Creek Formation can not be distinguished on a strictly lithologic basis, and it is therefore included in the Dillsboro. The Lexington...

1966

Outline of Geology of Niger Delta: ABSTRACT

K. C. Short, A. J. Stauble

AAPG Bulletin

... the delta and each ranges in age from early Tertiary to Recent. A separate member of the Benin Formation is distinguished in the Port Harcourt area...

1966

Paleozoic Age Determinations: ABSTRACT

Arthur J. Boucot, Leon T. Silver

AAPG Bulletin

... faunal zones can be distinguished consistently. Accepting present estimates for the duration of the Paleozoic in absolute time, this could provide...

1967

Educational Programs of American Geological Institute: ABSTRACT

John L. Snyder

AAPG Bulletin

... to visit foreign areas of classic or unusual interest under the guidance of distinguished geologists; 3-day short courses held just before national...

1967

Is There Longshore Drift Convergence on Central Padre Island, Texas?: ABSTRACT

Richard L. Watson

AAPG Bulletin

... sediment. On the basis of the distribution of this shell material, the writer has distinguished a southern province, a northern province, and a transition...

1967

Morphologic Studies of Fusulinids from Lower Permian of West Pakistan: ABSTRACT

Raymond C. Douglass

AAPG Bulletin

... distinct when compared by volution cannot be distinguished at equal radii. The biologic significance of the prolocular diameter needs reconsideration...

1968

Petroleum Reservoirs Among Evaporitic Rocks of Western Canada and Northern United States: ABSTRACT

J. G. C. M. Fuller

AAPG Bulletin

... on the petroleum occurrence. Two general evaporite facies suites can be distinguished: (1) coastal shoal/salt-flat suite, and (2) reef/salt-basin suite. 1...

1968

Grain-Orientation and Paleocurrent Systems in Medina Formation: ABSTRACT

I. P. Martini

AAPG Bulletin

... was nonhomogeneous. Utilizing a trial and error methodology homogeneous subpopulations were distinguished: 1. Subpopulations related to the type...

1968

Jurassic Geology of Alabama and Florida Panhandle: ABSTRACT

Marvin L. Oxley, Edward D. Minihan

AAPG Bulletin

... cannot be distinguished but the upper gray sandstone is considered to be a good exploration target. In Choctaw and northern Washington Counties, typical...

1968

Dune Sediments: Characteristics, Recognition, and Importance: ABSTRACT

Joao Jose Bigarella

AAPG Bulletin

..., this value is somewhat less (20-29°) because of erosion which precedes deposition of the overlying set. Dune cross-beds are distinguished from other similar...

1969

Upper Devonian and Lower Mississippian Sedimentary Record, Western Canada Shelf: ABSTRACT

R. W. MacQueen

AAPG Bulletin

... detritus increases upward. Although colonial corals reappear in the Kinderhookian, the Mississippian lacks organic reefs. The Osagian is distinguished...

1969

Composition, Structure, and Erodability of Subtidal Mats, Abaco, Bahamas: ABSTRACT

A. Conrad Neumann, Conrad D. Gebelein, Terence P. Scoffin

AAPG Bulletin

... secretions plus fine algal filaments. Three mat types were distinguished: a fibrous Cladophoropsis mat, a gelatinous Lyngbya mat, and an aggregated...

1969

Lacustrine Criteria: ABSTRACT

M. Dane Picard, Lee R. High, Jr.

AAPG Bulletin

... environments commonly are distinguished readily by their fauna. Paleontologic differentiation of nonmarine environments is uncertain, however...

1969

Patterns of Calcification in Nacreous Layer of Pelecypods and Gastropods: ABSTRACT

Sherwood W. Wise, Jr.

AAPG Bulletin

.... Three distinct patterns of crystal formation and growth have been distinguished which are taxonomically significant. The pattern developed...

1969

Cyclicity in Upper Tertiary Basin-Margin Deposits of California Coast Ranges: ABSTRACT

Robert J. Stanton, Jr.

AAPG Bulletin

... framework within which genetic rock units can be distinguished at reservoir scale. Positions of shoreline, loci of deltaic deposition, and environmental...

1970

Limitations in Paleocurrent Analysis of Trough Cross-Stratification: ABSTRACT

R. H. Dott, Jr.

AAPG Bulletin

.... In simple cases, trough-sets yield bimodal histograms bisected by trough axes (which must be distinguished from other bimodal causes). Asymmetry...

1970

Biofacies Relations in Buda Limestone (Comanche Series, Cretaceous) of West and Trans-Pecos Texas: Paleogeographic and Paleobathymetric Implications: ABSTRACT

Solmaz Z. Erdogan, Bob F. Perkins

AAPG Bulletin

... east-west trending biofacies bands are distinguished. These facies approximately parallel the Cretaceous shoreline on the north and the axis...

1970

Transition from Fluviatile to Marine Sediments in Coomhola Group (Upper Devonian-Lower Carboniferous) of West Cork, Ireland: ABSTRACT

P. R. R. Gardiner

AAPG Bulletin

... are distinguished: (1) cyclic facies that become finer toward the top, interpreted to be stream deposits; (2) fine facies of rippled siltstone and mudstone, either...

1970

Channel Sequences and Braided-Stream Development in South Canadian River, Hutchinson, Roberts, and Hemphill Counties, Texas: ABSTRACT

L. G. Kessler, II, Fred G. Cooper

AAPG Bulletin

... system) are present in this part of the Canadian River valley, and are distinguished on aerial photographs and in the field by vegetational changes...

1970

Geologic Structure and History of Polar Urals, Pay-Khoy, Novaya Zemlya, and Northern Pechora Depression: ABSTRACT

V. I. Bondarev, B. S. Romanovich, S. V. Cherkesova, V. S. Enokyan

AAPG Bulletin

... the following structural elements are clearly distinguished: (a) the Polar Urals with an adjacent foredeep of the Urals type; and the Pay-Khoy anticlinorium...

1970

Epi-Paleozoic Horst-Anticlinoria and Shelf Troughs of Arctic Margin of Eurasia: ABSTRACT

V. D. Dibner

AAPG Bulletin

... may be distinguished; their presence proves the development of oceanization of the Arctic margin of Eurasia and the origin of the deep-water Arctic...

1970

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