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The AAPG/Datapages Combined Publications Database

Showing 34,425 Results. Searched 195,696 documents.

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Organic Carbon ^dgr C13 Values from Quaternary Marine Sequences in Gulf of Mexico: A Reflection of Paleotemperature Changes: ABSTRACT

M. A. Rogers, C. B. Koons

AAPG Bulletin

... standard, whereas colder stages are characterized by -24 to -26°/oo. Piston core samples from the present bottom show similar ^dgr C13 values (-20...

1969

Sediment Dispersion in Northern Channel Island Passages, California: ABSTRACT

James S. Booth

AAPG Bulletin

...Sediment Dispersion in Northern Channel Island Passages, California: ABSTRACT James S. Booth 1970 557 557 54 3. (March) The presence of strong bottom...

1970

Importance of Tidal-Inlet Sedimentation in Barrier-Island Systems: ABSTRACT

John B. Byrnes, Donald J. Colquhoun, Jack W. Pierce

AAPG Bulletin

... deposits, 80 holes were drilled and 178 bottom samples collected from Pamlico Sound and the Atlantic shelf. Grain-size analyses made by settling-tube...

1970

Latest Devonian Conchostracans Along Cordilleran Miogeosyncline, Alberta, Montana, Utah, and Nevada: ABSTRACT

Raymond C. Gutschick, Charles A. Sandberg

AAPG Bulletin

.... A brackish-water environment is suggested for these latest Devonian conchostracans. Optimum conditions apparently were a muddy bottom, restricted...

1970

Diagnostic Primary Structures of Estuarine Sand Bodies: ABSTRACT

Miles O. Hayes, Jon C. Boothroyd, Albert C. Hine, III

AAPG Bulletin

... with large sand waves that may be ebb or flood oriented or bidirectional, depending on relation of bottom topography to current flow. With respect...

1970

Cationic Balance and Early Diagenesis of Glacio-Marine Sediments: ABSTRACT

G. D. Sharma

AAPG Bulletin

... consist predominantly of feldspar, quartz, illite, and chlorite. Kaolinite is not a weathering product in this area. Interstitial waters from bottom grab...

1970

Thin Marine-Nonmarine Alternations in Upper Devonian "Catskill Delta": ABSTRACT

Roger G. Walker, J. C. Harms

AAPG Bulletin

... numerous thin marine-nonmarine alternations. These alternations, commonly as thin as 6 m, are composed from bottom to top of (1) sharp basal surface...

1970

Recent Sedimentation on Southern Bering Shelf: ABSTRACT

Ghanshyam D. Sharma

AAPG Bulletin

... a relatively smooth bottom and gentle slope of about 1:4,000. Nearshore sediment is gravelly, coarse sand which grades to fine sand offshore. In general...

1970

Beach and Nearshore Processes and Morphology in Nontidal Environment: ABSTRACT

Richard A. Davis, Jr., William T. Fox

AAPG Bulletin

... are controlled largely by the slope of the nearshore bottom. These features also show generally comparable morphology in both areas, although they seem...

1971

Barrier Bar Sedimentation in Upper Cretaceous Facies Sequence, Southeastern USA: ABSTRACT

Norman C. Hester

AAPG Bulletin

... top to bottom are: (1) barrier bar (regressive)--moderately sorted, medium-grained sand; Ophiomorpha; low-angle crossbedding; lag concentrates...

1971

Depositional Environment of Mission Canyon (Mississippian) Oil Fields in North-Central North Dakota: ABSTRACT

M. Malek-Aslani

AAPG Bulletin

... marine water circulation was sufficient to support bottom-dwelling and skeletal-producing organic communities. A trend of oolitic bars separated the open...

1971

Preliminary Diagenetic Model of Carbonate Beach Sequences: ABSTRACT

Clyde H. Moore, Jr., Stephen A. Allen

AAPG Bulletin

... zones of the beach can be recognized in the Cretaceous prograding beach sequences and contain, from top to bottom, the following diagenetic features...

1971

Budget of Calcium Carbonate Sedimentation, Southern California Continental Borderland: ABSTRACT

Stephen V. Smith

AAPG Bulletin

... in shallow, hard-bottom areas is comparable to tropical, nonreef production rates. Chemical transfer involves solution (output) of about 200 × 1010 g...

1971

Petrology and Sedimentation of Hackberry Sequence of Southwest Louisiana: ABSTRACT

William R. Paine

AAPG Bulletin

..., and a downdip blanket-type sandstone pattern. Cores in the lower Hackberry show the following graded sequence from bottom to top: (1) a coarse-grained...

1971

Stratigraphy and Depositional Environments of Moenkopi Formation in Southeastern Utah: ABSTRACT

R. C. Blakey

AAPG Bulletin

... of sediment over tidal flats, floodplains, and sea bottom. Horizontally stratified or low-angle cross-stratified sandstone is indicative of beach, bar...

1972

Sedimentology of a Middle Devonian Shale, Erie County, New York: ABSTRACT

R. G. Bray, J. R. Beerbower

AAPG Bulletin

... of approximately 1 mm/yr. The sea bottom was sufficiently oxygenated for benthic life, but the presence of penecontemporaneous sulfide suggests...

1972

Depositional Models from a High-Energy Coast: ABSTRACT

H. E. Clifton, R. E. Hunter, R. L. Phillips

AAPG Bulletin

.... In the most simple depositional system, the nonbarred nearshore, the bottom profile extends smoothly seaward into deeper water. Progradation of the facies...

1972

Tintinnids in Shelf Sediments from Alaska, Oregon, and California: ABSTRACT

R. J. Echols, G. A. Fowler

AAPG Bulletin

... of dispersal by either surface currents or bottom currents. This pattern is particularly noticeable in the southeastern Chukchi Sea and off the coast...

1972

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