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Welcome to the new Datapages Archives

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The AAPG/Datapages Combined Publications Database

Showing 17,425 Results. Searched 190,731 documents.

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Statistical Analysis of Flysch Sequence Regarded as Series of Point Events: ABSTRACT

Richard B. McCammon

AAPG Bulletin

... is similar to that of earthquakes, if the log thickness of the coarse layer is treated as earthquake magnitude and the linear thickness of the fine layer...

1973

Disconformities in Rocks of Early Late Cretaceous Age in Southeastern Wyoming and North-Central Colorado: ABSTRACT

E. A. Merewether, G. A. Izett

AAPG Bulletin

..., Wyoming, where the magnitude of the lower hiatus is great st, to eastern Larimer County, Colorado, where the magnitude is least, the age of the rocks...

1974

Vertical Net Sandstone Determination for Isopach Mapping of Hydrocarbon Reservoirs: GEOLOGIC NOTES

L. Allaud

AAPG Bulletin

... proposed by d'Ocagne (1921). Using the notations defined by both authors, enter nomogram 1 (Fig. 2) with the sum and difference of true-dip magnitude...

1976

Dipmeter Interpretation of Cherry Canyon Reservoir Sandstones, Delaware Basin, New Mexico: ABSTRACT

Sandra Phillips

AAPG Bulletin

... change in the trend of dip magnitude and dip azimuth across the unconformity, marked by higher dips (6 to 9°) above the unconformity in the channel-fill...

1982

Dipmeter Interpretation of Turbidite-Channel Reservoirs, Delaware Basin, New Mexico: ABSTRACT

Sandra Phillips

AAPG Bulletin

... which marks the base of the Indian Draw channel exhibits a characteristic dip pattern consisting of an abrupt change in the trend of dip magnitude...

1982

Identification of Short-Term Changes in Sediment Depositional Rates--Importance in Environmental Analysis and Impact: ABSTRACT

Wayne C. Isphording, F. Dewayne Imsand, Gregory W. Isphording

AAPG Bulletin

... and depositional rates in adjacent estuaries, bays, and lagoons. The magnitude of such changes, however, is commonly ignored because of a general belief...

1984

Potential Geologic Hazards of North Aleutian Shelf, Bristol Bay, Alaska: ABSTRACT

Bruce F. Molnia, William C. Schwab

AAPG Bulletin

... a history of at least 10 shallow earthquakes, including a 1971 back-arc event with a Richter magnitude of 5.2. The largest event impacting the entire...

1985

Historical Seismicity of Texas--A Summary: ABSTRACT

Scott D. Davis, W. D. Pennington, S. M. Carlson

AAPG Bulletin

... of the historical seismicity of Texas revealed more than 100 earthquakes of magnitude 3 or greater from February 1847 to December 1984. Of these, 82...

1985

Quantitative Evaluation of Fractures on Monkshood Anticline, a Detachment Fold in the Foothills of  Western Canada

William R. Jamison

AAPG Bulletin

.... An order of magnitude variation is found in fracture densities across this fold, and over two orders of magnitude variation occur in mean fracture...

1997

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