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The AAPG/Datapages Combined Publications Database

Showing 583 Results. Searched 191,007 documents.

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A Bahamian Faecal-Pellet Sediment

Louis S. Kornicker, Edward G. Purdy

Journal of Sedimentary Research (SEPM)

... of the lagoon of the island of Bimini, B.W.I., consists principally of elongate tapered pellets. These distinctive pellets were identified as excrement...

1957

Pre-Cambrian and Cambrian Relations in East-Central Minnesota: GEOLOGICAL NOTES

A. J. Crowley , G. A. Thiel

AAPG Bulletin

... end of a glass rod, was thrust into each tube to seal the quartz and heavy minerals in the tapered bottom ends of the tubes. In this way the feldspar...

1940

Settling Convection and Grain Size Analysis: DISCUSSION

David J. A. Williams

Journal of Sedimentary Research (SEPM)

... the effect of tilting straight walled vessels and the effect of End_Page 1641----------------------- tapered-wall vessels on the sedimentation rate...

1969

An Inexpensive Hand-Operated Sediment Corer

Robert G. Sutton

Journal of Sedimentary Research (SEPM)

... experience, there is no great disadvantage in omitting the metal cutting edge completely. The end of the core liner can be tapered with a file...

1974

Early Dissolution of Sponge Spicules from Reef Sediments, North Jamaica

Lynton S. Land

Journal of Sedimentary Research (SEPM)

... of the hemispherical colonies are always sharp, solid, tapered styles with sharp spines (acanthostyles). A few centimeters beneath the living tissue in most specimens...

1976

Abstract: Seismic Imaging near and within the Basement Offshore Malaysia; Including Comparisons of Imaging Algorithms (Geophysics Paper 19)

Nabil El Kady, M. Shah Sulaiman, Zabidi M Dom, Tang Wai Hoong, Lee Mei Lu, Pavel Vasilyev, Martin Bayly

Geological Society of Malaysia (GSM)

... an oversampled range of tapered beams propagated through the subsurface. Upon completion, the two results were compared, The Beam Migration method showed improved...

2011

Routine Heavy Mineral Analysis Using a Concentrating Table: RESEARCH METHOD PAPER

Robert A. Stewart

Journal of Sedimentary Research (SEPM)

... delivered to the deck by a flanged, tapered box (C), which acts as a point source for sediment delivery. This feature, combined with a constant discharge...

1986

Gypsum Dissolution Using a Soxhlet Extractor: RESEARCH METHOD PAPER

David Hayes, R. D. Cody

Journal of Sedimentary Research (SEPM)

... difficulties may develop that can be minimized easily. The bonding together of tapered glass joints in the system occurred and was prevented by wrapping...

1987

Improved Jacob Staff for Measuring Inclined Stratigraphic Intervals: GEOLOGICAL NOTES

Wallace R. Hansen

AAPG Bulletin

... by a tapered metal shoe at the base, which provides more accuracy than, for example, a rubber crutch tip. At maximum extension the staff is 5½ feet...

1960

Section 3: Displays of Seismic Sections: The Nankai Trough Margin, Record 55-8

T. Kawamura and Y. Aoki

AAPG Special Volumes

... CDPs at 2400% resulted from each shot. The seismic source was a tapered array of 21 air guns displacing 34.31 (2,090 in.{3}) at 2000 psi. The records...

1986

Developments in Four Corners-Intermountain Area in 1968

Douglas L. Reese

AAPG Bulletin

... small oil discoveries both in San Juan County. Exploratory work also tapered off in Arizona. One small oil discovery was made in northern Apache...

1969

ABSTRACT Geological Framework of Nigeria Linked Shelf Extension and Deepwater Thrust Belts, #90123 (2011)

David Steele, Joe Ejedawe, Tola Adeogba, Colin Grant, Jacek Filbrandt, Herwig Ganz

Search and Discovery.com

.... Several recent papers have described the mechanics of deformation in the thrust belts as consistent with a tapered wedge model (Corredor et. al., 2005...

2011

Abstract: White Noise Suppression in the Time Domain … Part I; #90174 (2014)

Patrick Butler

Search and Discovery.com

... amplitude. These windows are tapered and overlapped to cover the whole section. After one dip has been removed this process can be repeated until...

2014

Recognition of Passive Salt Diapirism in the Rock Record, #30614 (2019).

Katherine Giles, Mark Rowan,

Search and Discovery.com

... Have Halokinetic Sequences • • • • • • • • Drape folding of roof strata Process related to downbuilding Thinning & upturn <1km Tapered/wedges vs...

2019

Potential Issues with Extreme Limited Entry in Horizontal Wells

Robert D. Barree

Unconventional Resources Technology Conference (URTEC)

.... Perforation diameter and CD with variable backpressure. URTeC 1024 12 Tapered Perforations: It has been suggested that “tapered perforating...

2020

A Comparison of Fold-Thrust Belts in Eastern Sundaland: Structural Commonalities and Differences on the Circum-Borneo Margin

John Jong, Steven M. Barker, Franz L. Kessler

Indonesian Petroleum Association

... geometry of the FTB is not consistent with a classic critically tapered wedge geometry, where one would expect the wedge to dip in a basinward direction...

2015

A New Device for Sampling Lake Sediments

Ira T. Wilson

Journal of Sedimentary Research (SEPM)

... of a [3]/[4]-inch piece of standard pipe 13 inches long tapered at the bottom and tapped out at the top with a standard -inch tap. This adapts...

1941

Induced polarization chargeability calibration standards

John E. E. Kingman, Terry J. Ritchie, Peter Rowston*

Petroleum Exploration Society of Australia (PESA)

... noise, given a carefully designed and tapered time-gate weighting scheme. In summary: • At this stage, some 60 years after the M331 standard...

2019

Calcisphere Ultrastructure and Skeletal Aragonite from the Alga Acetabularia Antillana

D. S. Marszalek

Journal of Sedimentary Research (SEPM)

... is slightly tapered toward the interior of the calcisphere. The circular outline of the operculum is visible on the surface of intact calcispheres...

1975

Downward Injection Structures in Miocene Sediments, Arikaree Group, Nebraska

H. A. Bart

Journal of Sedimentary Research (SEPM)

...-section and tapered shape resemble burrows produced by rodents or root casts of large plants. Ash accumulating in a pond or an abandoned river channel...

1975

Internal Kinematics of Salt Diapirs: DISCUSSION

Thomas G. Fails

AAPG Bulletin

.... This sequence is overlain and underlain by nonobjective strata.) Other piercement salt diapirs are not tapered and appear to continue downward shaped...

1989

Hydrocarbons Cored from Knolls in Southwestern Gulf of Mexico

Richard Rezak, Arnold H. Bouma, Lela M. Jeffrey

GCAGS Transactions

.... The top of the tar was tapered at one side and a loose droplet was found in the upper sediment. Below the tar layer were 102 cm of calcilutite followed...

1969

South Sarepta Field (Smackover Gray Sand) Bossier and Webster Parishes, Louisiana

Luther F. Ellison, Martin Russo

GCAGS Transactions

... of the fracture environment would occur, so the carrying agent composition was tapered "temperaturewise" as the treatment progressed. In order to control...

1976

Using machine learning to predict total organic content … case study: Canning Basin, Western Australia

Russell Menezes

Petroleum Exploration Society of Australia (PESA)

... that there are few outliers in the dataset (the long, tapered end), which after cleaning, shows a better, balanced distribution (Figure 1B). Figure 2...

2019

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