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The AAPG/Datapages Combined Publications Database

Showing 604 Results. Searched 194,578 documents.

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ABSTRACT: Efficiency of high-frequency seismic survey on the Black Sea shelf in the processing of seismic data; #90109 (2010)

Iuliia Miasoiedova

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... of initial guess, were significantly attenuated using the tapered dynamic filter (TMDDF). TMDDF applied to primary seismic records, has attenuated the low...


Abstract: Structural Styles of the of the Central Alberta Foothills, Brown Creek Area; #90172 (2014)

Rob Taerum, Deborah Spratt

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... architecture: a tectonic wedge, tapered towards the foreland, bounded by upper and lower detachment surfaces. From the US-Canada border to the YukonBC...


Abstract: Salt Tectonics and Salt-Sediment Interaction around the Bakio Diapir, Basque-Cantabrian Basin, Pyrenees; #90255 (2017)

Eduard Roca, Mireia Butillé, Ferrer J. Oriol, Pau Arbués, Marco De Matteis, Josep Anton Muñoz, Mark Rowan, Katherine Giles

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... siliciclastic turbidites. Adjacent to the diapir on both flanks, the strata form tapered composite halokinetic sequences with convergent bedding folded...


Description of a Portable Piston Corer for Use in Shallow Water: NOTES

Donald J. Reish, Keith E. Green

Journal of Sedimentary Research (SEPM)

... in to in reducing coupling to in galvanized pipe. The cutting edge of the brass tube is tapered for easier penetration. Two holes, measuring in in diameter...


A Microsplitter for Subsampling Small Particulate Samples: NOTES

R. Brewer, K. J. Barrow

Journal of Sedimentary Research (SEPM)

... with a tapered point (B1) and is facilitated by the vibrator which is connected with the post on which the hopper is mounted. The parts...


Cable Tool Drilling in the Appalachian Area - New Tchniques, Equipment Point to Changes in Cable Tool Field

R.B. Anderson

Appalachian Geological Society

... holes, particularly on closely integrated machines such as the spudder. TAPERED DRILLING AND SAND LINES.--Drilling depths in excess of 6,000 feet have...


Gravity and Magnetic Models of the Tomahawk Diatreme, Northern Black Hills, South Dakota

D. D. Everson, W. M. Roggenthen

Wyoming Geological Association

... models, called tapered models in this study, offer a means of generating the large central gravity low with a body having a smaller total vertical extent...


Facies Distribution and Halokinetic Sequence Stratigraphy of Lower Cambrian Carbonate Strata adjacent to Wirrealpa Diapir, a Secondary Salt Diapir in the Central Flinders Ranges, South Australia

Aubrey J. Collie

GCAGS Transactions

... (CHS). One minibasin contains tapered CHS, formed when sediment accumulation rate outpaces diapir rise rate. The opposing minibasin contains primarily...


Salients, Recesses, Arcs, Oroclines, and SyntaxesA Review of Ideas Concerning the Formation of Map-view Curves in Fold-thrust Belts

Stephen Marshak

AAPG Special Volumes

... endpoint of the Himalayan arc. This collision can be modeled by a tapered indenting block that underthrusts a soft layer, generating a doubly vergent...


Three Dimensional Geometries and Thickness of Reservoir Sand Bodies--Example from Carboniferous of Kentucky

J. C. Ferm

GCAGS Transactions

... distribution are small splays. These small, flat bottomed deposits have sharp or slightly gradational lower contact and thin tapered edges (Fig. 6...


Exploration on Continental Shelf Off Northwest Australia

N. W. Martison , D. R. McDonald , P. Kaye

AAPG Bulletin

...) maxipulse, 48-channel, 2-mi streamer cable, acceleration cancelling hydrophones in tapered arrays. In most of the advances in data-acquisition technique...



W. P. Mason

Tulsa Geological Society

... that are increased in amplitude by the tapered metal horn attached to the transducer. By attaching a die of a desired shape on the end of the horn...


A Square-Rod Piston Sampler for Lake Sediments: NOTES

H. E. Wright, Jr.

Journal of Sedimentary Research (SEPM)

...) that project -inch above the disc (2). Lower end of rod (3) has removable tapered end piece (8) [7]/[8]-inch in largest diameter to prevent the rod from...


Controls of Shapes and Evolution of Salt Diapirs: Experimental Studies

Shankar Mitra, Pierre Karam

GCAGS Transactions

... with overhangs; whereas high sediment rates and thinner source layers result in tapered shapes and eventual eclipse and occlusion of the diapirs. Variable...


Plane-of-Sight Jacob's Staff for Measuring Sections Oblique to Dip: RESEARCH METHOD PAPER

Charles D. Winker

Journal of Sedimentary Research (SEPM)

..., the staff can be made in three 0.5-m segments with threaded joints. Because plumbing thre ds are tapered and are too tight to permit complete assembly or easy...


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