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The AAPG/Datapages Combined Publications Database

Showing 22,208 Results. Searched 190,142 documents.

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Accelerometer vs. Geophone Response: A Field Case History

Search and Discovery.com

... the dominant frequency, and at frequencies above 100 Hz. At station 5184, this pattern was not evident. Close examination of station 5183 found...

2013

Faunal Succession of Norian (Late Triassic) Level-Bottom Benthos in the Lombardian Basin: Implications for the Timing, Rate, and Nature of the Early Mesozoic Marine Revolution

Lydia S. Tackett, David J. Bottjer

PALAIOS

... samples from Norian shallow marine sequences reveals that the changes in dominant taxa occurred in a gradual manner, and this is also reflected...

2012

Seismic Frequency Bandwidth Constraints in Deepwater Locations

Andrew Long, Iain Buchan

Indonesian Petroleum Association

... and cross-line directions (i.e., the use of high-density 3D acquisition) is critical to avoid the loss of recorded high frequencies during processing...

2004

Mineralogy, Genesis, and Sources of Surficial Sediments in the Kuwait Marine Environment, Northern Arabian Gulf

D. Al-Bakri, F. Khalaf, A. Al-Ghadban

Journal of Sedimentary Research (SEPM)

...Mineralogy, Genesis, and Sources of Surficial Sediments in the Kuwait Marine Environment, Northern Arabian Gulf D. Al-Bakri, F. Khalaf, A. Al-Ghadban...

1984

Testing Periodicity of Depositional Cyclicity, Cisco Group (Virgilian and Wolfcampian), Texas

Wan Yang , Michelle A. Kominz

Journal of Sedimentary Research (SEPM)

... of marine and nonmarine carbonate and siliciclastic rocks deposited on the Eastern Shelf, north-central Texas, in Late Pennsylvanian and Early Permian...

1999

Temporal Variability of Suspended Particulate Concentrations in the New York Bight

Robert A. Young, Thomas L. Clarke, Robert Mann, Donald J. P. Swift

Journal of Sedimentary Research (SEPM)

... is present at tidal periods, but tidal currents do not appear to play a dominant role. Processes at lower frequencies dominate all records, and in the two...

1981

A record of dust deposition in northern, mid-latitude Pangaea during peak icehouse conditions of the late Paleozoic ice age

Andrew J. Oordt, Gerilyn S. Soreghan, Lars Stemmerik, Linda A. Hinnov

Journal of Sedimentary Research (SEPM)

.... 13– 19. Hüneke, H., Joachimski, M., Buggisch, W., and Lützner, H., 2001, Marine carbonate facies in response to climate and nutrient level: the Upper...

2020

Recognition of cyclicity in the petrophysical properties of a Maastrichtian pelagic chalk oil field reservoir from the Danish North Sea

Morten Stage

AAPG Bulletin

... consistent cycles at approximately 2 m wavelength, as well as additional frequencies where the relative dominance of the different frequencies differs...

2001

Abstracts: Synthetic Microseismic Files; #90173 (2015)

J. Wong, P. M. Manning, L. Han, and J. B. Bancroft

Search and Discovery.com

... the dominant frequencies in the synthetic seismograms to be 300 Hz or less. These are low compared to frequencies exceeding 500 Hz commonly observed...

2015

Application of high-resolution reflection seismology to eastern Kansas cyclothems

Ralph W. Knapp

Kansas Geological Society

...-frequency data with dominant frequencies of 250 Hz or greater and upper frequency limits of 500 Hz or greater. This band width tunes to the general...

1989

Low Frequency Shadow Zone Analysis Based on CWT Spectral Decomposition: Case Study of South Sumatra Basin

Abdul Haris, I Nengah Suabdi, Erwinsyah, Adriansyah, Abdullah Nurhasan, Ahsanul Khair, Ian A. Kainama

Indonesian Petroleum Association

... of high-frequency energy in the reservoir is predicted as the main factor affecting the low frequency anomaly, which shifts the dominant frequency...

2008

Cycles in Lake Beds of the Triassic Sanford Sub-Basin of North Carolina

Lisa N. HU, Daniel A. Textoris

Special Publications of SEPM

...=fine- and coarse-grained lithic fragments). Groce No. I well. mica schists and fine-grained mica phyllites are the dominant rock fragments...

1996

Mineralogy of Recent Sediments of Tigris and Euphrates Rivers and Some of the Older Detrital Deposits

George Philip

Journal of Sedimentary Research (SEPM)

... mineral species in about the same relative frequencies, characterized by an abundance of iron ores, epidotes, amphiboles and pyroxenes that make more than...

1968

Dispersal Patterns of Sands in Grays Harbor Estuary, Washington

K. F. Scheidegger , J. B. Phipps

Journal of Sedimentary Research (SEPM)

... estuaries (Meade, 1969), (4) the distinctive mineral assemblages of fluvial as compared with marine sources (Kulm and Byrne, 1967), and (5) the textural...

1976

ABSTRACT: SPECTRAL DECOMPOSITION ANALYSIS, SOUTHWEST SOLDADO FIELD, TRINIDAD & TOBAGO

Sierra, J., Landa, A., Cova, C, Cardinez S., Dharpaul, T. and YoungOn, V.

Geological Society of Trinidad & Tobago

..., based on the dominant frequency of the seismic data. Nevertheless, there still being much information that remains hided in others frequencies...

2007

ABSTRACT: Seismic modeling of Upper Cretaceous coal-bearing strata east of Drumheller, Alberta, Canada: implications for CBM exploration; #90007 (2002)

Willem Langenberg, Fran Hein, Sarah Richardson, Don Lawton, Rudi Meyer

Search and Discovery.com

... with dominant frequencies of approximately 100 Hz, whereas the more closely-spaced inclined beds require higher frequencies, approximately 150 Hz...

2002

Abstract: Spectral Decomposition Applications; #90211 (2015)

Satinder Chopra, John Castagna, and Vladimir Alexeev

Search and Discovery.com

... that are based on the dominant frequency in the seismic data. Spectral decomposition allows int erpreters to ut ilize the discr ete components of the se...

2015

3-D Surface-Wave Estimation and Separation Using an Iterative Closed-Loop Approach; #41898 (2016)

Tomohide Ishiyama, Gerrit Blacquiere

Search and Discovery.com

... ([email protected]) Delft University of Technology, Delft, Netherlands 2 Abstract Surface waves in seismic data are often dominant and mask...

2016

Palynology of the Lowland Seberang Prai and Kuala Kurau Areas North -West Peninsular Malaysia

Kamaludin Bin Hassan

Geological Society of Malaysia (GSM)

.... Pollen types from other ecological sources are present in very low frequencies : Pinus, Quercus, Arecaceae, Pandanus, Compnosperma, Macaranga...

1989

Continental Shelf Sediments Off the West Coast of Florida

Howard R. Gould , Robert H. Stewart

Journal of Sedimentary Research (SEPM)

... by rivers entering the Gulf, which suggests that the ,sediments were derived from these sources. The five outer zones, combined, have an average width of 100...

1953

Proposed Model for Cenozoic Sedimentary History of Bering Sea: ABSTRACT

D. M. Hopkins, C. H. Nelson, D. W. Scholl

AAPG Bulletin

... and Holocene times. Basin-filling was dominated by continental sedimentation in the early Tertiary and by marine deposition in the later Tertiary...

1972

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