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The AAPG/Datapages Combined Publications Database
Showing 2,007 Results. Searched 200,636 documents.
A Revised Palynostratigraphic Zonation of the Nonmarine Upper Cretaceous, Rocky Mountain Region, United States
Douglas J. Nichols
Rocky Mountain Section (SEPM)
... zones are derivative, the implications for palynostrarigraphy of alterations in the radiometric dating of stage boundaries are similarly of major...
1994
Modal and Geochemical Compositions of the Lower Silurian Clastic Rocks in North Qilian, NW China: Implications for Provenance, Chemical Weathering, and Tectonic Setting
Jianghai Yang, Yuansheng Du, Peter A. Cawood, Yajun Xu
Journal of Sedimentary Research (SEPM)
... minor and makes up between 1.4% and 11.4% of any given sample. On Q-F-L and derivative Qm-F-Lt diagrams (Dickinson et al. 1983; Marsaglia and Ingersoll...
2012
Relationship between mineralogy and porosity in seals relevant to geologic CO2 sequestration
Alexander M. Swift, Lawrence M. Anovitz, Julia M. Sheets, David R. Cole, Susan A. Welch, and Gernot Rother
Environmental Geosciences (DEG)
... boundary further complicates the assumptions. However, by taking the derivative of the cumulative porosity curves, the pore volume distribution can...
2014
State of stress in the Illinois Basin and constraints on inducing failure
R. W. Lahann, J. A. Rupp, C. R. Medina, G. Carlson, and K. M. Johnson
Environmental Geosciences (DEG)
... of the stress tensor components is imposed using a first-derivative smoothing operator. Like all formal stress inversions, this method assumes fault slip...
2017
The Dakota Group and the Kiowa-Skull Creek Cyclothem in the Canon City - Pueblo Area, Colorado
Edmund R. Gustason, Erle G. Kauffman
Special Publications of SEPM
... to the Northern Interior Subprovince thus position, suggesting channel abandonment. Inoceranius belivuensis is, however, Kauffman (1984). of I. derivative...
1985
Grain-Size Controls On the Morphology and Internal Geometry of River-Dominated Deltas
Alexander P. Burpee, Rudy L. Slingerland, Douglas A. Edmonds, Daniel Parsons, Jim Best, James Cederberg, Andrew McGuffin, Rebecca Caldwell, Austin Nijhuis, Jordan Royce
Journal of Sedimentary Research (SEPM)
... of five equally spaced points along a geo-referenced clinoform and taking its second derivative. Thus, if the polynomial is of the form...
2015
Indonesia Security Outlook 2010: Challenges Ahead for Indonesias Security
Whisnu Bharata
Indonesian Petroleum Association
..., especially its derivative products are generally unregulated, so it is difficult to make sure which direction will the global financial market be going...
2010
Biomarkers in Sediments, Sedimentary Rocks and Petroleums: Biological Origins, Geological Fate and Applications
Simon C. Brassell
Special Publications of SEPM
... appear at very low m/z values (e.g. m/z 23.3107) in the range of peaks from air leaks etc. biomarkers. Derivative Formula Compounds Me esters...
1992
Intertwined Fates of Metals, Sulfur, and Organic Carbon in Black Shales
Lisa M. Pratt, Cara L. Davis
Special Publications of SEPM
... derivative biogenic substrate - Generalized sulfur-incorporation scheme for intramolecular and intermolecular addition of sulfur to organic substrates...
1992
SPATIAL AND TEMPORAL SIGNIFICANCE OF PROCESS ICHNOLOGY DATA FROM SILTY-MUDSTONE BEDS OF INCLINED HETEROLITHIC STRATIFICATION, LOWER CRETACEOUS MCMURRAY FORMATION, NE ALBERTA, CANADA
ERIC R. TIMMER, MURRAY K. GINGRAS, JOHN-PAUL ZONNEVELD
PALAIOS
..., Derivative dynamic time warping: Society for Industrial and Applied Mathematics, Proceedings of the SIAM International Conference on Data Mining, v. 1...
2016
FOSSILIZATION MODEL FOR SQUAMASTROBUS TIGRENSIS FOLIAGE IN A VOLCANIC-ASH DEPOSIT: IMPLICATIONS FOR PRESERVATION AND TAPHONOMY (PODOCARPACEAE, LOWER CRETACEOUS, ARGENTINA)
MAITEN A. LAFUENTE DIAZ, JOSÉ A. D'ANGELO, GEORGINA M. DEL FUEYO, ERWIN L. ZODROW
PALAIOS
...): subtraction of a multiple (3100) of the second derivative from the original spectrum (Rosenfeld and Kak 1982; Almendros and Sanz 1992). Semi-quantitative...
2018
Stratigraphy and Tectonic Significance of the Mesozoic Tectonostratigraphic Terranes of the Vizcaino Peninsula, Baja California Sur, Mexico
Thomas Moore
Circum Pacific Council Publications
... of obvious local derivative such as ankaramite, cumulate gabbro, serpentinite, and amphibolite. T h e strata indicate that the basement rocks of the Vizcaino...
1985
Deep-sea fans: tapping into Earth's changing landscapes
Angela M. Hessler, Andrea Fildani
Journal of Sedimentary Research (SEPM)
..., Relations of andesites, granites, and derivative sandstones to arc–trench tectonics: Reviews of Geophysics, v. 8, p. 813– 860. Dickinson, W.R....
2019
Paleotectonics and Provenance of Tertiary Sandstones of the San Joaquin Basin, California
James V. Bent
Pacific Section SEPM
... similar lithologies and their derivative sandstones exhibit similar compositions, petrographic data alone rarely accurately differentiate eastern from...
1988
Environmental magnetism evidence for longshore drift distribution of Fe-bearing phases: An example from the Brazilian southeastern coastal region
Vitor E.P. Silveira, Natália B. dos Santos, Daniel R. Franco, Emanuele F. la Terra, Joshua M. Feinberg, R.B. Scorzelli, Magda B. Fontes, Luiz C. Bertolino, Joice Cagliari, Marcelo K. de Souza, Gelvam A. Hartmann
Journal of Sedimentary Research (SEPM)
..., the characteristic coercivity spectra can be inferred for each remanence carrier from the first derivative of the acquisition curve (Kruiver et al. 2001...
2021
Breakthrough in Hydraulic Fracture & Proppant Mapping: Achieving Increased Precision with Lower Cost
Matthew Dawson, Günther Kampfer
Unconventional Resources Technology Conference (URTEC)
... and W3. However, there is no clear indication of direct fluid communication between Well W1 and W3. The derivative curves indicate potential for very...
2016
Redox dynamics and metal cycling in the carbonate-buffered sediment–water interface of the ferruginous and sulfatic Lake Medard, Czech Republic
Daniel A. Petrash, Astolfo Valero, Karelys Umbría-Salinas, Christophe Thomazo, Travis B. Meador, František Laufek, James J. Valdés, Vladislav Chrastný, Kurt O. Konhauser
Journal of Sedimentary Research (SEPM)
... inflection point of the first derivative to 7126.3 eV (corresponding to the energy at half the step size) of reference. The experimental spectra...
2025
Structural Interpretation of the Northern Canning Basin, Western Australia
Y. Zhan, A. J. Mory
Petroleum Exploration Society of Australia (PESA)
... 4. Structural deformation in Grant Range–Mt Wynne area. a & b) first vertical derivative of aeromagnetic image. Strong lineaments in the data suggest...
2013
Pre-Diagenetic Sedimentary Fractionation of Andesitic Detritus in a Semi-Arid Climate an Example from the Eocene Datil Group, New Mexico
Steven M. Cather, Robert L. Folk
Special Publications of SEPM
... to evaluate the mineralogic evolution of derivative sediments by compar ing the modal characteristics of conglomerates sandstones and mudstones...
1991
Clay Mineralogy of an Interbedded Sandstone, Dolomite, and Anhydrite: The Permian Yates Formation, Winkler County Texas
J. S. JANKS, M. R. YUSAS, C. M. HALL
Special Publications of SEPM
... be an illite transformation and to YUSAS or derivative of a a weathered terrain We found no evidence smectite in any shale sample Illite...
1992
Lindsborg Field--U.S.A. Salina Basin, Kansas
K. David Newell
AAPG Special Volumes
... 358------------------------ Fig. 9. Shaded second vertical-derivative of total magnetic field intensity map of central Kansas (from Yarger, 1983...
1990
The opaque mineralogy of metasedimentary rocks of the Meguma Group, Beaverbank-Rawdon area, Nova Scotia
S. J. Haysom, R. J. Horne, G. Pe-Piper
Atlantic Geology
..., first derivative and second de rivative. Nova Scotia Department of Natural Resources, Open File Report 94-004. ---- 1995. Interpretation of magnetic...
1997
Pyrrhotite and associated sulphides and their relationship to acid rock drainage in the Halifax Formation, Meguma Group, Nova Scotia
Don Fox, Clare Robinson, Marcos Zentilli
Atlantic Geology
... of troilite is hexagonal and is a derivative structure of the NiAs min eral nickeline (Wuensch, 1974). All pyrrhotite minerals are considered...
1997
Production Optimization Using Machine Learning in Bakken Shale
Guofan Luo, Yao Tian, Mariia Bychina, Christine Ehlig-Economides
Unconventional Resources Technology Conference (URTEC)
... derivative response for completions stages. 1000 10000 100000 URTeC 2902505 17 Because the prediction from deep learning model is generated...
2018
Platinum and Other Related Element Enrichments in Pacific Ferromanganese Crust Deposits
Denys L. VonderHaar, Gary M. McMurtry, Dieter Garbe-Schönberg, Doris Stüben, Bradley K. Esser
Special Publications of SEPM
... at -1-mm intervals. Redox-sensitive elements such as Fe, Mn, Co, Cr, the derivative Ce and Eu anomalies, and Sm/Yb ratios from transect 2, when...
2000