Mechanical and fracture stratigraphy

Stephen E. Laubach, Jon E. Olson, Michael R. Gross

AAPG Bulletin

... information to create derivative logs that highlight rock properties such as strength and brittleness, which we expect to correlate with fractured...

Natural fracture characterization in tight gas sandstones: Integrating mechanics and diagenesis

Jon E. Olson, Stephen E. Laubach, Robert H. Lander

AAPG Bulletin

... for sedimentary sequences (Blanton and Olson, 1999).Taking the derivative of Shmin with respect to pore pressure givesand using reasonable values...

Element migration in turbidite systems: Random or systematic depositional processes?

Richard Labourdette, Martine Bez

AAPG Bulletin

... to the previous one for vertical movements. In this way, the obtained equation is a reduced parabola equation. The derivative of this equation enables...

Organic geochemistry of the Woodford Shale, southeastern Oklahoma: How variable can shales be?

Andrea Miceli Romero, R. Paul Philp

AAPG Bulletin

...). However, eudesmane has been characterized as a derivative of the higher plant precursor eudesmanol; for that reason, it has been used...

How to predict thermal stress in hyperextended margins: Application of a new lithospheric model on the Iberia margin

Marie Callies, Pierre-Yves Filleaudeau, Matthieu Dubille, and François Lorant

AAPG Bulletin

... and are generally considered in basin analysis using the McKenzie (1978) uniform stretching model and derivative of this model (Royden and Keen, 1980...

Inferring total organic carbon and major element geochemical and mineralogical characteristics of shale core from hyperspectral imagery

B. Rivard, N. B. Harris, J. Feng, and T. Dong

AAPG Bulletin

... to fit the amplitude of each spectral feature in reflectance spectra is recorded as the wavelet power. The second order of derivative of Gaussian wavelet...

Fractal characteristics of the anisotropic microstructure and pore distribution of low-rank coal

Junpeng Zou, Weizhong Chen, Diansen Yang, Jingqiang Yuan, and Yu-Yong Jiao

AAPG Bulletin

...oi:10.1103/PhysRev.17.273. Wang, R., Z. Zhuo, H. W. Zhou, and J. F. Liu, 2017, A fractal derivative constitutive model for three stages in granite cre...

A method to predict the resistivity index for tight sandstone reservoirs from nuclear magnetic resonance data

Liang Xiao, Yujiang Shi, Gaoren Li, Haopeng Guo, Junran Li

AAPG Bulletin

... equation can be acquired as follows:Taking the derivative (d) of both sides of equation 6, thenThe cumulative volume of pores with radii less than r can...

Analogue modeling of domino-style extensional basement fault systems with prekinematic salt

O. Ferrer, E. Carola, K. McClay, and N. Bufaliza

AAPG Bulletin

... location (Figure 4B, D). Another derivative of the length of the monoclinal panel (distance between the axial planes of the anticline and the adjacent...

Passageways for permeability: Geostatistical simulation of controls on the connectivity of vug-to-vug pore networks

Hassan A. Eltom, Eugene C. Rankey, Robert H. Goldstein, and Reza Barati

AAPG Bulletin

.... A derivative metric, LCV%, is defined as a continuous variable measured as the ratio between the volume of LCV and the total volume of the model (1...

GEO 2006, 7th Middle East Geosciences Conference and Exhibition, March 27-29, 2006, Manama, Bahrain, #90051 (2006)

Search and Discovery.com

The Browns Park Formation in the Elkhead Region, Northwestern Colorado-South Central Wyoming: Implications for Late Cenozoic Sedimentation

Richard T. Buffler

Rocky Mountain Section (SEPM)

... is indicated by the presence of abundant epidote in the sands. Both a plutonic and metamorphic source is possible, because epidote is a common derivative...

Living On the Edge: Evaluating the Impact of Stress Factors On Animal–Sediment Interactions In Subenvironments of A Shelf-Margin Delta, the Mayaro Formation, Trinidad

Sudipta Dasgupta, Luis A. Buatois, M. Gabriela Mángano

Journal of Sedimentary Research (SEPM)

..., very high sediment accumulation and erosion rates) results in the derivative stresses like pace of morphodynamic movements of barforms, rip currents...

Paleogeography and Correlation of Appalachian Province Lower Devonian Sedimentary Rocks

A. J. Boucot, J. G. Johnson

Tulsa Geological Society

... to be essentially equivalent to the Siegenian Stage of western Europe. Succeeding the Rensselaeria Zone are beds with the Rensselaeria derivative Etymothyris...

Early diagenetic controls on color variation in Eocene red beds: a case study from the Gercus Formation, Zagros Basin, Kurdistan Region, Iraq

Salahadin Shahrokhi, Ondřej Bábek, Howri Mansurbeg, Branimir Šegvić, Juan Diego Martín-Martín, Jaroslav Kapusta, Filip Gregar, Michal Kořenek

Journal of Sedimentary Research (SEPM)

... hematite peaks at 565–575 nm. C, D) Bivariate plots of the first-derivative peak hematite/goethite (h/g) vs. CIE a*/b* ratio for the analyzed sample...

Role of Thermal Subsidence, Flexure, and Eustasy in the Evolution of Early Paleozoic Passive-Margin Carbonate Platforms

Gerard C. Bond, Michelle A. Kominz, Michael S. Steckler, John P. Grotzinger

Special Publications of SEPM

... carbonate platforms can be divided into three stages, which are best be seen in the first derivative of R1 curves, especially in the outer parts...

Continental Shelf Sediments of Long Island, New York

Thomas F. Mckinney , Gerald M. Friedman

Journal of Sedimentary Research (SEPM)

.... The frequency curve is the first derivative of the cumulative curve. Cumulative weight percentages were plotted on probability paper on the phi scale...

Chapter 11: Pikka Field and the Opening of the Nanushuk Play, North Slope, Alaska

Jesse V. Sommer, Kevin Dorrington, Colby VanDenburg, James R. Bonelli, Jr., José Luis Algibez Alonso

AAPG Special Volumes

...-ft (Figure 32B). Figure 32. Qugruk 301 flow test (A) and pressure derivative match (B). The Qugruk 301 well tested a 2000 ft (610m) horizontal...

Sequential Development of Platform to Off-platform Facies of the Great American Carbonate Bank in the Central Appalachians

David K. Brezinski, John F. Taylor, John E. Repetski

AAPG Special Volumes

... of this chapter is to summarize the results of research conducted during the last two decades on the history of sea level change and derivative...

Analysis of Crustal Relative Stability from Some Late Paleozoic and Mesozoic Floral Records

Charles J. Smiley

AAPG Special Volumes

... of relict (or derivative) taxa from late Paleozoic floras, in association with newer taxa more characteristic of the Mesozoic (ginkgophytes, cycadophytes, c...

Depositional Systems and Shelf-Slope Relations on Cratonic Basin Margin, Uppermost Pennsylvanian of North-Central Texas

William E. Galloway , L. F. Brown, Jr.

AAPG Bulletin

... of structural and facies derivative maps, Brown (in Fisher et al., 1969) concluded that a regional but subtle northeast-southwest-trending structural...

Salt Deformation in the Paradox Region, Utah (B-122)

Hellmut H. Doelling, Charles G. Oviatt, Peter W. Huntoon

Utah Geological Survey

... and sandstone. 500+ II Salt Deformation in the Paradox Region dary" or "derivative" anticlinal axis has developed due to salt dissolution and collapse...

Deposits from Wave-Influenced Turbidity Currents: Pennsylvanian Minturn Formation, Colorado, U.S.A.

M. P. Lamb, P. M. Myrow, C. Lukens, K. Houck, J. Strauss

Journal of Sedimentary Research (SEPM)

... at Uw 0.4 m/s, and HCS to planar bed at Uw 1 m/s (Arnott and Southard 1990). A third set of diagrams (Fig. 16C) shows the derivative of the combined...

U-Pb Ages of Detrital Zircons in Relation to Paleogeography: Triassic Paleodrainage Networks and Sediment Dispersal Across Southwest Laurentia

William R. Dickinson, George E. Gehrels

Journal of Sedimentary Research (SEPM)

... the probability curves. There is a temptation to regard the age-bin histograms as raw data and the age-probability plots as derivative curves. In actuality...

Paleogeography and Paleotectonics of the Late Mesozoic Forearc Basin of Northern and Central California

Raymond V. Ingersoll

Pacific Section SEPM

... t e s , and derivative sandstones to arc-trench t e c t o n i c s : R e v . G e o p h y s . Space P h y s . , v . 8 , p. 813-860. 1 9 7 1 , Clastic...