Magnetic susceptibility variations in lower Paleozoic shales of the western Baltic Basin (northern Poland): A tool for regional stratigraphic correlations and the decoding of paleoenvironmental changes

D. K. Niezabitowska, J. Roszkowska-Remin, R. Szaniawski, and A. Derkowski

AAPG Bulletin

...°C–250°C temperature range) using the least-squares method. The calculations were conducted in the instruments Cureval8 software. Lithosedimentological...

GEO 2018; - Abstracts, #90319 (2018).

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Chapter 14: Gravity, Seismic Reflection, and Tomographic Constraints on the Subduction-to-Strike-Slip Transition at the Southeastern Caribbean Plate Boundary Zone

Tricia G. Alvarez, Paul Mann, Carlos A. Vargas, Lesli J. Wood

AAPG Special Volumes

.... Q11004. Crosson, R. S., 1976, Crustal structure modeling of earthquake data: 1. Simultaneous least squares estimation of hypocenter and velocity...

Oceanographic Currents and the Convexity of the Uppermost Continental Slope

Neil C. Mitchell, John M. Huthnance

Journal of Sedimentary Research (SEPM)

... represent average Q for given gradient groupings (plus and gray-filled symbols only). The oblique lines are least-squares regressions of Q on gradient...

Bass Basin Geology and Petroleum Exploration

G. C. Smith

Petroleum Exploration Society of Australia (PESA)

... and the least-squares fitting technique of partial trend-surfaces . Geothermal gradients were calculated for all wells drilled up to 1980 using dT/dX...

Anatomy of a Flysch

Paul Enos

Journal of Sedimentary Research (SEPM)

... to derive an empirical formula by least squares fit (regression) for the observed rate of downcurrent disappearance of individual beds in ß7 member...

The high-magnesium calcite origin of nummulitid foraminifera and implications for the identification of calcite diagenesis

Laura J. Cotton, David Evans, Simon J. Beavington-Penney

PALAIOS

... least squares linear regression, with confidence intervals in dashed lines. Data from Dauphin (1999)—coralline algae, brachiopods, sea urchins...

A review of the genesis, evolution, and prediction of natural fractures in deep tight sandstones of China

Lianbo Zeng, Lei Gong, Yunzhao Zhang, Shaoqun Dong, and Wenya Lyu

AAPG Bulletin

... from a simulated stress field using the least-squares method, and the fitting formula can be used to calculate fracture distribution (Ding et al...

Fault/Fracture Controlled Hydrothermal Dolomitization and Associated Diagenesis of the Upper Devonian Jean Marie Member (Redknife Formation) in the July Lake Area of Northeastern British Columbia

Jack Wendte, Ihsan Al-Aasm, Guoxiang Chi, David Sargent

CSPG Bulletin

... for calcite components. The least squares regression line and the corresponding correlation coefficient for all equant calcite cement components...

Chapter 23: Crustal Structure and Geologic History of the Espino Rift, Venezuela, Based on Potential Fields, Seismic Reflection, and Well Data

Lourdes Rodriguez, Paul Mann, Stuart Hall

AAPG Special Volumes

... model used in this study combined the Pavlis et al. (2008) gravity compilation (i.e., EGM2008) developed in a least squares adjustment...

Recognition of Transgressive and Post-Transgressive Sand Ridges On The New Jersey Continental Shelf

W. L. Stubblefieldi, D. W. McGrail, D. G. Kersey

Special Publications of SEPM

... of the bottom topography in the cross shelf profiles Bathymetric input data consisted of a depth at 300 m intervals along each profile line A least squares method...

Statistical Time-Series Analysis and Sedimentological Tuning of Bedding Rhythms in a Triassic Basinal Succession (Southern Alps, Italy)

Florian Maurer, Linda Hinnov, Wolfgang Schlager

Special Publications of SEPM

.... 522-533. LOMB, N.R., 1976, Least squares frequency analysis of unequally spaced data: Astrophysics and Space Science, v. 39, p. 447-462. MAURER, F...

Revised stratigraphy, regional correlations and new bentonite radiometric ages for the Albian Loon River Formation, Fort St. John Group, northwestern Alberta

B. Hathway, G. Dolby, D. H. McNeil, S. L. Kamo, M. T. Heizler, N. Joyce

CSPG Bulletin

... in Petra® using the ‘highly connected features (least squares)’ option. Figure 4. Structure contour maps for (A) TS1. Solid blue line marks the zero...

Chemical and Sr-Isotopic Variations During Diagenesis of Miocene Siliceous Sediments of the Monterey Formation, California

Hannes K. Brueckner, Walter S. Snyder

Journal of Sedimentary Research (SEPM)

... of 0.707945. The decay constant used for Rb87 is 1.42 x 10-11/yr. Simple least-squares lines were fitted to the linear arrays on Rb-Sr isochron...

Analysis of Fluid and Heat Regimes in Sedimentary Basins: Techniques for Use with Large Data Bases

S. Bachu, C. M. Sauveplane, A. T. Lytviak, Brian Hitchon

AAPG Bulletin

... with depth are presented in Figure 10 for a shale and a sandstone from the Cold Lake area. In applying this method of calculating the geothermal gradient, one...

Deposits of the sandy braided South Saskatchewan River: Implications for the use of modern analogs in reconstructing channel dimensions in reservoir characterization

Ian A. Lunt, Gregory H. Sambrook Smith, James L. Best, Philip J. Ashworth, Stuart N. Lane, Christopher J. Simpson

AAPG Bulletin

...). Nonlinear, least-squares fitting of equation 2 to the probability density function of dune height results in values of and of 2.134 and 0.0597...

Petrologic evolution of the San Juan volcanic field, southwestern Colorado: Pb and Sr isotope evidence

Peter W. Lipman, Bruce R. Doe, Carl E. Hedge, Thomas A. Steven

Grand Junction Geological Society

.... America Bull., v. 55, p. 1047–1079. York, Derek, 1969, Least squares fitting of a straight line with correlated errors: Earth and Planetary Sci...

Orbital Climate Forcing in Mudflat to Marginal Lacustrine Deposits in the Miocene Teruel Basin (Northeast Spain)

Hemmo A. Abels, Hayfaa Abdul Aziz, Dario Ventra, Frederik J. Hilgen

Journal of Sedimentary Research (SEPM)

... Spain): Neues Jahrbuch fur Geologie und Palaontologie Monatshefte, v. 6, p. 327–360. Kirschvink, J.L., 1980, The least-squares line and plane...

Eastern Boulder-Weld fault zone, Colorado: A gravity slide with pop-up structures

Richard H. Groshong, Jr., Ken Kittleson

Rocky Mountain Association of Geologists

...). The best-fitting line is found by least squares and the inverse slope of the line is the displacement that formed the structure. The linear...

Architectural analysis of subsurface meander-belt sandstones: A case study of a densely drilled oil field, Zhanhua sag, east of Bohai Bay Basin

Zhifeng Sun, Chengyan Lin, Xianguo Zhang, Dongxing Du, Yong Yang, and Jia Guo

AAPG Bulletin

... province: AAPG Bulletin, v. 87, no. 2, p. 197–230, doi:10.1306/09240201054. Huang, Y. S., and G. T. Schuster, 2012, Multisource least-squares migration...

An Integrated Approach to Determining 4D Stress Development at Castle Cove

Hugo B. Burgin, Khalid Amrouch, Philippe Robion, David Kulikowski

Australian Petroleum Production & Exploration Association (APPEA) Journal

... test of least-squares strain gage calculation using twinned calcite. Geological Society of America Bulletin 85(12), 1855–1864. doi:10.1130/0016-7606...

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)

... tensor catalog (Herrmann et al., 2011) and Global Centroid Moment Tensor Catalog (Ekström et al., 2012). This method is a damped least squares inversion...

Scaling the Response of Deltas To Relative-Sea-Level Cycles By Autogenic Space and Time Scales: A Laboratory Study

Lizhu Yu, Qi Li,, Kyle M. Straub

Journal of Sedimentary Research (SEPM)

...We subtract this long-term trend, estimated with a least-squares linear regression of the growth of , to analyze the influence of sea-level cycles in pe...

XRF-based Chemostratigraphy Between and Across Two Disconformities in the Ordovician Trenton Group and Utica Shale of Central New York, U.S.A.

Jeffrey T. Pietras, Ethan B. Spiegel

Journal of Sedimentary Research (SEPM)

... between observed and calculated spectra using a least-squares regression (cf. Mumme et al. 1996). XRF Semiquantitative X-ray fluorescence (XRF...

BIBLIOGRAPHY OF THESES AND DISSERTATIONS ON UTAH, BY ALL INSTITUTIONS, 1968 - 1979

Michael W. Hansen, Cheryl L. Kirk, William J. Byrd, Robin L. Dow, Joseph R. Lukas, Kathy A. Barrie

Rocky Mountain Association of Geologists

...), northcentral Utah: Univ. Utah, Salt Lake City, Utah, Masters thesis. Buttgereit, CD., 1968, A study of the least squares method of polynomial fitting: Univ...