Geochemical Mass-Balance and Oxygen-Isotope Constraints on Silcrete Formation and Its Paleoclimatic Implications in Southern Australia

John A. Webb , Suzanne D. Golding

Journal of Sedimentary Research (SEPM)

... to the associated basalts, weathering of which supplied the introduced silica. This conclusion is based on the close spatial connection between...

Analytical Theory of Slope Development by Undercutting

A. E. Scheidegger

CSPG Bulletin

... and boundary conditions. The basis of the calculations was that the denudational agents affect directly the surface of the slope itself. Discussions with Dr. C...

Near-Surface Characterization for Seismic Exploration Based on Gravity and Resistivity Data; #41892 (2016)

Jan Mrlina

Search and Discovery.com

... the seismic resolution on the whole. If the static corrections and subsurface velocity model are not accurate, not only fine deep details, but the complete...

Abstract: Preliminary Results of Engineering Geological Weathering Characterization of Interbedded Heterogeneous Siliclastic Sedimentary Rocks in Temerloh, Pahang, Malaysia

Anisah Anuar, Abdul Ghani Rafek

Geological Society of Malaysia (GSM)

...Abstract: Preliminary Results of Engineering Geological Weathering Characterization of Interbedded Heterogeneous Siliclastic Sedimentary Rocks...

Abstract: the Provenance and Basin History of the Quartzose Paso del Sapo Formation: Evidence for Intense Weathering During the Late Cretaceous, Chubut Province, Argentina

Search and Discovery.com

Fingerprinting of Crude Oil by the Infrared Spectrophotometry Method

M. Mulyono, R. Desrina

Indonesian Petroleum Association

... the other two. The method is useful to distinguish crude oils even when they have undergone some weathering. Because two crudes mixed in several different...

Climate Sensitivity during the Phanerozoic: Lessons for the Future

Dana L. Royer

Search and Discovery.com

... sensitivity because the weathering of Ca and Mg-rich silicate rocks, which serves as a long-term sink for CO2, is sensitive to temperature. Thus...

87Sr/86Sr Variation in Tortonian Mediterranean Sediments: A Record of Milankovitch Cyclicity

Mario Sprovieri, Angelo Bonanno, Mario Barbieri, Adriana Bellanca, Rodolfo Neri, Bernardo Patti, Salvatore Mazzola

Special Publications of SEPM

... times larger than that reported for site 758 by Clemens et al. (1993) for the same periodic oscillations. Mass-balance calculations applied to our dataset...

Stratigraphy of the Lower Part of the Belt-Purcell Supergroup (Middle Proterozoic) in the Lewis Thrust Sheet of Southern Alberta and British Columbia

Peter R. Fermor, Raymond A. Price

CSPG Bulletin

... fault (Price, 1962, 1965), a southwest-dipping listric normal fault that probably merges at depth with the Lewis thrust (Bally et al., 1966). End...

Mineral and Chemical Alluviation in a Unique Pedologic Example

W. D. Keller

Journal of Sedimentary Research (SEPM)

... are presented which indicate the annual contribution of the alluviation. In the chemical weathering of rocks to soil the sequence of energy effects begins...

Abstract: Field Studies of Bronzite Granophyre, Vredefort Structure, South Africa

A. M. Therriault and W. U. Reimold

Houston Geological Society Bulletin

... the dikes, (2) if BG dikes are truly continuous or discontinuous, and (3) if they dip at depth. Although dip angles have not yet been computed, the survey...

Weathering of Silicate Minerals: REPLY

W. D. Keller

AAPG Bulletin

...Weathering of Silicate Minerals: REPLY W. D. Keller 1958 2525 2526 42 10. (October) KELLER, W. D., 1957, Principles of Chemical Weathering. 110 pp...

Predicting Sandstone Reservoir System Quality and Example of Petrophysical Evaluation; Dan J. Hartmann, Edward A. Beaumont, and Edward Coalson; Search and Discovery Article #40005 (2000)

Search and Discovery.com

Deposition and diagenesis of Mississippian chat reservoirs, north-central Oklahoma

Suzanne M. Rogers

AAPG Bulletin

... to extensive erosion from prolonged exposure. Subsequent to weathering and deposition of the debris flows, optimum water depth (below wave base for silica...

Basic Seismic Processing: Part 7. Geophysical Methods

Peter M. Duncan

AAPG Special Volumes

... moveout (DMO) correction: NMO corrections are made under the assumption of horizontal planar reflectors. If the reflector has appreciable dip...

Abstract: Predicting Free Surface Multiples without the Water: SRME on Land; #90224 (2015)

Keith Wilkinson, Richard Bale, and Ken Gray

Search and Discovery.com

... static corrections during the prediction phase. Our surface corrected multiple elimination (SCME) is demonstrated using a synthetic test containing both...

Velocity Anomalies and Out-of-Plane Reflections in Barnicarndy 1, Canning Basin

Y. Zhan

Australian Petroleum Production & Exploration Association (APPEA) Journal

... the data in the elevated areas. Static corrections were applied to the seismic data to compensate for the effects of variations in elevation, weathering...

Characteristics of Global-Sediment Formation in Regions of High- and Superhigh-Accumulation Rates

Alexander P. Lisitzin

Special Publications of SEPM

... influence is produced by climate because it determines the rate and depth of protolith processing by chemical weathering are TRANSFORMATION...

SEISMIC EXPLORATION IN BLAINE AND PHILLIPS COUNTIES, MONTANA, AND ADJACENT PARTS OF CANADA

S. W. FRUEHLING

Montana Geological Society

... to be of low relief. Thus the necessity of achieving a high degree of accuracy of the near surface corrections is quite obvious...

Volcanic Reservoir Characterization of Jatibarang Formation Based on an Integrated Study of Petrography, Core, FMI, and Well Log

Zeindra Ernando, Achmad Fathoni

Indonesian Petroleum Association

..., (petrography sample depth 3000 – 3002 m), conglomerate as quartz granule (petrography sample depth 3051 m) and sandy conglomerate (petrography sample...

Clay Mineral Diagenesis as a Possible Source of Silica Cement in Sedimentary Rocks

Kenneth M. Towe

Journal of Sedimentary Research (SEPM)

... rocks. Depth of burial appears to be an important factor in effecting this change and although supporting data are lacking, the changes in mineralogy...

Diagenesis of the Upper Proterozoic Siliciclastic Sediments of the Taoudeni Basin (West Africa) and Relation to Diabase Emplacement

Jean-Pierre Girard , Max Deynoux, Daniel Nahon

Journal of Sedimentary Research (SEPM)

... Precambrien superieur et Paleozoique de Taoudeni en Haute Volta [these 3e cycle, unpubl.]: Univ. Poitiers, 197 p. POTTER, R. W., 1977, Pressure corrections...

Diagenesis and Weathering: DISCUSSION

Eliot Blackwelder

AAPG Bulletin

...Diagenesis and Weathering: DISCUSSION Eliot Blackwelder 1947 500 500 31 3. (March) In the January number of the Bulletin,(FOOTNOTE 3) W. C. Krumbein...

Adjustments of Velocity Logs to Tie Geophone Surveys

Warren Hicks

Oklahoma City Geological Society

... averaging results from the two sides of the well. This assumption may lead to a large error due to surface weathering, dip, or a fault. End_Page 137...

Paleopedology and Paleohydrology of a Volcaniclastic Paleosol Interval: Implications for Early Pleistocene Stratigraphy and Paleoclimate Record, Olduvai Gorge, Tanzania

Gail M. Ashley , Steven G. Driese

Journal of Sedimentary Research (SEPM)

... pedogenic phases. The Lower Paleosol developed at both sites, whereas the Upper Paleosol developed only at the upslope site. Mass-balance calculations...