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Showing 10,850 Results. Searched 196,360 documents.
Regional Evaluation of Cut-Slope Instability Using Statistical Methods - Northern Range, Trinidad
Stanley Rich Wharton
Geological Society of Trinidad & Tobago
... and the degree of weathering. Three main statistical tests were performed: 1. Cross-tabulation statistical test for alpha-numeric data, 2. One-Way...
1991
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...
2000
Abstract: Weathering and Rock Strength
John Kunaraj
Geological Society of Malaysia (GSM)
...Abstract: Weathering and Rock Strength John Kunaraj 276 Weathering and rock strength JOHN KUNARAJ, Jabatan Geologi, Universiti Malaya, Kuala Lumpur...
1982
Abstract: Weathering of Granitic Rocks
John K. Raj
Geological Society of Malaysia (GSM)
... of the original bedrock; the degree of preservation increasing with depth. Morphological Zone III (comprising Rock Mass Weathering Grades 2 and 1...
1998
Application of Schmidt hammer rebound test for weathering profile classification of granite, Paya Terubong, Penang, Malaysia
Mohamad Anuri Ghazali, Mohd Rozi Umor, Mohd Syafiq Hussin, Abdul Ghani Md. Rafek
Geological Society of Malaysia (GSM)
...Application of Schmidt hammer rebound test for weathering profile classification of granite, Paya Terubong, Penang, Malaysia Mohamad Anuri Ghazali...
2022
High-Frequency Detrital Signals in Eocene Fan-Delta Sandstones of Mixed Parentage (South-Central Pyrenees, Spain): A Reconstruction of Chemical Weathering in Transit
G. J. Weltje, S. O. K. J. Van Ansenwoude, P. L. De Boer
Journal of Sedimentary Research (SEPM)
... Weathering in Transit G. J. Weltje, S. O. K. J. Van Ansenwoude, P. L. De Boer 1996 Vol. 66 No. 1. (January), High-frequency sedimentation patterns in fan...
1996
Differential Mobility of Elements in Burial Diagenesis of Siliciclastic Rocks
Robert P. Wintsch, Cindy M. Kvale
Journal of Sedimentary Research (SEPM)
..., the calculations show that rock densities increase slightly with depth, and reveal a systematic error of up to 3% in the volume factor if a constant density...
1994
Weathering Features of a Granitic Outcrop at Sungai Batu, Penang
Lim Tow Ho
Geological Society of Malaysia (GSM)
...Weathering Features of a Granitic Outcrop at Sungai Batu, Penang Lim Tow Ho Weathering features of a granitic outcrop at Sungai Batu, Penang LIM Tow...
1995
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...
1961
Geochemical and Isotopic Signatures of Surficial Sediments from the Western Continental Shelf of India: Inferring Provenance, Weathering, and the Nature of Organic Matter
Siby Kurian, B. Nagender Nath, N. Chandramohana Kumar, K.K.C. Nair
Journal of Sedimentary Research (SEPM)
...Geochemical and Isotopic Signatures of Surficial Sediments from the Western Continental Shelf of India: Inferring Provenance, Weathering...
2013
High Resolution “Vibroseis” Data – Compressional and Shear-Wave Modes
D. E. Miller, D. E. Dunster
Pacific Section of AAPG
... 6 shows the same data after being corrected for weathering and elevation. The undulations are nearly gone and the slight south dip is now apparent...
1972
A Fulcrum Approach To Assessing Source-To-Sink Mass Balance Using Channel Paleohydrologic Paramaters Derivable From Common Fluvial Data Sets With An Example From the Cretaceous of Egypt
John Holbrook, Hamdalla Wanas
Journal of Sedimentary Research (SEPM)
.... An additional factor worthy of consideration is that discharge calculations from field measurements are derived not only from channel depth but also...
2014
Provenance of Triassic-Cretaceous Sandstones in the Antarctic Peninsula: Implications for Terrane Models During Gondwana Breakup
Robert C.R. Willan
Journal of Sedimentary Research (SEPM)
..., p. 715-717. NESBITT, H.W., AND YOUNG, G.M., 1984, Prediction of some weathering trends of plutonic and volcanic rocks based on thermodynamic...
2003
Fluvial Sedimentation Conditioned by Quaternary Climatic Change in Central Texas
Victor R. Baker , Margarida Maria Penteado-Orellana
Journal of Sedimentary Research (SEPM)
... of the Colorado River during the Quaternary has resulted in long perio s of storage for alluvium in flanking terraces. With increasing time for weathering...
1978
Paleohydrology of the Eocene Las Palmas Gravels, Baja California, Mexico
Scott D. McDonough, Patrick L. Abbott
Pacific Section SEPM
... of the techniques overlapping. The largest and most anomalous values of depth came frcm calculations based on Dubpy's equation. They utilize shear stress values...
1989
Systematic Approach in the Characterisation of Granitic Weathering Profiles in Tropical Terrains
Ibrahim Komoo, Kadderi Md Desa, Hamzah Mohamad, Abdul Ghani Rafek, Tan Boon Kong
Geological Society of Malaysia (GSM)
.... Although the degree of rock mass weathering changes with depth, the general trend that the rocks are completely weathered near the surface and become less...
1991
Gravity Survey of the Northern Channel Islands
J. D. Rietman, J. K. Aldrich
Pacific Section of AAPG
... Island, Tatel and Tuve (1955) estimated that the crust-mantle boundary may be as shallow as 20 kilometers beneath the islands. This depth is approximately...
1969
Belden Shale Sections at Fossil Ridge and Mosca, Gunnison County, Colorado
Ralph Langenheim, Jr.
Earth Science Bulletin (WGA)
... and the cutbank, crosses beds of abnormal dip and strike and may cross a fault. A detailed description of the section follows: MOSCA SECTION Unit...
1978
Provenance of lower Cambrian quartz arenite on southwestern Baltica: Weathering versus recycling
Sanne Lorentzen, Tonje Braut, Carita Augustsson, Johan P. Nystuen, Jens Jahren, Niels H. Schovsbo
Journal of Sedimentary Research (SEPM)
...Provenance of lower Cambrian quartz arenite on southwestern Baltica: Weathering versus recycling Sanne Lorentzen, Tonje Braut, Carita Augustsson...
2020
Characterisation of the Weathering Profile Developed over an Amphibole Schist Bedrock in Peninsular Malaysia
J. K. Raj
Geological Society of Malaysia (GSM)
...) III + L.....J -L.. t Location of weathering profile _____ Lithological boundary Dip and strike of foliation Dip and strike of bedding I banding...
1994
The Sedimentology, Reservoir Potential and Seal Integrity of the Pale Sandstone at the Aure Scarp, Papua New Guinea
Peter Boult, George J. Carman
Papua New Guinea (PNG) Petroleum Convention Proceedings
... depth of 2500 m. Fractures within the basal Mendi Formation are nonpenetrative and syntectonicaily annealed; the sharp contact with the underiying...
1993
Abstract: Increasing the Alkalinity of the Ocean to Enhance its Capacity to Act as a Carbon Sink and to Counteract the Effect of Ocean Acidification; #90172 (2014)
T. Kruger
Search and Discovery.com
... to refine the numbers; secondly, the calculations have been performed using calcium carbonate as the source of alkalinity – if magnesite (MgCO3) or dolomite...
2014
Abstract: Groundwater Investigation: Fundamental and Application
Stefan Herwig Gödeke
Geological Society of Malaysia (GSM)
... Society of Malaysia Characterizing weathering profiles in Peninsular Malaysia Dr John Kuna Raj Date: 15 March 2023 Platform: Zoom The above talk...
2023
Detrital Opaque Oxides as Provenance Indicators in River Nile Sediments
Jill Stephanie Schneiderman
Journal of Sedimentary Research (SEPM)
..., p. 1579-1597. JOHNSSON, M.J., STALLARD, R.F., AND LUNDBERG, N., 1991, Controls on the composition of fluvial sands from a tropical weathering...
1995
Quantification of the Effects of Secondary Matrix on the Analysis of Sandstone Composition, and a Petrographic-chemical Technique for Retrieving Original Framework Grain Modes of Altered Sandstones
Ronadh Cox , Donald R. Lowe
Journal of Sedimentary Research (SEPM)
... compositions. Provenance analysis is also complicated in many cases by fundamental compositional alteration during weathering and transport. Many...
1996