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The AAPG/Datapages Combined Publications Database

Showing 10,864 Results. Searched 196,436 documents.

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Chapter 5: Jurassic Silicic Volcanism and Associated Continental-arc Basin in Northwestern Colombia (Southern Boundary of the Caribbean Plate)

Carlos A. Zuluaga, Alejandro Pinilla, Paul Mann

AAPG Special Volumes

... samples they still have signs of weathering. Sample chips (200–500 g) were cleaned and trimmed to remove weathering surface and veins and crushed...

2015

Stratigraphy and Formation of Holocene Dolomitic Carbonate Deposits of the Coorong Area, South Australia

C. C. Von Der Borch

Journal of Sedimentary Research (SEPM)

... of magnesium is hypothesized to be from weathering of areally extensive Quaternary basic volcanics which occur in groundwater source areas marginal...

1976

Recent Marine Sediments and Environments of Northwest Gulf of Mexico

Norman N. Greenman , Rufus J. LeBlanc

AAPG Bulletin

...) deposits dip under late Recent sediments near coast. Prominent subsurface contact resulted from weathering and oxidation of Pleistocene deposits...

1956

Structural Geology, Cochas to Yauricocha, Central High Andes, Peru

Thomas S. Szekely

AAPG Bulletin

... zones decollement at depth may control the structural pattern. The age of the tectonism is early to middle Tertiary. Comparisons are shown between...

1969

Correlations Within The Mississippian of The Front Ranges of The Rocky Mountains

D. H. Oswald

CSPG Bulletin

... unit, about 3 feet thick, is a slightly calcareous, brown weathering siltstone. Although the formation is not generally well exposed in accessible...

1963

Application of Interferometric MASW to a 3D-3C Seismic Survey

Shaun Strong, Steve Hearn

Petroleum Exploration Society of Australia (PESA)

... velocities it is difficult to correctly identify the base of weathering. Therefore, we have calculated the statics to a depth below the deepest...

2016

Clays and Clay Minerals of the Santa Ana River Drainage Basin, California

G. M. McMurtry, Pow-Foong Fan

Journal of Sedimentary Research (SEPM)

... is weathering in transit. Major minerals in the riverbed are montmorillonite, mica, plagioclase, K-feldspar and quartz. Present in lesser amounts are kaolinite...

1974

ABSTRACT: Geochemistry and Detrital Zircon Geochronology of Upper Paleozoic Loessite within the Ancestral Rocky Mountains: Implications for Paleoclimate; #90012 (2003)

M. J. SOREGHAN, G. S (LYNN) SOREGHAN, M. A. HAMILTON

Search and Discovery.com

...) suggested that large-scale production of silt is attributable primarily to glacial processes and intense weathering in high, cold, mountainous regions (cf...

2003

PALEOSOLS AND ICHNOFOSSILS OF THE UPPER PENNSYLVANIAN…LOWER PERMIAN MONONGAHELA AND DUNKARD GROUPS (OHIO, USA): A MULTI-PROXY APPROACH TO UNRAVELING COMPLEX VARIABILITY IN ANCIENT TERRESTRIAL LANDSCAPES

DANIEL I. HEMBREE, JARED J. BOWEN

PALAIOS

... with distinct Bk horizons and preserved surface (A or A/B) horizons, the depth of the top of the Bk horizon beneath the estimated top of the paleosol profile...

2017

Sedimentary Petrology and Mineral Chemistry, Woodlark Basin-Solomon Islands Offshore Region

Keith A. W. Crook, Gordon R. Taylor

Circum Pacific Council Publications

... and Kirst, 1975) that resulted from a submarine eruption at a depth >500 m (McBirney, 1963). The strong lamination may result from grain flow or liquefied...

1987

Abstract: Mesozoic Stratigraphy - SW Margin of the Eromanga Basin

G. J. Ambrose, R. B. Flint

Petroleum Exploration Society of Australia (PESA)

... to the concept of a weathering event separating the two units on the southwestern basin margin. Firstly, the Algebuckina Sandstone is invariably kaolinised...

1982

ABSTRACT: GC-IRMS as a Potential Tool for the Determination of the Source of Hydrocarbons in Contaminated Soils and Waters

L.Mansuy, R.P.Philp, J.Allen, M.Kombrink

The Society for Organic Petrology (TSOP)

... difficult and sometimes unsuccessful since an oil spilled in the environment is quickly affected by the weathering processes and loses its characteristics...

1996

Reflections on the Interpretation of Heavy Mineral Analyses

Tj. H. Van Andel

Journal of Sedimentary Research (SEPM)

... modify the heavy mineral composition and limit the interpretation of the assemblage in terms of source area conditions: (1) weathering, (2) abrasion, (3...

1959

The Flotation Phenomenon--A By-Passing and Sorting Process: NOTES

Karl H. Wolf

Journal of Sedimentary Research (SEPM)

... of the soil is lateritic to bauxitic which has been formed by chemical weathering of sedimentary rocks, for example sub-graywackes. Some...

1961

Oriented Wave-Splash Fretwork in Sandstone: NOTES

Sam L. Agron

Journal of Sedimentary Research (SEPM)

... are present; the fretwork is present on the seaward (dip) slope of the second ridge back from the shoreline, and only on the upper part of the slope (fig. 2...

1963

Seismic Refraction Study on Sedimentary and Granitic Terrain

Samsudin Hj Taib

Geological Society of Malaysia (GSM)

... are found, scattering of the arrivals time are noticeable. This will affect the depth estimation. In areas where boulders are found in the weathering profile...

1997

Weathering of the Sioux Quartzite Near New Ulm, Minnesota: REPLY

George S. Austin

Journal of Sedimentary Research (SEPM)

...Weathering of the Sioux Quartzite Near New Ulm, Minnesota: REPLY George S. Austin 1971 Vol. 41 No. 2. (June), AUSTIN, G. S., 1970, Weathering...

1971

Possible Quartz Synthesis During Weathering of Quartz-free Mafic Rock, Jasper County, Georgia

Gene D. Robinson, Jr.

Journal of Sedimentary Research (SEPM)

...Possible Quartz Synthesis During Weathering of Quartz-free Mafic Rock, Jasper County, Georgia Gene D. Robinson, Jr. 1980 Vol. 50 No. 1. (March...

1980

Abstracts: Besa River Formation, Western Liard Basin, British Columbia; Geochemistry and Regional Correlations; #90173 (2015)

Filippo Ferri, Adrian Hickin, and David Huntley

Search and Discovery.com

... distinctive pale grey weathering siliceous siltstone which is tentatively correlated with the Fort Simpson Formation. A hand held gamma ray spectrometer...

2015

What Is the Role of Carbon Dioxide in Climate Change during Earth History? #110057 (2008)

Eric J. Barron

Search and Discovery.com

... weathering and burial of organic matter. On other time scales, climate change itself has a significant impact on plant productivity and burial of organic...

2008

Guidelines to Prevention of Slope Failure Related Disasters in Granitic Bedrock Areas of Malaysia

J. K. Raj

Geological Society of Malaysia (GSM)

... crops and grass. The failures have mainly involved weathered materials from morphological Zones I and II of the weathering profiles (or rock mass...

2003

Porosity Prediction in Sandstones Using Erosional Unconformities

G. Shanmugam

AAPG Special Volumes

... of poor replenishment of carbon dioxide, high amounts of total dissolved solids, and sluggish circulation. Depth of Weathering Meteoric waters in basins...

1990

Late Cretaceous and Tertiary Burial History, Central Texas

Peter R. Rose

GCAGS Journal

... Interior Seaway; (5) Estimation of burial depth from thermal maturity of Eagle Ford organic shales (overlying the Edwards by approximately 150 feet...

2016

Origin and Development of Karstinselberge, with Particular Reference to Some South East Asian Evidence

C. R. Twidale

Geological Society of Malaysia (GSM)

... be explained by the changes in location and geometry of fractures with depth. Drogue and Bidaux (1992) suggest deep weathering beneath a planation surface...

2006

Petroleum geology of Carboniferous volcanic weathered crust in northern Xinjiang, China

Lianhua Hou, Chun Yang, Fan Yang, Xia Lou, Yanzhao Wei

CSPG Bulletin

... of the Carboniferous, these rocks were uplifted, underwent denudation and weathering, and then formed a weathered crust. All types of volcanic rocks might form...

2015

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