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The AAPG/Datapages Combined Publications Database

Showing 1,173 Results. Searched 200,635 documents.

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Mineralogical, Geochemical (REE), and Isotopic (K-Ar, Rb-Sr, d18O) Evolution of the Clay Minerals from Faulted, Carbonate-rich, Passive Paleomargin of Southeastern Massif Central, France

Norbert Clauer , Francis Weber , Francois Gauthier-Lafaye , Theofilos Toulkeridis , , Jean-Pierre Sizun

Journal of Sedimentary Research (SEPM)

... 40Ar/36Ar ratio of the blank of the extraction line and the mass spectrometer, which averaged 299.5 ± 1.0 (2s). The K-Ar ages were calculated using...

1997

Origin of Fibrous Gypsum in the Newark Rift Basin, Eastern North America

Mohamed El Tabakh , B. Charlotte Schreiber , John K. Warren

Journal of Sedimentary Research (SEPM)

... uncertainties were less than 0.00002. The total Sr blank for the analytical procedure was less than 0.02 ng. This new procedure was developed and provided...

1998

Correlation of Sedimentary Basins Across the North Atlantic as Obtained from Gravity and Magnetic Data, and Its Relation to the Early Evolution of the North Atlantic: Chapter 9: North Atlantic Perspectives

J. Verhoef, S. P. Srivastava

AAPG Special Volumes

... gap. This blank area is not present in the bathymetry and Bouguer anomaly reconstructions. The overlap in the Bay of Biscay may be partly due...

1989

Coaxial Stretching or Lithospheric Simple Shear in the North Sea? Evidence from Deep Seismic Profiling and Subsidence: Chapter 33: North Sea and Barents Shelf

Simon L. Klemperer, Nicky White

AAPG Special Volumes

... the reflection Moho the lithospheric mantle is acoustically blank except for a zone of dipping reflectors at each end of the profile. The intramantle...

1989

Siderite Concretions from Nonmarine Shales (Westphalian A) of the Pennines, England: Controls on Their Growth and Composition

Q.J. Fisher , R. Raiswell , J.D. Marshall

Journal of Sedimentary Research (SEPM)

... in solution was assumed to be from dissolved francolite), blank composition, and silicate dissolution in order to determine the bulk chemical composition...

1998

Holocene Transgressive Stratigraphy of a Macrotidal Flat in the Southeastern Yellow Sea: Gomso Bay, Korea

Y.H. Kim , H.J. Lee , S.S. Chun , S.J. Han , S.K. Chough

Journal of Sedimentary Research (SEPM)

... lamination (upper part). Black area (near center) represents a blank formed by picking peat. (HJ-3, 318-348 cm). C) Unit I; intensely bioturbated mud...

1999

Tidal Sedimentology and Estuarine Deposition of the Proterozoic Big Cottonwood Formation, Utah

Todd A. Ehlers, Marjorie A. Chan

Journal of Sedimentary Research (SEPM)

... of Proterozoic succession B and C of western North America. Blank areas represent missing record, or igneous rocks not shown on diagram. Modified from Link...

1999

Sandstone Petrology and Geochemistry of the Turpan Basin (NW China): Implications for the Tectonic Evolution of a Continental Basin

Lei Shao , Karl Stattegger , Carl-Dieter Garbe-Schoenberg

Journal of Sedimentary Research (SEPM)

..., JSD-1), drift control samples, duplicate samples, and blank samples. Accuracy and precision could be estimated, and monitored, from the control samples...

2001

Development of Magnesian Carbonates in Quaternary Soils on the Island of Hawaii

Charles E. Whipkey,, Rosemary C. Capo, Jean C.C. Hsieh, Oliver A. Chadwick

Journal of Sedimentary Research (SEPM)

...). Strontium was separated using SrSpec resin; total procedural Sr blank was < 1 ng. 87Sr/86Sr ratios were measured using a Finnigan MAT 262 thermal...

2002

Classification of Australian Clastic Coastal Depositional Environments Based Upon a Quantitative Analysis of Wave, Tidal, and River Power

P.T. Harris, A.D. Heap, S.M. Bryce, R. Porter-Smith, D.A. Ryan, D.T. Heggie

Journal of Sedimentary Research (SEPM)

... based on the Scheffe's test for the difference in means at the 95% confidence level, applied using the statistical software package STATISTCATM. Blank...

2002

Geochemistry of Sandstones from the Upper Miocene Kudankulam Formation, Southern India: Implications for Provenance, Weathering, and Tectonic Setting

J.S. Armstrong-Altrin, Yong Il Lee, Surendra P. Verma, S. Ramasamy

Journal of Sedimentary Research (SEPM)

... direction, showing sample locations. Stratigraphic section names are according to the nearest village (Fig. 1B). Blank crossed space in the Manapaud section...

2004

Relationships Between Composition of Organic Matter, Depositional Environments, and Sea-Level Changes in Backarc Basins, Central Japan

Akiko Omura, Koichi Hoyanagi

Journal of Sedimentary Research (SEPM)

... gas. Carbon isotope results are expressed as per mil (‰) relative to the V-PDB standard. We measured a blank with each sample and a working standard...

2004

Middle Permian Telodiagenetic Processes in Neoproterozoic Sequences, Tandilia System, Argentina

Patricia Eugenia Zalba, Marcelo Manassero, Emmanuel Laverret, Daniel Beaufort, Alain Meunier, Martin Morosi, Laura Segovia

Journal of Sedimentary Research (SEPM)

... determinations. The blank of the extraction line and the mass spectrometer were also periodically controlled, the amount of residual 40Ar being...

2007

Early Paleozoic (Arbuckle) Overlap, Southern Mid-Continent, United States

Philip A. Chenoweth

AAPG Bulletin

... Precambrian (1.95 billion years) in northern Kansas to Early Cambrian in southern Oklahoma (see Fig. 4). Blank areas are unknown or are underlain...

1968

Stratigraphic Applications of Dipmeter Date in Mid-Continent

R. L. Campbell, Jr.

AAPG Bulletin

... (Fig. 10d). The patterned segments of Figure 10d represent data from the appropriate patterns on Figure 11b. The blank segments indicate the data...

1968

Storm- and Tide-Dominated Shorelines in Cretaceous Moosebar-Lower Gates Interval--Outcrop Equivalents of Deep Basin Gas Trap in Western Canada

Dale A. Leckie, Roger G. Walker

AAPG Bulletin

...) with subsurface sections (locs. 2 to 10). Nonmarine members and formations are stippled. Cadomin is conglomerate. Marine units have been left blank...

1982

Mud Volcanoes, Shale Diapirs, Wrench Faults, and Melanges in Accretionary Complexes, Eastern Indonesia

A. J. Barber , S. Tjokrosapoetro , T. R. Charlton

AAPG Bulletin

... blank), reef terraces, photolineaments, and outcrops of "Bobonaro Scaly Clay" interpreted as shale diapirs, in places with associated mud volcanoes...

1986

Dissolution of Granitic Sand by pH-Buffered Carboxylic Acids: A Flow-Through Experimental Study at 100 degrees C and 345 Bars (1)

CHRISTY L. REED and ANDREW HAJASH, JR.

AAPG Bulletin

... as a "blank," investigated the changes in fluid chemistry as 0.01 molal oxalic acid alone (no solid) was maintained at 100 degrees C and 345 bars...

1992

Evolution of stratigraphic sequences in multisegmented continental rift basins: Comparison of computer models with the basins of the East African rift system

Juan Contreras, Christopher H. Scholz

AAPG Bulletin

... toward the hanging-wall depression, the blank area in the middle of the figure. (B) Fluvial network of the Ruhuhu River, central Malawi rift. See...

2001

Oil and gas geochemistry and petroleum systems of the Fort Worth Basin

Ronald J. Hill, Daniel M. Jarvie, John Zumberge, Mitchell Henry, Richard M. Pollastro

AAPG Bulletin

... programming at 35C for 20 min, 8C/min, to 300C, 0.5325C, and held for 20 min. Components are detected by an FID held at 330C. A blank run immediately...

2007

Origin and accumulation of CO2 and its natural displacement of oils in the continental margin basins, northern South China Sea

Baojia Huang, Hui Tian, Hao Huang, Jihai Yang, Xianming Xiao, and Li Li

AAPG Bulletin

... and GC retention times with previous documents. In the process of analysis, the blank experiment was performed to ensure that there are no contaminants...

2015

Application of U–Pb detrital zircon geochronology to drill cuttings for age control in hydrocarbon exploration wells: A case study from the Rukwa Rift Basin, Tanzania

Hannah Hilbert-Wolf, Eric Roberts, Bob Downie, Cassy Mtelela, Nancy J. Stevens, and Patrick O’Connor

AAPG Bulletin

... analysis. The first 30 s were for gas blank measurement, and during the final 40 s the shutter was opened to allow for sample ablation and measurement...

2017

Seismic geomorphology and sedimentology of a fluvial-dominated delta: Implications for the Neogene reservoirs, offshore Bohai Bay Basin, China

Shang Xu, Fang Hao, Changgui Xu, Huayao Zou, and Baishui Gao

AAPG Bulletin

... shows uniform morphology (blank zones) on the coherence cube slice (Figure 8). This seismic facies also exhibits high RMS amplitudes, which display...

2019

Experimental determination of porosity and methane sorption capacity of organic-rich shales as a function of effective stress: Implications for gas storage capacity

Garri Gaus, Reinhard Fink, Alexandra Amann-Hildenbrand, Bernhard M. Krooss, and Ralf Littke

AAPG Bulletin

... plug was replaced by a stainless steel disk. In addition, blank expansion tests were performed with the measuring gas (methane) up to a pore pressure...

2021

Seismic reflection analysis of the deeply buried Neoproterozoic rift basin beneath Sichuan Basin, southern China

Jing Hu, Dong Jia, Guoqi Wei, Wuren Xie, Yiquan Li, Nan Su, Zhuxin Chen, Wei Yang, Zhigang Li, Chuang Sun, and Yong Zhang

AAPG Bulletin

... saucer-shaped (Figure 10A) or inclined sheet-like (Figure 10B) geometries in 3-D. They typically generate “blank” seismic zones above and below them...

2022

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