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The AAPG/Datapages Combined Publications Database

Showing 3,548 Results. Searched 196,763 documents.

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Could a stalked crinoid swim? A biomechanical model and characteristics of swimming crinoids

G. Alex Janevski, Tomasz K. Baumiller

PALAIOS

.... Smith for assistance with derivation of equation 4. This project benefited from discussions with Devapriya Chattopadhyay and other members...

2010

The Morrison and Adjacent Formations in the Four Corners Area

Lawrence C. Craig, Robert A. Cadigan

Utah Geological Association

... Salt Wash. Most of the compositional differences of the sandstone results from derivation of the sediments from different source areas. In the Four...

1958

Detrital zircon U-Pb geochronology and provenance of the Sundance Formation, western Powder River Basin, Wyoming

Joseph C. Syzdek, David H. Malone, John P. Craddock

Rocky Mountain Association of Geologists

... deformation. Figure 13. Paleogeographic reconstruction at the time of lower Sundance deposition indicating sediment derivation from cratonic sources...

2019

Pre-Intrusive Metasedimentary Rocks of the Salinian Block, California„A Paleotectonic Dilemma

Donald C. Ross

Pacific Section SEPM

... composition. My field observations, though admittedly limited, suggest a similar derivation from sedimentary material for much, if not all...

1977

Middle-Upper Devonian Sedimentation in the Canadian Arctic Islands and the Ellesmerian Orogeny

A. F. Embry

Dallas Geological Society

... no deformed chert-bearing strata are known. The derivation of the chert pebbles is best explained by reworking of pebbles from upper Famennian-Tournaisian...

1988

THE BAKOS DEPOSIT DISCOVERY - A CASE HISTORY

R. CHAPMAN, G. CURRY, AND V. SOPUCK

Saskatchewan Geological Society

... direction of 212° to 218° and containing pebbles generally of local derivation, was the preferred sampling unit. An upper till in which pebble...

1990

Autogenic Hiatus in Fluviodeltaic Successions: Geometrical Modeling and Physical Experiments

Arti Tomer, Tetsuji Muto, Wonsuck Kim

Journal of Sedimentary Research (SEPM)

... Appendix B for derivation of Equations 2 and 3. Subsequent to this “recovery point,” the shoreline continues to retreat further (x1′ → x2′), but along...

2011

The Anglo-Rouyn Deposit, La Ronge, Saskatchewan: A Besshi-type Massive Sulphide Deposit

R. Gwilym Roberts and R.O. Maxeiner

Saskatchewan Geological Society

...), as it evolved from a period of mafic volcanism and greywacke-type sedimentation of proximal derivation, into a time in which clastic sediments competed...

1999

Late Cretaceous Paleogeography of the Salinian Block, California

D. G. Howell, J. G. Vedder

Pacific Section SEPM

... as identifying the provenance of the sandstones. Some conglomerate assemblages are exclusively of local derivation, such as those in the Slates Hot Springs...

1978

Integración de Nuevas Tecnologías de Registros y Procesamiento para Mejorar la Caracterización Geológica y Petrofísica en Reservorios de Litologías Complejas [PAPER IN SPANISH] Integration of New Log Technologies and Processes to Improve Geological and P

Enrique Diaz, Jesús Padilla, Humberto Dugarte, Rómulo Carmona

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... for Derivation of Formation Lithology and Mineralogy” 2006 SPE Annual Technical Conference and Exhibition. SPE. San Antonio, TX. USA. 13p. 7 DIAZ, E...

2008

Geological Significance of Granitic Fragments Found from Pumice Flow of 1883 Eruption at the Krakatau Group, Indonesia

Noboru Ōba, Katsutoshi Tomita, Masahiko Yamamoto, Mohamad Istidjab, Adjat Sudradjat, Totong Suhanda

Geological Society of Malaysia (GSM)

...r/’ ^'’Sr ratio of 0.7139, very much higher than that for any other analyzed lava from the Sunda arc, and such a ratio argues for crustal derivatio...

1986

“Sorting Fossil Vertebrate Iconography in Paleoart”

Allen A. Debus

Bulletin of South Texas Geological Society

..., Gesner’s publication documents an early derivation for the study of fossil vertebrates, founded in a developing tradition of natural history...

2003

Factors Influencing the Distribution and Facies of Cenozoic Marine Sediments Along the West Coast of British Columbia, Canada

James M. Drummond

Pacific Section SEPM

... washed when deposited, but are compositionally immature, and appear to reflect both rapid deposition and fairly direct derivation from an igneous source...

1979

Tin/Tungsten-Bearing Granites in South China and Their Metallogenetic Relations

Xu Keqin, Zhu Jinchu

Geological Society of Malaysia (GSM)

... China. The relatively high background values of such metallic elements provide favourable conditions for derivation of the ore-forming materials...

1986

Influence of Elastoplastic Embedment on CSG Production Enhancement Using Graded Particle Injection

Zhenjiang You, Duo Wang, Christopher Leonardi, Raymond Johnson Jr, Pavel Bedrikovetsky

Australian Petroleum Production & Exploration Association (APPEA) Journal

... aperture is equal to the particle size. A detailed derivation of the model is presented in Keshavarz et al. (2014). The radial pressure distribution, p...

2019

Exceptional Preservation of Insects in Lacustrine Environments

Dena M. Smith

PALAIOS

..., Molecular preservation of plant and insect cuticules from the Oligocene Enspel Formation, Germany: Evidence against derivation of aliphatic polymer...

2012

Generation and Migration of Hydrocarbons in the Maracaibo Basin, Venezuela

Suhas Talukdar, Oswaldo Gallango, Marcel Chin-A-Lien

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... their derivation from the marine organic matter source and their maturity. These oils have also been correlated with the unaltered marine oils based...

1985

Diatoms, Silicoflagellates and Palynomorphs from Holocene Sediments of Basins in the Southern California Continental Borderland

Robert G. Arends, Sarah Pierce Damassa

Pacific Section SEPM

... of the dinoflagellates found within the Continental Borderland basins provide some indication of the possible derivation of the sediments. The environmental...

1980

Miocene Carbonate Rocks of Sibolga Basin, Northwest Sumatra

Robert Rose

Indonesian Petroleum Association

... micrite, argillaceous to very argillaceous, calcarenitic, fossiliferous and locally arenaceous (terrigenous derivation). The included fauna suggests open...

1983

Chemical Variation of Biotite and Hornblende in Some Malaysian and Sumatran Granitoids

Charles S. Hutchison

Geological Society of Malaysia (GSM)

... and range from 0.7159 to 0.7512 (Liew and McCulloch, 1985), clearly indicating derivation from a continental crustal infrastructure. The Rb vs (Nb + Y...

1989

Notes on the Glenn Formation of Oklahoma with Consideration of New Paleontologic Evidence

George H. Girty, P. V. Roundy

AAPG Bulletin

... as for, rather than as against, their derivation from his Springer member, which is paleontologically a blank, were it not that this fauna presents...

1923

Recycled Detrital Quartz Grains are Sedimentary Rock Fragments Indicating Unconformities: Examples from the Chhattisgarh Supergroup, Bastar Craton, India

Abhijit Basu, Juergen Schieber, Sarbani Patranabis-Deb, Pratap Chandra Dhang

Journal of Sedimentary Research (SEPM)

... quantities in successions of quartz arenites indicates derivation from one or more sedimentary units from below an intrabasinal unconformity...

2013

Petrology and geochemistry of Devono-Carboniferous volcanic rocks in Nova Scotia

J. Dostal, J. D. Keppie, C. Dupuy

Atlantic Geology

..., in particular, their derivation from a similar source. Kay and Gast (1973) and Frey et al. (1978) have shown that alkali basalts, with highly fractionated REE...

1983

Developing porosity–permeability transforms in two important oil-bearing formations in Ohio: The Clinton Sandstone and the Copper Ridge Dolomite

Jared Hawkins, Srikanta Mishra, and Bryan O’Reilly

Environmental Geosciences (DEG)

... in transform derivation. Figure 7. Box plots of the Clinton Sandstone data set showing minimum, KP10, KP50, KP90, and maximum values for all data combined...

2019

Field Guide to the Mesozoic-Cenozoic Convergent Margin of Northern California: Objectives and Geologic Overview

S. A. Graham, R. V. Ingersoll

Pacific Section of AAPG

... Cretaceous sandstones to the increased quartz and potassium feldspar content of the Albian-Aptian Lodoga Formation, suggestive of derivation from deeper...

1981

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