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The AAPG/Datapages Combined Publications Database

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Textural Types of Evaporites in Holocene Sabkhas of Qatar and Their Geological Significance, #51153 (2015).

Jeremy Jameson

Search and Discovery.com

.... Gypsum forms vertically oriented, ‘fish-tail’ twins in vertical arrays. Halite occurs as hoppers and vertical prisms. Halite is an indicator of a marine...

2015

CARBONATE AND EVAPORITE FACIES, DOLOMITIZATION AND RESERVOIR DISTRIBUTION OF THE MISSION CANYON FORMATION, LITTLE KNIFE FIELD, NORTH DAKOTA

ROBERT F. LINDSAY, MARK S. ROTH

Williston Basin Symposium

... gypsum, in swallow-tail form (Figs. 29A and B), or benthonic foraminifera-algal mat dominated micrites (Fig. 30). Swallow-tail gypsum...

1982

Bottomset Architecture Formed In the Troughs of Dunes and Unit Bars

Christopher M. Herbert, Jan Alexander

Journal of Sedimentary Research (SEPM)

...) Sediment tail; shovel 0.6 m long. D) Sediment tails close to a 0.4-m-high unit bar avalanche face. E) Trench, dug parallel to the local trough flow...

2018

The Congo deep-sea fan: Mineralogical, REE, and Nd-isotope variability in quartzose passive-margin sand

Eduardo Garzanti, Germain Bayon, Bernard Dennielou, Marta Barbarano, Mara Limonta, Giovanni Vezzoli

Journal of Sedimentary Research (SEPM)

... either to gravity flows triggered by sediment overload and failure at the head and flanks of the canyon or to hyperpycnal currents generated by fluvial...

2021

Chapter Three: Lithofabric Classification and Distribution of Coarse-Grained Deep-water Clastic Depositional Systems

Bryan T. Cronin

AAPG Special Volumes

... in the head: Canadian Journal of Earth Sciences, v. 4, p. 523–546. Middleton, G. V., 1970, Experimental studies related to problems of flysch...

2018

The Geometry and Seismic Character of Mid-Late Miocene Carbonate Sequences, SS Area, Offshore Northwest Java

David Carter, Marihot Hutabarat

Indonesian Petroleum Association

... extending to the north. In map view, the linear buildups locally have a geometry similar to that of the tail of a comet, with respect to the elliptical...

1994

Distinction Between Dune, Beach, and River Sands from their Textural Characteristics

Gerald M. Friedman

Journal of Sedimentary Research (SEPM)

... is reflected at the coarse-grained end of the frequency distribution curve by the lack of a "tail" usually present in a normal curve, resulting in positive...

1961

Winnowing--An Important Process in the Concentration of the Stairway Sandstone (Ordovician) Phosphorites of Central Australia

Peter J. Cook

Journal of Sedimentary Research (SEPM)

...------------------------ The behavior of the fine tail of the modal grain-size histogram (fig. 11) is even more significant than the constancy of the median values...

1967

Textural and Mineralogical Sorting Relationships in Krosno Formation (Oligocene) Turbidites, Polish Carpathian Mountains

Gerald L. Shideler , Andrzej Slaczka, Rafal Unrug, Marek Wendorff

Journal of Sedimentary Research (SEPM)

... the top-of-bed and base-of-bed samples were evaluated in terms of vertical grading, associated with load differences between the front and tail sections...

1975

Size Frequency Distributions Taken From Within Sand Laminae

James T. Grace, Brian T. Grothaus, Robert Ehrlich

Journal of Sedimentary Research (SEPM)

... data are coarse-tail truncated and unimodal, although a few coarse-tail truncated bimodal distributions were observed. Boundaries between laminae were...

1978

Waulsortian-Type Buildups and Resedimented (Carbonate-Turbidite) Facies, Early Mississippian Burlington Shelf, Central Missouri

David T. King, Jr.

Journal of Sedimentary Research (SEPM)

... graded grainstone and packstone. The beds show 1) a subdivision of Bouma intervals A and B; 2) coarse-tail grading; 3) scours, flutes, and load casts...

1986

Chapter 128: Stratigraphic Architecture and Depositional Processes of a Proximal Crevasse Splay and Genetically Related, Sinuous Channel Fill, Isaac Formation, British Columbia, Canada

R. W. C. Arnott

AAPG Special Volumes

.... Arnott, 2003, Coarse-tail graded, structureless strata: Indicators of an internal hydraulic jump, in H. A. Roberts, N. C. Rosen, R. H. Fillon, and J. B...

2007

Paleostress analysis from image logs using pinnate joints as slip indicators

Alfred Lacazette

AAPG Bulletin

... mechanisms that may generate pinnate joints include tail joints (also called wing cracks) and twist-hackle tongues.Tail joints are similar to pinnate...

2009

THE ANATOMY OF NONBIOMINERALIZED CHORDATE FOSSILS: INSIGHTS FROM EXPERIMENTAL DECAY OF XENOPUS LAEVIS TADPOLES

RAGNA REDELSTORFF, PATRICK J. ORR

PALAIOS

... mudstone Laminated mudstone with algal mats Laminated mudstone Along length of tail (crude preservation) Rib region to tip of tail Base of tail Rib region...

2015

Landscape Response to a Major Ignimbrite Eruption Taupo Volcanic Center New Zealand

Robyn C. M. Smith

Special Publications of SEPM

... in situ volume Wilson and Walker 1985 important volumetrically a tail normal size a coarse 1970 ration sured water rates by 1967 compared...

1991

The Depositional Record of SmalL, Monogenetic Volcanoes Within Terrestrial Basins

James D. L. White

Special Publications of SEPM

... prop erties and the environment into which the volcanoes erupt rich magma Head and Wilson 1989 Within monogenetic volcanic fields scoria cones...

1991

Pleistocene shelf-margin delta: Intradeltaic deformation and sediment bypass, northern Gulf of Mexico

Grigoriy Perov, Janok P. Bhattacharya

AAPG Bulletin

...) Uninterpreted and interpreted cross section showing normal faulting at the head of the mass transport complex; extensional stress regime is interpreted...

2011

Border-Red Coulee Oil Field, Toole County, Montana, and Alberta, Canada

Charles E. Erdmann , John R. Schwabrow

AAPG Special Volumes

... with a hydrostatic head ranging between 2,000 and 2,300 feet. The top of the Madison limestone is an erosion surface of great extent, and the character...

1941

Chapter Eight: Proximal Submarine Fan Reservoir Architecture and Development in the Upper Jurassic Brae Formation of the Brae Fields, South Viking Graben, U.K. North Sea

Colin C. Turner, Rodrigo E. Bastidas, E. Rodger Connell, Falene E. Petrik

AAPG Special Volumes

.... Medium to thick beds of fine- to very coarse-grained sandstone, generally massive to crudely parallel laminated and locally displaying coarse-tail normal...

2018

The Colter Formation: Evidence for Miocene Volcanism in Jackson Hole, Teton County, Wyoming

Anthony D. Barnosky

Earth Science Bulletin (WGA)

... distributed throughout the rock unit. Such grading is called here coarse-tail grading. In contrast to the descriptive terms, a depositional process...

1984

Dinosaur death pits from the Jurassic of China

David A. Eberth, Xu Xing, James M. Clark

PALAIOS

... preserving the tail of a small ornithischian dinosaur and skeletons or skeletal parts of eight specimens of small nondinosaurians (two small...

2010

Road Logs Across the Uncompahgre Uplift and the Deep Fold and Fault Belt, Northern Paradox Basin, Colorado and Utah

Donald L. Rasmussen

Rocky Mountain Association of Geologists

... unmarked ‘Canyon Point Road’ and head west toward Tombstone Rock. Windmill just beyond road junction is the ‘Dubinky Well’, which was drilled...

2009

Plan-view Paleochannel Reconstruction of Amalgamated Meander Belts, Cretaceous Ferron Sandstone, Notom Delta, South-central Utah, U.S.A.

Jianqiao Wang, Janok P. Bhattacharya

Journal of Sedimentary Research (SEPM)

... of bar-head and bar tail deposits (Bridge 2006). Compound bars evolve as an amalgamation of unit bars (Smith et al. 2009). They can have morphology similar...

2018

Variation in Organic-Matter Composition and Its Impact on Organic-Carbon Preservation in the Kimmeridge Clay Formation (Upper Jurassic, Dorset, Southern England)

Richard D. Pancost, Bart E. Van Dongen, Amy Esser, Helen Morgans-Bell, Hugh C. Jenkyns, Jaap S. Sinninghe Damsté

Special Publications of SEPM

... tail-to-tail linked irregular isoprenoids, with chain lengths ranging from C34 to C40, that were also observed in the “oil shale” saturated...

2005

Sediment Gravity Flows: II Depositional Models with Special Reference to the Deposits of High-Density Turbidity Currents

Donald R. Lowe

Journal of Sedimentary Research (SEPM)

... currents. 1. Motion of the head: Canadian Jour. Earth Sci., v. 3, p. 523-546. MIDDLETON, G. V., 1967, Experiments on density and turbidity currents. HI...

1982

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