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The AAPG/Datapages Combined Publications Database
Showing 1,906 Results. Searched 200,756 documents.
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