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A seismic interpretation study of reflection profiles was undertaken to identify sedimentary and structural components of the tectonic development of the West Greenland continental margin. The new structural framework reveals a long and complex tectono-stratigraphy and evolution.

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In the coming year, the Energy Minerals Division is looking to improve and expand its information delivery system. EMD also is seeking volunteers to fill a number of vacant section and region councilor positions.
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The Upper Jurassic Smackover formation in northern Louisiana and surrounding states has been explored and drilled for decades, but has only recently seen the sophisticated approach needed to decipher its challenging geology.

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AAPG is committed to connecting promising original research with much-needed funding and is continually seeking – and finding – new ways to make that potential a reality.

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Imagine the Mediterranean Sea drying out. Imagine the late Permian, as the Earth warmed and dried, and much of life faced extinction. Now put the two together, and you have the basis of an analog examined in the presentation “The Messinian Mediterranean Crisis: A Model for the Permian Delaware Basin?” at the upcoming AAPG International Conference and Exhibition in Istanbul, Turkey.

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Over the last two decades, numerical and physical experiments have repeatedly generated insights that contradict the sequence stratigraphic model that is near-universally used to interpret ancient strata in terms of relative changes in sea-level. This presentation will re-examine Upper Cretaceous strata (Blackhawk Formation, Castlegate Sandstone, Mancos Shale) exposed in the Book Cliffs, east-central Utah, USA, which are widely used as an archtype for the sequence stratigraphy of marginal-marine and shallow-marine strata. Stratigraphic architectures in these strata are classically interpreted to reflect forcing by relative sea level, but key aspects can instead be attributed to autogenic behaviors and variations in sediment flux.

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This lecture presents a history of sea-level changes focusing on the last 100 Myr. Prior to the Oligocene (ca. 33.5 Ma), the Earth had been a warm, high CO2 Greenhouse world that was largely ice-free back to 260 Ma, though recent evidence suggests that 15-25 m sea-level changes observed may have been caused by growth and decay of small, ephemeral ice sheets. The growth and decay of a continental scale ice sheet in Antarctica caused 50-60 m variations on the 106 yr scale beginning ~33.5 million years ago (Ma).

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IODP Expedition 313 (New Jersey shallow shelf) cored a 3-hole transect across Miocene seismic clinothems (prograding sigmoidal sequences) in topset, foreset, and bottomset locations, providing an opportunity to integrate seismic, log, and core data into a sequence stratigraphic framework. Our interpretations of sequences and systems tracts are made independent of any preconceived relative sea-level curves. Rather, we use basic seismic, core, and stratigraphic principles to recognize sequence boundaries, Maximum Flooding Surface, transgressive surfaces, and facies successions within sequences.

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Sequence stratigraphy is the study of genetically related facies within a framework of chronostratigraphically significant surfaces. Paleontologic data, integrated with seismic and well log data, are an integral part of sequence stratigraphic analysis.

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Organic-carbon–rich shales of the lower Marcellus Formation were deposited at the toe and basinward of a prograding clinothem associated with a Mahantango Formation delta complex centered near Harrisburg, Pennsylvania. Distribution of these organic-carbon–rich shales was influenced by shifts in the delta complex driven by changes in rates of accommodation creation and by a topographically high carbonate bank that formed along the Findlay-Algonquin arch during deposition of the Onondaga Formation. Specifically, we interpret the Union Springs member (Shamokin Member of the Marcellus Formation) and the Onondaga Formation as comprising a single third-order depositional sequence. The Onondaga Formation was deposited in the lowstand to transgressive systems tract, and the Union Springs member was deposited in the transgressive, highstand, and falling-stage systems tract. The regional extent of parasequences, systems tracts, and the interpreted depositional sequence suggest that base-level fluctuations were primarily caused by allogenic forcing—eustasy, climate, or regional thermal uplift or subsidence—instead of basement fault reactivation as argued by previous workers. Paleowater depths in the region of Marcellus Formation black mudrock accumulation were at least 330 ft (100 m) as estimated by differences in strata thickness between the northwestern carbonate bank and basinal facies to the southeast. Geochemical analysis indicates anoxic to euxinic bottom-water conditions. These conditions were supported by a deep, stratified basin with a lack of circulation.
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In-Person Training
Bucharest Romania 17 May, 2016 18 May, 2016 28757 Desktop /Portals/0/PackFlashItemImages/WebReady/ExxonMobil-Student-Workshop.jpg?width=100&height=100&mode=crop&anchor=middlecenter&quality=75amp;encoder=freeimage&progressive=true Student, Sedimentology and Stratigraphy, Sequence Stratigraphy, Geophysics, Seismic, Reservoir Characterization, Engineering, Seismic Attributes, Clastics, Marine, Petrophysics and Well Logs
 
Bucharest, Romania
17-18 May 2016
This course is designed to teach advanced students the principles, concepts and application of sequence stratigraphy as applied to siliciclastic facies in non-marine, shallow marine, and deep water environments.
Three Forks Montana United States 23 May, 2016 25 May, 2016 13422 Desktop /Portals/0/PackFlashItemImages/WebReady/hero-lodgepole-bakken-petroleum-system.jpg?width=100&height=100&mode=crop&anchor=middlecenter&quality=75amp;encoder=freeimage&progressive=true Sedimentology and Stratigraphy, Petrophysics and Well Logs, Geochemistry and Basin Modeling, Source Rock, Sequence Stratigraphy
 
Three Forks, Montana, United States
23-25 May 2016

This field seminar will give participants an overview about the geology, reservoir engineering and operation aspects of the Lodgepole-Bakken-Three Forks Petroleum System.  Excellent outcrops illustrate how facies, reservoir properties and rock strength can vary along a lateral well bore. Engineers, geologists and operators will find this especially interesting.

Calgary Alberta Canada 18 June, 2016 18 June, 2016 23817 Desktop /Portals/0/PackFlashItemImages/WebReady/sc7-ace16-hero.jpg?width=100&height=100&mode=crop&anchor=middlecenter&quality=75amp;encoder=freeimage&progressive=true Member, Student, Short Courses, Conventions, Pre-Convention, Sedimentology and Stratigraphy, Sequence Stratigraphy
 
Calgary, Alberta, Canada
18 June 2016

This workshop combines interactive lectures and exercises addressing the expression of depositional sequences in mudstones on seismic, well-log, core and outcrop data. Examples include the New Albany Shale, Barnett Shale, Shublik Formation, Kimmeridge Formation, Kingak Formation, Hue Shale, Mowry Shale and Monterey Formation. Participants will practice recognition and correlation of significant stratigraphic packages through seismic stratigraphy, stacking pattern analysis of well-log, core and outcrop data, shale sedimentology, thin-section and geochemical data.

Calgary Alberta Canada 18 June, 2016 19 June, 2016 23863 Desktop /Portals/0/PackFlashItemImages/WebReady/sc-basin-analysis-hero.jpg?width=100&height=100&mode=crop&anchor=middlecenter&quality=75amp;encoder=freeimage&progressive=true Member, Student, Sedimentology and Stratigraphy, Sequence Stratigraphy, Reservoir Characterization, Engineering, 3D Seismic, Seismic Attributes
 
Calgary, Alberta, Canada
18-19 June 2016

This course reviews the basin analysis methods and workflows used in oil and gas exploration, with special emphasis on the integration of geologic, geophysical and geochemical data. The workflows are built on three main disciplines: sedimentology, sequence stratigraphy and seismic geomorphology. Logs and 2-D/3-D seismic will be used to characterize clastic and carbonate depositional systems through time and space in the principal sedimentary basin types, including extensional basins (rifts, growth fault margins and passive margins), foreland basins and confined basins associated with mud and salt diapirism.

Calgary Alberta Canada 18 June, 2016 19 June, 2016 23869 Desktop /Portals/0/PackFlashItemImages/WebReady/wiki-biostratigraphy-in-sequence-stratigraphy-hero.jpg?width=100&height=100&mode=crop&anchor=middlecenter&quality=75amp;encoder=freeimage&progressive=true Member, Student, Short Courses, Conventions, Pre-Convention, Sedimentology and Stratigraphy, Sequence Stratigraphy
 
Calgary, Alberta, Canada
18-19 June 2016

This course is designed to teach graduate students the principles, concepts and methods of sequence stratigraphy. Sequence stratigraphy is an informal chronostratigraphic methodology that uses stratal surfaces to subdivide the stratigraphic record. This methodology allows the identification of coeval facies, documents the time-transgressive nature of classic lithostratigraphic units and provides geoscientists with an additional way to analyze and subdivide the stratigraphic record.

Calgary Alberta Canada 23 June, 2016 25 June, 2016 23973 Desktop /Portals/0/PackFlashItemImages/WebReady/ACE-2016-FT-14-hero.jpg?width=100&height=100&mode=crop&anchor=middlecenter&quality=75amp;encoder=freeimage&progressive=true Field Trips, Conventions, Post-Convention, Sedimentology and Stratigraphy, Sequence Stratigraphy
 
Calgary, Alberta, Canada
23-25 June 2016

This two and a half day post-convention field trip will examine Upper Devonian (Frasnian) shallow water carbonate platform and time equivalent basinal strata (Winterburn, Woodbend and Beaverhill Lake Groups subsurface) at a number of well exposed outcrops in the Main and Front Ranges of West Central Alberta.

Lagos Nigeria 11 July, 2016 13 July, 2016 21922 Desktop /Portals/0/PackFlashItemImages/WebReady/sequence-stratigraphy-concepts-principles-applications-clastic-depositional-environments-02feb-2016-hero.jpg?width=100&height=100&mode=crop&anchor=middlecenter&quality=75amp;encoder=freeimage&progressive=true Engineering, Reservoir Characterization, Geochemistry and Basin Modeling, Source Rock, Petrophysics and Well Logs, Sedimentology and Stratigraphy, Clastics, Conventional Sandstones, Deep Sea / Deepwater, Deepwater Turbidites, Eolian Sandstones, Estuarine Deposits, Fluvial Deltaic Systems, High Stand Deposits, Incised Valley Deposits, Lacustrine Deposits, Low Stand Deposits, Marine, Regressive Deposits, Sheet Sand Deposits, Shelf Sand Deposits, Slope, Transgressive Deposits, Sequence Stratigraphy, Deep Basin Gas, Diagenetic Traps, Stratigraphic Traps, Structural Traps
 
Lagos, Nigeria
11-13 July 2016
Sequence stratigraphy provides a framework for the integration of geological, geophysical, biostratigraphic and engineering data, with the aim of predicting the distribution of reservoir, source rock and seal lithologies. It gives the geoscientist a powerful predictive tool for regional basin analysis, shelf-to-basin correlation, and characterization of reservoir heterogeneity. This course will examine the underlying geological principles, processes and terminology related to sequence stratigraphic interpretation. The strength of this course is the application of these basic principles to subsurface datasets in a series of well-founded exercises.
Grand Junction Colorado United States 28 September, 2016 05 October, 2016 86 Desktop /Portals/0/PackFlashItemImages/WebReady/fs-sedimentology-and-sequence-stratigraphic-response-of-paralic-deposits.jpg?width=100&height=100&mode=crop&anchor=middlecenter&quality=75amp;encoder=freeimage&progressive=true Sedimentology and Stratigraphy, Clastics, Sequence Stratigraphy, Fluvial Deltaic Systems, Estuarine Deposits, Marine, Incised Valley Deposits, High Stand Deposits, Low Stand Deposits, Petrophysics and Well Logs
 
Grand Junction, Colorado, United States
28 September - 5 October 2016

Participants will learn through the use of spectacular outcrops, subsurface datasets, and stratigraphic modeling how these systems tracts and key surfaces (flooding surfaces and sequence boundaries) may be recognized.

Online Training
10 May, 2012 10 May, 2012 1486 Desktop /Portals/0/PackFlashItemImages/WebReady/oc-es-genetic-sequences-in-eagle-ford-austin.jpg?width=100&height=100&mode=crop&anchor=middlecenter&quality=75amp;encoder=freeimage&progressive=true
 
10 May 2012

Recognition and Correlation of the Eagle Ford, Austin Formations in South Texas can be enhanced with High Resolution Biostratigraphy, fossil abundance peaks and Maximum Flooding Surfaces correlated to Upper Cretaceous sequence stratigraphic cycle chart after Gradstein, 2010.

17 February, 2011 17 February, 2011 1469 Desktop /Portals/0/PackFlashItemImages/WebReady/oc-es-siliclastic-sequence-stratigraphy.jpg?width=100&height=100&mode=crop&anchor=middlecenter&quality=75amp;encoder=freeimage&progressive=true
 
17 February 2011

This presentation is designed for exploration/production geologists and geological managers or reservoir engineers.

14 February, 3000 14 February, 3000 7817 Desktop /Portals/0/PackFlashItemImages/WebReady/oc-es-generic-hero.jpg?width=100&height=100&mode=crop&anchor=middlecenter&quality=75amp;encoder=freeimage&progressive=true
 
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