Sequence stratigraphy of the cenozoic pannonian basin, hungary. This workshop presents the concepts and practical applications of sequence stratigraphy for petroleum exploration and production. Introduction to sequence stratigraphy small stratigraphy. Published online by the canadian society of petroleum. Sequence stratigraphy is a branch of geology that attempts to subdivide and link sedimentary deposits into unconformity bound units on a variety of scales and. Sequence stratigraphy is a branch of geology that attempts to subdivide and link sedimentary deposits into unconformity bound units on a variety of scales and explain these stratigraphic units in terms of variations in sediment supply and variations in the rate of change in accommodation space relative sea level, the combination of eustatic sea level and tectonic subsidence. Advances in sequence stratigraphy, volume 2 1st edition. Alongside 3d seismic, longreach horizontal drilling and the application of plate tectonics to exploration, sequence stratigraphy has been one of the greatest scientific advances within the petroleum geology industry of the last 50 years. Sequence stratigraphy and the interpretation of neoproterozoic. The sequence stratigraphic interpretation system plugin is an addon to the horizoncube. Towards the standardization of sequence stratigraphy.
The innovation and refinement of the techniques and concepts of sequence stratigraphy has been one of the most exciting and profound developments in geology over the past thirty years. Over the early 1990s, sequence stratigraphical techniques and methods were gradually introduced in exploration and production studies in brunei darussalam. Sequence stratigraphy at university of alberta studyblue. Sequence stratigraphy for petroleum play assessment pgs. Unlike most traditional lithostratigraphic units nacsn, 1983, which are defined as regionally mappable packages members, formations, groups of similar lithologies rock types, sequence stratigraphic units trend across traditional lithostratigraphic. Dont miss the aapg haynesville playmaker forum, april 26 in houston, tx aapg and its sister organization, sepm, offer a wide array of informational and. Sequence stratigraphy is useful for analyzing cycles that range, in duration, from the 10 ka to 50 ma scale.
Relation of sequence stratigraphy to modern sedimentary. Sequence stratigraphy analysis of unik field, onshore niger delta, nigeria doi. The sequence stratigraphy is currently, on the one hand, a leading approach in the study of the internal structure of sedimentary basins, on the other hand, a creatively developing discipline, the. Sequence stratigraphy is a working methodology that emphasizes the importance of breaks in the stratigraphic record for the definition of sequences. Sequence stratigraphy is a methodology that employs stratal stacking patterns and key bounding surfaces to erect a framework allowing depositional facies to mapped and interpreted paleogeographically.
An earlier compressional paleogene basin in the central and eastern pannonian basin is unconformably overlain by a neogene extensional basin. As a result, none of the examples deal with topics related specifically to cores, well logs, or most significantly, seismic. Sequence stratigraphy as a sequence stratigraphy as a. Vail riceuniversity, houston, texas it is important to establish the fundamental concepts of sequence stratigraphy and to define terminology critical for the communication of these concepts. Sequence stratigraphy is the subdivision of the stratigraphic record on the basis of bounding discontinuities. Seismic stratigraphy has now become one of the standard tools of the geoscientist, and there is a pressing need for an introductory text on sequence stratigraphy. The sequence stratigraphic approach yields depositional. Sequence stratigraphy lamontdoherty earth observatory. Ashton embry for his work in making this series possible. Selected papers and illustrated abstracts of the eighth annual.
Sequence stratigraphy rapidly evolved in the late 1980s to early 1990s. Sequence stratigraphy has geological time significance, when compared to lithostratigraphy which correlates similar rock type only on the bases of lithology often irrespective of the depositional environments. Principle of faunal succession rocks formed during any particular interval of geologic time can be recognized and distinguished by their fossil content from rocks formed during other time intervals. Sequence stratigraphy is a very useful tool for interpreters of seismic and well data. The sequence part of the name refers to cyclic sedimentary deposits. Despite its wide use, sequence stratigraphy has yet to be included in any stratigraphic code or guide. Sequence stratigraphy the basics free download as powerpoint presentation. This online guide is primarily aimed at the application of sequence stratigraphy to outcrops. At applied stratigraphix we have described over 3 km of core on a cmscale from basins across the globe, as well as both carbonate and shale thinsections. Biostratigraphy in sequence stratigraphy aapg wiki.
Miocene depositional systems and sequence stratigraphy of. Introduction of sequence stratigraphy linkedin slideshare. Sequence stratigraphy is important to all subsurface geologists, and a thorough understanding of the principles can help you with a wide variety of plays, ranging from deep marine clastics, to finegrained clastics shale plays. Practical sequence stratigraphy was originally published as a fifteenpart series in the canadian society of petroleum geologists monthly magazine, the reservoir, between may 2008 and september 2009. The sequence stratigraphy of the middle eocenepliocene of the pannonian basin permits to differentiate fiftynine depositional sequences. Sequence stratigraphy is concerned with the largescale, threedimensional arrangement of sedimentary strata, and the major factors that influence their geometries such as sealevel change, contemporaneous fault movements, basin subsidence and sediment supply cf. Advances in sequence stratigraphy, volume two covers current research across a wide range of stratigraphic disciplines, providing information on the most recent developments for the geoscientific research community. Posamentier exxon production research company houston, texas and p. Sequence stratigraphy is a relatively new branch of geology that attempts to link prehistoric sealevel changes to sedimentary deposits. One method of testing the concept of sequence stratigraphy is to compare it to quaternary sediments in which chronology, stratigraphic relations, and facies. Introduction to sequence stratigraphy small free download as powerpoint presentation.
Sequence stratigraphy is an informal chronostratigraphic methodology that uses stratal surfaces to subdivide sedimentary successions. By identifying and correlating different sedimentary units based on the controls on their supply, transport, and deposition characteristics, a robust depositional framework can be generated that helps to better understand the different petroleum system play elements. One product that resulted from a study of the sequence stratigraphy of the corpus christi bay region is a time stratigraphic cross section, commonly known as a wheeler diagram wheeler, 1958. Paleontologic data, integrated with seismic and well log data, are an integral part of sequence stratigraphic analysis. Introduction sequence stratigraphy is a branch of geology that attempts to subdivide and link sedimentary deposits into unconformity bound units on a variety of scales and explain these stratigraphic units in terms of variations in.
We offer consulting services in seismic stratigraphy, sequence stratigraphy, sedimentology and geomodeling. It usually involves subdividing a sedimentary basin fill into individual sequence s of deposition hence the name, which can then be linked to changes in the two fundamental parameters of sediment supply and accommodation the amount of space available for deposition. These stratigraphic parameters can influence coal gas content. Thesurfacetopographytendsto adjusttobaselevelbylongtermcontinentaldenudation. Sequence stratigraphy, seismic stratigraphy, and seismic structures. The observational basis of sequence stratigraphy is the. Sitespecific sequencestratigraphic section benchmark charts are. Paleogeographic reconstruction of facies belts at precise moments in time is the goal of the sequence stratigrapher. Sequence stratigraphy analysis of unik field, onshore. Ssis supports full sequence stratigraphic analysis. Sequence stratigraphy is the study of genetically related facies within a framework of chronostratigraphically significant surfaces.
Sequence stratigraphy defines rock units based on event significance of their bounding surfaces. Sequence stratigraphy as a concrete stratigraphic discipline abstract sequence stratigraphy is a stratigraphic discipline in which stratigraphic surfaces that represent changes in depositional trend are used for correlation and for defining specific types of sequence stratigraphic units. Ironstones, condensed beds, and sequence stratigraphy of. The log motifs of the gamma ray response to grain sizes were used in the prediction of the depositional. The accommodation space equation represents a simple volume balance, with the terms on the left controlling the amount of space that can be occupied by sediments and water and the terms on the right describing how much water or sediment fills the accommodation space. Stratigraphy is the geologic knowledge about the processes by which sedimentary deposits form and how those deposits change through time and space on the earths surface. Sequence stratigraphy subcommission on quaternary stratigraphy. It is also an analytical procedure that provides a framework for stratigraphic units and their bounding surfaces elated to their genesis. Sequence stratigraphy, a branch of sedimentary stratigraphy, is a methodology that uses the order sedimentary strata accumulated within a framework of major depositional and erosional surfaces to interpret the depositional setting of clastic and carbonate sediments from continental, marginal marine, basin margins, and downslope settings. Sequence stratigraphy is a branch of geology that attempts to subdivide and link sedimentary deposits into unconformity bound units on a variety of. Sequence stratigraphy is the study of sediments and sedimentary rocks in terms of repetitively arranged facies and associated stratal geometry vail 1987. Vail, 1987, sequence stratigraphy, allostratigraphy, isotope stratigraphy, and biostratigraphy. Miocene depositional systems and sequence stratigraphy of the vienna basin with. Recent work has recast these classic deposits in the context of sequence stratigraphy, wherein ironstones and related phosphatic and shelly deposits are viewed as condensed facies.
208 489 637 794 1446 887 1421 684 46 638 1016 1052 147 371 675 911 1156 345 847 758 1053 398 245 924 241 684 518 403 861 1358 525 992 1459 613 1346 1299 1480 455 482