For about 200 miles this escarpment extends from where the colorado river descends south through debeque to price canyon near price, utah. Designed for undergraduate and graduate courses in sequence stratigraphy. Chapter 2 also describes the internal stratigraphy of the rollins sandstone member and interprets the history of change in sea level during the deposition of this member. Sedimentology and sequence stratigraphy of the eocene nanka. A subsequent trip through colorado and utah segments of the colorado plateau provided many photogenic encounters with the book cliffs, which seem to. In particular, it concentrates on the current sequence stratigraphy model.
Gold occurrence in the cretaceous mancos shale eastern utah. The study area lies within the anambra basin and it is made up of enugu shale, mamu formation, ajali sandstone, and nsukka formation. Sedimentology and depositional environments of the. Regional stratigraphy of southeastern nigeria with the sample points after tijani. Section summary accessible from the selection map, the stratigraphic columns section will eventually be one of the most extensive parts of our database. In the 1980s, exxon scientists used the cretaceous strata of the book cliffs to develop the science of sequence stratigraphy. The basin is bounded to the south by the niger delta basin hinge line. Lithofacies, palynofacies, and sequence stratigraphy of palaeogene strata in. Department of geology, ekiti state university, ado ekiti nigeria olaburaimo a. It is 650700 feet thick and is subdivided into 5 units. Cretaceous alaska, clastic outcrop interpretation sequence stratigraphy exercises of bookcliffs, exercises sequence stratigraphy interpetation. Simon provides expertise in the areas of sedimentology, sequence stratigraphy and reservoir geologymodelling and has considerable knowledge of the book cliffs.
He has one in print geologicalfield tripsintheanambra basin. The upper cretaceous sego sandstone member of the mesaverde group has been extensively studied in the book cliffs area of utah and colorado, and has been the focus of stratigraphic reconstruction aimed at developing an understanding. The marginalshallow marine nkporo group is the basal lithostratigraphic unit of the late campanianmaastrichtian successions of the anambra basin, nigeria fig. Sequence stratigraphic interpretation of parts of anambra. Book cliffs field trips geology geosciences physical. Several workers have studied the anambra basin and niger delta in terms of sedimentology, stratigraphy and sequence stratigraphic concepts nwajide and reijers 1996. Obaje nigerian geological survey agency, kwara state office, p. The book cliffs appear mostly along the southern and western edge of the tavaputs plateau. You can see the book cliffs from i70 from green river to grand junction, colorado. Biostratigraphy and paleoenvironment of the coniacian awgu. Sedimentology,sequence stratigraphy,anambra basin,nanka formation and eocene.
November 1992 sequence stratigraphy field seminar book cliffs utah. Cliff, steep slope of earth materials, usually a rock face, that is nearly vertical and may be overhanging. Geologic setting and stratigraphy the anambra basin is one of the cretaceous sedimentary basins of nigeria, bounded on the southwestern flank by the niger delta hinge line, northwest by the benue flank and southeast by the abakaliki fold belt. Jan 03, 20 the book cliffs are one of the most recognizable landforms in western colorado and eastern utah.
Stratigraphy and sedimentation of the book cliffs, utah. Beginning near helper, utah, and joined at green river, utah, by a second escarpment, the roan cliffs, the 2,000foot 610metre tall mountain wall, winds a 250mile 400km course along the tavaputs and roan. The basin is bounded to the south by the niger delta hinge line. Sequence stratigraphy, palynological evidence, anambra basin, formation, system tract. Information was gathered from a number of sources see info for more information. Utah stratigraphic columns overview page these stratigraphic columns are dynamically created on the fly from information stored in a database. Sedimentology and sequence stratigraphy of the nkporo. Blackhawk formation the blackhawk formation overlies the mancos in the study area. Stratigraphic variations within the sego sandstone, book cliffs, central utah article pdf available january 2007 with 5 reads how we measure reads. Stratigraphic variations within the sego sandstone, book. Named for its similar appearance to a stack of books lined up against a shelf, the book cliffs are one of the most wellknown locations for studying sequence stratigraphy. It explains this model from basics and shows how the model can be applied to both siliciclastic and carbonate successions.
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. Book cliffs geological feature, utah, united states. Sequence stratigraphy of the book cliffs of eastern utah, the. At some point, this section will contain hundreds of stratigraphic columns from all over the colorado plateau. Gold occurrence in the cretaceous mancos shale, eastern utah contract report 915 utah geological and mineral survey a division of by. The units are arranged to form two stratigraphic sequences represented by the nkporo shaleowelli sandstone and. A subsequent trip through colorado and utah segments of the colorado plateau provided many photogenic encounters with the book cliffs, which seem to be everywhere in plateau country. This study aimed at determining the geology and depositional environmental of these formations through field relationship and grain size distribution morphologic studies. The book cliffs, utah have become the premier locality globally for field teaching of sequence stratigraphy. In the 1980s, exxon scientists used the cretaceous. Extensive research has been done on the type sections of the castlegate sandstone and sego sandstone members in the book cliffs area in utah and colorado, where they have been interpreted as alluvial deposits, stacked incisedvalley fills, and tidedominated deltas fouch et al. It extends northwestward into the niger valley, northward to the jos massif and northeastward as far as lafia. The book cliffs coal field is part of the southern rim of the uinta basin, which is an immense structural trough in western colorado. Discover book depositorys huge selection of stratigraphy books online.
The cretaceous books cliffs of utah are best known as the mecca of sequence stratigraphers, but besides excellent exposures that allow tracing of sandstone bodies and sequence boundaries the succession also contains abundant shales and mudstones. Cretaceous and tertiary formations of the book cliffs carbon. Haughton a practical based on outcrop and subsurface information from one of the classic sequence stratigraphic datasets, the book cliffs in utah, usa, a 100 km traverse from the coastal plain to offshore shelf. The book cliffs are one of the most recognizable landforms in western colorado and eastern utah. This author studied the depositional model of the outcrops along iseleazagbaonitshaakwa areas of the northern niger delta and anambra basins. Book cliffs, geological feature of eastcentral utah and western colorado, u. Biostratigraphy and paleoenvironment of the coniacian. Grand junction, colorado 95 pictures mount garfield in the book cliffs, is north east of grand junction.
Generalized stratigraphic cross section bb consisting of measured sections, one interpreted geophysical log, and core from the western part of the study area. The invasive body of water is called the western interior seaway, or the great cretaceous seaway. The book cliffs are one of the worlds best places to study sequence stratigraphy. Subsurface evaluation of source rock and hydrocarbon potential of the anambra basin, south eastern nigeria iheanacho princewill ugochukwu dissertation. Home browse collections grand junction geological society bookpublication book cliffs sequence stratigraphy. International commission on stratigraphy ics consolidated annual report for 2002 compiled by felix m. The first major work in the bida basin with focus on stratigraphy and sedimentology is that of adeleye, 1973, adeleye, 1974. Introduction this study examines part of the sedimentary units of the eocene nanka formation of anambra basin exposed at lat. This study presents detailed highresolution correlations of the upper cretaceous stratigraphy between the book cliffs, the wasatch plateau, and the western henry mountains syncline in utah with. The book cliffs of eastern utah and western colorado figs. Spieker and reeside 1925 named the emery sandstone for a series of prominent, beige and buff sandstones encased by gray siltstones of the blue gate shale at the foot of the wasatch plateau near the town of emery, utah fig. A sequence stratigraphic model for the group was developed by nwajide and reijers 1996, on the basis of stratigraphic analysis of a composite section located at leru, near okigwe.
This unique textbook describes how past changes in sealevel can be detected through an analysis of the sedimentary record. Prior to the tectonic event the anambra basin was a platform that was only thinly covered by sediments. Together with his experience from spdc shell nigeria, simon effectively demonstrated both theoretical and applied aspects at all levels in a clear, concise and thoughtful manner. Subsurface evaluation of source rock and hydrocarbon potential of the anambra basin, south eastern nigeria. Summary introduction late cretaceous depositional setting stop 1. Biostratigraphy and paleoenvironment of the coniacian awgu formation in nzam1 well, anambra basin, southeastern nigeria. The economic findings and part of the stratigraphic data resulting from the work. It extends northwestward into the niger valley, northward to the jos massif and northeastward into lafia. Its just that these are not the eocene green river formation oil shales that are the focus of oil development in the future. Palynological and sequence stratigraphy characterization of the earlylate campanian nkporo shale, orekpekpeimiegba area, anambra basin, nigeria adebayo olajide f. They are so named because the cliffs of cretaceous sandstone that cap many of the southfacing buttes appear similar to a shelf of books. Sequence stratigraphy and palynological analysis of late.
Erosional cliffs form along shorelines or valley walls where the most. Stratigraphic cross section aa, based on measured section data for the eastern book cliffs of colorado. Facies analysis and sequence stratigraphic framework of upper campanian strata neslen and mount garfield formations, bluecastle tongue of the castlegate sandstone, and mancos shale, eastern book cliffs, colorado and utah by mark a. Fielding, christopher 1 1 earth and atmospheric sciences, university of nebraskalincoln, lincoln, ne. The study area is located in the southern part of the anambra basin fig. Pdf sedimentology and sequence stratigraphy of the nkporo. North of awgu the nkporo tional axis into the anambra platform which then began. Sequence stratigraphy, a branch of sedimentary stratigraphy, uses the order strata accumulated in along with 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 of basins. They follow instructions to construct a measured section. Stratigraphy in the book cliffs during late cretaceous time, a time of worldwide high sea level, the stable cratonic area of north america was inundated by marine waters. Its just that these are not the eocene green river formation oil shales that. The folding of the anticlinorium laterally shifted the depositional axis into the anambra platform which then began to accumulate sediments shed largely from the abakaliki anticlinorium murat, 1972, hoque and nwajide, 1985, amajor, 1987. Fielding, christopher 1 1 earth and atmospheric sciences, university of nebraskalincoln, lincoln, ne this study presents highresolution correlations of the upper cretaceous stratigraphy between the book cliffs and the western henry. Cretaceous shales book cliffs of utah kenilworth member of the blackhawk formation.
Sedimentology and sequence stratigraphy of the nkporo group. Olatunji palystrat limited, ibadan nigeria madukwe, henry y department of geology, ekiti. Designed for undergraduate and graduate courses in sequence. Stratigraphy is the science of the layered character of rocks, be these sedimentary, volcanic, metamorphic, or igneous rocks. Ogg, secretarygeneral of ics the first portion of this report items 1 8 is a summary of the current goals and scientific activities of the commission and its component subcommissions. Facies analysis and sequence stratigraphic framework of upper. Sedimentology and sequence stratigraphy of the eocene. In exercise 2, students work either with polarized microscopic photographs linked online to specific units in their measured section or directly. The aapgdatapages combined publications database grand junction geological society. May 22, 2003 this unique textbook describes how past changes in sealevel can be detected through an analysis of the sedimentary record. The desert and castlegate sandstones, 2001 pages iiii, 181. It was approximately 4800 km long and up to 1600 km wide. Desert member to lower castlegate sandstone stratigraphic interval along the southeastern face of. The desert member of the blackhawk formation and the castlegate sandstone in the book cliffs of utah and colorado were analyzed to develop a model of sequence stratigraphy and facies architecture in foreland basins.
Journal of environment and earth science issn 22243216 paper issn 22250948 online vol. On my first to the book cliffs, the weather was less than idea for viewing from any distance. The anambra basin is situated west of the lower benue trough and is often considered youngest formation of the benue trough. This page lists some of the literature click on pdfadobe icons to download pdf files of papers on the book cliffs sedimentary record and its sequence stratigraphic character in response to base level change. Pdf lithofacies, palynofacies, and sequence stratigraphy of. The rollins sandstone member contains a thick marineshoreface sandstone that is a cliffforming unit of the book cliffs east of grand junction, colorado. Highresolution correlation of upper cretaceous stratigraphy between the book cliffs and the western henry mountain syncline, utah. It underlies the whole of anambra state and parts of abia, enugu, imo, delta, edo and kogi states. Ditch cutting samples from an exploratory nzam1 well located in the northwestern part of anambra basin were subjected to lithological. This video is a virtual field trip to one of the classic locations in the world book cliffs, utah, usa where the sequence stratigraphy method was developed and tested. Beginning near helper, utah, and joined at green river, utah, by a second escarpment, the roan cliffs, the 2,000foot 610metre tall mountain wall, winds a 250mile 400km course along the tavaputs and roan plateaus, ending near grand junction, colorado.
Structural cliffs may form as the result of fault displacement or the resistance of a cap rock to uniform downcutting. Sequence stratigraphy and marine to nonmarine facies architecture of foreland basin strata, book cliffs, utah, u. The book cliffs are a series of desert mountains and cliffs in western colorado and eastern utah, in the western united states. Bertram, 1995, sequence stratigraphy and marine to nonmarine facies architecture of foreland basin strata, book cliffs, utah, u. Department of geology, anambra state university, uli, nigeria. Sedimentology and depositional environments of the upper african. Continuous, wellexposed and easilyaccessible outcrops make it possible to analyze facies relationships of stratigraphic sequences in great detail, both in terms of lateral variation systems tracts and vertical stacking. To clarify a bit further you were absolutely correct to identify your photo as the book cliffs, doc, and the book cliffs are upper cretaceous mancos shale capped by mesa verde group sandstones. American association petroleum geologists memoir 64. Sequence stratigraphy of the book cliffs of eastern utah. Subsurface evaluation of source rock and hydrocarbon.
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