In this lab, you will put together your knowledge of nearshore facies and sequence stratigraphy to correlate sections and interpret facies changes in the cretaceous stratigraphy of the book cliffs. Sedimentology and sequence stratigraphy of the nkporo. 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. Gold occurrence in the cretaceous mancos shale utah. It is 650700 feet thick and is subdivided into 5 units. Therefore rock layers can be thought of as pages in a history book that was written backwards with the most current events in the front and the most ancient. There are currently no active mines within the book cliffs v cia. Pattison continues to actively research the cretaceous strata in utah. The drive would be lonely but for a constant companion. The book cliffs are an enormous area that spans two states. Stratigraphic cross section of measured sections and drill. The shale and cretaceous sandstone cliffs, formed over time by the uncompahgre uplift, are a remnant of the mancos sea floor.
Implications for sequence stratigraphic models simon a. Comprehensive safety discussion kicks off the trip on day 1, followed by daily safety briefings at each field stop. Cretaceous shales book cliffs of utah kenilworth member of the blackhawk formation. Sequence stratigraphy and marine to nonmarine facies architecture of foreland basin strata, book cliffs, utah, u. The study area lies within the anambra basin and it is made up of enugu shale, mamu formation, ajali sandstone, and nsukka formation. Between price, utah and grand junction, colorado, highway 6 and interstate 70 cross 170 miles of barren and windswept terrain. Sedimentary sequenceparasequencesystems tracts highstand, lowstand, transgressive, shelf margin. Pdf lithostratigraphy of the maastrictian nsukka formation in the. The economic findings and part of the stratigraphic data resulting from the work.
Northern colorado plateau by keith rigby geologic history of utah by lehi hintze purchase information. Sedimentary sequenceparasequencesystems tracts highstand, lowstand, transgressive. The book cliffs v cumulative impact area cia is located in carbon county, utah, south of the town of sunnyside plate 1. The book cliffs are one of the worlds best places to study sequence stratigraphy. Top of the castlegate sandstone, sagers canyon, book cliffs, eastern utah.
Free web tutorials sequence stratigraphy, tutorials carbonate petrology. Stratigraphy is the study of rock layers and their relative ages. Leader arrives a few days early for pretrip safety reconnaissance of all field stops and roadstracks. The exceptional quality of the wasatch plateau outcrop has given rise to a plethora of stratigraphic studies and serves as a natural laboratory in. Intermountain assoc, petroleum geologists guidebook 5th ann. In the 1980s, exxon scientists used the cretaceous strata of the book cliffs to develop the science of sequence stratigraphy. The book cliffs have preserved excellent strata of the foreland basin of the ancient western interior seaway that stretched north from the gulf of mexico to the yukon in the cretaceous time. The desert and castlegate sandstones, 2001 pages iiii, 181. Map of the study area showing the book cliffs and the location of the prairie canyon member outcrop belt south of the cliff line. Lithofacies, palynofacies, and sequence stratigraphy of palaeogene strata in. The division refers to the existing horse canyon mines mining and reclamation plan. 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. Sedimentology and depositional environments of the. Their stratal architectures are classically interpreted in terms of accommodation controls that were external to the sediment routing system allogenic, and that forced the. 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. Introduction facies analysis is an important part of any stratigraphic study. No evidence for an unconformity at the base of the lower castlegate sandstone in the campanian book cliffs, utah colorado, united states. Blackhawk formation the blackhawk formation overlies the mancos in the study area. The book cliffs are a series of desert mountains and cliffs in western colorado and eastern utah, in the western united states.
Shell petroleum development company nigeria 22 husky energy incorporated canada 6. Basinwide stratigraphic correlation across the anambra basin using base of the. Seymour department of earth and atmospheric sciences, university of nebraskalincoln. It extends northwestward into the niger valley, northward to the jos massif and northeastward into lafia. And with the exception of a few privately held parcels of land, almost 96% of the 2. T he stratigraphy of the anambra basin southeastern nigeria. Pdf lithofacies, palynofacies, and sequence stratigraphy of. The first major work in the bida basin with focus on stratigraphy and sedimentology is that of adeleye, 1973, adeleye, 1974. High resolution correlation of the upper cretaceous. Member mancos b and associated strata, book cliffs area, utah. Upper cretaceous strata exposed in the book cliffs of eastcentral utah are widely used as an archetype for the sequence stratigraphy of marginalmarine and shallowmarine deposits. Facies analysis and sequence stratigraphic framework of.
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. Flint, 1999, a sedimentological and sequence stratigraphic reinterpretation of the upper cretaceous prairie canyon member mancos b and associated strata, book cliffs area, utah, u. This stratigraphic interval has been documented extensively in the book cliffs area in utah, and its sequence stratigraphy has been interpreted and used as a proxy to trace cretaceous sealevel variations van wagoner 1991. Book cliffs, geological feature of eastcentral utah and western colorado, u. Stratal architecture of these rocks is controlled by two regionally extensive surfaces of incision and subaerial exposure. Roadside geology of utah by halka chronic field guide. Designed for undergraduate and graduate courses in sequence stratigraphy. Book cliffs, green river, utah international space station photograph iss018e10341 showing about 20 kilometers 12. Flint strat group, department of earth sciences, university of liverpool, brownlow street, liverpool l693bx, u. The book cliffs coal field is part of the southern rim of the uinta basin, which is an immense structural trough in western colorado and eastern utah, around whose margin the. At some point, this section will contain hundreds of stratigraphic columns from all over the colorado plateau. In particular, it concentrates on the current sequence stratigraphy model. Millions of years of the planets evolution are recorded in layer after layer of distinctive geological strata, which are remarkably free from the folding and other distortions that scramble the record elsewhere. The book cliffs of eastern utah and western colorado figs.
A preliminary evaluation of missing time in the mesaverde group, book cliffs, utah, u. A case study in coastal sequence stratigraphy, offered annually through w. The lower slope exposes marine shales of the cretaceous mancos shale while interfingering. Stratigraphy and sedimentation of the book cliffs, utah cole 1989 field trip guidebooks wiley online library. It explains this model from basics and shows how the model can be applied to both siliciclastic and carbonate successions. These rocks are important outcrop analogs for fluvial, deltaic and shorefacetoshelf reservoirs worldwide. High resolution correlation of the upper cretaceous stratigraphy between the book cliffs and the western henry mountains syncline, utah, u. Sequence stratigraphy, paleogeography, and tectonic controls article in journal of sedimentary research 714. Book cliffs geological feature, utah, united states. 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. Stratigraphy and sedimentation of the book cliffs, utah.
The colorado plateau is one of the earths most strikingly beautiful geological provinces and one of the most enigmatic. The marginalshallow marine nkporo group is the basal lithostratigraphic unit of the late campanianmaastrichtian successions of the anambra basin, nigeria fig. Sequence stratigraphy in the book cliffs, utah goal. 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. Geological evolution of the colorado plateau of eastern. Sedimentology and sequence stratigraphy of the nkporo group. For about 200 miles this escarpment extends from where the colorado river descends south through debeque to price canyon near price, utah. 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. These factors become the cardinal focus of this study on the nkporo shale deposit at orekpekpeimiegba area western part of anambra basin figs.
Highresolution correlation of upper cretaceous stratigraphy between the book cliffs and the western henry mountain syncline, utah. 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. A preliminary evaluation of missing time in the mesaverde group, book cliffs, utah andrew d. Cretaceous and tertiary formations of the book cliffs carbon. The basin is bounded to the south by the niger delta basin hinge line. Section summary accessible from the selection map, the stratigraphic columns section will eventually be one of the most extensive parts of our database. The video shows some of the field evidence for sealevel change and how the sequence stratigraphy model has been applied to this shallowmarine and fluvial succession.
In geology, the law of superposition suggests that rocks in the deepest layers are older than the rocks near the surface. The anambra basin is situated west of the lower benue trough and is often considered youngest formation of the benue trough. Sequence stratigraphy of the book cliffs of eastern utah. Stratigraphy is the science of the layered character of rocks, be these sedimentary, volcanic, metamorphic, or igneous rocks.
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