Email: [email protected]
tel: +8618221755073
Email: [email protected]tel: +8618221755073
— Soc. Econ. Paleont. Min. Spec. Publ., 16, 108–145. Google Scholar Picard, M.D., High, L.R. (1981): Physical stratigraphy of ancient lacustrine deposits. — In: Ethridge, F.G., …
Daha fazla öğrenin
An up-dated data base is a matter of importance and urgency in order for encouraging a process-oriented approach to the study of reef evolution.The evolution of reefs is a major section of a Priority Program of the Deutsche Forschungsgemeinschaft devoted to 'Global and regional controls of biogenic sedimentation'. Biological, paleontological and …
Daha fazla öğrenin
The sediment flux from a mountainous catchment can be expressed as a function of a landslide rate constant κ which accounts for the vigour of hillslope erosion. Since the incising drainage network flushes all or a portion of the products of hillslope erosion to a range front where fan deposition takes place, a conservation of solid …
Daha fazla öğrenin
Thick turbidites accumulated along the northern margin of the Iapetus Ocean in Britain from mid-Ordovician to late Silurian times. Recent plate tectonic reconstructions hold that, during subduction, packets of these sediments, together with the underlying pelagic facies and thin portions of the uppermost ocean crust, were stripped from the descending plate and …
Daha fazla öğrenin
Nature - Palaeontology: Ammonoids and extinctions. Stanley, S.M. Geology 12, 205 (1984). Article ADS Google Scholar . Fischer, A.G. & Arthur, M.A. Soc. econ. Paleont ...
Daha fazla öğrenin
The carbonate breaccias and calcarenites of the extremely fossiliferous Pietra di Salomone megablock southwest of Palazzo Adriano, Sosio Valley (Monti Sicani, Western Sicily) represent debris-flow and turbidite sediments deposited in a base-of-slope position.Microfacies criteria (22 localities, 240 samples) and paleontological data …
Daha fazla öğrenin
Microscopic measurement of the level of catagenesis of solid organic material in sedimentary rocks Spec. Pub. Soc. econ. Paleont. Miner. 26, 17 – 43 . Google Scholar
Daha fazla öğrenin
The fauna from Alpe di Specie (Seelandalpe) is one of the most important Carnian faunas in the world. Unfortunately it has never been found in situ; it is only known from erratic boulders embedded in peaty soil in the meadows of the Alpe di Specie, where they are distributed along a continuous beltabove the deep-water S. Cassiano Fm andbelow the shallow …
Daha fazla öğrenin
Deep-water sands form economically important hydrocarbon reservoirs in many parts of the world. Although they have been studied extensively from a traditional, somewhat qualitative perspective, quantitative reservoir characteristics are poorly understood, and often are not described in a format suitable for reservoir engineering applications.
Daha fazla öğrenin
The Panthalassan buildups differ from their time-equivalent Pangean reefs in the ability to construct wave-resistant reefs. These wave-resistant coral-chaetetid-bryozoan reefs were replaced by the post-Moscovian microbial carbonates, which characterize the Upper Carboniferous and Permian development of the carbonate buildups of the Akiyoshi and ...
Daha fazla öğrenin
The Scythian-Carnian stratigraphic sequence of M. Pleros (Western Carnia, Southern Alps) was studied in order to verify the influence of the "paleocarnic chain" on the Triassic sedimentation of this part of the Southern Alps.At least three Upper Anisian tectonosedimentary cycles were recognized, characterized by three main levels of …
Daha fazla öğrenin
Reef facies, reef types and their biotic associations in the Maiella platform margin (central Italy) provide qualitative evidence for a significant reef decline across the Cretaceous/Tertiary (K/T) boundary, and indicate two phases of reef recovery during the Paleocene. Rudists dominated the reef community until the latest Cretaceous. A …
Daha fazla öğrenin
Sedimentological, paleontological and sequence analyses of Cenomanian limestones in Sicily reveal the facies architecture and dynamics of a Mid Cretaceous rudistdominated …
Daha fazla öğrenin
The East Breaks Block 160–161 oil and gas field lies 160 km (100 miles) offshore of Galveston, Texas in the northwestern Gulf of Mexico and produces from four Pliocene to Pleistocene petroleum reservoirs interpreted as deep-water turbidite deposits. The oldest...
Daha fazla öğrenin
Palaeogeography, Palaeoclimatology, Palaeoecology, 70 (1989): 187-197 187 Elsevier Science Publishers B.V., Amsterdam -- Printed in The Netherlands CLIMATIC AND TECTONIC CONTROLS ON SEDIMENTATION OF A MESOZOIC LACUSTRINE SEQUENCE: THE PURBECK OF THE WESTERN CAMEROS BASIN, NORTHERN …
Daha fazla öğrenin
Lower Paleozoic and Uppermost Pre-Cambrian cordilleran miogeocline, Great Basin, Western U.S. Spec. Publs, Soc. Econ. Paleont. Miner., Tulsa 22, 1 – 57.Google …
Daha fazla öğrenin
Illing, L. V., Bull. Amer. Assoc. Petroleum Geologists, 38, 1 (1954). CAS Google Scholar . Newell, N. D., and Rigby, J. K., Soc. Econ. Paleont.Mineral, Spec. Publ., 5 ...
Daha fazla öğrenin
We synthesize available geologic and geophysical data from southern California and adjoining areas in order to develop a reconstruction of the tectonic evolution of the southern Coast Ranges, western Transverse Ranges, and borderland regions of California since 30 Ma.
Daha fazla öğrenin
Upper Jurassic reefs rich in microbial crusts generally appear in deeper (sponge—'algal' crust reefs) or in very shallow but protected settings (coral or coral-coralline sponge meadows with 'algal' crusts). Upper Jurassic high-energy reefs (coral reefs and coral-stromatoporoid reefs) normally lack major participation of microbial crusts but …
Daha fazla öğrenin
ABSTRACT. The Poza Rica trend of the Tampico embayment, Mexico, will ultimately produce more than 2.3 × 10 9 barrels of oil from Mid-Cretaceous (Albian-Cenomanian) basin-margin deposits. Bioclastic grainstone, packstone, and wackestone are interbedded with polymictic lime breccia and dolomitized debris; all were deposited by sediment …
Daha fazla öğrenin
Integration of biostratigraphic data with seismic-stratigraphically defined depositional framework permits correlation of biofacies and seismic facies within successive depositional cycles.
Daha fazla öğrenin
A successful basin analysis requires the collection and integration of several, perhaps many, different kinds of data. Direct observation of the rocks themselves may or may not be fundamental to the study. In the case of a surface geological project it will be...
Daha fazla öğrenin
118°45' Calabasas Quadrangle (1) (3) 34°15' Figure 1-Sources of geology Squires (1983a), with additions from Morton (1972) and Weber (1984). Weber (1984), with additions from Tinsley and others
Daha fazla öğrenin
The Lower Cretaceous Britannia Formation (North Sea) includes an assemblage of sandstone beds interpreted here to be the deposits of turbidity currents, debris flows and a spectrum of intermediate flow types termed slurry flows.
Daha fazla öğrenin
Groundwater flows that arise in sedimentary basins from the effects of topographic relief, buoyant convection, sediment compaction, erosional unloading, and combinations of these driving forces can be described using quantitative modeling techniques. Models can be constructed to consider the effects of heat and solute transport, petroleum migration, and …
Daha fazla öğrenin
Paleontological and microfacies criteria of limestone boulders occurring within megablocks deposited on clinogonal slopes provide indications of the source area of Middle Triassic allochthonous carbonates exposed in the Mahlknecht cliff, Seiser Alm, Dolomites. Microfacies, biotic composition, a high percentage of low-growing binding and baffling …
Daha fazla öğrenin
The island of Cres is located in the northern part of the Adriatic Sea. The island is built up of predominantly Cretaceous carbonates deposited in north-western part of extensive and long-lasting Adriatic Carbonate Platform. Owing to the influence of synsedimentary tectonics supported by eustatic changes during the latest Albian/Early Cenomanian, different …
Daha fazla öğrenin
Ordovician conodontophorid distribution, paleogeography, paleoclimate, and global tectonics strongly support the existence of one biogeographic conodontophorid province, largely restricted to equatorial regions and characterized by raised salinity and temperature.
Daha fazla öğrenin
Marine phosphorites are known to occur within multiply deformed Ordovician/Silurian and Upper Devonian rocks of the northern Sierra Nevada range, California. Although the phosphatic sediments ...
Daha fazla öğrenin
The Potiguar Basin is located in northeastern Brazil and occupies an area of about 40,000 km 2, distributed both onshore and offshore (Fig. 8.1).It is one of the Brazilian marginal basins originated by Africa-South America rifting in the Early Cretaceous.
Daha fazla öğrenin
Sedimentological, paleontological and sequence analyses of Cenomanian limestones in Sicily reveal the facies architecture and dynamics of a Mid Cretaceous rudistdominated platform margin from Western Tethys. The studied deposits outcrop near Palermo, as part of a large structural unit of the Sicilian Maghrebids. They belong to the Panormide …
Daha fazla öğrenin
Mechanics of Sediment Movement: Lecture Notes for Short Course No. 3, Sponsored by the Eastern Section of the Society of Economic Paleontologists and Mineralogists, and Given in Providence, Rhode Island, March 13-14, 1984. Gerard V. Middleton. SEPM, 1984 - Sediment transport - 401 pages.
Daha fazla öğrenin
The Upper Triassic Dachsteinkalk of the Hochkönig Massif, situated 50 km south of Salzburg in the Northern Calcareous Alps, corresponds to a platform margin reef complex of exceptional thickness. The platform interior limestones form equally thick sequences of the well known cyclic Lofer facies. Sedimentation in the reef complex was not so strongly …
Daha fazla öğrenin
Williams, D.F., and Trainor, D.M., 1987: Integrated chemical stratigraphy of deep-water frontier areas of the northern Gulf of Mexico; Gulf Coast Section Soc. Econ. Paleont. …
Daha fazla öğrenin
Three peritidal carbonate crusts and associated intercrust sediments (total thickness of ∼30cm; aged <3000 years BP) on Ambergris Cay, Belize, contain 32–100% calcian dolomite (δx=72·5% dolomite) ranging in composition from 40 to 46 mol% MgCO 3 (δx=43·3). Dolomite replaced high Mg calcite foraminiferal muds penecontemporaneously with …
Daha fazla öğrenin
'High-resolution event stratigraphy: regional and global Cretaceous Bio-events' published in 'Global Bio-Events'
Daha fazla öğrenin
Abstract. Intensive study of modern carbonate sediments and a substantial library of fossil examples have brought us to the point where it is now possible to formulate actual facies models for carbonate deposits which may serve as frameworks or guides for future observations and, most important in terms of hydrocarbon exploration, predictors in ...
Daha fazla öğrenin
WhatsApp24H Online Service Copyright ©2000- 2023 SHANGHAI ZENITH MINERALS CO.,LTD.
