Lower Jurassic
Neptunian dykes penetrating the Lower Jurassic Dudziniec Formation in the autochthonous High-Tatric succession, Tatra Mountains, Western Carpathians, Poland
... the Lower and Middle Jurassic sequences record the great in- fluence of synsedimentary tectonic activity on the area’s ...and Jurassic rocks and filled with Jurassic ...the Jurassic ...
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Corals not serpulids: mineralized colonial fossils in the Lower Jurassic marginal facies of South Wales
... between Lower Carboniferous limestones and Lower Jurassic carbonates exposed near Southerndown, South Wales [Great Britain Ordnance Survey, Grid ...British Lower Jurassic, being ...
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Upper Triassic and Lower Jurassic stratigraphy from exploration well L134/5-1, o shore Inner Hebrides, west Scotland
... to Lower Jurassic sequence, which contains a valuable biostrati- graphical record permitting correlation with contemporaneous sites throughout much of NW ...
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The biostratigraphy of the Upper Pliensbachian–Toarcian (Lower Jurassic) sequence at Ilminster, Somerset
... For reasons of sedimentary development and exposure, the biostratigraphy of the Pliensbachian/Toarcian boundary inter- val is poorly known in the UK. The exception to this is the Mochras Borehole, west Wales, which was ...
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Diagenetic Evolution of Mudstones: Black Shales to Laminated Limestones, an Example from the Lower Jurassic of SW Britain
... the Lower Jurassic of SW Britain is an example, which typify extent of diagenetic modification of marine clay and organic-rich ...The Lower Jurassic mudstones of the SW Britain include black ...
11
Lower Jurassic Ostracod Biozonation of the Mochras Borehole
... Distribution: Present at Ilminster (tenuicostatum zone) al- though only as a few poorly preserved specimens; mid-spinatum to upper tenuicostatum zone at Mochras where it dominates t[r] ...
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High resolution integrated microbiostratigraphy of the Lower Jurassic (late Pliensbachian-early (Toarcian) of central Italy
... ABSTRACT ~ The integrated use of calcareous nannofossil and dinoflagellate cyst events in a study of the late Pliensbachian-early Toarcian interval in central Italy has yielded [r] ...
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Lower Jurassic ostracods from Ilminster, Somerset, England
... The lowest sample examined (ILM-KP 1) although assessed as spinatum zone (Upper Pliensbachian) on the basis of ammonites, has an ostracod fauna similar to that of ten[r] ...
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Chemostratigraphy Across the Triassic–Jurassic Boundary
... higher, Lower Jurassic part of the section, doubling the thickness of the sampled stratigraphic section to 250 m, through the entire Hettangian and well into the ...
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Jurassic calcareous nannofossils and environmental cycles
... f Lower Jurassic assemblages, (c) the Early Jurassic nannopiankton were essentially cosmopolitan in distribution, although Mitrolithus jansae (the dominance of which is a striking feature of Tethyan ...
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The research status of Hailar basin in Jurassic stratigraphic
... the lower-generation and up per-storage pattern, source and reservoir in the same bed pattern, new source rock and old reservoir pattern,and old souce rock and new reservoir ...group.The Jurassic also have ...
6
Taxonomic resolution of the Triassic–Jurassic sporomorph record in East Greenland
... Taxonomic imprecision blurs the relationship between a sporomorph assemblage and the source vegetation. This ham- pers e ff orts to understand plant life during episodes of major environmental and biotic change, such as ...
12
Semionotiform Fish from the Upper Jurassic of Tendaguru (Tanzania)
... The Lepidotes is a new species characterized by a combination of features such as the presence of scattered tubercles in cranial bones of adults, smooth ganoid scales, two suborbital bon[r] ...
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Ostracods from the Upper Jurassic (Oxfordian-Tithonian) of southern Germany
... Anderson, 1993, lower Mornsheimer Schichten, Lower Tithonian, sample Groiss 37, Oberhartheim near Vohburg/Donau, left valve, length 0.41 mm. mucropunctuta Swain & Anderson, 1993, [r] ...
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A boring foraminiferan from the Upper Jurassic of England and Northern France
... Small rosette borings, consisting of an excavated pit from which is subtended a system of branching gal- leries, are common in carbonate skeletal substrates in the Upper Jurassic Oxfo[r] ...
7
Regional Stratigraphy And Hydrocarbon Potential Of The Jurassic Abenaki Basin
... Early Jurassic dolostones, sandstones and ...Mid Jurassic up until Early Cretaceous much of the basin was filled with reefal limestones facies containing coral stromatoporid packstone and ...
15
On aPterosaur Jaw from the Upper Jurassic of Tendaguru (Tanzania)
... Here, in 1912, sediments of the Transitional Sands at the base of the Upper Saurian Bed produced the type material of `Pterodactylus brancai' and many other bones and teeth of pterosaurs[r] ...
14
Middle Jurassic ostracoda from southern England and northern France
... subconcentrica is here further recorded from the falcata Zone within the Forest Marble and equivalents in the Kent-Boulonnais Province and from the Frome Clay and Forest Marble within th[r] ...
358
Selachians and actinopterygians from the Upper Jurassic of Tendaguru, Tanzania
... absence of bifurcating ridges distinguishes it from teeth of H. cloacinus Quenstedt, 1885 from the Rhaetian and Sinemurian? and Egertonodus basanus. The teeth of Hybo[r] ...
24
Stratigraphy and Correlation of the Marine Jurassic Deposits of Central Oregon
... DOC STRATIGRAPHY AND CORRELATION OF THE MARINE JURASSIC DEPOSITS OF CEliTRAL OREGON Thesis by R L Lupher In Partial Fulfillment of the Requirements for the Degree of Doctor of Philosopl'13 California[.] ...
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