1-20 OF 286 RESULTS FOR

Ryazanian

Results shown limited to content with bounding coordinates.
Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Journal Article
Published: 01 March 2000
Journal of the Geological Society (2000) 157 (2): 335–343.
...GREGORY D. PRICE; ALASTAIR H. RUFFELL; CHARLES E. JONES; ROBERT M. KALIN; JÖRG MUTTERLOSE Abstract Oxygen and carbon isotopic compositions have been determined from the belemnite genera Acroteuthis and Hibolites sampled from the early Cretaceous (Ryazanian–Hauterivian) interval of the Speeton Clay...
FIGURES | View All (5)
Journal Article
Published: 01 July 1998
Micropaleontology (1998) 44 (3): 217–255.
Series: Geological Society, London, Petroleum Geology Conference Series
Published: 01 January 2010
DOI: 10.1144/0070177
EISBN: 9781862394131
... Abstract Deposition of the Callovian–Ryazanian Humber Group of the UK Central Graben occurred during rifting and long-term relative sea-level rise, which acted to suppress the formation of eustatically forced Exxon-type sequence boundaries. The superposition of highly variable halokinetically...
FIGURES | View All (27)
Journal Article
Published: 01 November 2001
Proceedings of the Yorkshire Geological Society (2001) 53 (4): 275–302.
... provide the most extensive and complete marine macrofossil record so far across the Volgian–Ryazanian (Jurassic–Cretaceous) boundary in the Spilsby Province and the North Sea Basin. The Primitivus, Preplicomphalus, Lamplughi, Runctoni and Kochi Zones have been identified. In both wells, the occurrences...
FIGURES | View All (17)
Series: Geological Society, London, Special Publications
Published: 01 January 2000
DOI: 10.1144/GSL.SP.2000.167.01.08
EISBN: 9781862394155
.... It consists of a two-fold coarsening-upward sequence from shale to sandstone of shallow marine/shoreline origin. Active fault block rotation and subsidence in the Snorre-H area commenced in the Mid-Bathonian and lasted through the Ryazanian. The Heather Formation was deposited during the early rift stage...
FIGURES | View All (20)
Image
Volgian and <b>Ryazanian</b> palaeogeography and worldwide black shale distributio...
Published: 19 August 2020
Fig. 11. Volgian and Ryazanian palaeogeography and worldwide black shale distribution.
Image
Location of the main sections of the Volgian and <b>Ryazanian</b> in the eastern f...
Published: 01 July 2018
Fig. 1. Location of the main sections of the Volgian and Ryazanian in the eastern foothills of the Northern and Subpolar Urals, West Siberia.
Image
New stratigraphic framework for the <b>Ryazanian</b>–Campanian mudstone succession...
in > Geosphere
Published: 01 June 2017
Figure 7. New stratigraphic framework for the Ryazanian–Campanian mudstone succession in the Traill Ø region. The dark gray regions in the Beds column show the stratigraphic range of index taxa in each unit.
Image
Boreal composite carbon isotope curve; Upper Volgian and <b>Ryazanian</b> ammonite...
Published: 01 April 2015
Fig. 4. Boreal composite carbon isotope curve; Upper Volgian and Ryazanian ammonite, belemnite, and magnetostratigraphic scales for East Siberia, compared with the Tethyan (Mediterranean) standard (refined after ( Bragin et al., 2013 ; Dzyuba et al., 2013 ; Guzhikov, 2013 ). The scale
Image
Chronostratigraphic summary of Upper Jurassic (Bajocian to <b>Ryazanian</b>) depos...
Published: 01 October 2014
Figure 15 Chronostratigraphic summary of Upper Jurassic (Bajocian to Ryazanian) deposition on the Cod terrace and surrounding areas.
Image
Paleogeographic map of the late Kimmeridgian-<b>Ryazanian</b> showing distribution...
Published: 01 April 2002
Figure 5 Paleogeographic map of the late Kimmeridgian-Ryazanian showing distribution of marine environments of the upper Draupne Formation. Oil fields of the Brae trend are superimosed on the mass-flow conglomerates and sands to the west. The Sleipner Vest field outline is shown in the bottom
Image
Upper Volgian and Lower <b>Ryazanian</b> ammonites from NAM well L06–2. All figure...
Published: 01 November 2001
Fig. 6. Upper Volgian and Lower Ryazanian ammonites from NAM well L06–2. All figures natural size. The four small crosses mark onsets of adult body-chambers. [M] refers to macroconch dimorphs. The letters indicate the stratigraphical levels illustrated in Figure  3 . Upper Volgian, upper
Image
Lower <b>Ryazanian</b> ammonites from NAM well L06–2. All figures natural size. [M...
Published: 01 November 2001
Fig. 7. Lower Ryazanian ammonites from NAM well L06–2. All figures natural size. [M] and [m] refer to macroconch and microconeh dimorphs respectively. The letters indicate the stratigraphical levels illustrated in Figure  3 . Lower Ryazanian, Runctoni Zone? [continued] P Praetollia
Image
Lowermost Aptian to uppermost <b>Ryazanian</b> nannofossil zonation scheme compare...
Published: 01 July 2001
Fig. 7. Lowermost Aptian to uppermost Ryazanian nannofossil zonation scheme compared with Bown et al. (1998 ) scheme.
Image
Nannofossil zonation Barremian&#x2F;<b>Ryazanian</b>.
Published: 01 December 2000
Fig. 2 Nannofossil zonation Barremian/Ryazanian.
Image
Nannofossil zonation Barremian&#x2F;<b>Ryazanian</b>.
Published: 01 December 2000
Fig. 2 Nannofossil zonation Barremian/Ryazanian.
Image
δ 18 O (PDB) and δ 13 C (PDB) variation during the <b>Ryazanian</b>–Hauterivian in...
Published: 01 March 2000
Fig. 2. δ 18 O (PDB) and δ 13 C (PDB) variation during the Ryazanian–Hauterivian interval at Speeton. Generalized sedimentary lithology and biostratigraphy from Neale (1960, 1962); Fletcher (1969); Rawson (1971) and Rawson et al. (1978).
Image
Chronostratigraphic chart of the <b>Ryazanian</b>–Hauterivian interval, showing sm...
Published: 01 March 2000
Fig. 5. Chronostratigraphic chart of the Ryazanian–Hauterivian interval, showing smoothed (three point moving average) palaeotemperature and δ 13 C profiles, the global eustatic sea level curve from Haq et al. (1987), and local sea level variation from Ruffell (1991). Clay mineralogy from
Image
—Volgian - <b>Ryazanian</b> sedimentary breaks, onshore England. Black dots repres...
Published: 01 December 1982
FIG. 4 —Volgian - Ryazanian sedimentary breaks, onshore England. Black dots represent phosphate nodule Beds. 1 = Lower Lydite Bed; 2 = Rotunda Nodule Bed; 3 = Upper Lydite Bed; 4 = mid-Spilsby Nodule Bed; 5 = Coprolite Bed.
Journal Article
Published: 01 July 2018
Russ. Geol. Geophys. (2018) 59 (7): 864–890.
...Fig. 1. Location of the main sections of the Volgian and Ryazanian in the eastern foothills of the Northern and Subpolar Urals, West Siberia. ...
FIGURES | View All (13)