Results 31 to 40 of about 5,375 (265)

A bajocian (Middle jurassic) marine gastropod assemblage from the badamu formation, Central Iran [PDF]

open access: yes, 2016
Nine species of gastropods are reported from the Bajocian (Middle Jurassic) part of the Badamu Formation of Central Iran. This is the first report of a gastropod assemblage of this age from the shelves of the Kimmerian Continent.
Binazadeh, Tayyeb   +2 more
core   +1 more source

Middle Jurassic radiolarian assemblages from Zlatar Mt. (SW Serbia) [PDF]

open access: yesGeološki Anali Balkanskoga Poluostrva, 2010
Detailed micropalaeontological research of Jurassic siliceous rocks was performed at the locality Komarani on the eastern flanks of the area of Mt. Zlatar in SW Serbia.
Đerić Nevenka   +2 more
doaj   +1 more source

Middle Jurassic multi‐scale transgressive–regressive cycles: An example from the Lusitanian Basin

open access: yesThe Depositional Record, 2023
Multi‐scale transgressive–regressive cycles from the mid‐Jurassic were recognised in the Central Lusitanian Basin, Portugal. These cycles allow the depositional evolution of the basin to be better understood and aid in the construction of stratigraphic ...
Antonio J. C. Magalhães   +15 more
doaj   +1 more source

Synonymy and stratigraphic ranges of Belemnopsis in the Heterian and Ohauan Stages (Callovian-Tithonian), southwest Auckland, New Zealand. [PDF]

open access: yes, 2003
Belemnopsis stevensi, Belemnopsis maccrawi, and Belemnopsis sp. A (Challinor 1979a) are synonymous; B. stevensi has priority. New belemnite material from Kawhia Harbour and Port Waikato, together with graphical study methods, indicates that many small ...
Challinor A. B.   +14 more
core   +2 more sources

Lithologic-facies and paleogeographic features of Mid-Upper Jurassic oil-gas bearing sediments in Nurolsk depression (Western Siberia) [PDF]

open access: yes, 2015
Bathonian-Callovian-Oxfordian sedimentation environment reconstruction in SE Nurolsk depression, Western Siberia has been described. Paleogeographic and litho-geochemical features of sediments, numerous plant remains and ichnofossils indicated the fact ...
Baranova, Anastasia Viktorovna   +3 more
core   +2 more sources

Callovian–Oxfordian hecticoceratins from western India: Their biostratigraphic and palaeobiogeographic implications

open access: yesJournal of Palaeogeography, 2014
The Kutch Basin of western India is famous for its rich assemblages of the Callovian–Oxfordian ammonites. The family Oppelidae Douvillé is the second most diverse ammonite group after perisphinctids during the Middle–Upper Jurassic.
Pinaki Roy
doaj   +1 more source

Building of the complicated seismogeological model of probable Callovian reservoirs within the Eastern Sulak swell of the Middle Caspian Sea area [PDF]

open access: yesНефтегазовая геология: Теория и практика, 2023
The purpose of this study was a detailed analysis of Callovian strata to identify the eventually zones of reservoir within the studied structure N, located of the southwestern part of the Middle Caspian Sea area.
Gal'perina A.A.   +2 more
doaj  

On the “Macrocephalites macrocephalus” Zone of the lower Callovian in NW Bulgaria [PDF]

open access: yesGeologica Balcanica, 2019
Studia breviora, no abstract is available.
Metodiev, Lubomir, Sapunov, Ivo
openaire   +1 more source

MIDDLE JURASSIC-LOWER CRETACEOUS BIOSTRATIGRAPHY IN THE CENTRAL PONTIDES (TURKEY): REMARKS ON PALEOGEOGRAPHY AND TECTONIC EVOLUTION

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 1998
The deposition of Jurassic-Lower Cretaceous carbonates in the Pontides was controlled mainly by the evolution of an Atlantic-type continental margin in the Tethys.
BORA ROJAY, DEMIR ALTINER
doaj   +1 more source

Stratigraphy, facies and geodynamic settings of Jurassic formations in the Bükk Mountains, North Hungary: its relations with the other areas of the Neotethyan realm. [PDF]

open access: yes, 2013
Jurassic mélange complexes related to the subduction of the Neotethys Ocean occur in the Bükk Mountains, North Hungary. This paper characterizes the sedimentary sequence of basin and slope facies that occur in the southwestern part of the Bükk ...
Allemann   +99 more
core   +1 more source

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