Results 1 to 10 of about 4,384 (164)

New record of Pseudocidaris sp. (Echinoidea:Hemicidaridae) of lower Cretaceous (Valanginian-Hauterivian) from Zapatoca, (Santander Colombia).

open access: yesIngeniería Investigación y Desarrollo, 2015
In this study it is reported and described a regular echinoderm of Pseudocidaris genus in the Rosablanca Formation of Lower Cretaceous at the municipality of Zapatoca (Santander, Colombia).
Javier Hernando Jerez-Jaimes   +2 more
doaj   +1 more source

CALLOVIAN RADIOLARIANS FROM THE LOWERMOST CALCARE SELCIFERO DI FONZASO AT PONTE SERRA (TRENTO PLATEAU, SOUTHERN ALPS, ITALY)

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2008
This paper deals with radiolarian biostratigraphy of the Calcare Selcifero di Fonzaso at the type-section of Ponte Serra (Southern Alps, Italy). The Ponte Serra section is located on the easternmost part of the Trento Plateau and represents an early ...
PAOLA BECCARO   +3 more
doaj   +1 more source

Division and resources evaluation of hydrocarbon plays in the Amu Darya basin, central Asia

open access: yesPetroleum Exploration and Development, 2015
Based on the newest geological data and exploration achievements and the analysis of hydrocarbon accumulation elements and distribution rules of oil and gas fields, hydrocarbon plays are divided according to the reservoirs in the Amu Darya basin, central
Yixin YU   +6 more
doaj   +1 more source

The Jurassic of North-East Greenland: A new Middle–Upper Jurassic succession on Hold with Hope, North-East Greenland [PDF]

open access: yesGeological Survey of Denmark and Greenland Bulletin, 2004
A succession of marine, Jurassic sediments was recently discovered on Hold with Hope, North-East Greenland. The discovery shows that the area was covered by the sea during Middle–Late Jurassic transgressive events and thus adds to the understanding of ...
Vosgerau, Henrik   +3 more
doaj  

DOCUMENTATION AND SIGNIFICANCE OF TECTONIC EVENTS IN THE NORTHERN TABAS BLOCK (EAST-CENTRAL IRAN) DURING THE MIDDLE AND LATE JURASSIC

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2004
Apart from global sea-level fluctuations, the sedimentary pattern of the northern Tabas Block during the Middle and Late Jurassic was mainly governed by tectonic events of varying intensity and areal extent.
KAZEM SEYED-EMAMI   +2 more
doaj   +1 more source

The Jurassic of North-East Greenland: Jurassic dinoflagellate cysts from Hochstetter Forland, North-East Greenland [PDF]

open access: yesGeological Survey of Denmark and Greenland Bulletin, 2004
Three sections in Hochstetter Forland, North-East Greenland, referred to the Jurassic Payer Dal and Bernbjerg Formations, have been analysed for dinoflagellate cysts.
Piasecki, Stefan, Stemmerik, Lars
doaj  

NUOVI CONTRIBUTI PER L'INTERPRETAZIONE GEOLOGICA E PALEOGEOGRAFICA DELLE PREALPI GIULIE (FRIULI ORIENTALE): IL POZZO SPAN 1

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2020
This paper deals with the stratigraphy of well SPAN 1 (San Pietro al Natisone, Eastern Friuli). The stratigraphic sequence is composed by Paleocenic flysch deposits (from 69 m to 748 m), Maastrichtian resedimented carbonates (from 748 m to 940 m) and ...
DARIO SARTORIO   +2 more
doaj  

L'évolution des peuplements d'ammonites au cours de l'Oxfordien inférieur (Zone à Mariae et Zone à Cordatum) du Jura (Est de la France) [The evolution of ammonite associations during the Early Oxfordian (Mariae and Cordatum zones) in the Jura area (eastern France)]

open access: yesCarnets de Géologie, 2010
The study of more than 40 sections in the "Creniceras renggeri marls" of the French Jura Range (Lower Oxfordian) has found: * a precise biochronostratigraphic subdivison of 16 successive populations or associations which appears to be stable over the ...
Jardat Rémi
doaj  

Gondwanan cyrtocrinids uncover hidden diversity and crinoid dispersal pathways

open access: yesScientific Reports
The post-Palaeozoic crinoid order Cyrtocrinida exhibits remarkable morphological diversity and ecological versatility, yet its fossil record from southern continents remains fragmentary and poorly understood.
Mariusz A. Salamon   +5 more
doaj   +1 more source

Callovian and Oxfordian boundary in the Timan-Pechora province [PDF]

open access: yesNeftegazovaya Geologiya. Teoriya I Praktika, 2014
Yu.S. Repin, V.V. Bystrova
openaire   +1 more source

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