Results 101 to 110 of about 7,617 (206)

Aptian lithostratigraphy and biostratigraphy (foraminifera) of block 49 in the southern North Sea (U.K. sector)

, 1987
. Strata of Aptian age in block 49 of the southern North Sea (U.K.) are reviewed in terms of lithostratigraphy, wireline log character and foraminiferal fauna.
Stephen Crittenden
core   +1 more source

Uppermost lower aptian transgressive records in mexico and spain: chronostratigraphic implications for the Tethyan sequences [PDF]

, 2012
A widespread marine transgression, which began at the very end of the Early Aptian, is well recorded in Mexico and Spain. In Mexico, this transgression was the most important Aptian transgressive event and its record begins in the Dufrenoyia justinae ...
Moreno-Bedmar, Josep A., Bover-Arnal, Telm, Salas, Ramon, Barragán, Ricardo   +3 more
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Glomospirella cantabrica n. sp., and other benthic foraminifera from Lower Cretaceous Urgonian-type carbonates of Cantabria, Spain: Biostratigraphic implications

Geologica Acta, 2016
A new benthic foraminifer is described as Glomospirella cantabrica n. sp. from several sections of the upper Aptian Reocín Formation and one occurrence from the lowermost Albian Las Peñosas Formation of Cantabria (northern Spain). It represents a rather
F. SCHLAGINTWEIT, I. ROSALES, M. NAJARRO
doaj  

Speculative petroleum systems of the Punta del Este Basin (offshore Uruguay)

Brazilian Journal of Geology
: The Uruguayan continental margin was generated as the result of the breakup of Gondwana and, later, the opening of the South Atlantic Ocean, which began in the Jurassic.
Ethel Morales, Hung Kiang Chang, Matías Soto, Gerardo Veroslavsky, Bruno Conti, Héctor de Santa Ana, Fernando Santos Corrêa   +6 more
doaj   +1 more source

Aptian-Albian coral faunas from the Sierra de Carche (Prebetic, Murcia, southern Spain) [PDF]

, 2015
Three small coral faunas from the Eartly Aptian, Latest Aptian and Late Albian from a sedimentary section in the Sierra del Carche are described. A total of 17 species in 15 genera of the suborders Amphiastraeina, Archaeocaeniina, Faviina, Fungiina ...
Arias, Consuelo, Vilas Minondo, Lorenzo, Vilas, Lorenzo, Löser, Hanner, Löser, Hannes   +4 more
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Calcium isotopes link ocean acidification to Aptian–Albian foraminiferal extinctions

The second-largest extinction event in the evolutionary history of planktic foraminifera occurred at the Aptian–Albian boundary. This extinction may reflect ocean acidification (OA) associated with Oceanic Anoxic Event 1b. As calcium
Kenneth G. MacLeod, Andrew D. Jacobson, Jonathan Chen, Anna R. Waldeck, Brian T. Huber, Barbara Balestra, Chuyan Wan, Bradley B. Sageman   +7 more
core   +1 more source

Sedimentary evolution of an Aptian syn-rift carbonate system (Maestrat Basin, E Spain): effects of accommodation and environmental change

Geologica Acta, 2010
We report an integrated study of an expanded and relatively complete syn-rift continental to epeiric marine succession of Aptian age, cropping out in the western Maestrat Basin (eastern Iberian Chain).
T. BOVER ARNAL, J.A. MORENO BEDMAR, R. SALAS, P.W. SKELTON, K. BITZER, E GILI FOLCH   +5 more
doaj  

CHALLENGES IN ORBITOLINID IDENTIFICATION AND BIOSTRATIGRAPHIC CONSEQUENCES: AN APTIAN EXAMPLE

Acta Palaeontologica Romaniae
The much-cited importance of Orbitolinidae in biostratigraphy depends on the species and time-interval under consideration. In any case, correct species identification is of primary importance as the basis for drawing conclusions. This task is best achieved in an assemblage where centered sections (axial and transverse) showing all details of the ...
openaire   +2 more sources

The Aia-Zaldibia trough (Lower Aptian, Aralar, Gipuzkoa)

, 1997
Detailed mapping, facies analysis and thickness distribution of a lower Aptian succession in the Aralar area, led to the establishment of a sedimentary trough for the early Aptian in the Aia-Zaldibia section.
García Mondéjar, Joaquín, Lertxundi, D.   +1 more
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