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CHALLENGES IN ORBITOLINID IDENTIFICATION AND BIOSTRATIGRAPHIC CONSEQUENCES: AN APTIAN EXAMPLE
Acta Palaeontologica RomaniaeThe 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 ...
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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 +5 more
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Habitats of Bivalves in the Lower-Cretaceous Aptian Tanohata and Aptian to Albian Hiraiga Formations, Iwate Prefecture, Northeastern JapanWe reconstructed the depositional environments, assemblages, and habitats of characteristic bivalve species in the Cretaceous Miyako Group, Iwate Prefecture, Northeast Japan. The upper part of the Aptian Tanohata Formation and the lower part of the Aptian to Albian Hiraiga Formation are composed mainly of wave- and storm-dominated shoreface and inner ...
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A remarkable thiolliericrinid crinoid from the Aptian of northeastern Algeria
Neues Jahrbuch für Geologie und Paläontologie - AbhandlungenSalamon, Mariusz A. +8 more
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Astrochronology of the Aptian Stage and Evidence for the Chaotic Orbital Motion of Mercury
Earth and Planetary Science Letters, 2023 International audienceThe Aptian stage, between ∼113 and ∼121 million years ago (Ma), was punctuated by a succession of Oceanic Anoxic Events (OAEs), recording extreme global warmings, dramatic expansions of the ocean's oxygen minimum zones, along with ...
Slah Boulila +2 more
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Integrated Cyclostratigraphy of the Cau Core (SE Spain) - A Timescale for Climate Change During the Early Aptian Anoxic Event (OAE 1a) and the Late Aptian [PDF]
Global and Planetary ChangeWe report a cyclostratigraphic study performed on the Cau core (Spain), which is considered an Aptian stratigraphic reference for global correlation and paleoenvironmental reconstruction.
José Manuel Castro +2 more
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Astronomical tuning of the Aptian Stage
2021<p>We present a new astronomical tuning for the Aptian stage, based on the combined record of the Piobbico Core (Umbria-Marche Basin, central Italy - this study) and the Cismon Core (Belluno Basin, northwestern Italy - Malinverno et al., 2010).
Gabriele Gambacorta +5 more
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Aptian anoxia in the Pacific Basin
Geology, 1989Marine strata of Aptian age in the Pacific Basin include two distinct levels that represent episodes during which sediments rich in organic carbon were deposited. Both episodes lasted less than 1 m.y., as revealed in strata deposited atop submerged topographic highs.
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Earth and Planetary Science Letters, 2011
We present initial isotopic ratios of lead for Early Cretaceous (Barremian–Aptian) sections from Shatsky Rise (Pacific) and Gorgo a Cerbara (Italy). Our Pb isotopic data track an interval representing Oceanic Anoxic Event (OAE)-1a, which is characterized by quasi-global deposition of organic carbon-rich black shale.
J. Kuroda +9 more
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We present initial isotopic ratios of lead for Early Cretaceous (Barremian–Aptian) sections from Shatsky Rise (Pacific) and Gorgo a Cerbara (Italy). Our Pb isotopic data track an interval representing Oceanic Anoxic Event (OAE)-1a, which is characterized by quasi-global deposition of organic carbon-rich black shale.
J. Kuroda +9 more
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