Articles with "jurassic cretaceous" as a keyword



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The Jurassic–Cretaceous boundary interval in non-marine strata of northwest Europe – New light on an old problem

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Published in 2017 at "Cretaceous Research"

DOI: 10.1016/j.cretres.2017.06.002

Abstract: Abstract The non-marine Purbeck- and Wealden-type sediments of latest Jurassic (Tithonian) and earliest Cretaceous (Berriasian) age in northern Germany were deposited in a restricted intercontinental basin. They mark an interval of strong faunal and floral… read more here.

Keywords: northwest europe; marine; jurassic cretaceous; non marine ... See more keywords
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Ammonite biostratigraphy and bioevents in the Jurassic – Cretaceous boundary of central Chile

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Published in 2020 at "Cretaceous Research"

DOI: 10.1016/j.cretres.2019.104282

Abstract: Abstract Ammonites are abundant and well preserved in the Tithonian-Valanginian (Upper Jurassic – Lower Cretaceous) sedimentary successions of the central Chilean Andes, known as the Lo Valdes and Banos del Flaco Formations. A total of… read more here.

Keywords: ammonite biostratigraphy; cretaceous boundary; bioevents jurassic; biostratigraphy bioevents ... See more keywords
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Tethyan calpionellids in the Neuquén Basin (Argentine Andes), their significance in defining the Jurassic/Cretaceous boundary and pathways for Tethyan-Eastern Pacific connections

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Published in 2017 at "Journal of South American Earth Sciences"

DOI: 10.1016/j.jsames.2017.06.007

Abstract: Abstract The study of calpionellid distribution in the well-documented Las Loicas section of the Vaca Muerta Formation in the Neuquen Basin, Argentine Andes, allows the recognition of the upper part of the Crassicollaria Zone and… read more here.

Keywords: cretaceous boundary; basin argentine; calpionella; jurassic cretaceous ... See more keywords
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Reply to comments on: “Tethyan calpionellids in the Neuquén Basin (Argentine Andes), their significance in defining the Jurassic/Cretaceous boundary and pathways for Tethyan-Eastern Pacific connections” by Kietzmann & Iglesia Llanos

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Published in 2017 at "Journal of South American Earth Sciences"

DOI: 10.1016/j.jsames.2017.12.003

Abstract: Abstract The comments by Kietzmann & Iglesia Llanos (Comment on “Tethyan calpionellids in the Neuquen Basin (Argentine Andes), their significance in defining the Jurassic/Cretaceous boundary and pathways for Tethyan-Eastern Pacific connections” by R. Lopez-Martinez, B.… read more here.

Keywords: cretaceous boundary; tethyan calpionellids; kietzmann iglesia; iglesia llanos ... See more keywords
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Organic geochemical characteristics and accumulation of the organic matter in the Jurassic to Cretaceous sediments of the Saihantala Sag, Erlian Basin, China

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Published in 2018 at "Marine and Petroleum Geology"

DOI: 10.1016/j.marpetgeo.2018.01.002

Abstract: Abstract The organic petrology and organic geochemistry of Jurassic to Cretaceous hydrocarbon source rocks from the Saihantala Sag, the Erlian Basin, have been analyzed to determine their geochemical characteristics, hydrocarbon potential and organic matter accumulation.… read more here.

Keywords: saihantala sag; accumulation; matter; formation ... See more keywords
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Palynofacies, micropalaeontology, and source rock evaluation of non-marine Jurassic–Cretaceous boundary deposits from northern Germany - Implications for palaeoenvironment and hydrocarbon potential

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Published in 2019 at "Marine and Petroleum Geology"

DOI: 10.1016/j.marpetgeo.2019.02.016

Abstract: Abstract The Jurassic–Cretaceous boundary interval of northern Germany is characterised by non-marine deposits attributed to the Purbeck and Wealden facies. These organic-rich sediments were deposited under restricted, brackish-lacustrine conditions in a palaeogeographically isolated basin (Lower… read more here.

Keywords: micropalaeontology; non marine; northern germany; jurassic cretaceous ... See more keywords
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Detrital Zircon U-Pb Data for Jurassic–Cretaceous Strata from the South-Eastern Verkhoyansk-Kolyma Orogen—Correlations to Magmatic Arcs of the North-East Asia Active Margin

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Published in 2021 at "Minerals"

DOI: 10.3390/min11030291

Abstract: We performed U-Pb dating of detrital zircons collected from Middle–Upper Jurassic strata of the Sugoi synclinorium and Cretaceous rocks of the Omsukchan (Balygychan-Sugoi) basin, in order to identify their provenance and correlate Jurassic–Cretaceous sedimentation of… read more here.

Keywords: south eastern; verkhoyansk; eastern verkhoyansk; kolyma ... See more keywords
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The Jurassic-Cretaceous boundary in Boreal Russia: radiolarian and calcareous dinoflagellate potential biomarkers

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Published in 2017 at "Geological Quarterly"

DOI: 10.7306/gq.1370

Abstract: The International Berriasian Working Group (ISCS) suggested primary and secondary marker “datums” to fix the basal Berriasian boundary and thus to define the Jurassic-Cretaceous boundary (Wimbledon et al., 2011, 2013). Two primary markers Calpionella ,… read more here.

Keywords: cretaceous boundary; calcareous dinoflagellate; boundary boreal; jurassic cretaceous ... See more keywords