FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2079551310> ?p ?o ?g. }

• W2079551310 endingPage "122" @default.
• W2079551310 startingPage "105" @default.
• W2079551310 abstract "We performed detailed geochemical, mineralogical and calcareous nannofossils investigations on two Maastrichtian–Paleocene sections situated in the Eastern Carpathians, Romania. One of the sections is situated in the Carpathian bend area, in the Ialomiţa Valley and is composed of red marine hemipelagic sediments. The other section is located in the northern region of the Eastern Carpathians, along Varniţa Brook and consists mainly of turbidites. In both sections, the Cretaceous–Paleogene (K–Pg) boundary is characterized by nannoplankton mass extinction (over 90%) of the Cretaceous nannofloras, followed by blooms of survivor taxa, such as the calcareous dinoflagellate genus Thoracosphaera and the nannofloral species Braarudosphaera bigelowii. In the Ialomiţa section, the K–Pg boundary is marked by a drop in calcite and TOC content, as well as a negative excursion in the dC values of organic material. These trends are only partly present in the Varniţa Brook section, where both calcite and TOC content show a decrease, but no negative excursion is seen in the dC values of organic material. Owing to the occurrence of one of the largest biological crises in the continental and marine fauna and flora, the Cretaceous–Paleogene (K–Pg) transition is one of the best-documented periods in Earth history. Numerous studies have argued different causes for the extinction at the K–Pg boundary, for example: a large asteroid impact (Alvarez et al. 1980; Ganapathy 1980; Smit & Hertogen 1980; Smit & Klaver 1981; Perch-Nielsen et al. 1982; Smit 1982; Smit & ten Kate 1982; DePaolo et al. 1983; Montanari et al. 1983; Kyte et al. 1985; Robin et al. 1991); gradual extinction after the impact (Morner 1982); or volcanism (Courtillot et al. 1986; Officer et al. 1987; Crocket et al. 1988; Schmitz et al. 1992; Chenet et al. 2008). Evidence of a large impact crater related to the extinction event has been demonstrated, and most scientists consider the Chicxulub impact crater in Mexico (Toledo & Osuna 1950) as the primary cause of the K–Pg mass extinction (Smit 1991; Sharpton et al. 1992; Heymann et al. 1996; Hildebrand et al. 1999; Smit 1999; Arenillas et al. 2006). There have also been arguments indicating that the ejecta spherules and breccia layers are older than the K–Pg boundary, they are considered to be late Maastrichtian, about 300 000 years below the boundary (Keller et al. 2003, 2007). In Europe, several well-known locations of the K–Pg boundary have been investigated with integrated palaeontological, mineralogical, geochemical and magneto-stratigraphical analyses. These locations belong to the Tethys domain, but not exclusively. For example, the outcrop at Stevns Klint, Denmark was one of the first extensively studied K–Pg boundary successions (Christensen et al. 1973; Smit & ten Kate 1982; Schmitz et al. 1988, 1992; Shukolyukov & Lugmair 1998; Bauluz et al. 2000; Hart et al. 2005; Premovic et al. 2008; Osawa et al. 2009). Also, the Bidart section, France (Bonte et al. 1984; Delacotte et al. 1985; Alegret et al. 2004; Minoletti et al. 2005), as well as Caravaca, Agost and Zumaya, Spain (Bohor et al. 1986; Mount et al. 1986; Ward et al. 1986; Groot et al. 1989; Lamolda 1990; Canudo et al. 1991; Ruiz et al. 1992; Arinobu et al. 1999; Kaiho & Lamolda 1999; Kaiho et al. 1999; Smit 2004; Rodriguez-Tovar 2005, 2006; Paul & Lamolda 2007; VillasanteMarcos et al. 2007), represent some of the most investigated sites. Similarly, the Italian site at Gubbio has also been studied for almost 50 years (Luterbacher & Premoli Silva 1964; Alvarez et al. 1977; Ebihara & Miura 1996; Alvarez 2009). The K–Pg boundary has been identified at the Furlo and Petriccio outcrops, based on the presence of siderophile-rich magnetic spheroids (Smit & Kyte 1984). Other sequences in the Tethys that contain the K–Pg boundary have been described at Forrada in Italy (Fornaciari et al. 2007), at Padriciano, Italy From: Bojar, A.-V., Melinte-Dobrinescu, M. C. & Smit, J. (eds) 2013. Isotopic Studies in Cretaceous Research. Geological Society, London, Special Publications, 382, 105–122. First published online October 7, 2013, http://dx.doi.org/10.1144/SP382.11 # The Geological Society of London 2013. Publishing disclaimer: www.geolsoc.org.uk/pub_ethics by guest on December 10, 2013 http://sp.lyellcollection.org/ Downloaded from" @default.
• W2079551310 created "2016-06-24" @default.
• W2079551310 creator A5058434630 @default.
• W2079551310 creator A5078318407 @default.
• W2079551310 date "2013-01-01" @default.
• W2079551310 modified "2023-10-14" @default.
• W2079551310 title "The Cretaceous–Paleogene boundary in the East Carpathians, Romania: evidence from geochemistry, mineralogy and calcareous nannofossils" @default.
• W2079551310 cites W1576287782 @default.
• W2079551310 cites W1593537872 @default.
• W2079551310 cites W1751869876 @default.
• W2079551310 cites W1847462267 @default.
• W2079551310 cites W1964355271 @default.
• W2079551310 cites W1966264023 @default.
• W2079551310 cites W1966837921 @default.
• W2079551310 cites W1968063802 @default.
• W2079551310 cites W1971937935 @default.
• W2079551310 cites W1972278531 @default.
• W2079551310 cites W1973818652 @default.
• W2079551310 cites W1975007555 @default.
• W2079551310 cites W1976390071 @default.
• W2079551310 cites W1976899479 @default.
• W2079551310 cites W1979611373 @default.
• W2079551310 cites W1981712465 @default.
• W2079551310 cites W1982572431 @default.
• W2079551310 cites W1983044404 @default.
• W2079551310 cites W1985654786 @default.
• W2079551310 cites W1989592629 @default.
• W2079551310 cites W1990339859 @default.
• W2079551310 cites W1992714262 @default.
• W2079551310 cites W1994497942 @default.
• W2079551310 cites W1995840064 @default.
• W2079551310 cites W1997638799 @default.
• W2079551310 cites W1999036884 @default.
• W2079551310 cites W2000415580 @default.
• W2079551310 cites W2002460650 @default.
• W2079551310 cites W2002761521 @default.
• W2079551310 cites W2004246145 @default.
• W2079551310 cites W2004724346 @default.
• W2079551310 cites W2004826881 @default.
• W2079551310 cites W2006108836 @default.
• W2079551310 cites W2007062660 @default.
• W2079551310 cites W2011916250 @default.
• W2079551310 cites W2012183741 @default.
• W2079551310 cites W2013384198 @default.
• W2079551310 cites W2014150571 @default.
• W2079551310 cites W2014344490 @default.
• W2079551310 cites W2016165755 @default.
• W2079551310 cites W2017451459 @default.
• W2079551310 cites W2021476555 @default.
• W2079551310 cites W2029538041 @default.
• W2079551310 cites W2030437111 @default.
• W2079551310 cites W2031126276 @default.
• W2079551310 cites W2032373765 @default.
• W2079551310 cites W2040219210 @default.
• W2079551310 cites W2040248661 @default.
• W2079551310 cites W2040977230 @default.
• W2079551310 cites W2043211412 @default.
• W2079551310 cites W2046446412 @default.
• W2079551310 cites W2048957042 @default.
• W2079551310 cites W2050081835 @default.
• W2079551310 cites W2050490172 @default.
• W2079551310 cites W2053605618 @default.
• W2079551310 cites W2056673698 @default.
• W2079551310 cites W2058469144 @default.
• W2079551310 cites W2058647495 @default.
• W2079551310 cites W2066954242 @default.
• W2079551310 cites W2067260461 @default.
• W2079551310 cites W2072053309 @default.
• W2079551310 cites W2072175261 @default.
• W2079551310 cites W2074482070 @default.
• W2079551310 cites W2076238579 @default.
• W2079551310 cites W2079146218 @default.
• W2079551310 cites W2081551078 @default.
• W2079551310 cites W2082386783 @default.
• W2079551310 cites W2083353939 @default.
• W2079551310 cites W2083355362 @default.
• W2079551310 cites W2084326944 @default.
• W2079551310 cites W2084454392 @default.
• W2079551310 cites W2085262753 @default.
• W2079551310 cites W2086163584 @default.
• W2079551310 cites W2087078687 @default.
• W2079551310 cites W2089365649 @default.
• W2079551310 cites W2093476971 @default.
• W2079551310 cites W2095303991 @default.
• W2079551310 cites W2095688665 @default.
• W2079551310 cites W2096181841 @default.
• W2079551310 cites W2098640178 @default.
• W2079551310 cites W2100508991 @default.
• W2079551310 cites W2101846685 @default.
• W2079551310 cites W2110619496 @default.
• W2079551310 cites W2116735545 @default.
• W2079551310 cites W2125181710 @default.
• W2079551310 cites W2125591480 @default.
• W2079551310 cites W2126767740 @default.
• W2079551310 cites W2130109955 @default.
• W2079551310 cites W2143879128 @default.
• W2079551310 cites W2149596606 @default.
• W2079551310 cites W2149705273 @default.

• next