{"title":"What causes mass extinctions? Large asteroid/comet impacts, flood-basalt volcanism, and ocean anoxia—Correlations and cycles","authors":"M. Rampino, K. Caldeira, A. Prokoph","doi":"10.1130/2019.2542(14)","DOIUrl":"https://doi.org/10.1130/2019.2542(14)","url":null,"abstract":"","PeriodicalId":176885,"journal":{"name":"250 Million Years of Earth History in Central Italy: Celebrating 25 Years of the Geological Observatory of Coldigioco","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126709563","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
S. Boschi, B. Schmitz, F. Terfelt, L. Ros, M. Elfman, P. Kristiansson, Camilla Sulas, S. Monechi, A. Montanari
{"title":"Popigai impact ejecta layer and extraterrestrial spinels recovered in a new Italian location—The Monte Vaccaro section (Marche Apennines, Italy)","authors":"S. Boschi, B. Schmitz, F. Terfelt, L. Ros, M. Elfman, P. Kristiansson, Camilla Sulas, S. Monechi, A. Montanari","doi":"10.1130/2019.2542(19)","DOIUrl":"https://doi.org/10.1130/2019.2542(19)","url":null,"abstract":"","PeriodicalId":176885,"journal":{"name":"250 Million Years of Earth History in Central Italy: Celebrating 25 Years of the Geological Observatory of Coldigioco","volume":"99 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121140465","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. Sinnesael, A. Montanari, F. Frontalini, R. Coccioni, J. Gattacceca, C. Snoeck, W. Wegner, C. Koeberl, L. Morgan, N. Winter, D. DePaolo, P. Claeys
{"title":"Multiproxy Cretaceous-Paleogene boundary event stratigraphy: An Umbria-Marche basinwide perspective","authors":"M. Sinnesael, A. Montanari, F. Frontalini, R. Coccioni, J. Gattacceca, C. Snoeck, W. Wegner, C. Koeberl, L. Morgan, N. Winter, D. DePaolo, P. Claeys","doi":"10.1130/2019.2542(07)","DOIUrl":"https://doi.org/10.1130/2019.2542(07)","url":null,"abstract":"The complete and well-studied pelagic carbonate successions from the Umbria- Marche basin (Italy) permit the study of the event-rich stratigraphic interval around the Cretaceous-Paleogene boundary (e.g., Deccan volcanism, boundary impact, Paleocene recovery, and climate). To test the robustness of various proxy records (bulk carbonate δ13C, δ18O, 87Sr/86Sr, and Ca, Fe, Sr, and Mn concentrations) inside the Umbria-Marche basin, several stratigraphically equivalent sections were investigated (Bottaccione Gorge, Contessa Highway, Fornaci East quarry, Frontale, Morello, and Petriccio core). Besides the classical Gubbio sections of Bottaccione and Contessa, the new Morello section is put forward as an alternative location for this stratigraphic interval because it is less altered by burial diagenesis. Elemental profiles (Ca, Fe, Sr, Mn) acquired by handheld X-ray fluorescence (pXRF) efficiently provide regional chemostratigraphic and paleoenvironmental information. The Deccan volcanism, the Cretaceous-Paleogene boundary, the characteristic pattern of the Sr/Ca profile across the boundary driven by the extinction and recovery of coccolithophores, and the Dan- C2 hyperthermal event are examples of such recorded paleoenvironmental events. Moreover, cyclostratigraphic analyses of proxies of detrital input (magnetic susceptibility and Fe concentrations) show the imprint in the sedimentary record of a 2.4 m.y. eccentricity minimum around 66.45-66.25 Ma, and suggest that the occurrence of the Dan-C2 hyperthermal event was astronomically paced.","PeriodicalId":176885,"journal":{"name":"250 Million Years of Earth History in Central Italy: Celebrating 25 Years of the Geological Observatory of Coldigioco","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123443179","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
E. Tavarnelli, V. Scisciani, S. Patruno, F. Calamita, P. Pace, D. Iacopini
{"title":"The role of structural inheritance in the evolution of fold-and-thrust belts: Insights from the Umbria-Marche Apennines, Italy","authors":"E. Tavarnelli, V. Scisciani, S. Patruno, F. Calamita, P. Pace, D. Iacopini","doi":"10.1130/2019.2542(10)","DOIUrl":"https://doi.org/10.1130/2019.2542(10)","url":null,"abstract":"","PeriodicalId":176885,"journal":{"name":"250 Million Years of Earth History in Central Italy: Celebrating 25 Years of the Geological Observatory of Coldigioco","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133993161","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Thermophysical properties and mineralogical composition of the Umbria-Marche carbonate succession (central Italy)","authors":"J. Chicco, M. Verdoya, G. Giuli, C. Invernizzi","doi":"10.1130/2019.2542(02)","DOIUrl":"https://doi.org/10.1130/2019.2542(02)","url":null,"abstract":"","PeriodicalId":176885,"journal":{"name":"250 Million Years of Earth History in Central Italy: Celebrating 25 Years of the Geological Observatory of Coldigioco","volume":"150 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115679413","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Distribution of chrome-spinel grains across the3He anomaly of the Tortonian Stage at the Monte dei Corvi section, Italy","authors":"S. Boschi, B. Schmitz, A. Montanari","doi":"10.1130/2019.2542(21)","DOIUrl":"https://doi.org/10.1130/2019.2542(21)","url":null,"abstract":"","PeriodicalId":176885,"journal":{"name":"250 Million Years of Earth History in Central Italy: Celebrating 25 Years of the Geological Observatory of Coldigioco","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126952340","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Luis Erick Aguirre-Palafox, W. Álvarez, S. Boschi, E. Martin, B. Schmitz
{"title":"Zircon provenance analysis from Lower Paleocene pelagic limestones of the Bottaccione section at Gubbio (Umbria-Marche basin, Italy)","authors":"Luis Erick Aguirre-Palafox, W. Álvarez, S. Boschi, E. Martin, B. Schmitz","doi":"10.1130/2019.2542(08)","DOIUrl":"https://doi.org/10.1130/2019.2542(08)","url":null,"abstract":"","PeriodicalId":176885,"journal":{"name":"250 Million Years of Earth History in Central Italy: Celebrating 25 Years of the Geological Observatory of Coldigioco","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122052736","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The little big history of the Geological Observatory of Coldigioco","authors":"A. Montanari","doi":"10.1130/2019.2542(001)","DOIUrl":"https://doi.org/10.1130/2019.2542(001)","url":null,"abstract":"","PeriodicalId":176885,"journal":{"name":"250 Million Years of Earth History in Central Italy: Celebrating 25 Years of the Geological Observatory of Coldigioco","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127598789","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. Montanari, D. Bice, A. Jull, A. Kudryavtsev, J. Macalady, Irene Schaperdoth, W. Sharp, D. Shimabukuro, William Schopf, V. Vučetič
{"title":"Pelagosite revisited: The origin and significance of a laminated aragonitic encrustation of Mediterranean supralittoral rocks","authors":"A. Montanari, D. Bice, A. Jull, A. Kudryavtsev, J. Macalady, Irene Schaperdoth, W. Sharp, D. Shimabukuro, William Schopf, V. Vučetič","doi":"10.1130/2019.2542(28)","DOIUrl":"https://doi.org/10.1130/2019.2542(28)","url":null,"abstract":"","PeriodicalId":176885,"journal":{"name":"250 Million Years of Earth History in Central Italy: Celebrating 25 Years of the Geological Observatory of Coldigioco","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114812433","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Cretaceous-Paleogene boundary tsunamite on the Adriatic carbonate platform and possible source of a hypothetical Atlantic-to-western-Tethys megatsunami","authors":"Tvrtko Korbar","doi":"10.1130/2019.2542(16)","DOIUrl":"https://doi.org/10.1130/2019.2542(16)","url":null,"abstract":"","PeriodicalId":176885,"journal":{"name":"250 Million Years of Earth History in Central Italy: Celebrating 25 Years of the Geological Observatory of Coldigioco","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117137920","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}