A rise in the carbonate compensation depth of western tethys in the carnian (late triassic): deep-water evidence for the carnian pluvial event. (Articolo in rivista)

Type
Label
  • A rise in the carbonate compensation depth of western tethys in the carnian (late triassic): deep-water evidence for the carnian pluvial event. (Articolo in rivista) (literal)
Anno
  • 2007-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.palaeo.2006.09.013 (literal)
Alternative label
  • Rigo M.; Preto N.; Roghi G.; Tateo F.; Mietto P. (2007)
    A rise in the carbonate compensation depth of western tethys in the carnian (late triassic): deep-water evidence for the carnian pluvial event.
    in Palaeogeography, palaeoclimatology, palaeoecology
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Rigo M.; Preto N.; Roghi G.; Tateo F.; Mietto P. (literal)
Pagina inizio
  • 188 (literal)
Pagina fine
  • 205 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 246 (literal)
Rivista
Note
  • Scopu (literal)
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Department of Geology, Paleontology and Geophysics, University of Padova, Via Giotto 1, 35137, Padova, Italy Department of Geology, Paleontology and Geophysics, University of Padova, Via Giotto 1, 35137, Padova, Italy Department of Geology, Paleontology and Geophysics, University of Padova, Via Giotto 1, 35137, Padova, Italy Institute of Geosciences and Earth Resources, C.N.R., C.so Garibaldi 37, 35137, Padova, Italy Department of Geology, Paleontology and Geophysics, University of Padova, Via Giotto 1, 35137, Padova, Italy (literal)
Titolo
  • A rise in the carbonate compensation depth of western tethys in the carnian (late triassic): deep-water evidence for the carnian pluvial event. (literal)
Abstract
  • The Upper Triassic of the Lagonegro Basin (southern Apennines, southern Italy) is represented by hemipelagic cherty limestones of the Calcari con Selce Formation, deposited in an oceanic setting. Two stratigraphic sections (Petina Chiana and Pignola 2), representative of the evolution of the Lagonegro Basin during the Carman, have been studied in detail with a multidisciplinary approach. In the Pignola 2 section, within the Calcari con Selce Formation, a unique interval composed of green shales and radiolarites has been identified. The absence of carbonate deposition within this interval is interpreted as evidence of a contemporaneous shallowing of the Carbonate Compensation Depth. Conodont and palynomorph biostratigraphy constrain the age of this interval to the Julian/Tuvalian (lower Carnian/upper Carman) boundary. The age and characteristics of this interval suggest correlation with a putative climatic event, known as the \"Carnian Pluvial Event\", which has also been recognized in continental and shallow-marine successions from different European localities. This event is thus now documented also in a deep-marine setting. Like the continental and shallow-water settings, it is characterized by a sudden input of siliciclastics. Petina Chiana and Pignola 2 integrate current knowledge of the Carnian distribution of conodonts. Paragondolella praelindae Kozur, to date known only from the lower Tuvalian, has now been documented from the uppermost Julian. Moreover, a drastic turnover was recorded between Julian and Tuvalian conodont assemblages, which is clearly associated with the Camian Pluvial Event. Thus, a biotic crisis, oceanographic changes associated with the rise of the Carbonate Compensation Depth, increased rainfall, and an anomalous siliciclastic input occur contemporaneously at the time of the Camian Pluvial Event. A similar pattern is associated with perturbations of the carbon cycle that occur during the Jurassic and Cretaceous (e.g., in the early Aptian); thus, it is hypothesized that the Carman Pluvial Event may have analogous causes (literal)
Prodotto di
Autore CNR

Incoming links:


Autore CNR di
Prodotto
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi
data.CNR.it