The Argentina Continental Margin / SpringerBriefs in Earth System Sciences (PDF)
A Potential Paleoclimatic-Paleoceanographic Archive for the Southern Ocean
(Sprache: Englisch)
The evolution of the Argentina Continental Margin during the Quaternary and the stratigraphic and morphosedimentary configuration responded to climatic variability, oceanographic changes, glacioeustatic fluctuations and tectono-isostatic processes, which...
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The evolution of the Argentina Continental Margin during the Quaternary and the stratigraphic and morphosedimentary configuration responded to climatic variability, oceanographic changes, glacioeustatic fluctuations and tectono-isostatic processes, which began to impact on the margin during previous geological periods. The final modeling of the margin was achieved in the late Miocene, when the interaction between the Antarctic and North Atlantic water-masses favored climatic and oceanographic changes with a profound effect on morphosedimentary features. In the Quaternary, the different regions of the margin distinctly responded to such changes. Whereas in the shelf the main modeling factors were the sea-level fluctuations of glacioeustatic origin and consequent marine-continental stratigraphic records, in the slope (particularly in the sector corresponding to the passive margin) the prevailing effect was the interaction between water-masses and the sea floor, giving origin to contouritic depositional systems accompanied of gravity processes responsible of turbiditic and mass-wasting deposits. Different relationships between contouritic and turbiditic facies respond to distinct combinations of oceanic circulation variability and the indirect effect on the sea floor of sea-level fluctuations.
As a result of this complexity in the regional processes in the framework of the broad hemispheric oceanographic-climatic conditioning factors, the ACM can be considered as a complete archive for the Southern Ocean.
As a result of this complexity in the regional processes in the framework of the broad hemispheric oceanographic-climatic conditioning factors, the ACM can be considered as a complete archive for the Southern Ocean.
Autoren-Porträt von Roberto A. Violante, Cecilia Laprida, Natalia L. García Chapori
Dr. Roberto Antonio Violante has a degree in Geology from the Faculty of Natural Sciences, University of La Plata, Argentina. Basic degree obtained in 1975. PhD obtained in 1988. Specialized in Coastal Geology at Florida State University, Tallahassee, Florida, USA.He has been working at the Argentina Hydrographic Survey since 1975, in the division of Marine Geology and Geophysics (Department of Oceanography). He is presently a Principal Researcher, Projects Director and Chief of the Marine Geology Section. His main research interests are: marine, coastal and lacustrine geology; sedimentary process; seismic-stratigraphy; geomorphology; marine sedimentation (shelf-slope); contouritic and turbiditic processes.
Dr. Cecilia Laprida has a degree in Biology from the Faculty of Natural Sciences, University of Buenos Aires (Argentina), obtained in 1992, and a PhD degree in Biology obtained in 1998. Specialized in Micropaleontology, she presently acts as Professor of Paleobiology at the Ecology, Genetics and Evolution Department at Buenos Aires University, and Independent Researcher of the National Council of Scientific and Technical Research in the Institute of Andean Studies "Don Pablo Groeber" (UBA-CONICET). Her main research interests are foraminifera and ostracods as proxies for Late Quaternary climatic and environmental reconstructions in marine and continental settings.
Dr. Natalia García Chapori has a degree in Biology from the Faculty of Natural Sciences, University of Buenos Aires (Argentina), obtained in 2007, and a PhD degree in Geology obtained in 2013. Specialized in the Paleoceanography of the western South Atlantic during the Quaternary, she presently acts as Assistant Researcher of the National Council of Scientific and Technical Researchin the SACMa group of the Institute of Andean Studies "Don Pablo Groeber" (UBA-CONICET). Her main research interests are: paleocenographic and paleoclimatic reconstruction of the quaternary, foraminifera as environmental
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proxies; multivariate statistics as tool of environmental reconstruction.
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Bibliographische Angaben
- Autoren: Roberto A. Violante , Cecilia Laprida , Natalia L. García Chapori
- 2017, 1st ed. 2017, 117 Seiten, Englisch
- Verlag: Springer-Verlag GmbH
- ISBN-10: 3319041967
- ISBN-13: 9783319041964
- Erscheinungsdatum: 24.03.2017
Abhängig von Bildschirmgröße und eingestellter Schriftgröße kann die Seitenzahl auf Ihrem Lesegerät variieren.
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