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Articles 28 records found  beginprevious12 - 21next  jump to record: Search took 0.00 seconds. 
12.
11 p, 811.1 KB Evaluating the effect of marine diagenesis on late Miocene pre-evaporitic sedimentary successions of Eastern Mediterranean Sea / Antonarakou, Assimina (Panepistēmio Athēnōn. Department of Historical Geology and Paleontology) ; Kontakiotis, George (Panepistēmio Athēnōn. Department of Historical Geology and Paleontology) ; Vasilatos, Charalampos (Panepistēmio Athēnōn. Department of Historical Geology and Paleontology) ; Besiou, Eva (Panepistēmio Athēnōn. Department of Historical Geology and Paleontology) ; Zarkogiannis, Stergios (Panepistēmio Athēnōn. Department of Historical Geology and Paleontology) ; Drinia, Hara (Panepistēmio Athēnōn. Department of Historical Geology and Paleontology) ; Mortyn, P. Graham (Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals) ; Tsaparas, Nikolaos (Panepistēmio Athēnōn. Department of Historical Geology and Paleontology) ; Makri, Panayota (Panepistēmio Athēnōn. Department of Historical Geology and Paleontology) ; Karakitsios, Vasileios (Panepistēmio Athēnōn. Department of Historical Geology and Paleontology) ; Universitat Autònoma de Barcelona. Departament de Geografia
The microstructure and geochemical composition of foraminiferal tests are valuable archives for the reconstruction of paleoclimatic and paleoecological changes. In this context, the late Miocene Globigerinoides obliquus shells from Faneromeni section (Crete Island) were investigated through Scanning Electron Microscopy (SEM) imaging, Energy Dispersive System (EDS) analysis and X-Ray Diffraction (XRD) spectroscopy in order to evaluate their potential as paleoenvironmental archives in the eastern Mediterranean. [...]
2019 - 10.1088/1755-1315/221/1/012051
IOP conference series: Earth and environmental science, Vol. 221, conference 1 (2019) , art. 012051  
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13.
22 p, 7.5 MB Low planktic foraminiferal diversity and abundance observed in a spring 2013 west-east Mediterranean Sea plankton tow transect / Mallo, Miguel (Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals) ; Schiebel, Ralf (Max Planck Institute for Chemistry) ; Grelaud, Michael (Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals) ; Ziveri, Patrizia (Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals) ; Mortyn, P. Graham (Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals)
Planktic foraminifera were collected with 150 µm BONGO nets from the upper 200 m water depth at 20 stations across the Mediterranean Sea between 2 May and 2 June 2013. The main aim is to characterize the species distribution and test the covariance between foraminiferal area density (ρA) and seawater carbonate chemistry in a biogeochemical gradient including ultraoligotrophic conditions. [...]
2017 - 10.5194/bg-14-2245-2017
Biogeosciences, Vol. 14 (April 2017) , p. 2245-2266  
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14.
10 p, 1.4 MB Mediterranean circulation perturbations over the last five centuries : relevance to past Eastern Mediterranean Transient-type events / Incarbona, Alessandro (Università degli Studi di Palermo. Dipartimento di Scienze della Terra e del Mare) ; Rodriguez Sanz, Laura (Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals) ; Martrat, Belen (Institut de Diagnòstic Ambiental i Estudis de l'Aigua) ; Mortyn, P. Graham (Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals) ; Sprovieri, Mario (Consiglio Nazionale delle Ricerche. Istituto per l'ambiente marino costiero) ; Ziveri, Patrizia (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia) ; Gogou, Alexandra (Institute of Oceanography. Hellenic Centre for Marine Research) ; Jordà, Gabriel (Institut Mediterrani d'Estudis Avançats) ; Xoplaki, Elena (Justus Liebig University Giessen. Department of Geography, Climatology, Climate Dynamics and Climate Change) ; Luterbacher, Juerg (Justus Liebig University Giessen. Department of Geography, Climatology, Climate Dynamics and Climate Change) ; Langone, Leonardo (Consiglio Nazionale delle Ricerche.Istituto di scienze marine) ; Marino, Gianluca (Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals) ; Triantaphyllou, Maria (University of Athens. Faculty of Geology and Geoenvironment) ; Di Stefano, Enrico (Università degli Studi di Palermo. Dipartimento di Scienze della Terra e del Mare) ; Grimalt, Joan (Institut de Diagnòstic Ambiental i Estudis de l'Aigua) ; Tranchida, Giorgio (Consiglio Nazionale delle Ricerche. Istituto per l'ambiente marino costiero) ; Sprovieri, Rodolfo (Università degli Studi di Palermo. Dipartimento di Scienze della Terra e del Mare) ; Mazzola, Salvatore (Consiglio Nazionale delle Ricerche. Istituto per l'ambiente marino costiero)
The Eastern Mediterranean Transient (EMT) occurred in the Aegean Sea from 1988 to 1995 and is the most significant intermediate-to-deep Mediterranean overturning perturbation reported by instrumental records. [...]
2016 - 10.1038/srep29623
Scientific reports, Vol. 6 (Jan. 2016) , p. 29623  
Detailed record - Creative Commons
15.
21 p, 758.5 KB Deep sea sedimentary analogs for the Vostok ice core / Mortyn, P. Graham (California State University. Department of Earth and Environmental Sciences) ; Charles, Christopher D. (Scripps Institution of Oceanography (La Jolla, Estats Units d'Amèrica)) ; Ninnemann, Ulysses S. (Scripps Institution of Oceanography (La Jolla, Estats Units d'Amèrica)) ; Ludwig, Kristen (Scripps Institution of Oceanography (La Jolla, Estats Units d'Amèrica)) ; Hodell, David A. (University of Florida. Department of Geological Sciences)
Many applications of the Vostok ice core depend critically on the ability to make stratigraphic ties to marine records in the adjacent Southern Ocean. Here we present oxygen isotopic records from high accumulation rate sites in the South Atlantic sector of the Southern Ocean, collected for the purpose of complementing the recently extended dD record from the Vostok ice core. [...]
2003 - 10.1029/2002GC000475
Geochemistry, geophysics, geosystems, Vol. 4, Num. 8 (August 2003) , p. 1-21  
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16.
27 p, 2.2 MB Interlaboratory comparison study of calibration standards for foraminiferal Mg/Ca thermometry / Greaves, Mervyn (University of Cambridge. Department of Earth Sciences) ; Caillon, Nicolas (Centre National de la Recherche Scientifique (França)) ; Rebaubier, Helene (Centre National de la Recherche Scientifique (França)) ; Bartoli, G. (Kiel University. Institute für Geowissenschaften) ; Bohaty, Steven (University of Southampton. School of Ocean and Earth Science) ; Cacho, Isabel (Universitat de Barcelona. Departament d'Estratigrafia, Paleontologia i Geociències Marines) ; Clarke, L. (Bangor University. School of Ocean Sciences) ; Cooper, M. (National Oceanography Centre) ; Daunt, C. (University of Cambridge. Department of Earth Sciences) ; Delaney, M. (University of California. Department of Ocean Sciences) ; de Menocal, P. (Columbia University. Lamont-Doherty Earth Observatory) ; Dutton, Andrea (Australian National University. Research School of Earth Sciences) ; Eggins, Stephen (Australian National University. Research School of Earth Sciences) ; Elderfield, Henry (University of Cambridge. Department of Earth Sciences) ; Garbe-Schoenberg, Dieter (Kiel University. Institute für Geowissenschaften) ; Goddard, Ethan (University of South Florida. College of Marine Science) ; Green, D. (National Oceanography Centre) ; Groeneveld, J. (University of Bremen. Research Center Ocean Margins) ; Hastings, D. (Eckerd College. Collegium of Natural Sciences) ; Hathorne, E. (University of Bremen. Research Center Ocean Margins) ; Kimoto, K. (Institute of Observational Research for Global Change) ; Klinkhammer, Gary (Oregon State University. College of Oceanography) ; Labeyrie, L. (Centre National de la Recherche Scientifique (França)) ; Lea, David W. (University of California. Department of Geological Sciences) ; Marchitto, Thomas (University of Colorado. INSTAAR) ; Martínez Botí, M. A. (Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals) ; Mortyn, P. Graham (Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals) ; Ni, Y. (Research Institute of Petroleum Exploration and Development) ; Nuernberg, D. (IFM-GEOMAR (Kiel, Alemanya)) ; Paradis, G. (University of California. Department of Geological Sciences) ; Pena, L. (Universitat de Barcelona. Departament d'Estratigrafia, Paleontologia i Geociències Marines) ; Quinn, T. (University of South Florida. College of Marine Science) ; Rosenthal, Y. (State University of New Jersey. Department of Geology) ; Russell, A. (University of California. Department of Geology) ; Sagawa, T. (Kochi University. Center for Advanced Marine Core Research) ; Sosdian, S. (State University of New Jersey. Department of Geology) ; Stott, Lowell D (University of South California. Department of Earth Sciences) ; Tachikawa, K. (Centre National de la Recherche Scientifique (França)) ; Tappa, E. (University of South Carolina. Department of Geological Sciences) ; Thunell, Robert C. (University of South Carolina. Department of Geological Sciences) ; Wilson, P. A. (National Oceanography Centre)
An interlaboratory study of Mg/Ca and Sr/Ca ratios in three commercially available carbonate reference materials (BAM RS3, CMSI 1767, and ECRM 752-1) was performed with the participation of 25 laboratories that determine foraminiferal Mg/Ca ratios worldwide. [...]
2008 - 10.1029/2008GC001974
Geochemistry, geophysics, geosystems, Vol. 9, issue 8 (Aug. 2008) , p. 1-27  
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17.
10 p, 1.6 MB Hydrographic changes in the tropical and extratropical Pacific during the last deglaciation / Rodriguez Sanz, Laura (Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals) ; Mortyn, P. Graham (Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals) ; Herguera, Juan Carlos (Centro de Investigación Científica y Educación Superior de Ensenada, Mexico) ; Zahn, Rainer (Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals)
Fine-scale, paired Mg/Ca-δ18O profiles (Globigerinoides ruber white, sensu lato) from the San Lázaro Basin (SLB) at 25°N in the Northeast Pacific reveal a transition from a predominant presence of tropical/subtropical waters during the last glacial termination (T1) to an increasing influence of fresh and cold California Current waters toward the Holocene. [...]
2013 - 10.1002/palo.20049
Paleoceanography, Vol. 28 No. 3 (September 2013) , p. 529-538  
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18.
5 p, 851.5 KB Instrumental validation of Globigerinoides ruber Mg/Ca as a proxy for NE Pacific summer SST / Mortyn, P. Graham (Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals) ; Herguera, Juan Carlos (Centro de Investigación Científica y Educación Superior de Ensenada. Departamento de Oceanografía) ; Martínez Botí, M. A. (Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals)
Accurate reconstruction of sea surface temperature (SST) is a high research priority, given that it is such a crucial variable in the Earth's climate system. The Mg/Ca composition of Globigerinoides ruber (white) has been calibrated and applied for a number of tropical and extratropical paleo-SST reconstructions, though validation studies of the proxy against instrumental observations are relatively scarce. [...]
2011 - 10.1029/2011GL047803
Geophysical research letters, Vol. 38 Issue 16 (August 2011)  
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19.
16 p, 707.5 KB Nd/Ca ratios in plankton-towed and core top foraminifera : confirmation of the water column adcquisition of Nd / Martínez Botí, M. A. (Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals) ; Vance, D. (University of Bristol. Department of Earth Sciences) ; Mortyn, P. Graham (Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals)
Planktic foraminifera have been used as recorders of the neodymium (Nd) isotopic composition of seawater, although there is still controversy over the precise provenance of the Nd signal. We present an extensive, multispecific plankton tow Nd/Ca data set from several geographic locations (SE Atlantic, NE Atlantic, Norwegian Sea, and western Mediterranean), together with core top samples from the Mediterranean region. [...]
2009 - 10.1029/2009GC002701
Geochemistry, geophysics, geosystems, Vol. 10, Issue 8 (August 2009)  
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20.
12 p, 5.0 MB An evaluation of controls on planktonic foraminiferal Sr/Ca : comparison of water column and core-top data from a North Atlantic transect / Mortyn, P. Graham (Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals) ; Elderfield, Henry (University of Cambridge. Department of Earth Sciences) ; Anand, Pallavi (Vrije Universiteit Amsterdam) ; Greaves, Mervyn (University of Cambridge. Department of Earth Sciences)
Sr/Ca in planktonic foraminifera recovered from the water column over 0-800 m along a meridional transect in the North Atlantic Ocean from 30° to 60°N were compared with data from core-top samples on the same transect and with in situ temperatures determined from water column CTD profiles. [...]
2005 - 10.1029/2005GC001047
Geochemistry, geophysics, geosystems, Vol. 6, Issue 12 (Dec. 2005)  
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21.
14 p, 1006.0 KB Field-based validation of a diagenetic effect on G. ruber Mg/Ca paleothermometry: Core top results from the Aegean Sea (eastern Mediterranean) / Kontakiotis, George (Panepistēmio Athēnōn. Department of Historical Geology and Paleontology) ; Mortyn, P. Graham (Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals) ; Antonarakou, Assimina (Panepistēmio Athēnōn. Department of Historical Geology and Paleontology) ; Martínez Botí, M. A. (Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals) ; Triantaphyllou, Maria V. (Panepistēmio Athēnōn. Department of Historical Geology and Paleontology)
Recent work across the Mediterranean Sea has illustrated the salinity and overgrowth effects on planktonic foraminiferal Mg/Ca, which potentially confound the use of this as a temperature proxy for paleoceanographic reconstructions. [...]
2011 - 10.1029/2011GC003692
Geochemistry, geophysics, geosystems, Vol. 12, Issue 9 (Sept. 2011) , p. 1-14  
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