georefid:2008-106457SEDIS Publication Catalogue

ana.macario@awi.de

http://sedis.iodp.org/pub-catalogue/informationpointOfContact2011-06-23T00:00:00Zhttp://sedis.iodp.org/pub-catalogue/index.php?id=2008-1064572007-01-01publicationgeorefid:2008-106457Sharma, V.University of Delhi, Department of Geology, Delhi, IndiaauthorDaneshian, J.Teachers Training University of Tehran, IranauthorDevi, BhagyapatiauthorGeological Society of India, Bangalore, IndiapublisherdocumentHardcopyJournal of the Geological Society of India70 (6)939-949Two radiolarian assemblages are distinguished in the Calocycletta (C.) costata Zone of Early to Middle Miocene from a stratigraphic section of Inglis Island, Andaman Sea. Fluctuations in percent abundance of cooler and warmer water taxa in the section indicate changing water mass conditions. Water mass fluctuations in the form of cooling and warming of surface water have also been identified in the same stratigraphic interval from various tropical Indian Ocean DSDP and ODP sites by other investigators using oxygen isotope data.completedStratigraphyInvertebrate paleontologyAndaman SeaassemblagesbiostratigraphybiozonesCalocyclettaCalocycletta costataCenozoicclimate changecoolingDeep Sea Drilling ProjectfluctuationsForaminiferageochemistryglobal changeglobal warminghabitatIndian OceanInglis FormationInglis IslandInvertebrataisotope ratiosisotopesmicrofossilsMiocenemorphologyNeogeneO-18/O-16Ocean Drilling ProgramoxygenpaleoclimatologypaleoenvironmentProtistaRadiolariashellsstable isotopesTertiaryEnglishgeoscientificInformation93.000093.100012.050012.1000