Biostratigraphy of large benthic foraminifera from Hole U1468A (Maldives): a CT-scan taxonomic approach |
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| Authors: | Giovanni Coletti Stephanie Stainbank Alessio Fabbrini Silvia Spezzaferri Anneleen Foubert Dick Kroon Christian Betzler |
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| Institution: | 1.Department of Geosciences,University of Fribourg,Fribourg,Switzerland;2.Department of Physical Sciences, Earth and Environment,University of Siena,Siena,Italy;3.School of GeoSciences,University of Edinburgh, Grant Institute,Edinburgh,UK;4.Institute of Geology, CEN,University of Hamburg,Hamburg,Germany |
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| Abstract: | Large benthic foraminifera are important components of tropical shallow water carbonates. Their structure, developed to host algal symbionts, can be extremely elaborate and presents stratigraphically-significant evolutionary patterns. Therefore their distribution is important in biostratigraphy, especially in the Indo-Pacific area. To provide a reliable age model for two intervals of IODP Hole U1468A from the Maldives Inner-Sea, large benthic foraminifera have been studied with computed tomography. This technique provided 3D models ideal for biometric-based identifications, allowing the upper interval to be placed in the late middle-Miocene and the lower interval in the late Oligocene. |
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