RRS James Clark Ross Cruise JR298: Marine geology and geophysics. Antarctic Peninsula Pacific Margin and southern Bellingshausen Sea. January - March 2015

• Main Authors: Larter, R. D., Channell, J.E.T., Cook, C., Gowland, E.J., Graham, A.G.J., Gunn, K.J., Hernández-Molina, F. J., Hillenbrand, C.-D., Hogan, K.A., Horrocks, J., Jordan, T.A.R.M., Pérez, L., Pietsch, R., Piotrowski, A.M., Williams, T.J., Xuan, C., England, A., Morgan, P.E., Polfrey, S.D., Preston, M.O., Hancock, J.C., Miller, I., Paterson, S.G.
• Format: Other/Unknown Material
• Language: unknown
• Published: British Antarctic Survey 2016
• Subjects: Antarc*; Antarctic; Antarctic Peninsula; Antarctica; Bellingshausen Sea; Southern Ocean; West Antarctica
• Online Access: https://epic.awi.de/id/eprint/41877/; https://hdl.handle.net/10013/epic.48703

The main purpose of cruise JR298 was to collect marine geological and geophysical samples and data to support International Ocean Discovery Program (IODP) proposal 732- Full2, “Sediment drifts off the Antarctic Peninsula and West Antarctica” (Channell, Larter, Hillenbrand et al.). The ship time was allocated for this purpose on the basis of a Site Survey Investigation grant from the NERC UK-IODP Programme (NE/J006548/1: Depositional patterns and records in sediment drifts off the Antarctic Peninsula and West Antarctica) to R.D. Larter, C.-D. Hillenbrand (both BAS), D.A. Hodell (University of Cambridge) and A.G.C. Graham (University of Exeter). The data and samples collected will also be used in two Collaborative Gearing Scheme projects, an Antarctic Science Bursary project, a University of Cambridge PhD studentship, and within the National Capability remit of the BAS Science Teams in “Geology and Geophysics” and “Palaeoenvironments and Climate Change”. These projects are: • Tracing and reconstructing the neodymium and carbon isotopic composition of circum-Antarctic waters (CGS-100, PI: A.M. Piotrowski, Department of Earth Sciences, University of Cambridge; cruise participants: A.M. Piotrowski and T.J. Williams). • Structural characterisation of Late Quaternary sediments from West Antarctic contourite drifts using three dimensional X-ray imaging (CT-scanning) (CGS-98, PI: C. Ó Cofaigh, Department of Geography, Durham University; cruise participant: J. Horrocks) • Tracing the Quaternary evolution of the Antarctic Peninsula and West Antarctic Ice Sheets using lead isotopes in ice-rafted feldspar mineral grains (Antarctic Science Bursary awarded to C. Cook). • Seismic imaging of oceanographic structures and processes in the Southern Ocean south of the Polar Front (component of University of Cambridge/BP Institute PhD studentship; primary supervisor: N.J. White, Department of Earth Sciences, University of Cambridge; PhD student and cruise participant: K.L. Gunn). • Modelling crustal structure across the ...