Expedition 374 Methods

• Main Authors: McKay, Robert M., De Santis, Laura, Kulhanek, Denise K., Browne, Imogen M., Shevenell, Amelia E., Expedition 374 Scientists
• Format: Conference Object
• Language: unknown
• Published: Digital Commons @ University of South Florida 2019
• Subjects: International Ocean Discovery Program; IODP; JOIDES Resolution; Expedition 374; Site U1521; Site U1522; Site U1523; Site U1524; Site U1525; Ross Sea; West Antarctic; ice sheet history; sea ice; Miocene; Pliocene; Quaternary; Antarctic Bottom Water; Antarctic water masses; turbidites; contourites; glaciomarine sediments; subglacial sediments; ice-rafted debris; paleobathymetry; seismic stratigraphy; paleoclimate; paleoceanography; Life Sciences; Antarctic; The Antarctic; West Antarctic Ice Sheet; Antarc*; Ice Sheet; Sea ice
• Online Access: https://digitalcommons.usf.edu/msc_facpub/667; https://digitalcommons.usf.edu/cgi/viewcontent.cgi?article=1661&context=msc_facpub

This chapter documents the procedures and methods employed during drilling operations and in the shipboard laboratories on the R/V JOIDES Resolution during International Ocean Discovery Program (IODP) Expedition 374. This information applies only to the shipboard work described in the Expedition Reports section of the Expedition 374 Proceedings of the International Ocean Discovery Programvolume. Methods used by investigators for shore-based analyses of Expedition 374 data and samples will be described in separate individual publications. This introductory section provides an overview of drilling and coring operations, core handling, curatorial conventions, depth scale terminology, and the sequence of shipboard analyses. Subsequent sections of this chapter describe specific laboratory procedures and instruments in more detail. The nomenclature of many geographic features on the Antarctic continent is aligned to the geographic coordinate system (e.g., the East and West Antarctic Ice Sheets), in which 0° of longitude represents grid north on a universal polar stereographic projection. However, in the Ross Sea, true direction is generally opposite to the geographic coordinates: the eastern Ross Sea is the area located between 160°W and 180° longitude (see Figure F2 in the Expedition 374 summary chapter [McKay et al., 2019a]), and the western Ross Sea is the area between 160°E and 180° of longitude (see Figure F2 in the Expedition 374 summary [McKay et al., 2019a]). In this volume, descriptors of directional orientation (e.g., west versus east) are based on true directions within the Ross Sea and not the geographical coordinate system.