Articles | Volume 30
Technical development
25 Feb 2022
Technical development |  | 25 Feb 2022

Comparison of sediment composition by smear slides to quantitative shipboard data: a case study on the utility of smear slide percent estimates, IODP Expedition 353, northern Indian Ocean

Stephen C. Phillips and Kate Littler


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Short summary
Smear slides are a method of estimating sediment composition that is widely used as part of scientific drilling expeditions. These estimates are frequently used to classify sediments but are often not used in further analysis. We show that smear slide estimates, even if not highly accurate, track well with downcore physical property and elemental analyses. This work gives confidence in smear slide estimates in characterizing trends and cycles in sediment composition.