Chemical and Morphological Variance in Vitriclastic Shards from IODP Site U1437: Inferences about Source Regions and Eruptive Mechanisms

International Ocean Discovery Program (IODP) Expedition 350 recovered roughly 2000 meters of volcaniclastic material. This paper focuses on the first 100 meters of this core which was almost entirely composed of tuffaceous mud. Tiny (micron) vitriclastic shards within this mud were analyzed to determine their chemistry and their morphology to make inferences about their source environment and eruptive mechanisms