Data from: Detection of tephra layers in Antarctic sediment cores with hyperspectral imaging

Ismael F. Aymerich, Marc Oliva, Santiago Giralt & Julio Martín-Herrero
Tephrochronology uses recognizable volcanic ash layers (from airborne pyroclastic deposits, or tephras) in geological strata to set unique time references for paleoenvironmental events across wide geographic areas. This involves the detection of tephra layers which sometimes are not evident to the naked eye, including the so-called cryptotephras. Tests that are expensive, time-consuming, and/or destructive are often required. Destructive testing for tephra layers of cores from difficult regions, such as Antarctica, which are useful sources of...
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