A sledge microtome for high resolution subsampling of freeze cores

作者：Macumber Andrew L^*; Patterson R Timothy; Neville Lisa A; Falck Hendrik

来源：Journal of Paleolimnology, 2011, 45(2): 307-310.

DOI：10.1007/s10933-010-9487-4

• Microtome
• Freeze core
• Water-sediment interface

We describe a sledge microtome designed for the high-resolution subsampling of freeze cores. This inexpensive freeze-core microtome is capable of producing precise subsamples at mm to sub-mm resolution without sediment loss and cross-contamination. Such a subsampling resolution permits recognition of sub-decadal to annual events even in systems with low sedimentation rates. The freeze-core microtome is particularly useful for obtaining high-resolution subsamples at the environmentally important sediment-water interface due to freeze corers being capable of capturing this boundary with minimal disturbance as compared to other coring methods.

• 出版日期2011-2