Nature Communications (Dec 2019)

Deglacial water-table decline in Southern California recorded by noble gas isotopes

  • Alan M. Seltzer,
  • Jessica Ng,
  • Wesley R. Danskin,
  • Justin T. Kulongoski,
  • Riley S. Gannon,
  • Martin Stute,
  • Jeffrey P. Severinghaus

DOI
https://doi.org/10.1038/s41467-019-13693-2
Journal volume & issue
Vol. 10, no. 1
pp. 1 – 6

Abstract

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In this study, a new analytical technique is employed to measure Kr and Xe isotopes in groundwater at high precision. These measurements indicate that gravitational signals of past water-table depth are preserved in ancient groundwater, representing a novel proxy for past terrestrial hydroclimate.