Ice Core Chronologies from the Antarctic Peninsula: The Palmer, Jurassic, and Rendezvous Age-Scales

Emanuelsson, B. Daniel; Thomas, Elizabeth R.; Tetzner, Dieter R.; Humby, Jack D.; Vladimirova, Diana O.

doi:10.3390/geosciences12020087

Open AccessEditor’s ChoiceArticle

Ice Core Chronologies from the Antarctic Peninsula: The Palmer, Jurassic, and Rendezvous Age-Scales

by

B. Daniel Emanuelsson

^1,*

,

Elizabeth R. Thomas

¹

,

Dieter R. Tetzner

^1,2

,

Jack D. Humby

¹ and

Diana O. Vladimirova

¹

Ice Dynamics and Paleoclimate Group, British Antarctic Survey, Natural Environment Research Council, High Cross, Madingley Road, Cambridge CB3 0ET, UK

²

Department of Earth Sciences, University of Cambridge, Downing Street, Cambridge CB2 3EQ, UK

^*

Author to whom correspondence should be addressed.

Geosciences 2022, 12(2), 87; https://doi.org/10.3390/geosciences12020087

Submission received: 16 October 2021 / Revised: 22 December 2021 / Accepted: 30 January 2022 / Published: 16 February 2022

(This article belongs to the Special Issue Climate Variability in Antarctica and the Southern Hemisphere over the Last Millennia Volume 2)

Download

Browse Figures

Review Reports Versions Notes

Abstract

In this study, we present the age scales for three Antarctic Peninsula (AP) ice cores: Palmer, Rendezvous, and Jurassic. The three cores are all intermediate-depth cores, in the 133–141 m depth range. Non-sea-salt sulfate ([nssSO₄²⁻]) and hydrogen peroxide (H₂O₂) display marked seasonal variability suitable for annual-layer counting. The Palmer ice core covers 390 years, 1621–2011 C.E., and is one of the oldest AP cores. Rendezvous and Jurassic are lower elevation high-snow accumulation sites and therefore cover shorter intervals, 1843–2011 C.E. and 1874–2011 C.E., respectively. The age scales show good agreement with known volcanic age horizons. The three chronologies’ start and end dates of volcanic events are compared to the volcanic events in the published WAIS Divide core. The age difference for the Palmer age scale is ±6 months, Rendezvous ±9 months, and Jurassic ±7 months. Our results demonstrate the advantage of dating several cores from the same region at the same time. Additional confidence can be gained in the age scales by evaluating and finding synchronicity of [nssSO₄²⁻] peaks amongst the sites.

Keywords: Antarctic Peninsula chronology; ice cores; volcanism; age-scales; annual-layer counting; water stable isotopes

Share and Cite

MDPI and ACS Style

Emanuelsson, B.D.; Thomas, E.R.; Tetzner, D.R.; Humby, J.D.; Vladimirova, D.O. Ice Core Chronologies from the Antarctic Peninsula: The Palmer, Jurassic, and Rendezvous Age-Scales. Geosciences 2022, 12, 87. https://doi.org/10.3390/geosciences12020087

AMA Style

Emanuelsson BD, Thomas ER, Tetzner DR, Humby JD, Vladimirova DO. Ice Core Chronologies from the Antarctic Peninsula: The Palmer, Jurassic, and Rendezvous Age-Scales. Geosciences. 2022; 12(2):87. https://doi.org/10.3390/geosciences12020087

Chicago/Turabian Style

Emanuelsson, B. Daniel, Elizabeth R. Thomas, Dieter R. Tetzner, Jack D. Humby, and Diana O. Vladimirova. 2022. "Ice Core Chronologies from the Antarctic Peninsula: The Palmer, Jurassic, and Rendezvous Age-Scales" Geosciences 12, no. 2: 87. https://doi.org/10.3390/geosciences12020087

APA Style

Emanuelsson, B. D., Thomas, E. R., Tetzner, D. R., Humby, J. D., & Vladimirova, D. O. (2022). Ice Core Chronologies from the Antarctic Peninsula: The Palmer, Jurassic, and Rendezvous Age-Scales. Geosciences, 12(2), 87. https://doi.org/10.3390/geosciences12020087

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

Article Menu

Ice Core Chronologies from the Antarctic Peninsula: The Palmer, Jurassic, and Rendezvous Age-Scales

Abstract

Share and Cite

Article Metrics

Article Access Statistics

Further Information

Guidelines

MDPI Initiatives

Follow MDPI