This data set contains the results of Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS) performed on an archive of the Siple Dome A ice core containing the rapid climate warming of Dansgaard-Oeschger Event 21.
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LA-ICP-MS Results: 3 Siple Dome A Glacial Age Archives, Version 1
Geographic Coverage
Spatial Coverage: |
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Spatial Resolution: | Not Specified |
Temporal Coverage: |
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Temporal Resolution: | Not specified |
Parameter(s): |
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Platform(s) | Laboratory |
Sensor(s): | LA-ICP-MS |
Data Format(s): |
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Version: | V1 |
Data Contributor(s): | Skylar Haines, Paul Mayewski, Andrei Kurbatov |
Metadata XML: | View Metadata Record |
Data Citation
As a condition of using these data, you must cite the use of this data set using the following citation. For more information, see our Use and Copyright Web page.
Haines, S., P. A. Mayewski, and A. V. Kurbatov. 2015. LA-ICP-MS Results: 3 Siple Dome A Glacial Age Archives, Version 1. [Indicate subset used]. Boulder, Colorado USA. NSIDC: National Snow and Ice Data Center. doi: http://dx.doi.org/10.7265/N5WS8R6H. [Date Accessed].Detailed Data Description
This data set contains the results of Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS) performed on an archive of the Siple Dome A ice core containing the rapid climate warming of Dansgaard-Oeschger Event 21. The data are total concentrations of sodium (Na), calcium (Ca), and iron (Fe), given in counts per second (cps) and parts per billion (ppb). See Figure 1 for an example of the annual layers of the three concentrations.

Data are in Microsoft Excel (.xlsx) format.
Data are available on the FTP site in the ftp://sidads.colorado.edu/pub/DATASETS/AGDC/nsidc0636_mayewski
directory. Within this directory, there is one file: SDMA_glacialLAICPMS_rawdata.xlsx
. The worksheet contains ten columns. See Table 1 for a description of the data in each column.
Data Field | Description |
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Time (sec) | Number of seconds from the start of the process when the sample was collected. The ICP-MS collects one sample every 0.25 seconds |
Columns 2-7 | There are two columns for each element: one with the number of counts per sdecond (cps) in each sample and one with the calulated laser ablation parts per billion (ppb) |
Depth (m) | Depth along the ice core where the sample was collected |
The data file is 13.2 MB.
The spatial coverage of the original Siple Dome A ice core: -81.66° N, -81.66°S, -148.82° E, -148.82° W. See Figure 2 for a map of Siple Dome.

Spatial Resolution
The spatial resolution is 121 µm.
Data were collected 1 April 2015 to 15 April 2015
Paleo Temporal Coverage: ~15.25 to ~21.5 ka BP
Software and Tools
The data can be accessed using Microsoft Excel.
Data Acquisition and Processing
The SDMA ice archive sections used in this study are ~ 3 x 3 cm rods. Prior to analysis, the surface of the ice is scraped. The sample is then transferred into the Sayre CellTM for analysis.
The instrument used is the W.M. Keck Laser Ice Core Facility's LA-ICP- MS system for the ultra-high resolution glaciochemical analyses. Components include a Thermo Element 2 ICP-MS coupled to a New Wave UP-213 laser system and the Sayre CellTM, a cryocell chamber designed to seal a 1 m ice core from the surrounding air, while maintaining a uniform temperature of ~15° C and a 121 µm sampling resolution. (Sneed et al.)
References and Related Publications
Contacts and Acknowledgments
Skylar Haines
University of Maine
Orono, ME 04469
Paul Mayewski
Climate Change Institute
University of Maine
Orono, ME 04469
Andrei Kurbatov
Climate Change Institute
University of Maine
Orono, ME 04469
This research was supported by NSF Division of Polar Programs (PLR) Grant Number 1042883.
Document Information
DOCUMENT CREATION DATE
15 October 2015
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