University Metadata Form
DID: 004JC.010, Revision 0
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University Metadata Form |
Data Identification Number: 004JC.010
Title of Data: Chlorine-36 Bomb-Pulse Study of Chlorine-36/Chlorine and Chlorine-35/Chlorine-37 Isotope Ratios Measured in Leachates of Rock Collected From the Yucca Mountain Exploratory Studies Facility.
Description: Chlorine-36/chlorine and chlorine-35/chlorine-37 isotope ratios were measured in leachates from rock collected from the Exploratory Studies Facility, surface soils located above the north and south ramps of the tunnel, exploratory studies facility seep, and blanks associated with the UNLV chlorine-36, Bomb Pulse study. The measurments were taken by accelerator mass spectrometry at the Purdue Rare Isotope Measurement Laboratory (PRIME).
Data Type: Q - Developed QA Program: OCRWM QARD-based NSHE QA Program
Award/Contract #: DE-FC28-04RW12232
Source DID(s):
004JC.006
004JC.008
PI: Cizdziel, J. Data Submitter: Cizdziel, J.
Associated Report: TR-06-002
Notebook Number(s): UCCSN-UNLV-065-Vol.1, Vol. 2 (p. 22-53), and Vol. 4
Scientific Investigation Plan #: SIP-UNLV-026
Parameters:
Keywords:
These data supersede data identified by: 004JC.007
These data have been superseded by: N/A
Comments:
Sample ID 01034200(C4-L2)was changed to 01034205(C4-L2); sample ID 01034200(C4-S1) was changed to 01034205(C4-S1); and sample ID 01034200(C4-W1) was changed to 01034205(C4-W1).
Procedures used:
Software used: N/A
Acquisition/Development Method: The leaching and sample preparation methods for Cl-36 were fully documented in SN UCCSN-UNLV-065 Vol 1 and 4. They generally followed Los Alamos National Laboratory (LANL) procedure LANL-CST-DP-92-R2, LANL-CST-DP-95-R2 and LANL-CST-DP-97-R1, with minor notebook revisions. Analysis was conducted by Accelerator Mass Spectrometry (AMS) at PRIME.
Location(s): University of Nevada, Las Vegas
Start/End Period: 03/02/2005 - 03/31/2006
Other Management Information: These data were acquired or developed under project activity ORD-FY04-004 of the NSHE/YMP Cooperative Agreement # DE-FC28-04RW12232.
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| 004JC.006 |
Portion(s) of
the source dataset
used to develop the
data: Measured
Chlorine-36/Chlorine
ratios The measured ratios were background corrected for 36Cl determined in process blanks (3/31/06 AMS run). Chloride in the reagent blank and chloride added as carrier were subtracted from the total chloride determined in the final leachate (see below). The resultant value was used as the denominator in the 36Cl/Cl corrected ratio calculation. The numerator was determined by multiplying the measured ratio by the total chloride (mg) in the final leachate, and subtracting the amount of 36Cl stemming from reagents/process, which was in turn calculated by multiplying the measured ratio for the process blank by the amount of chloride (mg) added from the blank. If more than one process blank was used for a leaching run, mean blank results were employed in the calculation. Propagation of the 36Cl/Cl uncertainty followed standard error propagation techniques and included a 2% factor for sample preparation. The specific calculations were added as an electronic attachement to notebooks UCCSN- UNLV-065 Vols. 1 and 4. |
| 004JC.008 |
Portion(s) of
the source dataset
used to develop the
data: Chloride
concentrations. The measured ratios were background corrected for chloride in the leach water (3/31/06 AMS run) and added carrier. Chloride in the reagent blank and chloride added as carrier were subtracted from the total chloride determined in the final leachate. The resultant value was used as the denominator in the 36Cl/Cl corrected ratio calculation as described above. |
Metadata Form revision 0 reviewed and approved by Data Submitter on: 07/27/2006
Metadata Form Prepared: 07/26/2006 by Raymond E. Keeler
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