Procedures For Removing Surface Contaminants From Deep Ice Cores
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Author | : Stephen E. Ragone |
Publisher | : |
Total Pages | : 16 |
Release | : 1972 |
Genre | : Ice |
ISBN | : |
Download Procedures for Removing Surface Contaminants from Deep Ice Cores Book in PDF, Epub and Kindle
The surfaces of the deep ice cores from Greenland and Antarctica were contaminated during drilling at concentration levels several orders of magnitude greater than those found in the uncontaminated ice. Several procedures for removing these contaminants were studied. Ultrasonic vibration followed by self-cleaning in meltwater was found to be the most effective procedure for removal of surface contamination. (Author).
Author | : Stephen E. Ragone |
Publisher | : |
Total Pages | : 24 |
Release | : 1972 |
Genre | : Cations |
ISBN | : |
Download Cationic Analysis of the Camp Century, Greenland, Ice Core Book in PDF, Epub and Kindle
Over 100 samples taken at about 15-m intervals in the portion of the Camp Century ice core between 70- and 1360-m depths were analyzed for their Na(+), K(+), Ca(2+) and Mg(2+) contents by atomic absorption spectroscopy. Based on independent stable isotope analyses these maxima occurred over the last third of the Wisconsin glaciation.
Author | : |
Publisher | : |
Total Pages | : 164 |
Release | : 1980 |
Genre | : Ice coring rigs |
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Download Ice Cores Book in PDF, Epub and Kindle
Author | : United States. Superintendent of Documents |
Publisher | : |
Total Pages | : 1252 |
Release | : 1973 |
Genre | : Government publications |
ISBN | : |
Download Monthly Catalog, United States Public Documents Book in PDF, Epub and Kindle
February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index.
Author | : |
Publisher | : |
Total Pages | : 156 |
Release | : 1977 |
Genre | : Glaciology |
ISBN | : |
Download Glaciological Data Book in PDF, Epub and Kindle
"This report documents most of the ice cores so far collected on a world-wide basis, as well as providing information on literature sources and on the currents status of research activities which may affect the types of data that can be archived."--Foreword.
Author | : |
Publisher | : |
Total Pages | : 1060 |
Release | : 1972 |
Genre | : Research |
ISBN | : |
Download Government Reports Announcements Book in PDF, Epub and Kindle
Author | : United States. Congress. Senate. Committee on Energy and Natural Resources |
Publisher | : |
Total Pages | : 130 |
Release | : 1981 |
Genre | : Acid rain |
ISBN | : |
Download Effects of Acid Rain Book in PDF, Epub and Kindle
Author | : James H. Cragin |
Publisher | : |
Total Pages | : 30 |
Release | : 1975 |
Genre | : Air |
ISBN | : |
Download The Chemistry of 700 Years of Precipitation at Dye 3, Greenland Book in PDF, Epub and Kindle
Concentrations of sodium, potassium, magnesium, calcium, silicon, aluminum, lead and sulfate were measured in surface snow and in individual annual accumulation layers from a 373-m-deep ice core from Dye 3, Greenland (65 deg 12 min N, 43 deg 47 min W), covering the time period from 1232 to 1971 A.D. Average background (pre-1840) concentrations in micrograms/liter were determined. Observed concentrations of sodium, potassium, magnesium, calcium, silicon and aluminum can be adequately explained by relative abundances of these elements in seawater and terrestrial dust. Late 19th century annual ice layers contain twice as much sulfate as pre-1840 deposits, reflecting the increased use of fossil fuels in the Northern Hemisphere. Lead concentrations in post-1955 snow deposits are more than an order of magnitude greater than pre-1840 baseline concentrations and are attributed to smelting and the increased use of lead alkyls in gasoline.
Author | : United States. Congress. Senate. Committee on Energy and Natural Resources. Subcommittee on Energy Conservation and Supply |
Publisher | : |
Total Pages | : 1308 |
Release | : 1980 |
Genre | : Energy conservation |
ISBN | : |
Download Energy Management Partnership Act of 1979 Book in PDF, Epub and Kindle
Author | : |
Publisher | : |
Total Pages | : 956 |
Release | : 1972 |
Genre | : Water |
ISBN | : |
Download Selected Water Resources Abstracts Book in PDF, Epub and Kindle