Accession Number : AD0446191

Title :   STUDIES OF PARTICLES FOR EXTRATERRESTRIAL ORIGIN. 3. ANALYSES OF DUST PARTICLES FROM POLAR ICE DEPOSITS,

Corporate Author : SMITHSONIAN ASTROPHYSICAL OBSERVATORY CAMBRIDGE MA

Personal Author(s) : Hodge, Paul W. ; Wright, Frances W. ; Langway, ChesterC., Jr.

Report Date : 23 MAR 1964

Pagination or Media Count : 13

Abstract : A total of 166 dust particles collected principally from Greenland and antarctic ice has been subjected to chemical analysis by the electron beam microanalyzer technique. Several have Ni/Fe ratios indicative of a meteoritic origin. The remainder are probably also primarily cosmic in origin. The rate of deposit of opaque spherules is found to be nearly, but not exactly, the same at all geographical locations sampled. (Author)

Descriptors :   *ASTROPHYSICS, *POLAR REGIONS, *METEORITES, ICE, DUST, CHEMICAL ANALYSIS, ELECTRON BEAMS, GREENLAND, SOUTHERN HEMISPHERE, UNITED STATES, MAGNESIUM, ALUMINUM, SILICON, CALCIUM, TITANIUM, CHROMIUM, MANGANESE, IRON, COBALT, NICKEL.

Distribution Statement : APPROVED FOR PUBLIC RELEASE