ISSN:0096-2805    

DOI:10.1111/j.1945-5100.1949.tb00084.x

出版商:Blackwell Publishing Ltd    

年代:1949

数据来源: WILEY

摘要:

ABSTRACTTroilite, which has been contended recently to be exclusively meteoritic, has one well‐authenticated terrestrial occurrence. The identification of terrestrial clinoenstatite and clinohypersthene is subject to considerable doubt; it is therefore suggested that these minerals should be included in the list of exclusively meteoritic minerals. It is suggested further that taenite is properly excluded from this list. The revised list contains clinoenstatite (?), clinohypersthene (?), daubréelite, kosmochlor, merrillite (?), oldhamite, osbornite, phosphorus, schreibersite, and weinbergeri

ISSN:0096-2805    

DOI:10.1111/j.1945-5100.1949.tb00085.x

出版商:Blackwell Publishing Ltd    

年代:1949

数据来源: WILEY

摘要:

ABSTRACTTherecovery indexof a meteoritic shower is defined and its application is discussed.

ISSN:0096-2805    

DOI:10.1111/j.1945-5100.1949.tb00086.x

出版商:Blackwell Publishing Ltd    

年代:1949

数据来源: WILEY

ISSN:0096-2805    

DOI:10.1111/j.1945-5100.1949.tb00087.x

出版商:Blackwell Publishing Ltd    

年代:1949

数据来源: WILEY

ISSN:0096-2805    

DOI:10.1111/j.1945-5100.1949.tb00088.x

出版商:Blackwell Publishing Ltd    

年代:1949

数据来源: WILEY

ISSN:0096-2805    

DOI:10.1111/j.1945-5100.1949.tb00090.x

出版商:Blackwell Publishing Ltd    

年代:1949

数据来源: WILEY

摘要:

ABSTRACT AND INTRODUCTIONWe have completed the analysis of 45 iron meteorites (siderites) for gallium, palladium, gold, and nickel, utilizing the neutron activation method of analysis for the first three elements named.1,2Nickel was determined by the method employed by Henderson,3and good checks were obtained with his analyses. The iron meteorites studied cover the complete range of classes, hexahedrites, octahedrites, and ataxites. Our results will be published in detail at a later date. In the meantime, certain features of the distributions are of sufficient interest to warrant a preliminary report.

ISSN:0096-2805    

DOI:10.1111/j.1945-5100.1949.tb00091.x

出版商:Blackwell Publishing Ltd    

年代:1949

数据来源: WILEY

摘要:

ABSTRACTFrom time to time, minor observations have been made on meteorites. These included the following: A Holbrook, Arizona, aerolite contained 0.23% of water‐soluble salt, which included 0.02% of sulfate and a trace of calcium. The same stone had a variable moisture content, which depended upon the relative humidity of its surroundings. A Richardton, North Dakota, aerolite contained only 0.033% of moisture. A Xiquipilco, Mexico, siderite probably contained a trace of nitride. An analysis is given of the taenite in a Mount Elden, Arizona, siderite. Much of the graphite in this mass appeared to be cliftonite or otherwise crystallin

ISSN:0096-2805    

DOI:10.1111/j.1945-5100.1949.tb00092.x

出版商:Blackwell Publishing Ltd    

年代:1949

数据来源: WILEY

摘要:

ABSTRACTThe polar coördinate number (PCN) of a meteoritic fall is defined and compared with the previously introduced coördinate number, now called, for distinction, the equatorial coördinate number (ECN). Each variety of number has its own peculiar advantages, which are briefly discuss

ISSN:0096-2805    

DOI:10.1111/j.1945-5100.1949.tb00093.x

出版商:Blackwell Publishing Ltd    

年代:1949

数据来源: WILEY

摘要:

ABSTRACTIn general,fallenmeteorites are probably of planetary origin, whereasconsumedmeteorites, perhaps in most cases, if not in all, are of cometary origin. The latter variety of bodies are evidently of insufficient mass to escape total vaporization within the Earth's atmosphere. Since no comet—and probably no meteorite, either—has ever been showed to have been traveling on an unmistakably hyperbolic heliocentric orbit, if Earthly meteorites are of planetary and cometary origin, their elliptic heliocentric orbits and their origin within the Solar System are readily explai

ISSN:0096-2805    

DOI:10.1111/j.1945-5100.1949.tb00094.x

出版商:Blackwell Publishing Ltd    

年代:1949

数据来源: WILEY