Speed of abstracting and country of origin of abstracts published in section 8 (mineralogical and geological chemistry) of "chemical abstracts"
No abstract available.
Journal of Chemical Documentation↗
Geology topics
M. Fleischer
Publications and source records attributed to M. Fleischer.
Determination of active oxygen in the presence of barium and lead
The method of Mrgudich and Clark is modified by substituting 5 per cent (by volume) perchloric acid for 50 per cent perchloric acid. Titration by potassium permanganate may be substituted for electrometric titration with ceric sulfate.
Industrial and Engineering Chemistry↗
The addition of iodine to tetramethylammonium iodide
The system tetramethylammonium iodide-iodine-toluene has been studied by the solubility method at 6 and at 25°. The compounds (CH 3 ) 4 NI 3 , (CH 3 ) 4 NI 5 and (CH 3 ) 4 NI 11 were found to be stable phases at both temperatures. In addition, the compound (CH 3 ) 4 NI 10 was found at 6° and the compound (CH 3 ) 4 NI 9 at 25°. The dissociation pressures of the compounds at these temperatures were calculated from the solubility data.
Journal of Physical Chemistry↗
The relationship of the rare-earth composition of minerals to geological environment
It has been known for a long time that the composition of the lanthanides in minerals is controlled to a large degree by crystallo-chemical factors, but is also greatly influenced by changes in geological environment. In general, igneous rocks rich in silica are favourable for the concentration of the heavy lanthanides and yttrium; those low in silica and high in carbonate are favourable for the concentration of the light lanthanides. These generalizations are illustrated by summaries of the available data on monazite, sphene, and apatite from different geological environments. Apatite of marine sedimentary origin (a large potential source of rare earths) shows marked depletion of cerium, as has been noted previously for sea water.
Geochimica et Cosmochimica Acta↗
Summary of new data on rock samples G-1 and w-1, 1962-1965
Analyses of samples G-1 and W-1 made since 1962 are collected and "best values" for many elements are suggested.
Geochimica et Cosmochimica Acta↗
Summary of new data on rock samples G-1 and W-1
Published and unpublished analyses for major and minor constituents that have become available since April, 1960, are collected for the granite G-1 and diabase W-1. “Best values” are suggested for some of the elements.
Geochimica et Cosmochimica Acta↗
The abundance and distribution of the chemical elements in the earth's crust
No abstract available.
Journal of Chemical Education↗
List of persons doing research of interest to geochemists and their current work
No abstract available.
Geochimica et Cosmochimica Acta↗