Chemical composition of smectite-bearing basal metalliferous sediments from DSDP Leg 9

The mineralogy and P, Fe and Mn contents of basal metalliferous and nonmetalliferous sediments of two Deep Sea Drilling Project cores (Sites 77 and 80) were investigated. When compared with superjacent nonmetalliferous material, basal metalliferous sediments are significantly enriched in P, Fe and Mn. Among the phases present in the metalliferous sediment samples are a poorly-crystalline Fe-rich smectite and X-ray amorphous Fe oxyhydroxides. P is associated primarily with the oxyhydroxides. Adsorption of phosphate on smectite does not seem to play any role in the uptake of P by metalliferous sediments. An estimate of the removal of P by on- and off-ridge metallogenic deposition suggests that this process strongly affects the overall geochemical balance of phosphorus in the World Ocean.

The musical scale of the Arabs. Medieval organ pipes and their bearing on the history of the scale. The natural diatonic scale.

From the Proceedings of the American Association for the Advancement of Science, v. 48, 1899.

Educating physicians in the nineteenth century : selected titles bearing on the subject in the collections of the National Library of Medicine /

Includes index.

The Australian Direct Steam Navigation Company : via Panama : incorporated by royal charter bearing date 24th June, 1853.

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The fruit of the Spirit. Being ten addresses bearing on the spiritual life.

Mode of access: Internet.

A fauna of the Vigo group: its bearing on the evolution of marine molluscan faunas.

Extracted from the Philippine Journal of Science, v.18, no.1.

Fundamental factors in treatment of iron bearing waters /

"Progress report for the period February 1, 1959 to December 15, 1960 for the National Institutes of Health U. S. Public Health Service Research Project RG-6436."

An investigation of the mineralogy of uranium-bearing deposits in the Boulder Batholith, Montana : annual report, July 1, 1952 to March 31, 1953 /

"Contract No. AT(30-1)-1390."

[Documents bearing on the suit brought by the Commonwealth of Massachusetts in the Supreme Court of the U.S. to test the constitutionality of the Sheppard-Towner Act involving the principle of federal aid legislation.]

Mode of access: Internet.

Bearing capacity of soils.

Cover title.

A glossary of uranium- and thorium-bearing minerals /

Mode of access: Internet.