Sample descriptions, d-spacing and geochemistry at DSDP Holes 68-501 and 69-504B

Mössbauer analyses were conducted on a sample of saponite selected from DSDP Leg 69 basalt core. The sample was initially placed within a nitrogen-purged container on-board Glomar Challenger approximately three hours after recovery, where it remained until analysis. The Mössbauer data revealed an original, in situ Fe2O3/FeO ratio of 0.46, with both Fe**2+ and Fe**3+ in octahedral coordination. With controlled exposure to air under ambient laboratory storage conditions, the proportion of Fe**3+ increased from an original 30% to 51% over a period of about 11.5 months. The Fe**3+ thus produced remained in octahedral coordination, and no observable changes occurred in the physical appearance of the sample.

(Table 1) K-Ar age and inert-gas-isotopes at DSDP Holes 68-501, 69-504B and 69-505B

Conventional K-Ar ages have been determined and inert-gas abundances have been measured on representative samples of altered rocks from Deep Sea Drilling Project Holes 501, 504B, and 505B in an attempt to correlate their degree of alteration with inert-gas and K-Ar data. Samples taken from the first 60 meters below the sediment/basalt interface give significantly higher ages than would be expected from the magnetic stratigraphy, though at greater depths the calculated ages are in broad agreement with the expected age. The inert gas ratios 20Ne/36Ar, 36Ar/84Kr, and 84Kr/130Xe also show a marked discontinuity at the 60-meter depth, and all these effects are interpreted as being a consequence of low-temperature alteration produced by burial metamorphism and by interaction with sea water (halmyrolysis).

Regulations 49 (revised) relating to the collection of tax on transportation and other facilities : title V, sections 500, 501, and 502 of the Revenue act of 1918 /

Includes index.

Supplement to special analysis D : a report required by the Federal Capital Investment Program Information Act of 1984 (Title II of Public Law 98-501).

"February 11, 1985."

Segunda parte de la Historia ecclesiastica de España : contiene dos centurias : dende [sic] el año de 501 hasta el de 700... /

Ochenta y siete chronologias de todos los Papas, Emperadores, Reyes y Obispos que se sabe auer auido en España y Concilios que se an celebrado en ella ... hasta el año setecientos del nacimiento de Christo, 64 p. pag.

1981-82 miscellaneous tax bills III : hearing before the Subcommittee on Taxation and Debt Management of the Committee on Finance, United States Senate, Ninety-seventh Congress, first session, on S. 388, S. 446, S. 464, S. 476, S. 499, S. 500, S. 501, March 30, 1981

Item 1038-A, 1038-B (microfiche)