Petrophysical features of lava flows from Bezymyannyi volcano, Kamchatka

This paper presents results from a study of lava flows that were discharged by Bezymyannyi Volcano at different times, from old (about 3500 years ago) to recent ones (1985–1989). We provide detailed descriptions of the composition, structure, and petrophysical properties for the main types of constituent rocks, which are andesites and basaltic andesites. It was found that porosity is the leading factor that controls rock properties, while the effects of structural and mineralogical features are less prominent. We demonstrate the variation in the properties of rocks that compose the lava flows in relation to their ages: the older a rock is, the higher its density and strength and the lower its porosity is

The Petrophysical Properties and Strength of Extrusive Rocks Discharged by Bezymianny Volcano, Kamchatka

This is the first petrophysical study of extrusive rocks (dacites to andesites) discharged by Bezymianny Volcano. We provide a comparative description of properties for extrusive rocks in accordance with identified age groups. We show the dynamics in the variation of extrusive rock properties in relation to their ages, with the result that the older a rock the higher are its density, strength, and elastic parameters. Rocks petrophysical features are compared between extrusive domes and lava flows. We argue for petrophysical properties to be applicable for deriving more accurate results for the genesis of rocks having similar petrophysical properties, in particular, rocks of extrusive and effusive origin

Mechanical properties of rapidly quenched Fe-Si-B alloys

22.00; Translated from Russian (Izv. Vyssh. Uchebn. Zaved., Chern. Metall. 1987 (9) p. 95-99)SIGLEAvailable from British Library Document Supply Centre- DSC:9022.06(BISI-Trans--26450)T / BLDSC - British Library Document Supply CentreGBUnited Kingdo

Mechanical properties of rapidly quenched Fe-Si-B alloys

22.00; Translated from Russian (Izv. Vyssh. Uchebn. Zaved., Chern. Metall. 1987 (9) p. 95-99)SIGLEAvailable from British Library Document Supply Centre- DSC:9022.06(BISI-Trans--26450)T / BLDSC - British Library Document Supply CentreGBUnited Kingdo