Zobrazeno 1 - 10
of 72
pro vyhledávání: '"J. J. Mazer"'
Publikováno v:
Geoarchaeology. 8:371-384
Users of the obsidian hydration dating method have routinely assumed that artifacts which originate from the same geological flow will be of the same chemical composition and thus hydrate at the same rate under equivalent conditions of temperature an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::252c7500968992e0ae7ad272a9c988cb
https://doi.org/10.1002/gea.3340080503
https://doi.org/10.1002/gea.3340080503
Publikováno v:
Nature. 357:573-576
RECENT use of tektites as evidence for a bolide impact at the Cretaceous/Tertiary (K/T) boundary has focused attention on their long-term stability1–5. It was proposed in these studies that residual clay features with the spherical tektite morpholo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b7185963dd9b34fff09cbb7a7fcae125
https://doi.org/10.1038/357573a0
https://doi.org/10.1038/357573a0
Publikováno v:
American Antiquity. 56:504-513
The experimental hydration of obsidian for up to 30 days is described at relative humidities (RH) of 60, 90, 95, and 100 percent and at temperatures of 150, 160, and 175°C. Under isothermal conditions, the rate of hydration increased by as much as 2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b49242ae3d8ccfd5a63ab3798b618683
https://doi.org/10.2307/280898
https://doi.org/10.2307/280898
Publikováno v:
Archaeological Obsidian Studies ISBN: 9781475792782
The development of laboratory hydration rates is considered to be the most promising approach for the chronometric dating of obsidian artifacts. The technical aspects of accelerated hydration, hydration rim measurement, and the determination of effec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5da5fb490bd24e5e658e9e0964bc6753
https://doi.org/10.1007/978-1-4757-9276-8_8
https://doi.org/10.1007/978-1-4757-9276-8_8
Autor:
J. W. Emery, M. Gong, X. Feng, N.L. Dietz, David J. Wronkiewicz, Edgar C. Buck, L. E. Morgan, H. Li, J. J. Mazer, J. K. Nielsen, J.C. Hoh, L. Newton, William L. Ebert, C. R. Bradley, Thomas J. Gerding, John K. Bates, William L. Bourcier, M. Tomozawa, B. L. Phillips, L. M. Wang, Rodney C. Ewing, J. C. Cunnane
A program was established for DOE Environmental Restoration and Waste Management (EM) to evaluate factors that are anticipated to affect waste glass reaction during repository disposal, especially in an unsaturated environment typical of what may be
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::129ce864521c4408ace4aeef013befed
https://doi.org/10.2172/139187
https://doi.org/10.2172/139187
Autor:
William L. Ebert, J. J. Mazer
Publikováno v:
MRS Proceedings. 333
A literature survey has been performed to assess the effects of the temperature, glass surface area/leachate volume ratio, leachant composition, leachant flow rate, and glass composition (actual radioactive vs. simulated glass) used in laboratory tes
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6c098e01447c5ce0d8c8fa4a582695e5
https://doi.org/10.1557/proc-333-27
https://doi.org/10.1557/proc-333-27
Autor:
J. J. Mazer
Publikováno v:
MRS Proceedings. 333
The common observation of glasses persisting in natural environments for long periods of time (up to tens of millions of years) provides compelling evidence that these materials can be kinetically stable in a variety of subsurface environments. This
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e138baf974d37c5cfa71ee0abefa184c
https://doi.org/10.1557/proc-333-159
https://doi.org/10.1557/proc-333-159
Autor:
J.C. Cunnane, C.R. Bradley, S. A. Steward, X. Feng, J. C. Hoh, N.L. Dietz, David J. Wronkiewicz, J. J. Mazer, J.K. Bates, William L. Bourcier, M. Gong, M. Tomozawa, Rodney C. Ewing, Edgar C. Buck, L. E. Morgan, W. T. Han, J. W. Emery, W. L. Ebert, L. M. Wang, Thomas J. Gerding, J. K. Nielsen
This report provides an overview of progress during FY 1991 for the Technical Support Program that is part of the ANL Technology Support Activity for DOE, Environmental Restoration and Waste Management (EM). The purpose is to evaluate, before hot sta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::070500ca5871777184cffd16de29ebda
https://doi.org/10.2172/138400
https://doi.org/10.2172/138400
Autor:
David J. Wronkiewicz, X. Feng, J. J. Mazer, Bernard P. McGrail, John K. Bates, William L. Ebert, James F. Sproull, William L. Bourcier, J. C. Cunnane
Publikováno v:
MRS Proceedings. 294
With the imminent startup, in the United States, of facilities for vitrification of high-level nuclear waste, a document has been prepared that compiles the scientific basis for understanding the alteration of the waste glass products under the range
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2fc147e3ecf3507f106e43f25174a6c5
https://doi.org/10.1557/proc-294-225
https://doi.org/10.1557/proc-294-225
Publikováno v:
MRS Proceedings. 257
Projected scenarios for the proposed Yucca Mountain repository include significant periods of time when high relative humidity atmospheres will be present, thus the reaction processes of interest will include those known to occur under these conditio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::40959d96304d7c2d09b82804f9702319
https://doi.org/10.1557/proc-257-513
https://doi.org/10.1557/proc-257-513