Zobrazeno 1 - 10
of 228
pro vyhledávání: '"Z. E. Peterman"'
Autor:
Eric A. Erslev, R. G. Worl, N. J. Page, M. W. Reynolds, Carol D. Frost, G. L. Snyder, Karl E. Karlstrom, Michael L. Zientek, John C. Reed, R. S. Houston, Bruce Bryant, Z. E. Peterman
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fee0a28580744a993c3fbee069063075
https://doi.org/10.1130/dnag-gna-c2.121
https://doi.org/10.1130/dnag-gna-c2.121
Autor:
J. A. Percival, Z. E. Peterman
Publikováno v:
Canadian Journal of Earth Sciences. 31:1172-1181
Rb–Sr isotopic ratios were measured on biotite and whole rocks from a suite of 21 granitoid rocks from the southern Kapuskasing uplift. Results of 18 of the whole-rock analyses fall on an isochron with an age of 2.677 ± 0.057 Ga and Sri = 0.70080.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d14eead0634cb323c71d2d52367beb9e
https://doi.org/10.1139/e94-103
https://doi.org/10.1139/e94-103
Publikováno v:
Professional Paper.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a508d21a887ff8540a1e73e38d40d651
https://doi.org/10.3133/pp1517
https://doi.org/10.3133/pp1517
Autor:
Z. E. Peterman
Publikováno v:
Mineralogical Magazine. :711-712
An international scientific consensus argues for the long-term isolation of nuclear waste in deep geologic repositories. Among the many geological criteria for selecting suitable sites, the hydrological setting is especially critical because release
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8baa06b4d0ff034be0245f675f2e9d77
https://doi.org/10.1180/minmag.1994.58a.2.108
https://doi.org/10.1180/minmag.1994.58a.2.108
Autor:
Z. E. Peterman
Publikováno v:
Economic Geology. 74:1544-1562
Archean rocks of the United States represent more than a billion years of earth history. Major episodes of igneous and metamorphic activity are recognized in the intervals of 3,700 to 3,500 m.y. 2,900 to 2,800 m.y., and 2,750 to 2,600 m.y. Additional
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::99b44e825f7a3bcc519316d2d353fe53
https://doi.org/10.2113/gsecongeo.74.6.1544
https://doi.org/10.2113/gsecongeo.74.6.1544
Publikováno v:
Economic Geology. 80:2128-2135
The Copley Greenstone, Balaklala Rhyolite, and Mule Mountain stock in the West Shasta Cu-Zn district, California, have Rb-Sr, Sm-Nd, U-Pb, and K-Ar systematics that indicate they are a cogenetic suite of ensimatic island-arc rocks about 400 m.y. Perv
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9d53c8163e2df6b635a828b4ddadb9ee
https://doi.org/10.2113/gsecongeo.80.8.2128
https://doi.org/10.2113/gsecongeo.80.8.2128
Autor:
Z. E. Peterman, Robert G. Coleman
Publikováno v:
Journal of Geophysical Research. 80:1099-1108
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4732138ac35b9bbc23c0d65e183b2a5f
https://doi.org/10.1029/jb080i008p01099
https://doi.org/10.1029/jb080i008p01099
Publikováno v:
Canadian Journal of Earth Sciences. 7:184-187
Concordant total rock 206Pb–238U, 207Pb–235U, 207Pb–206Pb, 208Pb–232Th and 87Sr–87Rb ages of 1805 ± 40, 1815 ± 55, 1820 ± 110, 1790 ± 60, and 1810 ± 50, in millions of years, respectively, were obtained on the reference sample of bioti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8cdd6ee7b3cc245e67f45e5507b40d91
https://doi.org/10.1139/e70-015
https://doi.org/10.1139/e70-015
Autor:
A. Turek, Z. E. Peterman
Publikováno v:
Canadian Journal of Earth Sciences. 5:1373-1380
A Rb–Sr geochronologic study of rocks of the Rice Lake – Beresford Lake area, southeastern Manitoba, shows that gold-quartz veins containing sericite and fuchsite were emplaced at 2720 ± 185 m.y. ago (λ87Rb = 1.39 × 10−11 yr−1). The minera
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5c6b75c35e5ee50d24dd6922233cc6a0
https://doi.org/10.1139/e68-135
https://doi.org/10.1139/e68-135
Publikováno v:
Canadian Journal of Earth Sciences. 8:371-377
A paper-tape digital recording system is described which has been used to determine the isotopic abundance ratios of strontium from geologic samples. The system costs less than $10 000 and has proved to be highly reliable during its three years of op
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::60515ddc719e1040d5b7f43d67ce4aa7
https://doi.org/10.1139/e71-037
https://doi.org/10.1139/e71-037