Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Vincent Ellis McKelvey"'
Autor:
Vincent Ellis McKelvey
Publikováno v:
Boletín Geológico, Vol 15, Iss 1-3 (1967)
1. Hace dos décadas, el fósforo fue llamado el "cuello de botella" para el alivio del hambre en el mundo. Se creía que, en América del Sur, Asia y otras extensas áreas de la tierra no había fuentes locales ele este abono vital. Ahora el panor
Externí odkaz:
https://doaj.org/article/95bbcc5497b441059f01de6ce7fda845
Publikováno v:
American Journal of Science. 240:529-546
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::56e9a027697a25fed43265b55a0f6950
https://doi.org/10.2475/ajs.240.8.529
https://doi.org/10.2475/ajs.240.8.529
Publikováno v:
Economic Geology. 45:35-53
Many marine sedimentary black shale and phosphorite formations contain 0.01 to 0.02 percent uranium, and one, the alum shale of Sweden, contains as much as 0.5 percent. The published fact that uranium is already being recovered on a laboratory scale
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fc4daeaaff8aad170247bfcb217e525b
https://doi.org/10.2113/gsecongeo.45.1.35
https://doi.org/10.2113/gsecongeo.45.1.35
Publikováno v:
Economic Geology. 43:518-524
Black-sand beach concentrates are more widely distributed along the beaches of North Carolina, South Carolina, and Georgia than has been recorded heretofore, as shown by a map prepared by airplane reconnaissance. The map shows also that the black san
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b50a3c7b461dfc7eb0174326449bd4b3
https://doi.org/10.2113/gsecongeo.43.6.518
https://doi.org/10.2113/gsecongeo.43.6.518
Publikováno v:
Economic Geology. 45:470-479
Fluids and sedimentary rocks accounted for 48 and 36 percent, respectively, of the total value of the 1946 domestic mineral production. The epigenetic (vein and replacement) and metamorphic deposits each contributed 6 percent of the total, and residu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4c984576ffc8bc8914acacb1ab7c9c27
https://doi.org/10.2113/gsecongeo.45.5.470
https://doi.org/10.2113/gsecongeo.45.5.470
Publikováno v:
Circular.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2d517f067ac73a0d0b28226bdb721fc4
https://doi.org/10.3133/cir886
https://doi.org/10.3133/cir886
Publikováno v:
Open-File Report.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b0f5c09d0758b68c9c25760003c48cb3
https://doi.org/10.3133/ofr80373
https://doi.org/10.3133/ofr80373
Publikováno v:
Marine Geology and Oceanography of the Pacific Manganese Nodule Province ISBN: 9781468435207
Recent publication of maps at scale 1:1,000,000 of the northeastern equatorial Pacific region showing publicly available information on the nickel plus copper content of manganese nodules has made it possible to outline the prime area between the Cla
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aa45cbea793ce1c9126106cc94f7862f
https://doi.org/10.1007/978-1-4684-3518-4_23
https://doi.org/10.1007/978-1-4684-3518-4_23
Autor:
Vincent Ellis McKelvey
Publikováno v:
Open-File Report.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::42b3bbcc0f350514de6aed9293e5eec6
https://doi.org/10.3133/ofr791569
https://doi.org/10.3133/ofr791569