Zobrazeno 1 - 10
of 12
pro vyhledávání: '"S. B. Romberger"'
Autor:
S.E Phillipson, S. B. Romberger
Publikováno v:
Journal of South American Earth Sciences. 16:667-683
The Late Miocene San Cristobal Ag–Zn–Pb deposit represents syngenetic and epigenetic mineralization with low- and high-sulfidation characteristics. Rocks in the deposit are characterized by barren dacitic ring fracture domes, mineralized resurgen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1aae7cff1c3256de01626a7632f8c4d0
https://doi.org/10.1016/j.jsames.2003.11.002
https://doi.org/10.1016/j.jsames.2003.11.002
Autor:
S. B. Romberger, D. R. N. Rosa
Publikováno v:
International Geology Review. 45:646-658
The Jales gold district is located in Vila Pouca de Aguiar County, northern Portugal, approximately 100 km ENE of the city of Porto. The district encompasses three areas with epigenetic mineralization of Variscan age. Mineralization is hosted in syn-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e9b4ec42aa65094946b94267708b60ea
https://doi.org/10.2747/0020-6814.45.7.646
https://doi.org/10.2747/0020-6814.45.7.646
Autor:
Karen D. Kelley, Lawrence W. Snee, S. B. Romberger, Holly J. Stein, Jeffrey A. Pontius, Tommy B. Thompson, David W. Beaty
Publikováno v:
Economic Geology. 93:981-1012
The Cripple Creek district (653 metric tons (t) of Au) consists of Au-Te veins and disseminated gold deposits that are spatially related to alkaline igneous rocks in an Oligocene intrusive complex. Vein paragenesis includes quartz-biotite-K feldspar-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b356edcda81b6528be5068b22c93d299
https://doi.org/10.2113/gsecongeo.93.7.981
https://doi.org/10.2113/gsecongeo.93.7.981
Autor:
S. B. Romberger, Charles G. Cunningham, J. D. Rasmussen, Peter D. Rowley, R. O. Rye, T. A. Steven, Jane Selverstone
Publikováno v:
Mineralium Deposita. 33:477-494
Uranium deposits containing molybdenum and fluorite occur in the Central Mining Area, near Marysvale, Utah, and formed in an epithermal vein system that is part of a volcanic/hypabyssal complex. They represent a known, but uncommon, type of deposit;
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0716aae339daec967afa2afd6d07bf95
https://doi.org/10.1007/s001260050164
https://doi.org/10.1007/s001260050164
Publikováno v:
Economic Geology. 91:1383-1393
The Genesis and Blue Star sedimentary rock-hosted gold deposits occur within the 40-mile-long Carlin trend and are located in Eureka County, Nevada. The deposits are hosted within the Devonian calcareous Popovieh Formation, the siliciclastic Rodeo Cr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::13b9e225fa5998d69f8338f7a4bab647
https://doi.org/10.2113/gsecongeo.91.8.1383
https://doi.org/10.2113/gsecongeo.91.8.1383
Autor:
J. D. Rasmussen, S. B. Romberger, Jane Selverstone, R. O. Rye, Peter D. Rowley, Charles G. Cunningham, T. A. Steven
Publikováno v:
Mineralium Deposita. 34:725-726
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f1aa2833f230375318ef1519bb935928
https://doi.org/10.1007/s001260050232
https://doi.org/10.1007/s001260050232
Publikováno v:
Economic Geology. 62:957-982
The solubility of cinnabar (red HgS) has been measured in aqueous sulfide solutions under varying conditions: up to 2.5 molal HS (super -) , pH 3.5 to 7.8; 25 to 200 degrees C; and 4 to 140 atm. total pressure. Concentrations were determined by using
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cbd84fdb65ab8a9483c05751926cd09a
https://doi.org/10.2113/gsecongeo.62.7.957
https://doi.org/10.2113/gsecongeo.62.7.957
Autor:
S. B. Romberger, H. L. Barnes
Publikováno v:
Economic Geology. 65:901-919
The solubility of covellite (CuS) was measured in aqueous sulfide solutions under varying conditions: up to 4.95 molal HS (super -) ; pH 3.5 to 13.5; 20 degrees to 200 degrees C; and 2 to 83 atm total pressure. The solubility of covellite is a functi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c228710aa6d76dc1141102ec49eb15ac
https://doi.org/10.2113/gsecongeo.65.8.901
https://doi.org/10.2113/gsecongeo.65.8.901
Autor:
S. B. Romberger
Publikováno v:
Uranium geochemistry, mineralogy, geology, exploration and resources ISBN: 9789400960626
Many geologists accept that certain uranium deposits may have formed at elevated temperatures in the presence of aqueous fluids. Such deposits may range in nature from typical veins and fracture fillings to deposits in metamorphic terrains that exhib
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3837c41da1ac0e2e6c28ec08881c59e6
https://doi.org/10.1007/978-94-009-6060-2_3
https://doi.org/10.1007/978-94-009-6060-2_3
