scholarly journals Hydrothermal alteration in research drill hole Y-3, Lower Geyser Basin, Yellowstone National Park, Wyoming

1985 ◽  
Author(s):  
Keith E. Bargar ◽  
Melvin H. Beeson
Keyword(s):  
Hydrothermal Alteration ◽  
Yellowstone National Park ◽  
National Park ◽  
Drill Hole

Multiscale Hyperspectral Imaging of Hydrothermal Alteration in Yellowstone National Park, USA

2021 ◽  
Author(s):  
Todd M. Hoefen ◽  
Raymond F. Kokaly ◽  
Keith E. Livo ◽  
John M. Meyer ◽  
JoAnn M. Holloway
Keyword(s):  
Hyperspectral Imaging ◽  
Hydrothermal Alteration ◽  
Yellowstone National Park ◽  
National Park

scholarly journals Behavior of Nuclear Waste Elements During Hydrothermal Alteration of Glassy Rhyolite in an Active Geothermal System: Yellowstone National Park, Wyoming

1984 ◽  
Vol 44 ◽  
Author(s):  
Neil C. Sturchio ◽  
Martin G. Seitz
Keyword(s):  
Hydrothermal Alteration ◽  
Nuclear Waste ◽  
Yellowstone National Park ◽  
National Park ◽  
Thermal Waters ◽  
Geothermal System ◽  
Altered Rock ◽  
Active Geothermal System

AbstractThe behavior of a group of nuclear waste elements (U, Th, Sr, Zr, Sb, Cs, Ba, and Sm.d)u ring hydrothermal alteration of glassy rhyolite is investigated through geochemaical analyses of whole rocks, glass and mineral separates, and thermal waters. Significant enrichments of U, Sr, Sb, Cs, and Ba are found in altered rock relative to unaltered rock. Excess Sr, Cs, and Ba are concentrated in zeolites in altered rock. Excess U is associated with titanomagnetite surfaces. Th, Zr, and Sm are relatively immobile during alteration, and are strongly concentrated in celadonite.

Selective concentration of cesium in analcime during hydrothermal alteration, Yellowstone National Park, Wyoming

1983 ◽  
Vol 47 (4) ◽  
pp. 795-804 ◽  
Author(s):  
Terry E.C Keith ◽  
J.M Thompson ◽  
Robert E Mays
Keyword(s):  
Hydrothermal Alteration ◽  
Yellowstone National Park ◽  
National Park

scholarly journals Distribution of buried hydrothermal alteration deduced from high-resolution magnetic surveys in Yellowstone National Park

2014 ◽  
Vol 119 (4) ◽  
pp. 2595-2630 ◽  
Author(s):  
Claire Bouligand ◽  
Jonathan M.G. Glen ◽  
Richard J. Blakely
Keyword(s):  
High Resolution ◽  
Hydrothermal Alteration ◽  
Yellowstone National Park ◽  
National Park

Ultrastructural Localization of Phycocyanin in the Acidophilic, Thermophilic Alga, Cyanidium Caldarium

1973 ◽  
Vol 31 ◽  
pp. 462-463
Author(s):  
M. R. Edwards ◽  
J. D. Mainwaring
Keyword(s):  
Yellowstone National Park ◽  
National Park ◽  
Ultrastructural Localization ◽  
Review Of Literature ◽  
Cyanidium Caldarium ◽  
Taxonomic Rank ◽  
Thin Sections ◽  
Standard Methods ◽  
Laboratory Cultures

Although the general ultrastructure of Cyanidium caldarium, an acidophilic, thermophilic alga of questionable taxonomic rank, has been extensively studied (see review of literature in reference 1), some peculiar ultrastructural features of the chloroplast of this alga have not been noted by other investigators.Cells were collected and prepared for thin sections at the Yellowstone National Park and were also grown in laboratory cultures (45-52°C; pH 2-5). Fixation (glutaraldehyde-osmium), dehydration (ethanol), and embedding (Epon 812) were accomplished by standard methods. Replicas of frozenfracture d- etched cells were obtained in a Balzers apparatus. In addition, cells were examined after disruption in a French Press.

2. Occupational Exposure to Snowmobile Emissions at Yellowstone National Park

2005 ◽  
Author(s):  
W. Campbell ◽  
D. Stephenson ◽  
R. Morris ◽  
T. Spear
Keyword(s):  
Occupational Exposure ◽  
Yellowstone National Park ◽  
National Park ◽  
Snowmobile Emissions
Sign in / Sign up

Export Citation Format

Share Document