Isotope and chemical compositions of meteoric and thermal waters and snow from the greater Yellowstone National Park region

2002 ◽  
Author(s):  
Yousif K. Kharaka ◽  
James J. Thordsen ◽  
Lloyd D. White
Author(s):  
William Romme ◽  
James Walsh

Whitebark pine (Pinus albicaulis) is a keystone species of upper subalpine ecosystems (Tomback et al. 2001), and is especially important in the high-elevation ecosystems of the northern Rocky Mountains (Arno and Hoff 1989). Its seeds are an essential food source for the endangered grizzly bear (Ursus arctos horribilis), particularly in the autumn, prior to winter denning (Mattson and Jonkel 1990, Mattson and Reinhart 1990, Mattson et al. 1992). In the Greater Yellowstone Ecosystem (GYE), biologists have concluded that the fate of grizzlies is intrinsically linked to the health of the whitebark pine communities found in and around Yellowstone National Park (YNP) (Mattson and Merrill 2002). Over the past century, however, whitebark pine has severely declined throughout much of its range as a result of an introduced fungus, white pine blister rust (Cronartium ribicola) (Hoff and Hagle 1990, Smith and Hoffman 2000, McDonald and Hoff 2001), native pine beetle (Dendroctonus ponderosae) infestations (Bartos and Gibson 1990, Kendall and Keane 2001), and, perhaps in some locations, successional replacement related to fire exclusion and fire suppression (Amo 2001). The most common historical whitebark pine ftre regimes are "stand-replacement", and "mixed­ severity" regimes (Morgan et al. 1994, Arno 2000, Arno and Allison-Bunnell2002). In the GYE, mixed-severity ftre regimes have been documented in whitebark pine forests in the Shoshone National forest NW of Cody, WY (Morgan and Bunting 1990), and in NE Yellowstone National Park (Barrett 1994). In Western Montana and Idaho, mixed fire regimes have been documented in whitebark pine communities in the Bob Marshall Wilderness (Keane et al. 1994), Selway-Bitterroot Wilderness (Brown et al. 1994), and the West Bighole Range (Murray et al.1998). Mattson and Reinhart (1990) found a stand­replacing fire regime on the Mount Washburn Massif, within Yellowstone National Park.


2011 ◽  
Vol 75 (16) ◽  
pp. 4476-4489 ◽  
Author(s):  
Yamin Deng ◽  
D. Kirk Nordstrom ◽  
R. Blaine McCleskey

2011 ◽  
Vol 75 (16) ◽  
pp. 4611-4636 ◽  
Author(s):  
JoAnn M. Holloway ◽  
D. Kirk Nordstrom ◽  
J.K. Böhlke ◽  
R. Blaine McCleskey ◽  
James W. Ball

Author(s):  
Joe Ammirati ◽  
M. Seidl ◽  
P. Matheny ◽  
Meinhard Moser ◽  
Bradley Kropp

Mushroom collecting in the Greater Yellowstone Area was relatively poor during the summer of 1999 due to a cool early season followed by dry weather during the summer. It was perhaps the poorest year of a long term study of Cortinarius, which Meinhard Moser and the late Vera and Kent McKnight began in earnest in the early 1980s; later joined by Joe Ammirati. None-the-less during the season Meinhard Moser was able to paint more than forty-five species for the monograph we are preparing on the Cortinarii of this region. At the end of the season, in late August, some good collections of Cortinarii were made at Sandpoint on Yellowstone Lake, and Lilypad Lake in Yellowstone National Park.


1984 ◽  
Vol 44 ◽  
Author(s):  
Neil C. Sturchio ◽  
Martin G. Seitz

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.


2021 ◽  
pp. 1-17
Author(s):  
Christopher M. Schiller ◽  
Cathy Whitlock ◽  
Sabrina R. Brown

Abstract Changes in climate and fire regime have long been recognized as drivers of the postglacial vegetation history of Yellowstone National Park, but the effects of locally dramatic hydrothermal activity are poorly known. Multi-proxy records from Goose Lake have been used to describe the history of Lower Geyser Basin where modern hydrothermal activity is widespread. From 10,300 cal yr BP to 3800 cal yr BP, thermal waters discharged into the lake, as evidenced by the deposition of arsenic-rich sediment, fluorite mud, and relatively high δ13Csediment values. Partially thermal conditions affected the limnobiotic composition, but prevailing climate, fire regime, and rhyolitic substrate maintained Pinus contorta forest in the basin, as found throughout the region. At 3800 cal yr BP, thermal water discharge into Goose Lake ceased, as evidenced by a shift in sediment geochemistry and limnobiota. Pollen and charcoal data indicate concurrent grassland development with limited fuel biomass and less fire activity, despite late Holocene climate conditions that were conducive to expanded forest cover. The shift in hydrothermal activity at Goose Lake and establishment of the treeless geyser basin may have been the result of a tectonic event or change in hydroclimate. This record illustrates the complex interactions of geology and climate that govern the development of an active hydrothermal geo-ecosystem.


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