993 resultados para Yellowstone Park


Relevância:

100.00% 100.00%

Publicador:

Resumo:

An account of an actual trip narrated in the form of imaginary letters.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

Mode of access: Internet.

Relevância:

70.00% 70.00%

Publicador:

Resumo:

"List of Yellowstone park animals": p. 143-151.

Relevância:

60.00% 60.00%

Publicador:

Relevância:

60.00% 60.00%

Publicador:

Resumo:

In this issue...Yellowstone, Butte, Montana, Shamrock Picnic grounds, Carroll College, Butte Copper Baseball League, Civic Center, Dean McAuliffe

Relevância:

60.00% 60.00%

Publicador:

Resumo:

In this issue...Paul Harvey, Student Wives Club, Magma, Anaconda, Dick Crnich, John Birch Society, Coed Club, Yellowstone Park, Montana Power, Ed Speelman

Relevância:

60.00% 60.00%

Publicador:

Resumo:

The Livingston formation is a thick succession of late Cretaceous lava flows, tuffs, and bedded water-laid volcanic detritus 200 miles long and 100 miles wide lying along the eastern margin of the Rocky Mountains in western Montana from Augusta to Yellowstone Park. It differs markedly within short distances in lithologic character and sequences, and the total thickness may exceed one mile in some places.

Relevância:

60.00% 60.00%

Publicador:

Resumo:

In this issue...Homecoming, Intramural Football, Cheerleaders, Poetry, Yellowstone Park, Snowflake-Springs, Karst Ranch, Butte Symphony, Surveying

Relevância:

40.00% 40.00%

Publicador:

Resumo:

Research has provided no definitive answers on whether PET plastic bottles or aluminum cans are a more environmentally sustainable choice as soda containers. This paper researches the fuel used in recycling each of these materials from Yellowstone National Park to processing locations. The data is used to determine which of these alternatives use less fuel in this process. It was found that plastics use more fuel when transported from Yellowstone National Park to the processing center. Aluminum uses less fuel per ton to transport from Yellowstone to the processing center. The conclusions from this research may have implications on which material would be advised to use in selling soda in Yellowstone National Park.

Relevância:

40.00% 40.00%

Publicador:

Resumo:

The changes in diatom species composition in a sediment core from Crevice Lake, Yellowstone National Park, spanning the past 2550 yr, were used to reconstruct long-term limnological and ecological conditions that may be related to late Holocene climate variability. Planktic forms dominate the fossil diatom assemblages throughout this record, but changes in species dominance indicate varying nutrient levels over time, particularly phosphorus. The changes in the nutrient concentrations in the lake were probably driven by changes in temperature and wind strength that affected the duration of watercolumn mixing and thus the extent of nutrient recycling from deep waters. Prior to 2100 cal before present (BP), Stephanodiscus minutulus and Synedra tenera dominated, suggesting long cool springs with extensive regeneration of phosphorus from the hypolimnion that resulted from isothermal mixing. From 2100 to 800 cal BP, these species were replaced by Cyclotella michiganiana and Cyclotella bodanica. These species are characteristic of lower nutrient concentrations and are interpreted here to reflect warm summers with long periods of thermal stratification. From 800 to 50 cal BP, S. minutulus dominated the diatom assemblage, suggesting a return to lengthy mixing during spring. The most dramatic late Holocene changes in the fossil diatom assemblages occurred during the transition from the Medieval Period to the Little Ice Age, approximately 800 cal BP.

Relevância:

40.00% 40.00%

Publicador:

Resumo:

Three maps on 3 folded leaves in pocket.

Relevância:

40.00% 40.00%

Publicador:

Resumo:

Four blank pages at end of volume for "Notes of our trip through the Yellowstone national park."