Changes in permeability and fluid chemistry of the Topopah Spring Member of the Paintbrush tuff (Nevada Test Site) when held in a temperature gradient: summary of results
The permeability and groundwater chemistry results for the Topopah Spring Member are reported and compared with the results from the previous work on Bullfrog. Permeability measurements made on samples of the Topopah Spring Member of the Paintbrush Tuff at room-temperature and in a temperature gradient show that the initially high (3-65 {mu}da) permeabilities are little affected by heating to at least 150{sup 0}C. These permeability relationships are favvorable for the disposal of nuclear waste in this stuff in an unsaturated zone at the Nevada Test Site. The fluids discharged from the samples of tuff during the experiments are dilute, nearly neutral solutions that differ only slightly from the starting groundwater composition. 8 references, 10 figures, 5 tables.
- Research Organization:
- Geological Survey, Menlo Park, CA (United States)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 59323
- Report Number(s):
- UCRL-15620; SANL-324-001; ON: DE85001000
- Resource Relation:
- Other Information: DN: Open-File Report 84-273; PBD: Jun 1984
- Country of Publication:
- United States
- Language:
- English
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Permeability and fluid chemistry studies of the Topopah Spring Member of the Paintbrush Tuff, Nevada Test Site: Part II
High-temperature permeability and groundwater chemistry of some Nevada Test Site Tuffs
Related Subjects
05 NUCLEAR FUELS
TUFF
PERMEABILITY
GROUND WATER
CHEMISTRY
CHEMICAL COMPOSITION
YUCCA MOUNTAIN
NEVADA TEST SITE
TEMPERATURE GRADIENTS
MAGNESIUM
SULFATES
FLUORIDES
SILICON OXIDES
ACID CARBONATES
POTASSIUM
TIME DEPENDENCE
HIGH-LEVEL RADIOACTIVE WASTES
EXPERIMENTAL DATA
Yucca Mountain Project