Preliminary report on fluid inclusions from halites in the Castile and lower Salado formations of the Delaware Basin, southeastern New Mexico. [Freezing-point depression]

Technical Report · Sun Sep 01 04:00:00 EDT 1985

DOI:https://doi.org/10.2172/5158636· OSTI ID:5158636

Stein, C. L.

A suite of samples composed primarily of halite from the upper Castile and lower Salado Formations of the Permian Basin was selected from Waste Isolation Pilot Plant (WIPP) core for a reconnaissance study of fluid inclusions. Volume percent of these trapped fluids averaged 0.7% to 1%. Freezing-point depressions varied widely and appeared to be unrelated to fluid-inclusion type, to sedimentary facies, or to stratigraphic depth. However, because very low freezing points were usually associated with anhydrite, a relation may exist between freezing-point data and lithology. Dissolved sulfate values were constant through the Castile, then decreased markedly with lesser depth in the lower Salado. This trend correlates very well with observed mineralogy and is consistent with an interpretation of the occurrence of secondary polyhalite as a result of gypsum or anhydrite alteration with simultaneous consumption of dissolved sulfate from the coexisting fluids. Together with the abundance and distribution of fluid inclusions in primary or ''hopper'' crystal structures, this evidence suggests that inclusions seen in these halites did not migrate any significant geographical distance since their formation. 28 refs., 17 figs., 2 tabs.

• Research Organization: Sandia National Labs., Albuquerque, NM (USA)
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 5158636
• Report Number(s): SAND-83-0451; ON: DE86002094
• Country of Publication: United States
• Language: English

Related Subjects

052002* -- Nuclear Fuels-- Waste Disposal & Storage
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
BRINES
CORRELATIONS
DATA
EXPERIMENTAL DATA
FEDERAL REGION VI
FUNCTIONAL MODELS
GEOLOGIC DEPOSITS
HALIDE MINERALS
HALITE
INCLUSIONS
INFORMATION
LASER SPECTROSCOPY
LITHOLOGY
MANAGEMENT
MELTING POINTS
MINERALS
NATIONAL ORGANIZATIONS
NEW MEXICO
NORTH AMERICA
NUCLEAR FACILITIES
NUMERICAL DATA
OXYGEN COMPOUNDS
PERMIAN BASIN
PHYSICAL PROPERTIES
PILOT PLANTS
RADIOACTIVE WASTE DISPOSAL
RADIOACTIVE WASTE FACILITIES
RAMAN SPECTRA
RAMAN SPECTROSCOPY
SALT DEPOSITS
SITE SELECTION
SPECTRA
SPECTROSCOPY
SULFATES
SULFUR COMPOUNDS
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE
UNDERGROUND FACILITIES
US DOE
US ORGANIZATIONS
USA
WASTE DISPOSAL
WASTE MANAGEMENT
WIPP