Oxygen and hydrogen isotope geochemistry of the Star-Morning mine, Coeur d'Alene mining district, Idaho

Journal Article · Fri Feb 01 04:00:00 EST 1991 · Geology; (USA)

DOI:https://doi.org/10.1130/0091-7613(1991)019<0131:OAHIGO>2.3.CO;2· OSTI ID:5796453

Constantopoulos, J ^[1]; Larson, P B ^[2]

---

1. Univ. of Idaho, Moscow (USA)
2. Washington State Univ., Pullman (USA)

Oxygen isotope values of vein quartz from the Star-Morning mine range from 13.2{per thousand} to 16.2{per thousand} relative to standard mean ocean water. Calculated isotopic values of water in equilibrium with the vein quartz at 325{degree}C range from 7.2{per thousand} to 10.2{per thousand}. The {delta}{sup 18}O{sub quartz} values decrease with depth in the mine. The {delta}D values of quartz inclusion fluids range from {minus}18{per thousand} to {minus}105{per thousand} and do not significantly correlate with depth. Oxygen isotope values of Belt Supergroup whole-rock samples range from 13.8{per thousand} to 16.8{per thousand}. The data indicate that the fluids were a mix of metamorphic water released from the Belt rocks during low-grade metamorphism, and {sup 18}O-shifted meteoric water.

• OSTI ID: 5796453
• Journal Information: Geology; (USA), Journal Name: Geology; (USA) Vol. 19:2; ISSN GLGYB; ISSN 0091-7613
• Country of Publication: United States
• Language: English

Related Subjects

58 GEOSCIENCES
580000* -- Geosciences
CHALCOGENIDES
CHEMISTRY
DEPTH
DIMENSIONS
EVEN-EVEN NUCLEI
FEDERAL REGION X
FLUIDS
GEOCHEMISTRY
GEOLOGIC DEPOSITS
GEOLOGY
GROUND WATER
HYDROGEN COMPOUNDS
HYDROGEN ISOTOPES
IDAHO
ISOTOPE RATIO
ISOTOPES
LEAD ORES
LIGHT NUCLEI
METAMORPHISM
METEORIC WATER
MINERALS
MINES
NORTH AMERICA
NUCLEI
ORES
OXIDE MINERALS
OXIDES
OXYGEN 18
OXYGEN COMPOUNDS
OXYGEN ISOTOPES
QUARTZ
RESERVOIR FLUIDS
SILICON COMPOUNDS
SILICON OXIDES
SILVER ORES
STABLE ISOTOPES
UNDERGROUND FACILITIES
USA
WATER
ZINC ORES