Boron in illite as an indicatior of paleosalinity of Illinois coals

Journal Article · Mon Jan 01 04:00:00 EST 1973 · J. Sediment. Petrol.; (United States)

OSTI ID:6357105

Bohor, B F; Gluskoter, H J

Trace amounts of B locked in the illite lattice reflects the paleosalinity of the water in which the Herrin (No. 6) coal of Illinois was deposited. Though 31 samples were few to be statistically significant, a modified method of boron-in-illite measurement was presented in detail. Additional samples of the Springfield-Harrisburg (No. 5), Danville (No. 7), Indiana Seelyville Coal Member (III), and the Survant Coal Member (IV) were also analyzed. The samples were low-temperature-ashed, sized to less than 1 micron, and leached in successive acids and bases to remove all non-illite minerals. The resulting pure illite was digested and analyzed colorimetrically for B content. Accepted ranges of B concentration indicating levels of paleosalinity were applied to the boron measurements. Areas of the Herrin (No. 6) coal with B values less than 125 ppM, indicating relatively fresh water, coincided with low-sulfur areas of the coal. Highest paleosalinity values (highest B concentration) were in coal furthest from fresh water channel systems, and on the west side of the system, reflecting the seaward direction.

• OSTI ID: 6357105
• Journal Information: J. Sediment. Petrol.; (United States), Journal Name: J. Sediment. Petrol.; (United States) Vol. 43:4; ISSN JSEPA
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010600* -- Coal
Lignite
& Peat-- Properties & Composition
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400104 -- Spectral Procedures-- (-1987)
ABSORPTION SPECTROSCOPY
BORON
CARBONACEOUS MATERIALS
CHEMICAL ANALYSIS
CLAYS
COAL
ELEMENTS
ENERGY SOURCES
FOSSIL FUELS
FUELS
GREAT LAKES REGION
HYDROGEN COMPOUNDS
ILLINOIS
ILLITE
MATERIALS
MINERALS
NORTH AMERICA
OXYGEN COMPOUNDS
SALINITY
SEMIMETALS
SPECTROSCOPY
TRACE AMOUNTS
USA
WATER