Sulfur isotopic variations in low-sulfur coals from the Rocky Mountain region
作者： Keith C. Hackley , Thomas F. Anderson
DOI: 10.1016/0016-7037(86)90132-8
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摘要: Abstract The isotopic composition of organic sulfur and disseminated massive pyrite has been determined in vertical sections from eight low-sulfur coals (Paleocene Cretaceous age) four coal fields Wyoming Colorado. δ 34 S values five sites the Anderson-Wyodak (Paleocene) eastern Powder River Basin, Wyoming, are more negative than expected for (−18.7 to +3.9%), suggesting that was derived a combination original plant secondary, S-depleted sulfur. probably produced bacterial reduction sulfate which infiltrated top bottom during peat stage. Paleocene Hanna ranges +1.6 +13.1 %. Vertical variation here suggests partially closed system seam. A Green Coal region, Colorado, both yield (+2.4 +8.1 %) consistent with what would be at all varies widely (-52.6 +34.6%). isotope correlates sulfur, implying similar mode timing incorporation. shows no such correlation.
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