Framboids, microscopic sub-spheroidal aggregates of pyrite microcrystals, are found in
sediments of all ages and framboid size-frequency distributions are widely used to …

Salinity is a fundamental property of watermasses that is useful in paleoenvironmental and
paleoecological studies, yet the theory of application of geochemical proxies to paleosalinity …

The black shale submember of core shales of Pennsylvanian Kansas-type cyclothems is
highly enriched in redox-sensitive trace elements (TEs) relative to the overlying gray shale …

The special and representative polymorphous pyrites of the Logatchev area, Mid-Atlantic
Ridge, have a close evolution relationship. There are relatively complete pyrite …

Abstract Ten Barnett Shale lithofacies have been recognized in a 223-ft (68-m)-long core
from Johnson County, Texas. Eight of these lithofacies match those previously identified in …

Pyrite framboids have been synthesised as the product of the oxidation of FeS (mackinawite)
by H2S in aqueous solutions at pH 6, Eh>− 250 mV and temperatures above 60° C in the …

The formation pathways of pyrite are controversial. Time resolved experiments show that in
reduced sulphur solutions at low temperature, the iron monosulphide mackinawite is stable …

Formation constants for thioarsenite species have been determined in dilute solutions at 25°
C, ΣH 2 S from 10-7.5 to 10-3.0 M, ΣAs from 10-5.6 to 10-4.8 M, and pH 7 and 10. The …

Geochemical and microbiological factors that control long‐term performance of subsurface
permeable reactive barriers were evaluated at the Elizabeth City, North Carolina, and the …

—Time-dependent variations in the physicochemical properties of pyrite were investigated
in four sediment cores from the Black Sea. In the laminated, deep-basin sediments of Unit I …