A Geoscience Digital Image Library

TitlePressure shadow mineralization on margins of pyrite framboid
DescriptionThis photomicrograph shows pressure shadow mineralization on margins of pyrite framboid. An exceptionally large and complex quartz and calcite pressure shadow on a pyrite framboid from the Hatch Hill Formation of the Taconic slate belt illustrates the use of these objects in determining incremental strain history. Periods of both coaxial and non-coaxial fiber growth can be observed. The field of view is 1 cm across (!!!), veiwed in cross-polarized light.
LithostratigraphyHatch Hill Formation
PhotographerArthur Goldstein. 1995.
CollectionKeck Structural Geology Slide Set #AG5.
Key wordsmineralization, pyrite, strain,
Tech details372 KB. Thin section.
GeoDIL number3005