Title
Black Silty Shale
Alternative Title
Shale
Identifier
FR-14
Description
Clay sized feldspars and quartz present, but majority of crystal grains too small to identify in thin section. Surface contains some calcite that formed after lithification. Fresh surfaces do not effervesce with acid meaning reaction is caused by secondary calcite growth.
(Thin Section FOV: 0.64mm)
(Thin Section FOV: 0.64mm)
Date
Not given
Contributor
Western Minerals, Inc.
Spatial Coverage
Same locality as FR-13
Temporal Coverage
Mesozoic
Accrual Method
Purchased from Western Minerals, Inc.
Number of Thin Sections
1