Jordans Roach

Quarry Report No. 50: Spring 2008
Jordans Quarry, Portland

Maximum Block Sizes
Overall Size              3.78m³
Length                      2.80m
Bed Height                1.35m
Average Block Sizes
Overall Size              1.10m³
Length                      1.27m
Bed Height                0.75m
Availability
Current Availability
(0-3 months)            1000 - 2000m³
Future Availability
(3-12 months)          1000 - 2000m³
Description
Shell Content
Shelly Roach containing large grey shell fragments. The shells include Turreted Gastropods (Portland Screws) as well as large clams.
Shell Distribution
The shelliest sections of Roach tend to be towards the middle of the blocks.
Texture
The large Turreted Gastropod and clam shells are associated with voids. Some of the voids can be in excess of 50mm long. The texture in between the voids is often tight and dense.
Colour
Typical Portland colour, creamy/white, although the large concentrations of grey shells can darken the overall colour.