| |
Visual Examination of Fresh Break
|
| visual examination of fresh break |
colour red and grey, texture middle fine and compact, numerous small to large inclusions: grey, black, white, reddish, voids |
| colour of fresh break |
light red 10 R 6/6, interior area gley 1 6/- |
| texture of fresh break |
granular |
| hardness |
hard |
| |
Observation Under the Binocular Stereoscope
(all lengths in mm)
|
| porosity |
5%; void form: vughy, channel; void length: 0.04 (vughy), 0.06 (channel)-1.0 (vughy), 1.2 (channel) |
| inclusions |
15%, length: <0.04-1.0 |
| sorting |
bimodal: poorly-sorted sand in well-sorted silt |
| |
Inclusions
(all lengths in mm)
|
|
black inclusions |
very frequent, well rounded - subrounded, very spherical - subspherical, elongate, black, grey, black and red, <0.04-1.0 |
|
calciumcarbonate |
riddled with, rounded, very spherical - subspherical, elongate - subelongate, yellowish white, white, <0.04-0.6 |
|
carbonate pseudomorphoses |
riddled with, very spherical - subspherical, yellowish white, white, <0.04-0.16 |
|
mica |
infrequent, spherical, white, <0.04-0.06 |
|
quartz |
frequent, well rounded - rounded, subangular, very spherical - subspherical, subelongate, clear, grey, 0.04-0.7 |
|
reddish inclusions |
infrequent, very spherical - subspherical, elongate, red, reddish brown, 0.04-1.0 |