| |
Visual Examination of Fresh Break
|
| visual examination of fresh break |
colour red , texture middle-fine and compact, numerous small and some large inclusions: white, grey, red, voids |
| colour of fresh break |
red 10 R 5/6 |
| texture of fresh break |
granular |
| hardness |
hard |
| |
Observation Under the Binocular Stereoscope
(all lengths in mm)
|
| porosity |
7.5%; void form: vughy, channel; void length: 0.04 (vughy), 0.06 (channel)-0.8, 1x 1.2 (vughy), 0.4, 1x 1.2 (channel) |
| inclusions |
20%, length: <0.04-0.9 |
| sorting |
bimodal: poorly-sorted sand in well-sorted silt |
| |
Inclusions
(all lengths in mm)
|
|
black inclusions |
singular, spherical, elongate, black, 0.08-0.24 |
|
calciumcarbonate |
frequent, spherical - subspherical, elongate, white, 0.04-0.9 |
|
carbonate pseudomorphoses |
frequent, spherical - subspherical, subelongate, white, 0.04-0.6 |
|
foraminifera |
infrequent, spherical, greyish, white, 0.28 |
|
mica |
singular, spherical, white, <0.04 |
|
quartz |
very frequent, well rounded - rounded, subangular, very spherical - subspherical, grey, clear, white, <0.04-0.28 |
|
reddish inclusions |
infrequent, rounded, spherical - subspherical, very elongated, reddish brown, red, 0.06-0.8 |