| |
Visual Examination of Fresh Break
|
| visual examination of fresh break |
colour light red and light brown, texture fine and compact, numerous small and few large inclusions: white, red, grey, voids |
| colour of fresh break |
core light red 10 R 6/6, edges pink 5 YR 7/4 |
| texture of fresh break |
smooth |
| hardness |
hard |
| |
Observation Under the Binocular Stereoscope
(all lengths in mm)
|
| porosity |
3%; void form: vughy, channel; void length: 0.04 (vughy, channel)-1.0 (vughy), 0.6 (channel) |
| inclusions |
20%, length: <0.04-0.8 |
| sorting |
bimodal: poorly-sorted sand in well-sorted silt |
| |
Inclusions
(all lengths in mm)
|
|
black inclusions |
infrequent, rounded - subrounded, very spherical - subspherical, elongate, black, <0.04-0.7 |
|
calciumcarbonate |
riddled with, rounded - subrounded, very spherical - subspherical, white, yellowish-white, <0.04-0.8 |
|
carbonate pseudomorphoses |
riddled with, rounded, very spherical - subspherical, elongated, white, yellowish-white, <0.04-0.7 |
|
foraminifera |
singular, subspherical, yellowish-grey, 0.28 |
|
mica |
infrequent, spherical, elongate, white, <0.04 |
|
more inclusions2 |
singular, rounded, subspherical, pale brown, grog?, 0.4-0.8 |
|
quartz |
infrequent, rounded - subrounded - angular, spherical - subspherical, clear, grey, yellowish, 0.04-0.4 |
|
reddish inclusions |
frequent, well rounded - subrounded, very spherical - subspherical, reddish-brown, red, <0.04-0.6 |