Open main menu
Home
Random
Recent changes
Special pages
Community portal
Preferences
About Wikipedia
Disclaimers
Incubator escapee wiki
Search
User menu
Talk
Dark mode
Contributions
Create account
Log in
Editing
Phosphorite
(section)
Warning:
You are not logged in. Your IP address will be publicly visible if you make any edits. If you
log in
or
create an account
, your edits will be attributed to your username, along with other benefits.
Anti-spam check. Do
not
fill this in!
==Classification of phosphatic sedimentary rocks== (1) ''Pristine:'' Phosphates that are in pristine conditions have not undergone [[bioturbation]]. In other words, the word pristine is used when phosphatic sediment, phosphatized [[stromatolite]]s and phosphate [[hardground]]s have not been disturbed.<ref name="Middleton"/> (2) ''Condensed:'' Phosphatic particles, laminae and beds are considered condensed when they have been concentrated. This is helped by the extracting and reworking processes of phosphatic particles or bioturbation.<ref name="Middleton"/> (3) ''Allochthonous:'' Phosphatic particles that were moved by turbulent or gravity-driven flows and deposited by these flows.<ref name="Middleton"/>
Edit summary
(Briefly describe your changes)
By publishing changes, you agree to the
Terms of Use
, and you irrevocably agree to release your contribution under the
CC BY-SA 4.0 License
and the
GFDL
. You agree that a hyperlink or URL is sufficient attribution under the Creative Commons license.
Cancel
Editing help
(opens in new window)