stable
Entry: Member
URI: https://data.geoscience.fr/ncl/LithoStratRank/11
A formal lithostratigraphic unit next in rank below a formation, and always part of a formation. It possesses lithologic properties distinguishing it from adjacent parts of the formation. No fixed standard is required for the extent and thickness of a member. A formation need not be divided into members unless a useful purpose is thus served. Some formations may be completely divided into members; others may have only certain parts designated as members. A member may extend from one formation to another. Specially shaped forms of members (or of formations) are lenses and tongues.
Definition
broader |
Formation
|
||||
category |
geology
|
||||
description |
|
||||
in scheme |
Lithostratigraphic ranks
|
||||
is described by |
litho.htm
|
||||
label |
|
||||
narrower |
Bed
|
||||
nature |
Référent
|
||||
notation |
11
|
||||
pref label |
|
||||
same as |
member
|
||||
status |
Valid
|
||||
type |
Concept
|