Rajive
I haven't read the other responses yet, so this may be
redundant.
Two possibilities:
(1) anisotropy: if this is shallow marine data there
should be a difference between longshore drift and
off-shore deepening of sea-bed. You have an
omni-directional semi-variogram. It is possible that
Hole effect model, usually means your deposit has
alternating high and low grade zones. Sorry I'm not
familiar with the geology of this deposit but examples
of this could be pods of high grade spaced apart from
each other with waste or low grade halos between
them. If only the high grade zones
, December 07, 2004 4:50 PM
To: [EMAIL PROTECTED]
Subject: [ai-geostats] variogram analysis
My question is general. What do you conclude if your variogram is
wavy? Cyclic patterns? I have what appears to be high nugget,
followed by a wavy pattern.
If you wish, here is more info: an offshore placer
Dear Rajive:
I cannot conclude with only 328 pairs that the feature is "wavy" because I do not know how those pairs are distributed for each point in the variogram. Try different lag spacings, or create an "equal-n" lag variogram where each lag has the same number of pairs. If that shows the
