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Some may regard uncommon modes of a fossil preservation to be:-
1. Carbon replication of cellulosic structures as in U Carboniferous Plants etc. Also Graptolites in Silurian.
2. "Negative" or "Hollowcast" by solution (of calcareous test) in siliceous bed.
3. Substitution replication by solution effect to Pyrite, Hydrated Silica (flint) or other mineral eg Echinoderma in Cretaceous also wood of tree trunks as in Petrified Forest in Az. USA , also of Ammonites etc in Jurassic
4. "Wrapping" in a Geode, usually with 3 above
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Which is not a reason for the lack of a fossil record from the precanbrian time?
The fossil records have eroded due to lack of proper preservation.
When tiny spaces inside a fossil are filled in with minerals you have what kind of preservation?
Permineralization.
Which type of fossil preservation's is a thin carbon silhouette of the original organism?
Carbon film
What is chemical preservation?
a type of preservation of food
Why are some vibrational modes of benzene IR inactive?
Some vibrational modes of benzene involve a change in electric dipole moments. These are IR active modes. Some vibrational modes have no net change in dipole moment (which is true for most of the modes since benzene is a planar symmetrical molecule) when they stretch, so they are IR inactive. There are 30 vibrational modes for benzene altogether, 8 of which are IR active. Some vibrational modes of benzene involve a change in electric dipole moments. These are IR active modes. Some vibrational modes have no net change in dipole moment (which is true for most of the modes since benzene is a planar symmetrical molecule) when they stretch, so they are IR inactive. There are 30 vibrational modes for benzene altogether, 8 of which are IR active.
Which is not a reason for the lack of a fossil record from the precanbrian time?
The fossil records have eroded due to lack of proper preservation.
When tiny spaces inside a fossil are filled in with minerals you have what kind of preservation?
Permineralization.
Which type of fossil preservation's is a thin carbon silhouette of the original organism?
Carbon film
What do you do with a skull fossil in diamond?
Go underground and dig on walls. its uncommon but you will eventually find it.
What is Conservation Lagerstätten?
(Konservat-Lagerstätten) - fossil deposits where preservation is remarkable because of the unusual quality.
What are the fossils?
There are rarer fossils, as in fossils that belong to creatures that haven't been discovered yet or are very uncommon, but no "best" fossil.
Is buried slowly a condition that makes fossil formations more likely?
No. Preservation as a fossil is most likely when the organism is buried quickly. Slow burial gives opportunity for decay and other destructive processes to occur.
What are the best fossils?
There are rarer fossils, as in fossils that belong to creatures that haven't been discovered yet or are very uncommon, but no "best" fossil.
What is the difference between fossil rocks and non fossil rocks?
fossil rock has to be sedimentary, never igneous nor metamorphic, it contains dead very old plants, creatures any kind..... and that suggests a suitable environment for preservation; quick burial and no air existence also not a very high temperature to keep the shape of the fossil.
Which type of preservation produces a 3-D replica showing the exterior features of an organism?
Which type of preservation produces a 3-D replica, showing the exterior features of an organism?A. Microfossil B. Carbon film C. Trace fossil D. Cast
Where is cheirus in fossil fighters?
Cheirus fossils can be found on Secret Island, in the Crashed Starship. It's a bit uncommon, so you may have to travel to the site a few times.
What has the author Peter Gleba written?
Peter Gleba has written: 'Massachusetts mineral and fossil localities' -- subject(s): Collection and preservation, Fossils, Massachusetts, Minerals, Mines and mineral resources
