I need some deffinitions!?

Question

I cant find these anywhere, Geological Column, Mineralized Fossil, Mould Fossil, and Cast Fossil.
If you could help me find out what these are, i would be very greatful, and give you the points!

Answer 1

Geologic column - the imaginary but also the real-life staking of geologic ages represented in rocks, oldest to youngest.

mineralized - bone/shell etc. is replaced, part by part, from organic to mineral components

mould - hole in rock where organism used to be

cast - filled in hole

Answer 2

The Geologic Column is an ideal, complete, chronological reference frame that defines the status of those strata having (more or less) a worldwide distribution or correlation in time.

The original remains of the organism might be completely dissolved or otherwise destroyed. When all that is left is an organism-shaped hole in the rock, it is called a mould fossil or typolite. If this hole is later filled with other minerals, it is called a cast fossil and is considered a replacement fossil since the original materials have been completely replaced by new, unrelated ones. In some cases replacement occurs so gradually and at such fine scales that no "hole" in the rock can ever be discerned and microstructural features are preserved despite the total loss of original material.

Answer 3

The geological column is divided according to four hierarchical levels: Eon, Era, Period, Epoch.
A given Eon (the most comprehensive level) is composed of several Eras.
A given Era is divided into several Periods.
A given Period is divided into several Epochs (the smallest level).
Epochs within the Paleozoic and Mesozoic Eras are omitted for simplicity.


Fossil bone can be mineralized in several ways. Permineralized fossils have their original pore space infilled with minerals. Permineralization is commonly confused with petrification, in which the original material of an organism is replaced with minerals, and the pore space is infilled with minerals. In other words, petrification is a combination of permineralization and replacement.


Mould, cast and trace fossils
If percolating water dissolves the remains of an organism, and thereby leaves a hole, this is called a mould fossil. If this hole is filled with more minerals, it is called a cast fossil. If the burial of the organism was rapid, then chances are that even impressions of soft tissues remain. Trace fossils are the remains of track ways, burrows, footprints, eggs and shells, nests and droppings. The latter, called coprolites, can give insight in the feeding behavior of animals and can therefore be of great importance.

Hope these help some its all I could find

Answer 4

The geological column was largely developed during the early 19th century before Darwinian evolutionary theories were used to interpret the fossils and long before radiometric techniques were developed to measure the ages of rocks. Different geological eras and periods were distinguished primarily on the basis of fossils and secondarily upon lithological and mineralogical characteristics.
If percolating water dissolves the remains of an organism, and thereby leaves a hole, this is called a mould fossil. If this hole is filled with more minerals, it is called a cast fossil. If the burial of the organism was rapid, then chances are that even impressions of soft tissues remain. Trace fossils are the remains of track ways, burrows, footprints, eggs and shells, nests and droppings. The latter, called coprolites can give insight in the feeding behavior of animals, and can therefore be of great importance.