a fossil copy of an organism made when a mold of the organism is filled with sediment or mineral deposits

A fossil formed when an organism buried in sediment dissolves, leaving a hollow area.

The process by which organic material is turned into stone.

Process of fossilization wherein the original organic material in a fossil has been reduced to a film of carbon looking like a black drawing

Sticky residue captures insects and other invertebrates

organism was trapped in a tar pit and the remains fossilized

organism was covered in ice and the remains were fossilized

Replacement (petrification)

remains dissolve and are replaced with minerals

occurs when minerals carried by water are deposited around a hard structure

A type of fossil that provides evidence of the activities of ancient organisms

Geological Time Scale (GTS)

the categories of time into which Earth's history is usually divided by geologists and paleontologists: eons, eras, periods, epochs

information about past life, including the structure of organisms, what they ate, what ate them, in what environment they lived, and the order in which they lived

fossils of widely distributed organisms that lived during only one short period

The geologic principle that states that in horizontal layers of sedimentary rock, each layer is older than the layer above it and younger than the layer below it.

Any feature that cuts across a rock or body of sediment must be younger than the rock or sediment that it cuts across

uses radioactive decay to determine an exact age

uses fossils and stratigraphic laws to determine the relative ages of rock strata.

A scientist who studies fossils to learn about organisms that lived long ago

a rock that forms from compressed or cemented layers of sediment

a long and distinct period of history with a particular feature or characteristic.

the largest division of geologic time

(GTS) This is the basic unit of geologic time. A Period lasts tens of millions of years, which is the time it takes to form one type of rock system.

Fossilization process

1. Death, 2. Decay, 3. Burial, 4. Fossilization, 5. Erosion/exposure

Pieces of rock found in other layers are always older.

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Geological time

Term	Definition
Cast	a fossil copy of an organism made when a mold of the organism is filled with sediment or mineral deposits
Mold	A fossil formed when an organism buried in sediment dissolves, leaving a hollow area.
Petrification	The process by which organic material is turned into stone.
Carbonization	Process of fossilization wherein the original organic material in a fossil has been reduced to a film of carbon looking like a black drawing
Fossil Resin (Amber)	Sticky residue captures insects and other invertebrates
Tar fossilization	organism was trapped in a tar pit and the remains fossilized
Ice fossilization	organism was covered in ice and the remains were fossilized
Replacement (petrification)	remains dissolve and are replaced with minerals
Permineralization	occurs when minerals carried by water are deposited around a hard structure
Trace fossil	A type of fossil that provides evidence of the activities of ancient organisms
Geological Time Scale (GTS)	the categories of time into which Earth's history is usually divided by geologists and paleontologists: eons, eras, periods, epochs
Fossil record	information about past life, including the structure of organisms, what they ate, what ate them, in what environment they lived, and the order in which they lived
Index fossil	fossils of widely distributed organisms that lived during only one short period
Law of Superposition	The geologic principle that states that in horizontal layers of sedimentary rock, each layer is older than the layer above it and younger than the layer below it.
Law of Cross Cutting	Any feature that cuts across a rock or body of sediment must be younger than the rock or sediment that it cuts across
Absolute age dating	uses radioactive decay to determine an exact age
Relative age dating	uses fossils and stratigraphic laws to determine the relative ages of rock strata.
Paleontologist	A scientist who studies fossils to learn about organisms that lived long ago
Sedimentary rock	a rock that forms from compressed or cemented layers of sediment
Era	a long and distinct period of history with a particular feature or characteristic.
Eon	the largest division of geologic time
Period	(GTS) This is the basic unit of geologic time. A Period lasts tens of millions of years, which is the time it takes to form one type of rock system.
Fossilization process	1. Death, 2. Decay, 3. Burial, 4. Fossilization, 5. Erosion/exposure
Law of Inclusions	Pieces of rock found in other layers are always older.

Created by: user-2004312

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