3.1 Flashcards
(30 cards)
a principal that states the geologic processes that occurred in the past can be explained by current geologic processes
uniformitarianism
a principal that states the geologic processes that occur suddenly
catastrophism
h
hutton
supported huttons idea
lyell
the scientific study of fossils
paleontology
study of fossils (old) and plants
paleobotonist
person who studies fossils modern day
palentologist
the remains of physical evidence if an organism preserved by geological processes
fossil
a fossilized mark that is formed in soft sediment by the movement of an animal
trace fossil
fossilized tree risen sticky sap
amber
when an organism dies, there is the cast, and its flesh decays to make the casts
cast
when an organism dies, it is recovered by sediment
mold
the process by which organic matter exposed to minerals over a long period is turned into a stony substance.
petrification
is a process of fossilization in which mineral deposits form internal casts of organisms. Carried by water, these minerals fill the spaces within organic tissue.
perminilerization
a mixture of dark bituminous pitch with sand or gravel, used for surfacing roads, flooring, roofing, etc.
aspholt
animal dung
coprolite
a fossil that is found in a rock layer of only one geologic age and that is used to establish the age of the rock layers
index fossil
index fossil
phiacops
index fossil
animits
index fossil
trophite
the standard method used to divide the earths long natural history into managable parts
geologic time scale
a unit of geologic time that includes two or ore periods
era
the largest division of geologic time
eon
a subdivision of a geologic period
epoch
