GEO 1050 section 1 Flashcards
to learn
Geology
the study of rocks, minerals, and earth processes
Stratigraphy
the scientific study of geological layers in time and space
Isotope
another way to describe an element, its an alternate form of an element that varies by neutrons
half life
the time it tales for half of the amount of parent to decay into daughter
evolution
is a biological or behavioral change through time
species
a population of interbreeding organisms that are producing fertile offspring
Fossil
rock and mineral evidence of past life
body fossil
rock and mineral anatomical evidence of past life Commonly skeletons can be insects in amber
Trace Fossils
something lived through the behavior of the life form
-are only able to come from animals.
- (Behavioral fossils)
Anoxic Environment
an environment where there is little to no oxygen allowing the preservation of things
Anoxia
Lack of oxygen
crust
Crust- the outer shell of earth comprised of rocks and minerals totally between 7-40km (thick)
Sedimentary rock
grains of other rocks and minerals cumulated by water, wind, gravity, and ice
NCLIS
NCLIS- Natural, crystal shape, lattice of atoms, Inorganic, solid
silicate mineral
most common minerals in the crust, are formed by a tetrahedron (feldspar, mica, olivine, quartz, pyroxene)
Tetrahedron
four-sided shape composed of 4 oxygen molecules and 1
radioactive decay
the conversion of 1 isotope into another due to the loss of particles
strata
layers of rock or sediment
The law of super position
also known as the layered cake rule, youngest strata on top oldest on the bottom
Sandstone
clastic sedimentary rock
weathering
physical braking and chemical dissolution of rocks and minerals
carbonic acid
CO2+H2O = H2CO3
Limestone
mainly calcium carbonate and it forms in shallow marine environments
