his notes were discovered in 1690; named Codex Leicester
Leonardo Da Vinci
established the laws of superposition and original horizontality
Nicholas Steno
established principle of uniformity; father of modern geology
James Hutton
proposed classifying earth’s crust into primary, secondary, tertiary
Giovanni Arduino
created the frist geological map of england
William Smith
applied stratigraphy to the paris basin
Georges Cuvier
concerned with geologic time units
geochronology
body of rock can be distinguished based on its lithological characteristics
lithostratigraphical units
body of rock can be defined by its fossil content
biostratigraphic units
can be defined by the age of the rock
chronostratigraphic units
a body of rock distinguished by its magnetic properties
magnetostratigraphic units
body of rock defined by their position compared to unconformities
allostratigraphic units
basic unit of lithostratigraphic division of rocks
formation
smaller units in a formation with limited lateral extent
member
individual beds distinct due to their lithology or fossil content
bed
two or more formations associated and share certain characteristics
group
