LITHOSTRATIGRAPHY Flashcards
1
Q
lithostratigraphy
A
study of the sequence and interpretation of layered rock sequences, based on physical characterises (lithology) of the rocks
2
Q
how does lithology divide rocks
A
stratotype
lithosome
3
Q
stratotype (formal designation)
A
designed types unit of readily accessible rocks in natural outcrop, mines or bore holes
4
Q
lithosome (informal designation)
A
masses of rock with uniform character
5
Q
what cant lithostratigraphy do
A
denote time
6
Q
generalisations about lithostratigraphic units
A
sedimentary, extrusive igneous, meta-sedimentary, meta volcanic
general conforms to law of superposition
commonly stratified and tabular in form
identification is based on observable rock characteristics
boundaries can be either sharp and clear, or gradational
