Columbia subject headings:
Carbonate rocks.
Cyclostratigraphy.
Geology, Stratigraphic--Carboniferous.
Milankovitch cycles.
Petroleum--Geology.
Harvard subject headings:
Carbonate rocks
Carbonate rocks.
Cyclostratigraphy.
Geology, Stratigraphic--Carboniferous
Milankovitch cycles.
Petroleum--Geology
Princeton subject headings:
Climatic changes.
Greenhouse effect, Atmospheric.
Ice sheets.
Milankovitch cycles.
Sea level.