books.google.com - Classically orbital cycles have been recognized in pelagic and lacustrine sequences characterized by quiet sedimentation, not disturbed by tectonics. Hoiwever, there is now increasing recognition that orbital cycles do influence climate and oceanography in general terms. There is also increasing acceptance...http://books.google.com/books/about/Orbital_Forcing_and_Cyclic_Sequences.html?id=ftBQyKgEbMIC&utm_source=gb-gplus-shareOrbital Forcing and Cyclic Sequences