7711.pdf (304.82 kB)
Download fileSupplemental material: Subdivision of Ordovician and Silurian time scale using accumulation rates of graptolitic shale
journal contribution
posted on 1977-01-01, 00:00 authored by M. ChurkinGSA Data Repository Item 7711, Geology, Vol. 5, p. 452. File size: 6 p., about 305 K bytes.