Key points are not available for this paper at this time.
Of 153 diamonds from the Sloan diatremes in the Colorado-Wyoming kimberlite district, comprising the bulk of the inclusion-bearing stones recovered during prospecting operations, 80 released primary inclusions which, for the most part, fall into the broadly defined eclogitic and peridotitic parageneses found worldwide.
Otter et al. (Fri,) studied this question.