The Origin of Diamonds in Drift of the North Central United States

@article{Schwarcz1965TheOO,
  title={The Origin of Diamonds in Drift of the North Central United States},
  author={Henry P. Schwarcz},
  journal={The Journal of Geology},
  year={1965},
  volume={73},
  pages={657 - 663}
}
  • H. Schwarcz
  • Published 1 July 1965
  • Geology
  • The Journal of Geology
Diamonds found in Wisconsin drift in Ohio, Indiana, Michigan, and Wisconsin are proposed to have been carried south from an ancient meteorite crater at present outlined by the Nastapoka island arc in southeastern Hudson Bay. Following meteorite impact, brecciation extended to a depth of about 150 km., and fragments of this mantle-rock breccia, enclosing diamonds, are inferred to have been brought to the surface in a central uplift similar to those found in lunar craters. Following the crater's… 
The Origin of Diamonds in Drift of the North Central United States: A Discussion
H P. Schwarcz's hypothesis (Schwarcz, 1965) on the possible meteorite crater in Hudson Bay is plausible, but his conclusion that there is a relationship with the diamonds in the drift of the northern
MANTLE XENOLITHS FROM KIMBERLITE NEAR KIRKLAND LAKE
tlltramafic mantle xenoliths, predominantly consisting of gamet therzolite, occur in the C-14 kimberlite, approximately 25 km east-northeast of Kirkland Lake, Ontario. The xenolitls are coarse
The origin of diamonds in western Minas Gerais, Brazil
Important diamond mineralized alluvium/colluvium occurs in western Minas Gerais (WMG) in the Brasília Orogenic Belt (700-450 my). Diamonds are geographically related to glacial and periglacial

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