Results 101 to 110 of about 14,415 (244)

Perturbation of the deep-Earth carbon cycle in response to the Cambrian Explosion. [PDF]

Sci Adv, 2022
Giuliani A, Drysdale RN, Woodhead JD, Planavsky NJ, Phillips D, Hergt J, Griffin WL, Oesch S, Dalton H, Davies GR.   +9 more
europepmc   +1 more source

Diamonds from the Coromandel Area, West Minas Gerais State, Brazil: an update and new data on surface sources and origin

Brazilian Journal of Geology
Important diamond deposits southeast of Coromandel and the local geology have been studied in an attempt to understand what surface source provided the stones.
Joachim Karfunkel, Donald Hoover, Augusto Fonseca Fernandes, Geraldo Norberto Chaves Sgarbi, Klaus Kambrock, Gustavo Diniz Oliveira   +5 more
doaj   +1 more source

Light oxygen isotopes in mantle-derived magmas reflect assimilation of sub-continental lithospheric mantle material. [PDF]

Nat Commun, 2021
Xu JY, Giuliani A, Li QL, Lu K, Melgarejo JC, Griffin WL.   +5 more
europepmc   +1 more source

Mineralogy of garnets from the Jubileinaya kimberlite pipe and Ottorzhenets kimberlite body

Руды и металлы
The article presents results of a study of the chemical composition of garnet xenocrystals from a concentrate of the heavy fraction of kimberlites from the Yubileinaya pipe and Ottorzhenets kimberlite body.
Milaushkin M. V., Mal’kovets V. G., Gibsher A. A., Yakovlev I. V., Tychkov N. S.   +4 more
doaj   +1 more source

Tungsten-182 evidence for an ancient kimberlite source. [PDF]

Proc Natl Acad Sci U S A, 2021
Nakanishi N, Giuliani A, Carlson RW, Horan MF, Woodhead J, Pearson DG, Walker RJ.   +6 more
europepmc   +1 more source

Sublithospheric diamond ages and the supercontinent cycle. [PDF]

Nature, 2023
Timmerman S, Stachel T, Koornneef JM, Smit KV, Harlou R, Nowell GM, Thomson AR, Kohn SC, Davies JHFL, Davies GR, Krebs MY, Zhang Q, Milne SEM, Harris JW, Kaminsky F, Zedgenizov D, Bulanova G, Smith CB, Cabral Neto I, Silveira FV, Burnham AD, Nestola F, Shirey SB, Walter MJ, Steele A, Pearson DG.   +25 more
europepmc   +1 more source

Synopsis of Lunda geology, NE Angola : implications for diamond exploration [PDF]

, 2003
No presente estudo, apresenta-se uma síntese da geologia da Luanda (NE de Angola) com vista a um melhor entendimento das ocorrências de jazigos primários e secundários de diamante. As enormes potencialidades diamantíferas da região são encaradas de forma
Pereira, Eurico, Reis, Bernardo, Rodrigues, José   +2 more
core  

Perovskite-bearing crystal-controlled oxide-silicate mantle xenoliths: Resolution to controversial origins? [PDF]

Sci Adv, 2023
Haggerty SE.
europepmc   +1 more source

Catastrophic volcanism as a cause of shocked features found at the K/T boundary and in cryptoexplosion structures [PDF]

The presence of quartz grains containing shock lamellae at the Cretaceous/Tertiary (K/T) boundary is viewed by many as the single most compelling evidence of meteoritic or cometary impact because there is no known endogenous mechanism for producing these
Loper, D. E., Mccartney, K.
core   +1 more source

Washington University Record, April 22, 1982 [PDF]

, 1982
https://digitalcommons.wustl.edu/record/1232/thumbnail ...

core   +1 more source