Results 101 to 110 of about 7,100 (219)

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

Silicate-carbonate systems with bearing on the origin and crystallization of carbonatites [PDF]

, 1978
Experimental approaches attempt to determine the routes by which crustal carbonatite magmas can be derived from C02-bearing peridotite at high pressures.
Wyllie, P. J.
core  

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

Geological mapping of Sierra Leone : baseline assessment and next steps [PDF]

, 2018
Sierra Leone is a resource-rich country, with extensive known and potential mineral and petroleum resources. However, knowledge about the geology of the country is limited, with very little modern data in the public domain, and this hinders sustainable
Ford, J., Goodenough, K.M., Jones, D.
core  

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

Ways of increasing efficiency of diamondieferous kimberlites prospecting (on the example of the Siberian platform)

Мінеральні ресурси України, 2015
Carried out analysis of the material on diamondiferousness of the Siberian platform allows affirming that in spite of the large volume of the obtained for more than half a century period actual material there is a number of problem issues decision of ...
M. M. Zinchuk
doaj  

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

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