Results 101 to 110 of about 657 (209)

Hetero-ore-bearing regional permeable zones in the plate complex of the East Siberian platform

Руды и металлы
The article considers hetero-ore-bearing regional permeable zones identified by the author in rocks of the plate complex of the East Siberian Platform. A geological and genetic model of these ore-bearing zones is proposed.
Molchanov A. V
doaj   +1 more source

DNA sequencing, microbial indicators, and the discovery of buried kimberlites. [PDF]

Commun Earth Environ, 2023
Simister RL, Iulianella Phillips BP, Wickham AP, Cayer EM, Hart CJR, Winterburn PA, Crowe SA.   +6 more
europepmc   +1 more source

Thermal State and Thickness of the Lithospheric Mantle Beneath the Northern East-European Platform: Evidence from Clinopyroxene Xenocrysts in Kimberlite Pipes from the Arkhangelsk Region (NW Russia) and Its Applications in Diamond Exploration

Geosciences
This paper presents the reconstruction of the architecture of the lithospheric mantle, including its thermal state and thickness, as well as the scale and efficiency of its sampling by four kimberlites from the Arkhangelsk diamondiferous province ...
Elena Agasheva, Alyona Gudimova, Elena Malygina, Alexey Agashev, Alexey Ragozin, Elena Murav’eva, Anna Dymshits   +6 more
doaj   +1 more source

Diamond preservation in the lithospheric mantle recorded by olivine in kimberlites. [PDF]

Nat Commun, 2023
Giuliani A, Phillips D, Pearson DG, Sarkar S, Müller AA, Weiss Y, Preston R, Seller M, Spetsius Z.   +8 more
europepmc   +1 more source

Phase relationships in grunerite-garnet-bearing amphibolites in the systemCFMASH, with applications to metamorphic rocks from the Central Zone of the Limpopo Belt, South Africa.

A petrogenetic grid in the model system CaO–FeO–MgO–Al2O3–SiO2–H2O is presented, illustrating the phase relationships among the minerals grunerite, hornblende, garnet, clinopyroxene, chlorite, olivine, anorthite, zoisite and aluminosilicates, with quartz
Zeh, A., Klemd, R., Holland, T. J. B.
core   +1 more source

Re-estimation of erosion levels in Group I and II kimberlites between Lesotho, Kimberley and Victoria West, South Africa

, 2006
The estimation of post-emplacement kimberlite erosion in South Africa through the study of upper-crustal xenoliths is relatively unexplored; however the presence of these xenoliths has been recognized for well over a 100 years. Previously postemplacement
Hanson, E Kelsey, Moore, John M, Robey, Julian van Aardt, Marsh, Julian S, Bordy, Emese M   +4 more
core  

Fine-grained interplanetary dust input during the Turonian (Late Cretaceous): evidence from osmium isotope and platinum group elements. [PDF]

Sci Rep, 2023
Matsumoto H, Ishikawa A, Coccioni R, Frontalini F, Suzuki K.   +4 more
europepmc   +1 more source

Accelerated mineral bio-carbonation of coarse residue kimberlite material by inoculation with photosynthetic microbial mats. [PDF]

Geochem Trans, 2023
Jones TR, Poitras J, Gagen E, Paterson DJ, Southam G.   +4 more
europepmc   +1 more source

Reconstruction of mantle sections beneath Yakutian kimberlite pipes using monomineral thermobarometry

, 2016
Four original monomineral methods for mantle peridotite associations are used to reconstruct P–T conditions beneath the kimberlite pipes of Yakutia. The clinopyroxene Jd–Di method gives the closest coincidence with Opx barometry in ...
N. A. Alymova (2845670), N. V. Vladykin (2845706), L. N. Pokhilenko (2845700), N. P. Pokhilenko (2845691), A. M. Logvinova (2845676), Y. B. Stegnitsky (2845667), S. I. Kostrovitsky (2845673), M. A. Karpenko (2845685), S. S. Kuligin (2845703), A. Y. Rotman (2845688), I. V. Ashchepkov (2845697), O. S. Khmelnikova (2845682), E. V. Malygina (2845679), V. P. Afanasiev (2845694)   +13 more
core   +1 more source

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