Results 121 to 130 of about 90,092 (222)

Olivine zoning and the evolution of kimberlite systems

open access: yesInternational Kimberlite Conference Extended Abstracts: 2017, 2019
openaire   +2 more sources

Chemical zoning of olivines in the Yamato-791717 CO3 chondrite

open access: yesChemical zoning of olivines in the Yamato-791717 CO3 chondrite
P(論文) The chemical zoning profiles of olivines in the Yamato (Y)-791717 CO3 chondrite have been analyzed in order to explore its thermal history. Two alternative models were applied to distinguish igneous processes from metamorphic features; they are fractional crystallization and diffusive modification of primary composition.
openaire   +1 more source

Keeping People Out: Income Distribution, Zoning and the Quality of Public Education [PDF]

open access: yes
This paper examines the effect of community zoning regulations on allocations and welfare in a two-community model. Each community uses a local property tax to finance public education. Tax rates are determined by majority vote within each community, and
Raquel Fernandez, Richard Rogerson
core  

Olivine gabbro, olivine norite in the vicinities of Horoman river in southern Hidaka metamorphic zone (Appendix)

open access: yesThe Journal of the Japanese Association of Mineralogists, Petrologists and Economic Geologists, 1961
openaire   +3 more sources

Approved Zoning Map of Terra Ceia Island

open access: yes, 1953
This is an approved zoning map of Terra Ceia ...
Manatee County Zoning Commission
core  

Olivine gabbro, olivine norite in the vicinity of horoman River in Southern Hidaka metamorphic zone (II)

open access: yesThe Journal of the Japanese Association of Mineralogists, Petrologists and Economic Geologists, 1960
openaire   +3 more sources

Refractory inclusions in Bennu samples indicative of outer Solar System accretion. [PDF]

open access: yesNat Commun
Kawasaki N   +12 more
europepmc   +1 more source

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