Results 41 to 50 of about 657 (209)

Diamond-bearing kimberlite pipes in Wyoming and Colorado

open access: yes, 1983
Diamond-bearing kimberlite pipes in Wyoming and ...
W.D. Hausel (10069834)
core   +1 more source

Аbout use of ancient weathering crusts formation during diamond-prospecting works

open access: yesМінеральні ресурси України, 2021
Complex research of Late Devonian – Early Carboniferous and Middle-Late Triassic weathering crusts on various rocks (terrigenous-carbonate formations, dolerites, tuffs, tuffaceous formations and kimberlites) indicated that in conditions of warm and humid
M. M. Zinchuk
doaj   +1 more source

Progressively Fenitised Schist and Carbonatitic Clasts From a Metasomatic Aureole Beneath the Alkalic Dunedin Volcano, Otago, New Zealand

open access: yesNew Zealand Journal of Geology and Geophysics, Volume 69, Issue 2, June 2026.
Clasts of albite‐porphyroblastic quartzofeldspathic schist, derived from the Otago Schist basement, occur within the Port Chalmers Breccia, a diatreme at the centre of the Dunedin stratovolcano, New Zealand. Schists have undergone varying degrees of replacement reactions (at temperatures of 300° to >500°C) producing hornfelses, with Ca‐ and K‐enriched ...
Alan F. Cooper
wiley   +1 more source

Diamond-bearing kimberlite pipes in Wyoming and Colorado

open access: yes, 1985
Diamond-bearing kimberlite pipes in Wyoming and ...
W.D. Hausel (10069834)
core   +1 more source

Geochemical properties and transformation of the microelement composition of soils during the development of primary diamond deposits in Yakutia

open access: yesЗаписки Горного института, 2023
Extraction of diamonds from primary deposits in Siberia is associated with the development of kimberlite pipes in challenging environmental conditions, accompanied by a complex impact on the environment. The article presents the results of monitoring the
Yana B. Legostaeva   +3 more
doaj   +1 more source

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

open access: yesOres and metals
The article presents results of a study of the chemical composition of garnet xenocry-stals from a concentrate of the heavy fraction of kimberlites from the Yubileinaya pipe and Ottorzhenets kimberlite body. Samples from porphyry kimberlites and autolithic kimberlite breccias were taken for analysis from the Yubileinaya pipe.
Milaushkin M. V.   +4 more
openaire   +2 more sources

Experiences of Legal Pluralism in Sierra Leone: Land Governance, Neoliberal Dispossession and Gender (In)justice

open access: yesDevelopment and Change, Volume 57, Issue 2, Page 315-338, March 2026.
ABSTRACT Sierra Leone's land governance reform policies are often based on the neoliberal assumption that market growth, gender equality and women's empowerment are mutually compatible objectives. Contrary to this assumption, this article argues that while market‐oriented reforms can help to destabilize legal and cultural norms that are discriminatory ...
Mohamed Sesay, Simeon Koroma
wiley   +1 more source

Diamond-bearing kimberlite pipes in Wyoming and Colorado

open access: yes, 1984
Diamond-bearing kimberlite pipes in Wyoming and ...
W.D. Hausel (10069834)
core   +1 more source

Classification of physico-geological models

open access: yesИзвестия высших учебных заведений: Геология и разведка, 2023
Background. A new classification of physico-geological models (PhGM) is presented, which includes system series of models of physico-chemical indicators, geological objects, and geological processes.
V. М. Bondarenko, L. Shavier
doaj   +1 more source

East Meets West: The Trace of the Mesoproterozoic Kibaran Event in the Mantle Lithosphere Beneath Eastern Tanzania

open access: yesJournal of Geophysical Research: Solid Earth, Volume 131, Issue 1, January 2026.
Abstract We present elemental geochemistry and multiple isotopic systematics (Re‐Os, Lu‐Hf, Sm‐Nd and Sr) for mantle peridotite xenoliths from Lashaine in northern Tanzania. We use the data to examine how the major Proterozoic tectono‐thermal events that affected the crust of the western Tanzanian craton are imprinted on the lithospheric mantle in the ...
Sheng‐Hua Zhou   +6 more
wiley   +1 more source

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