Results 71 to 80 of about 5,988 (208)

A study of unusual diamonds from the George Creek K1 Kimberlite dyke, Colorado

, 1995
Cathodoluminescence photomicrographs of diamonds from the George Creek Kl (section 28) kimberlite dyke in Colorado reveal complex intergrowth relationships between CO?-free and CO?-bearing diamond growth generations.
Chinn, Ingrid Lee
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Degassing structures in volcaniclastic kimberlite: Examples from southern African kimberlite pipes

, 2008
Kimberlite pipes are commonly filled with a distinctive structureless facies termed volcaniclastic kimberlite (previously also termed Tuffisitic Kimberlite Breccia, TKB), which constitutes a thorough mix of both juvenile material and lithic clasts ...
Sparks, RSJ, Field, Matthew, Field, M, Gernon, TM, Gernon, Thomas M., Sparks, R. Stephen J.   +5 more
core   +1 more source

Global Comparison of Aqueous Geochemistry and Dissolved H2/CH4 in Continental Low Temperature Serpentinization–Influenced Environments

Hydrological Processes, Volume 40, Issue 3, March 2026.
Conceptual diagram of hydrological and geochemical processes within the Santa Elena Ophiolite, Costa Rica. It highlights watershed cross‐sections, soil genesis, hyperalkaline Type II waters (pH > 11.6) with calcite crust and trapped H2/CH4 gases, seepage into surface waters, storm‐impacted stream profiles, weathered vs.
Alexandra May, Ricardo Sánchez‐Murillo, Matthew O. Schrenk, Esteban Gazel, J. Maarten de Moor, Christian Birkel, Xiaoqiang Li, Danelle Carr, María Marta Chavarría   +8 more
wiley   +1 more source

A method for controlling siltation of water catchments of district drainage systems of kimberlite mines

Записки Горного института, 2018
High contamination of mine water leads to intensive siltation of water catchments of district water drainage installations of kimberlite mines in Russia, because of which their pumping equipment periodically works in non-stationary regimes. At present, a
N. P. Ovchinnikov
doaj   +1 more source

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

Development 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

Microbial biotransformation of kimberlite ores. [PDF]

, 2008
Thesis (M.Sc.) - University of KwaZulu-Natal, Pietermaritzburg, 2008.Microbial leaching plays a significant role in the natural weathering of silicate containing ores such as diamond-bearing kimberlite.
Ramcharan, Karishma.
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Three‐dimensional structural‐material models of the formation of the Nyurbinskaya and Botuobinskaya kimberlite pipes (Yakutian Diamondiferous Province, Russia)

Геодинамика и тектонофизика, 2019
The Nyurbinskaya and Botuobinskaya kimberlitic pipes were in the focus of a comprehensive study aimed to investigate their structural and material positions as the main deposits in the Nakyn field (Yakutian Diamondife‐ rous Province, Russia).
E. V. Serebryakov, A. S. Gladkov, D. A. Koshkarev   +2 more
doaj   +1 more source

Lithospheric Delamination Below the North American Midcontinent Ceased Subsidence in Cratonic Basins

AGU Advances, Volume 7, Issue 1, February 2026.
Abstract Cratonic lithospheres carry a long history of tectonic modifications that result in heterogeneous structures, as revealed by an increasing number of geophysical observations. The existence of cratonic basins indicates protracted periods of tectonic modification, causing subsidence within global continental interiors.
Xiaotao Yang, Lihang Peng, Andrea Stevens Goddard, Lijun Liu   +3 more
wiley   +1 more source

Enhanced weathering of kimberlite residues in a field experiment: implications for carbon removal quantification and mine waste valorization

Frontiers in Climate
Scaling up enhanced rock weathering (ERW) will require gigatonnes of suitable rock, which could include mine wastes such as the estimated 3.9 Gt of kimberlite residues from historic diamond mining.
Zivi R. Schaffer, Kwon Rausis, Ian M. Power, Carlos Paulo   +3 more
doaj   +1 more source

Zonation of Hydrogen in Kimberlitic and Mantle Olivines: A Possible Proxy for the Water Content of Kimberlite Magmas

, 2011
This thesis includes an Electronic Appendix, available at http://dalspace.library.dal.caVolatiles are fundamental to many aspects of kimberlite magmatism. However, the volatile compositions and concentrations are poorly defined.
Hilchie, Luke, Hilchie, Luke Jonathan
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