Equilibration depth and temperature of Neogene alkaline lavas in the Cordillera of Alaska and Canada as a constraint on the lithosphere–asthenosphere boundary

Autor:	Dante Canil, Roy D. Hyndman
Rok vydání:	2023
Předmět:	General Earth and Planetary Sciences
Zdroj:	Canadian Journal of Earth Sciences.
ISSN:	1480-3313 0008-4077
DOI:	10.1139/cjes-2023-0005
Popis:	We have estimated the geochemical equilibration depth and temperature of the widespread Neogene alkaline basalts in the Cordillera of Alaska, Northwest Canada, and in Mexico using geobarometry on bulk compositions that have been minimally differentiated in upward transit. The method has uncertainties of about ±10 km and 2O storage capacity and viscosity across the garnet–spinel peridotite phase change at this depth. The scatter and variation in equilibration depths and temperatures are a factor of 2 greater than the recognized uncertainties, and are not yet explained.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8431e21798a7df536ed480730893d25c https://doi.org/10.1139/cjes-2023-0005 Zobrazit plný text záznamu