Sean David
@vaccinium-sultan.bsky.social
Mai ka ʻāina i ke oho o ka malanai....
Geology (mantle petrology & volcanology) and botany adventures between Hawaiʻi and Utah.
Vaccinium_sultan on IG and elsewhere.
Geology (mantle petrology & volcanology) and botany adventures between Hawaiʻi and Utah.
Vaccinium_sultan on IG and elsewhere.
Some silica-rich eruptive products of the Twin Peaks Subfield, Black Rock Desert Volcanic Field, Utah
#Obsidian #rhyolite #volcanism #geology #geoscience #volcanicglass
#Obsidian #rhyolite #volcanism #geology #geoscience #volcanicglass
November 9, 2025 at 6:07 PM
Some silica-rich eruptive products of the Twin Peaks Subfield, Black Rock Desert Volcanic Field, Utah
#Obsidian #rhyolite #volcanism #geology #geoscience #volcanicglass
#Obsidian #rhyolite #volcanism #geology #geoscience #volcanicglass
Spinel peridotite mantle xenolith and accidental fragment of Koʻolau. Basalt (note the plag phenocrysts) hosted in melilite nephelinite tuff.
Moanalua vent, Honolulu Volcanics, Koʻolau, Oʻahu, Hawaiʻi
#geoscience #geology #volcanology #volcano #mantle #xenolith #spinel #peridotite #Hawaii
Moanalua vent, Honolulu Volcanics, Koʻolau, Oʻahu, Hawaiʻi
#geoscience #geology #volcanology #volcano #mantle #xenolith #spinel #peridotite #Hawaii
October 7, 2025 at 3:33 PM
Spinel peridotite mantle xenolith and accidental fragment of Koʻolau. Basalt (note the plag phenocrysts) hosted in melilite nephelinite tuff.
Moanalua vent, Honolulu Volcanics, Koʻolau, Oʻahu, Hawaiʻi
#geoscience #geology #volcanology #volcano #mantle #xenolith #spinel #peridotite #Hawaii
Moanalua vent, Honolulu Volcanics, Koʻolau, Oʻahu, Hawaiʻi
#geoscience #geology #volcanology #volcano #mantle #xenolith #spinel #peridotite #Hawaii