I'm back in Hawaiʻi
And here is a titaniferous #augite glomerocryst with #olivine ingrowths
Koko Rift, #Honolulu #Volcanics
#Oʻahu, #Hawaiʻi
#geoscience #clinopyroxene #mineral #titanaugite #geology
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#Volcanics
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Posts tagged #Volcanics
Titaniferous #augite
Koko Rift, #Honolulu #Volcanics
#Oʻahu, #Hawaiʻi
#geoscience #clinopyroxene #mineral #titanaugite #geology
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Titaniferous #augite with #olivine ingrowths
Koko Rift, #Honolulu #Volcanics
#Oʻahu, #Hawaiʻi
#geoscience #clinopyroxene #mineral #titanaugite #geology
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“Wait! Could those be rhyolite spires over there? I need to go to that little beach next to them. “ It did not disappoint. Volcanic breccia held in an agate matrix? Yes, please. #rockhounds #rockhoundingadventures #volcanics
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White and cream layered rocks in situ on the side of the hill. Found in a limited area.
rock in layers of cream and white with bubbles of perhaps caclite on top. These were sandwiched between layers of stone.
green mineral maybe? that's a fresh break.
translucent rocks that looks like bubbles, not boitroydial crystals.
What's this? Facts: found in limited area in erosion side of hill in area of ancient volcanoes. Rocks break along layers. Made from ancient thermal springs maybe? More facts in comments. #geology #volcanics #rockhounding
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Most of the #Mōkapu vents of the #Honolulu #Volcanics. Recent work suggests non-carbonatitic (possibly cryptic) #metasomatism in their petrogenesis based on incompatible trace element ratios. Cryptic metasomatism I hate as much as kale baklava 🥲.
#geoscience #geology #hawaii #hawaiʻi #volcanology
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#Hellacopters #Volcanics #Biznaga #AutomaticLovers… Podcast en el tren
#cogeeltren #exileshmagazine
...
exileshmagazine.com/2025/02/hell... .
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Best guess is banded rhyolite with veins of agate. Iron staining on the outside prevents seeing its true colors but based on other material i think it would be grey and red. I left this one but it was fun finding it. #rockhound #rockhoundingadventures #volcanics
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More from the Mazatlan area. I am trying to get better about choosing the best ones. It’s hard. So many agates on one of the beaches. Beautiful banded rhyolite on another #geoogy #rockhound #rockhoundingadventures #agate #volcanics #sailing
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I’ve been focused on rock collecting the beaches around Mazatlan. Holy toledo! I can post only four photos but there is always tomorrow. And the next day. #rockhounding #rockhounds #agates #volcanics #sailing #rockhoundingadventures
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rhyolite in grey with accents of pink, red, and cream
Rhyolite, how do you make your coats of many colors? You are explosive in design and sport the colors of Mexico shamelessly. Rhyolites of Mazatlan. Impossible to love just one. #Rockhound #rockhoundingadventures #sailing #lapidary #volcanics Rhy
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Oh, Olivine. I love how you wink up at me from the depths of your deep grey cloak of basalt. Your apple green sparkles hit me right in the feels. #rockhound #rockhoundingadventures #volcanics #geology
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Why don’t rocks look as sparkly on video as they do when you find them? I read that there are olivine phenocrysts here and it was no lie. I’ll try to get a better photo of these green crystals. #rockhounds #volcanics #rockhoundingadventures #geology #volcano #basalt
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Titaniferous #augite and #olivine phenocrysts in #basanite
Koko Rift of the #Honolulu #Volcanics
#Oʻahu, #Hawaiʻi
#geoscience #clinopyroxene #mineral
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#Olivine and #augite #sand deposited along stream channels after yesterday's storm
Koko Rift, #Honolulu #Volcanics
Both were eroded out of basanite.
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#Clinopyroxenite and #gabbroic #xenoliths
#Laupāhoehoe Volcanics, #Maunakea.
These #mafic-#ultramafic xenoliths are #Hāmākua #Volcanics cumulates.
#geoscience #geology #volcanology #Hawaiʻi
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The late shield-building Kamaileʻunu Member of the #Waiʻanae #Volcanics include #tholeiitic, #calc-alkaline, #alkaline, and transitional lavas. These are a few examples of #ankaramite, the alkaline equivalent of a #picrite.
#volcano #volcanology #hawaii #oahu
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Currently at the Koko Rift of the #Honolulu #Volcanics
1. #olivine phenocrysts in #basanite
2. Titaniferous #augite #clinopyroxene in basanite
3. Accidental fragment of Koʻolau
#Basalt in tuff
3. Fragment of #coral, this vent erupted through #reef
#geoscience #geology #volcanology
#volcano
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Currently back in Hawaiʻi among #Honolulu #Volcanics #ultramafic #mantle xenoliths.
1. #Garnet #clinopyroxenite
2. #Spinel #lherzolite
3. Garnet clinopyroxenite hosted in #melilite #nephelinite #tuff
4. Hybrid(?) #Pyroxenite - #peridotite #xenolith
#geoscience #geology #volcanology #volcano
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#Thermodynamics #Model Identifies How #Gold Reaches Earth's Surface
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phys.org/news/2024-12...
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doi.org/10.1073/pnas...
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#geology #structuralgeology #mantle #crust #tectonics #platetectonics #subduction #sulfur #RingOfFire #volcano #volcanics #magma #trisulfur #pressure #temperature #geochemistry
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#Cenozoic Exhumation Across The #HighPlains Of Southeastern #Colorado From (U-Th)/He #Thermochronology
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doi.org/10.2113/2023...
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#GIS #spatial #mapping #geology #structuralgeology #RockyMountains #volcanics #vulcanism #SpanishPeaks #ApishapaArch #dating #erosion #peneplanation #dikes #dykes
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