#gabbro — Public Fediverse posts

Gabbro in UV Light 🪐

#gabbro #red #rock #uv

⏩ 3 new pictures from @kevinmgill https://commons.wikimedia.org/wiki/Special:ListFiles?limit=3&user=OptimusPrimeBot&ilshowall=1&offset=20260422110153

Actinolite-Chlorite Schist 🪐

#gabbro #rock #schist

⏩ 2 new pictures from @kevinmgill https://commons.wikimedia.org/wiki/Special:ListFiles?limit=2&user=OptimusPrimeBot&ilshowall=1&offset=20250911110119

Actinolite-Chlorite Schist 🪐

#gabbro #rock #schist

⏩ 2 new pictures from @kevinmgill https://commons.wikimedia.org/wiki/Special:ListFiles?limit=2&user=OptimusPrimeBot&ilshowall=1&offset=20250911110119

Actinolite-Chlorite Schist 🪐

#gabbro #rock #schist

⏩ 2 new pictures from @kevinmgill https://commons.wikimedia.org/wiki/Special:ListFiles?limit=2&user=OptimusPrimeBot&ilshowall=1&offset=20250911110119

Actinolite-Chlorite Schist 🪐

#gabbro #rock #schist

⏩ 2 new pictures from @kevinmgill https://commons.wikimedia.org/wiki/Special:ListFiles?limit=2&user=OptimusPrimeBot&ilshowall=1&offset=20250911110119

Traverser un tunnel, la tête dans les nuages : sur Le mont habité de Manuel Mathieu
Exposition présentée par Virginie Soffer, UdeM
https://nouvelles.umontreal.ca/article/2025/09/05/traverser-un-tunnel-la-tete-dans-les-nuages/
#expo #exposition #UdeM #galerie #art #culture #MontRoyal #montagne #REM #mosaïque #céramique #photo #peintre #gabbro

Epic Drilling Mission Sets New Record With 4,160 Foot [1,265 metre] Mantle Core
--
https://gizmodo.com/epic-drilling-mission-sets-new-record-with-4160-foot-mantle-core-2000484808 <-- shared media article
--
https://doi.org/10.1126/science.adr2490 <-- shared technical article
--
https://doi.org/10.1126/science.adp1058 <-- shared paper
--
#geology #drilling #mantle #crust #deepseadrilling #peridotite #core #rockcore #AtlantisMassif #geochemistry #record #gabbro #magma #sampling #life #Expedition399 #deepsea #marine

Epic Drilling Mission Sets New Record With 4,160 Foot [1,265 metre] Mantle Core
--
https://gizmodo.com/epic-drilling-mission-sets-new-record-with-4160-foot-mantle-core-2000484808 <-- shared media article
--
https://doi.org/10.1126/science.adr2490 <-- shared technical article
--
https://doi.org/10.1126/science.adp1058 <-- shared paper
--
#geology #drilling #mantle #crust #deepseadrilling #peridotite #core #rockcore #AtlantisMassif #geochemistry #record #gabbro #magma #sampling #life #Expedition399 #deepsea #marine

Epic Drilling Mission Sets New Record With 4,160 Foot [1,265 metre] Mantle Core
--
https://gizmodo.com/epic-drilling-mission-sets-new-record-with-4160-foot-mantle-core-2000484808 <-- shared media article
--
https://doi.org/10.1126/science.adr2490 <-- shared technical article
--
https://doi.org/10.1126/science.adp1058 <-- shared paper
--
#geology #drilling #mantle #crust #deepseadrilling #peridotite #core #rockcore #AtlantisMassif #geochemistry #record #gabbro #magma #sampling #life #Expedition399 #deepsea #marine

Epic Drilling Mission Sets New Record With 4,160 Foot [1,265 metre] Mantle Core
--
https://gizmodo.com/epic-drilling-mission-sets-new-record-with-4160-foot-mantle-core-2000484808 <-- shared media article
--
https://doi.org/10.1126/science.adr2490 <-- shared technical article
--
https://doi.org/10.1126/science.adp1058 <-- shared paper
--
#geology #drilling #mantle #crust #deepseadrilling #peridotite #core #rockcore #AtlantisMassif #geochemistry #record #gabbro #magma #sampling #life #Expedition399 #deepsea #marine

Epic Drilling Mission Sets New Record With 4,160 Foot [1,265 metre] Mantle Core
--
https://gizmodo.com/epic-drilling-mission-sets-new-record-with-4160-foot-mantle-core-2000484808 <-- shared media article
--
https://doi.org/10.1126/science.adr2490 <-- shared technical article
--
https://doi.org/10.1126/science.adp1058 <-- shared paper
--
#geology #drilling #mantle #crust #deepseadrilling #peridotite #core #rockcore #AtlantisMassif #geochemistry #record #gabbro #magma #sampling #life #Expedition399 #deepsea #marine

Eclogite: the Christmas Rock

Eclogite is an absolutely fascinating and beautiful rock that has earned the nickname “Christmas rock” due to its colorful mineral garnet (red) and omphacite (green). What’s so fascinating about eclogite is the way it forms

Eclogite is a high pressure and temperature metamorphic rock formed from protolithic basalt or grabbro (oceanic crust) that has been dragged down a subduction zone to (or nearly to) the upper mantle. It is brought up by a process now known as “eduction.” More here: https://c.im/@vickyveritas/109668814063843473

The process of bringing eclogite back up from a subduction zone was first proposed by W. G. Ernst in 1965, and was an immediate controversy. Ernst’s early ideas have been accepted, expanded upon, tested, and extended. As an undergrad in the 90s, I had the great pleasure to have gone on a geology field trip, led by Gary Ernst, to Pacheco Pass, California, where eclogite is found in the Franciscan Complex. He is a lovely guy, very approachable, enthusiastic and willing to share.

Here is Ernst’s famous paper/abstract: https://pubs.geoscienceworld.org/gsa/gsabulletin/article-abstract/76/8/879/5938/Mineral-Parageneses-in-Franciscan-Metamorphic?redirectedFrom=fulltext

Here is Evelyn Mervine’s great AGU blog on eclogites: https://blogs.agu.org/georneys/2011/07/02/geology-word-of-the-week-e-is-for-eclogite/

#eclogite #gabbro #basalt #garnet #omphacite #ChristmasRock #geology #ScienceMastodon @geology

Collected as a #gabbro by A. Geikie, South Point, #St.Kilda BGS sample S7186 #ThinSectionThursday Hi Res images at https://webapps.bgs.ac.uk/data/britrocks/britrocks.cfc?method=viewSamples&sampleId=405214