#petrology — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #petrology, aggregated by home.social.
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Recent laboratory findings reveal that Mercury's magmas stay molten at significantly lower temperatures than Earth's due to the planet's unique chemical composition, which is highly reduced, iron-poor, and sulfur-rich.
#PlanetaryScience #Geochemistry #Petrology #sflorg
https://www.sflorg.com/2026/04/ps04132601.html -
Are you looking for a PhD position in the field of experimental planetary science? Do you have a background in Geochemistry, Mineralogy, Petrology, or Earth and Planetary Sciences in general?
The ERC Starting Grant group ELMO led by Christian Renggli @bsky.app.profile.renggli.bsky.social is looking for a doctoral researcher to join them: https://www.mps.mpg.de/phd/experimental-laboratory-magma-ocean
Application deadline is 1 June 2026.
#PhDPosition #MPSGoettingen #JobAd #Planetology #PlanetaryScience #EarthScience #Geochemistry #Mineralogy #Petrology #MagmaOcean #Planets #RockyPlanets #Space #Astrodon #SolarSystem #Goettingen #Germany
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Facies (Petrology 💎)
In geology, a facies is a body of rock with distinctive characteristics. The characteristics can be any observable attribute of rocks and the changes that may occur in those attributes over a geographic area. A facies encompasses all the characteristics of a rock including its chemical, physical, and biological features that distinguish it from adjacent rock. The term "facies" was i...
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Iron–nickel alloy (Petrology 💎)
An iron–nickel alloy or nickel–iron alloy, abbreviated FeNi or NiFe, is a group of alloys consisting primarily of the elements nickel and iron. It is the main constituent of the "iron" planetary cores and iron meteorites. In chemistry, the acronym NiFe refers to an iron–nickel catalyst or component involved in various chemical reactions...
https://en.wikipedia.org/wiki/Iron–nickel_alloy
#IronNickelAlloy #Petrology #Meteorites #FerrousAlloys #StructureOfTheEarth
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K-U ratio (Volcanology 🌋)
The K/U Ratio is the ratio of a slightly volatile element, potassium, to a highly refractory element, uranium. It is a useful way to measure the presence of volatile elements on planetary surfaces. The K/U ratio helps explain the evolution of the planetary system and the origin of Earth's Moon.
https://en.wikipedia.org/wiki/K-U_ratio
#KURatio #Origins #Petrology #Volcanology #Astrobiology #PlanetaryGeology
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Joint (geology) (Geology terminology ⛰️)
In geology, and more specifically in structural geology, a joint is a break of natural origin in a layer or body of rock that lacks visible or measurable movement parallel to the surface of the fracture. Although joints can occur singly, they most frequently appear as joint sets and systems. A joint set is a family of parallel, evenly spaced joints...
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🚨Job Alert!🚨TT Position at Binghamton University, New York.
Relevant specializations include #mineralogy, #petrology, #planetary #geology, clay mineralogy, carbon sequestration, economic geology. ⚒️🧪http://binghamton.interviewexchange.com/jobofferdetails.jsp?JOBID=193860
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@oldclumsy_nowmad @mineralsocamerica.bsky.social @FaithfullJohn
This EBSD scan was part of an M.Sc. thesis by Arvid Gonzalez -we're working getting it published, but in the meantime, his unpublished thesis can be downloaded from:
https://escholarship.mcgill.ca/concern/theses/cf95jh65k?locale=en
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Euhedral and anhedral (Petrology 💎)
Euhedral and anhedral are terms used to describe opposite properties in the formation of crystals. Euhedral crystals are those that are well-formed, with sharp, easily recognised faces. The opposite is anhedral, which describes rock with a microstructure composed of mineral grains that have no well-formed crystal faces or cross-section shap...
https://en.wikipedia.org/wiki/Euhedral_and_anhedral
#EuhedralAndAnhedral #Petrology #MineralHabits #Crystallography
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Point counting (geology) (Geology ⛰️)
In geology, point counting is a method to determine the proportion of an area that is covered by some objects of interest. In most cases the area is a thin section or a polished slab. The objects of interest vary between subdisciplines and can for example be quartz or feldspar grains in sedimentology, any type...
https://en.wikipedia.org/wiki/Point_counting_(geology)
#PointCounting #Geology #Petrology #Geostatistics #IgneousPetrology #GeologicalTechniques
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🚨Job Alert!!🚨Assistant Professor - Mineral Science - University of Houston, Texas. High-temperature #geochemistry, #Mineralogy, igneous #petrology, and/or #metamorphic petrology #geology ⚒️
https://careers.uh.edu/jobs/assistant-professor-mineral-science-houston-texas-united-states
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Diamond inclusions (Mineralogy 💎)
Diamond inclusions are the non-diamond materials that get encapsulated inside diamond during its formation process in the mantle. The trapped materials can be other minerals or fluids like water. Since diamonds have high strength and low reactivity with either the inclusion or the volcanic host rocks which carry the diamond to the Earth's surface, ...
https://en.wikipedia.org/wiki/Diamond_inclusions
#DiamondInclusions #Diamond #Gemology #Petrology #Mineralogy
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Refractory (planetary science) (Volcanology 🌋)
In planetary science, any material that has a relatively high equilibrium condensation temperature is called refractory. The opposite of refractory is volatile. The refractory group includes elements and compounds like metals and silicates which make up the bulk of the mass of the terrestrial planets and ast...
https://en.wikipedia.org/wiki/Refractory_(planetary_science)
#Refractory #Origins #Petrology #Volcanology #Astrobiology #PlanetaryGeology
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Are you in #EarthScience and interested in improving #AcademicPublishing options in your field? I am preparing a proposal for a PCI Eart Sciences, which would be part of https://peercommunityin.org/ family of journals. The digital infrastructure and brand are there, i have benefited as an author and as an editor from PCI Paleo and I can attest to the high quality and robustness of this platform and process. Being involved doesn’t actually require committing a lot of your time, as it takes years to establish a new journal. At this point it is more about launching it and making it visible, so I am primarily looking for mid-to senior-career collaborators who can help steer publications towards this venue. Especially if you’re in the field of #EnvironmentalScience, #Tectonics, #Petrology, #Mineralogy, #PhysicalGeography, #Hydrogeology, #EarthSystemScience and #Climate you are most welcome as these fields are underrepresented in my network. You can contribute by becoming an editor, pledging a submission, or helping recruit a BigName in your field (maybe that’s you?). Please have a look at https://peercommunityin.org/ or get in touch. #OpenAccess #OpenScience #geoscience #OpenPeerReview
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Joint (geology) (Petrology 💎)
In geology, and more specifically in structural geology, a joint is a break of natural origin in a layer or body of rock that lacks visible or measurable movement parallel to the surface of the fracture. Although joints can occur singly, they most frequently appear as joint sets and systems. A joint set is a family of parallel, evenly spaced joints that can b...
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Mélange (Petrology 💎)
In geology, a mélange is a large-scale breccia, a mappable body of rock characterized by a lack of continuous bedding and the inclusion of fragments of rock of all sizes, contained in a fine-grained deformed matrix. The mélange typically consists of a jumble of large blocks of varied lithologies. Both tectonic and sedimentary processes can form mélange. Mélange occurrences are associated with...
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"Bevan started his geological work in #metamorphic #petrology, and his PhD centered on stability of siderite and metamorphism of iron formations in the Minnesota iron range. At a geological conference in Minneapolis[...], Bevan gave a talk about his thesis work there, which attracted a smart lady who was working for an iron-mining company. Two years later they married. Mary Hill French became a close partner in editing [his] manuscripts and joined in all the travels around the world." #geology
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Volcaniclastics (Volcanology 🌋)
Volcaniclastics are geologic materials composed of broken fragments of volcanic rock. These encompass all clastic volcanic materials, regardless of what process fragmented the rock, how it was subsequently transported, what environment it was deposited in, or whether nonvolcanic material is mingled with the volcanic clasts. The United State...
https://en.wikipedia.org/wiki/Volcaniclastics
#Volcaniclastics #Petrology #Volcanology #VolcanicRocks #SedimentaryRocks
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Limescale (Petrology 💎)
Limescale is a hard, chalky deposit, consisting mainly of calcium carbonate. It often builds up inside kettles, boilers, and pipework, especially that for hot water. It is also often found as a similar deposit on the inner surfaces of old pipes and other surfaces where hard water has flowed. Limescale also forms as travertine or tufa in hard water springs. The colour varies from...
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Laccolith (Petrology 💎)
A laccolith is a body of intrusive rock with a dome-shaped upper surface and a level base, fed by a conduit from below. A laccolith forms when magma rising through the Earth's crust begins to spread out horizontally, prying apart the host rock strata. The pressure of the magma is high enough that the overlying strata are forced upward, giving the l...
https://en.wikipedia.org/wiki/Laccolith
#Laccolith #Petrology #Laccoliths #IgneousRocks #GeologicDomes #SheetIntrusions
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Post-perovskite (Petrology 💎)
Post-perovskite is a high-pressure phase of magnesium silicate. It is composed of the prime oxide constituents of the Earth's rocky mantle, and its pressure and temperature for stability imply that it is likely to occur in portions of the lowermost few hundred km of Earth's mantle. The post-perovskite phase has implications for the D′′ l...
https://en.wikipedia.org/wiki/Post-perovskite
#PostPerovskite #Petrology #Perovskites #SilicateMinerals #HighPressureScience
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Post-perovskite (Petrology 💎)
Post-perovskite is a high-pressure phase of magnesium silicate. It is composed of the prime oxide constituents of the Earth's rocky mantle, and its pressure and temperature for stability imply that it is likely to occur in portions of the lowermost few hundred km of Earth's mantle. The post-perovskite phase has implications for the D′′ l...
https://en.wikipedia.org/wiki/Post-perovskite
#PostPerovskite #Petrology #Perovskites #SilicateMinerals #HighPressureScience
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Post-perovskite (Petrology 💎)
Post-perovskite is a high-pressure phase of magnesium silicate. It is composed of the prime oxide constituents of the Earth's rocky mantle, and its pressure and temperature for stability imply that it is likely to occur in portions of the lowermost few hundred km of Earth's mantle. The post-perovskite phase has implications for the D′′ l...
https://en.wikipedia.org/wiki/Post-perovskite
#PostPerovskite #Petrology #Perovskites #SilicateMinerals #HighPressureScience
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Dunham classification (Petrology 💎)
The Dunham classification system for carbonate sedimentary rocks was originally devised by Robert J. Dunham in 1962, and subsequently modified by Embry and Klovan in 1971 to include coarse-grained limestones and sediments that had been organically bound at the time of deposition. The modified Dunham Classification has subsequently become the ...
https://en.wikipedia.org/wiki/Dunham_classification
#DunhamClassification #Limestone #Petrology #SedimentaryRocks
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Lapilli (Petrology 💎)
Lapilli is a size classification of tephra, which is material that falls out of the air during a volcanic eruption or during some meteorite impacts. Lapilli is Latin for "little stones". By definition lapilli range from 2 to 64 mm in diameter. A pyroclastic particle greater than 64 mm in diameter is known as a volcanic bomb when molten, or a volcanic block when solid. Pyroclastic material...
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Early career presenter at #GSAConnects2024 tomorrow:
Dr. Jillian Kendrick
Monday, 23 Sep, 10:55 AM - 11:10 AM, Room 206B
speaking on:
THE HAMMER AND THE CRUCIBLE: PETROLOGICAL RESEARCH FROM THE 18TH TO THE 21ST CENTURY
the talk is part of the Chris Yakymchuk Session. -
Andesite line (Volcanology 🌋)
The andesite line is the most significant regional geologic distinction in the Pacific Ocean basin. It separates the mafic basaltic volcanic rocks of the Central Pacific Basin from the partially submerged continental areas of more felsic andesitic volcanic rock on its margins. The andesite line parallels the subduction zone...
https://en.wikipedia.org/wiki/Andesite_line
#AndesiteLine #Petrology #Volcanology #PlateTectonics #IgneousPetrology #HistoryOfEarthScience
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Boulders on #TuneTuesday #ForRocksSake
Out of the tin by
@Kitty and @bestiaexmachinaHere's an open door that hasn't been kicked in yet:
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Aggregate (geology) (Petrology 💎)
In the Earth sciences, aggregate has three possible meanings. In mineralogy and petrology, an aggregate is a mass of mineral crystals, mineraloid particles or rock particles. Examples are dolomite, which is an aggregate of crystals of the mineral dolomite, and rock gypsum, an aggregate of crystals of the mineral gypsum. Lapis lazuli is a type o...
https://en.wikipedia.org/wiki/Aggregate_(geology)
#Aggregate #Pedology #Petrology #Mineralogy #IndustrialMinerals
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Large igneous province (Geomorphology 🏞️)
A large igneous province is an extremely large accumulation of igneous rocks, including intrusive and extrusive, arising when magma travels through the crust towards the surface. The formation of LIPs is variously attributed to mantle plumes or to processes associated with divergent plate tectonics. The formation o...
https://en.wikipedia.org/wiki/Large_igneous_province
#LargeIgneousProvince #Orogeny #Petrology #Volcanology #FloodBasalts #IgneousRocks
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Stylolite (Petrology 💎)
Stylolites are serrated surfaces within a rock mass at which mineral material has been removed by pressure dissolution, in a deformation process that decreases the total volume of rock. Minerals which are insoluble in water, such as clays, pyrite and oxides, as well as insoluble organic matter, remain within the stylolites and make them visible. Sometimes h...
https://en.wikipedia.org/wiki/Stylolite
#Stylolite #Limestone #Petrology #SedimentaryRocks #StructuralGeology
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Large igneous province (Petrology 💎)
A large igneous province is an extremely large accumulation of igneous rocks, including intrusive and extrusive, arising when magma travels through the crust towards the surface. The formation of LIPs is variously attributed to mantle plumes or to processes associated with divergent plate tectonics. The formation of som...
https://en.wikipedia.org/wiki/Large_igneous_province
#LargeIgneousProvince #Orogeny #Petrology #Volcanology #FloodBasalts #IgneousRocks
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Andesite line (Volcanology 🌋)
The andesite line is the most significant regional geologic distinction in the Pacific Ocean basin. It separates the mafic basaltic volcanic rocks of the Central Pacific Basin from the partially submerged continental areas of more felsic andesitic volcanic rock on its margins. The andesite line parallels the subduction zone...
https://en.wikipedia.org/wiki/Andesite_line
#AndesiteLine #Petrology #Volcanology #PlateTectonics #IgneousPetrology #HistoryOfEarthScience
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QAPF diagram (Petrology 💎)
A QAPF diagram is a doubled-triangle plot diagram used to classify intrusive igneous rocks based on their mineralogy. The acronym QAPF stands for "Quartz, Alkali feldspar, Plagioclase, Feldspathoid ", which are the four mineral groups used for classification in a QAPF diagram. The percentages of the Q, A, P and F groups are normalized, i.e., recalculated so that th...
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It’s #WIPWednesday and here are three, with only the first making significant progress this week so far.
#inprogress #inprogressart #wip
#SpaceArt #SpaceArtist #AstroArt #SciArt #iss #spacestation #lunartransit #JamesWebb #Geology #Microscopic #Petrology #MastoArt #MastoArtists #FediArt #BuyIntoArt #AYearForArt #ArtMatters #ArtistsOfMastodon -
#Goldschmidt2023 is over. A very intense but rewarding week talking about #geochemistry, #petrology and #volcanoes 🌋 and meeting lots of colleagues. Looking forward to the next one...
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For those interested in open source tools and software in geochemistry, petrology and related fields, the #Goldschmidt2023 session "Geoscientists’ Little Helpers – small software tools with big impact" is showcasing a wide ensemble of new and existing projects across the community. It's certainly nice to see a spotlight on all of these things enabling new science across the community!
https://conf.goldschmidt.info/goldschmidt/2023/meetingapp.cgi/Symposium/447
#geochemistry
#petrology
#thermodynamics
#Goldschmidt
#opensource
#openscience