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...
🚨Job Alert! 🚨 Professorship (W 2) for #Petrology at #Geosciences, Uni Potsdam. 🧪⚒️
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
Lens (geology) (Petrology 💎)
In geology, a lens or lentil is a body of ore or rock that is thick in the middle and thin at the edges, resembling a convex lens in cross-section. To thin out in all directions is to "lens out", also known as "lensing". The adjectives "lenticular" and "lentiform" are used to describe lens-like formations. Lenticle is a synonym for lentil, but may also refer to a fragment of rock that...
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
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...
🚨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
@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
Macrocrystalline (Petrology 💎)
In geology, macrocrystalline rocks have crystals large enough to easily be identified by sight with the naked eye. Macrocrystalline rocks can be further subdivided into fine-grained, medium-grained, large-grained, and coarse-grained rock, where fine-grained rocks have a grain size of less than 1 mm, medium-grained rocks have a grain size of 1 to 5 mm, large-grained rocks ...
Fluid inclusion (Petrology 💎)
A fluid inclusion is a bubble of liquid and/or gas that is trapped within a crystal. As minerals often form from a liquid or aqueous medium, tiny bubbles of that liquid can become trapped within the crystal, or along healed crystal fractures. These inclusions usually range in size from 0.01 mm to 1 mm and are only visible in detail by microscopic study, however s...
Planetary Ecologist
bse
Bill Minarik