Top Tweets for #thinSectionThursday
Thin Section Thursday! Contributed by Sean Arthur, UG student at James Madison University. Garnet–wollastonite skarn. Isotropic garnet (black in XPL) contrasts sharply with high-order interference colors of wollastonite. #thinsectionthursday #ThinSectionThursday #Skarn
Thin Section Thursday! Image & caption by Misha Sarco, UG student at James Madison University. A porphyritic basalt from a lava flow (volcanic setting). It contains plagioclase phenocrysts in a fine-grained groundmass. #basalt #thinsectionthursday
Thin Section Thursday! Image and caption by Bjorn Isaacson, UG student, James Madison University. Eclogite: Starting as mafic basalt, through high P &T this rock reached the eclogite metamorphic facies creating the large rich isotropic garnets. #thinsectionthursday #eclogite
Thin Section Thursday! Photo & caption by Matthew Cruz, UG student: Unakite is a metamorphic rock composed of Epidote, Orthoclase, and Quartz. The vibrant colors (XPL) are of Epidote. #unakite #thinsection #thinsectionthursday
Thin Section Thursday! Photo & caption by Peyton Ellen Kaufman, UG student at James Madison Univ.: Plane light photo. Glaucophane schist, Blueschist Facies. It is likely the rock formed in a subduction zone (likely ocean-continent subduction). #thinsectionthursday #glaucophane
Thin Section Thursday! Photo and caption by Chloe Morgan, UG student at James Madison Univ.: PPL picture of a chondrite meteorite showing a chondrule, a round silicate inclusion. Note the barred texture due to rapid cooling. #thinsectionthursday #chondrule
Thin Section Thursday! contributed by Reagan Elizabeth Davis, UG student at James Madison University. The rock pictured is a Kyanite Quartzite gathered near Ogilby CA. (XPL) Kyanite shows low to moderate interference colors, and bladed form. #ThinSectionThursday #kyanite
TS Thursday: Image and caption from Luke Meaney, James Madison University in Harrisonburg, VA. Hornblende andesite from Mt. Shasta, CA. A near perfect Hornblende in Cross-polarized light. See the third order pinks, blues, greens, and yellows. #thinsectionthursday #hornblende
Plagioclase and pyroxene in basalt (Cross polarized light). Pyroxenes are mostly brightly colored, plagioclases are gray. Contributed by Bernhard Seubert.
You can contribute too! Send image(s) and short explanation to akoziol1 at udayton dot edu. #thinsectionthursday
L-size thin section of Kotoite-bearing dolomitic skarn, Kamineichi, Iwate, Japan
#ThinSectionThursday
Thin Section Thursday!
Bornite intergrown with chalcopyrite, Reflected Light. Photo by Ingrid Kjarsgaard (c)
You can contribute too! Send image(s) and short caption to akoziol1 (at) udayton dot edu. #thinsectionthursday
Thin Section Thursday! Coronitic and symplectite texture in a cpx-ilm-grt amphibolite from Precambrian basement of Southern Brasilia Orogen, city of Campinas - SP - Brazil. Shown in plane and cross-polarized light. Contributed by Helena Paiva.
#thinsectionthursday
Thin Section Thursday! Rapid growth of olivine in an experiment. Features skeletal branching (thicker, higher birefringence) and progressive infilling (lower birefringence domains). Crystal is about 1mm in size. XPL From Thomas Shea, Univ. of Hawai’i
#thinsectionthursday
Thin Section Thursday! Mica and Quartz in gneiss, XPL, gypsum plate inserted. Contributed by Bernhard Seubert.
You can contribute too! Send image(s) and short explanation to akoziol1 at udayton dot edu. #thinsectionthursday
Thin Section Thursday!
Fe-poor zoned sphalerite crystal in thin section (PPL) - ID verified by microprobe analysis. Photo by Ingrid Kjarsgaard (c)
You can contribute too! Send image(s) and short caption to akoziol1 (at) udayton dot edu. #thinsectionthursday
T.S. Thursday: 2.8 Ga Granodiorite from the Beartooth Mtns, MT in crossed polars and cathodoluminescence. In CL the red zone between microcline and plagioclase is a fine-grained myrmekite (plagioclase and quartz intergrowths). Contributed by Darrell Henry. #thinsectionthursday
T.S. Thursday!
Blue Osumilite in an ~9 Ma rhyolite lava from Jackson Hole, Wyoming. Plane polarized light. Mineral confirmation by Raman spectroscopy. Small round black things are bubbles in the epoxy. Contributed by Matt Brueseke.
#thinsectionthursday
菫青石-黒雲母ホルンフェルス / 北海道八雲町熊石
道南で数少ない中古生代の基盤岩が露出している場所。元は堆積岩(粘板岩？)で, 高温の接触変成作用で形成された。ポーフィリティックな菫青石？が見られる。
#ThinSectionThursday
Thin Section Thursday! Feldspar and quartz. Cross polarized light. Contributed by Bernhard Seubert.
You can contribute too! Send image(s) and short explanation to akoziol1 at udayton dot edu. #thinsectionthursday
Thin Section Thursday!
Incipient crystallization of plagioclase during continuous decompression in an experimental charge. Backscatter Electron Image. Contributed by Thomas Shea, Univ. of Hawai’i
Send image(s) & short caption to akoziol1 (at) udayton dot edu. #thinsectionthursday
Last Seen Hashtags on Sotwe
Most Popular Users
Elon Musk 
@elonmusk
240.6M followers
Barack Obama
@barackobama
119.2M followers
Donald J. Trump
@realdonaldtrump
111.7M followers
Cristiano Ronaldo
@cristiano
110.7M followers
Narendra Modi
@narendramodi
107M followers
Rihanna
@rihanna
97.7M followers
NASA
@nasa
92.2M followers
Justin Bieber
@justinbieber
90.9M followers
KATY PERRY
@katyperry
87.7M followers
Taylor Swift
@taylorswift13
81.5M followers
Lady Gaga
@ladygaga
73.1M followers
Virat Kohli
@imvkohli
69.9M followers
Kim Kardashian
@kimkardashian
69.8M followers
YouTube
@youtube
68.7M followers
Bill Gates
@billgates
63.9M followers
Neymar Jr
@neymarjr
62.7M followers
The Ellen Show
@theellenshow
62.4M followers
CNN
@cnn
61.9M followers
X
@x
60.8M followers
Selena Gomez
@selenagomez
60.8M followers