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THE NARROW VIEW. “Perhaps I am right in saying that there is a general impression abroad that metasomatism is a sort of replacement of one mineral by another, with addition of material and mainly of importance in ore deposits.” (1925). https://lnkd.in/enQ7UEgW View in LinkedIn

BULK AQUEOUS CHEMISTRY. “Metasomatism is the drastic change in the bulk chemical composition of a rock, due to the introduction of chemicals from other surrounding rocks.” https://lnkd.in/eSpeQsqS View in LinkedIn

FRAGMENT FROM NATURE features a 1925 article by the prolific Waldemar Lindgren on metasomatism in geology. He “began a 31-year career with the U.S. Geological Survey, and then he was appointed head of the Department of Geology at the Massachusetts Institute of Technology. Also featured is an excellent article by a rare woman geologist, Dorothy Carroll, on aqueous processes in geology, at the heart of metasomatic processes. https://lnkd.in/ei_gnmMD View in LinkedIn

Getting the shape of an open tin of sardines was an interesting challenge both in shape and in texture. Luckily, sandstone can be highly polished." "" " @marryme.films " "" "#sardines #humor #tin #marine #sealife View in LinkedIn

An image from my workshop. View in LinkedIn

NO SPACE NO TIME. “A gravitational singularity, spacetime singularity or simply singularity is a condition in which gravity is so intense that spacetime itself breaks down catastrophically. As such, a singularity is by definition no longer part of the regular spacetime and cannot be determined by "where" or "when".” https://en.m.wikipedia.org/wiki/Gravitational_singularity View in LinkedIn

CHEMICAL EQUILIBRIA. “For any of these minerals, there is a certain equilibrium concentration, defined thermodynamically by the concentration at which the free energies of the species on both sides of the dissolution reaction balance exactly or kinetically where the rate of dissolution is equal to the rate of precipitation.” https://lnkd.in/eTGK5eZN View in LinkedIn

SOLUBILITY VARIABILITY. “For three common minerals at ambient temperatures." "Solubilities: " "Halite, NaCl 350,000 mg/L" "Gypsum, CaSO4,2H2O 2,500 mg/L" "Calcite, CaCO3 7 mg/L” https://lnkd.in/eTGK5eZN View in LinkedIn

Summer confetti disperses the rigid idea of deciduous plants dropping their leaves only in the autumn; the expensive process of discarding body parts is ongoing. View in LinkedIn

CHROMATOGRAPHY. “In terms of scale, at one extreme minute quantities of less than a nanogram are separated and identified during analysis, while at the other, hundreds of kilograms of material per hour are processed into refined products.” https://lnkd.in/eVWxgEc6 View in LinkedIn